US35829A
(en)
*
|
|
1862-07-08 |
|
Improvement in pumps |
US535514A
(en)
*
|
|
1895-03-12 |
|
Dominique leonard van riet |
US35494A
(en)
*
|
|
1862-06-03 |
|
Improvement in stoves |
US1688570A
(en)
|
1924-03-06 |
1928-10-23 |
Williams Foundry & Machine Com |
Vulcanizer head
|
US1699570A
(en)
|
1927-09-23 |
1929-01-22 |
American Telephone & Telegraph |
Carrier suppression modulation
|
US2057613A
(en)
*
|
1932-07-28 |
1936-10-13 |
Gen Electric |
Diversity factor receiving system
|
US2241078A
(en)
*
|
1937-11-01 |
1941-05-06 |
Frederick K Vreeland |
Multiplex communication
|
US2283575A
(en)
*
|
1938-04-19 |
1942-05-19 |
Rca Corp |
High frequency transmission system
|
GB519264A
(en)
*
|
1938-10-10 |
1940-03-20 |
Philips Nv |
Improvements in or relating to multi-carrier transmission systems
|
GB556208A
(en)
*
|
1941-04-25 |
1943-09-24 |
Standard Telephones Cables Ltd |
Arrangement for conversion of frequency modulation to phase modulation and the application thereof to the production of a frequency modulated wave from a frequency stable oscillator
|
US2462069A
(en)
*
|
1942-05-07 |
1949-02-22 |
Int Standard Electric Corp |
Radio communication system
|
US2410350A
(en)
*
|
1943-02-06 |
1946-10-29 |
Standard Telephones Cables Ltd |
Method and means for communication
|
US2472798A
(en)
*
|
1943-11-29 |
1949-06-14 |
Rca Corp |
Low-pass filter system
|
US2462181A
(en)
*
|
1944-09-28 |
1949-02-22 |
Western Electric Co |
Radio transmitting system
|
US2451430A
(en)
*
|
1946-04-23 |
1948-10-12 |
Jefferson Standard Broadcastin |
Carrier frequency shift signaling
|
BE473802A
(de)
*
|
1946-08-20 |
|
|
|
GB651011A
(en)
*
|
1947-04-22 |
1951-03-07 |
Ericsson Telefon Ab L M |
Improvements in modulation devices particularly for wide frequency bands
|
US2497859A
(en)
*
|
1947-11-19 |
1950-02-21 |
Western Union Telegraph Co |
Frequency diversity telegraph system
|
US2802208A
(en)
*
|
1952-06-25 |
1957-08-06 |
Charles F Hobbs |
Radio frequency multiplexing
|
US2985875A
(en)
*
|
1958-02-12 |
1961-05-23 |
Marconi Wireless Telegraph Co |
Radio communication systems
|
US3069679A
(en)
*
|
1959-04-22 |
1962-12-18 |
Westinghouse Electric Corp |
Multiplex communication systems
|
NL257346A
(de)
*
|
1959-10-30 |
|
|
|
US3246084A
(en)
|
1960-08-26 |
1966-04-12 |
Bolt Beranek & Newman |
Method of and apparatus for speech compression and the like
|
US3114106A
(en)
*
|
1960-11-23 |
1963-12-10 |
Mcmauus Robert Paul |
Frequency diversity system
|
US3023309A
(en)
*
|
1960-12-19 |
1962-02-27 |
Bell Telephone Labor Inc |
Communication system
|
US3104393A
(en)
*
|
1961-10-18 |
1963-09-17 |
Joseph H Vogelman |
Method and apparatus for phase and amplitude control in ionospheric communications systems
|
US3226643A
(en)
*
|
1962-01-08 |
1965-12-28 |
Avco Corp |
Command communication system of the rectangular wave type
|
US3246440A
(en)
*
|
1963-07-24 |
1966-04-19 |
Chicago United Products Compan |
Fastener assembly
|
US3241078A
(en)
|
1963-06-18 |
1966-03-15 |
Honeywell Inc |
Dual output synchronous detector utilizing transistorized differential amplifiers
|
US3258694A
(en)
*
|
1964-01-03 |
1966-06-28 |
|
Multi-channel p.m. transmitter with automatic
modulation index control |
US3384822A
(en)
*
|
1964-03-21 |
1968-05-21 |
Nippon Electric Co |
Frequency-shift-keying phase-modulation code transmission system
|
US3383598A
(en)
*
|
1965-02-15 |
1968-05-14 |
Space General Corp |
Transmitter for multiplexed phase modulated singaling system
|
DE1936252U
(de)
|
1965-05-11 |
1966-04-07 |
Vdo Schindling |
Temperaturfuehler.
|
US3426084A
(en)
*
|
1966-06-15 |
1969-02-04 |
Parke Davis & Co |
Process for the production of beta-nitroethanol
|
FR1504609A
(fr)
*
|
1966-09-21 |
1967-12-08 |
Ibm France |
Système de transmission de données
|
US3555428A
(en)
*
|
1966-10-03 |
1971-01-12 |
Xerox Corp |
Fsk receiver for detecting a data signal with the same number of cycles of each carrier frequency
|
US3454718A
(en)
*
|
1966-10-03 |
1969-07-08 |
Xerox Corp |
Fsk transmitter with transmission of the same number of cycles of each carrier frequency
|
US3617892A
(en)
*
|
1967-02-27 |
1971-11-02 |
Rca Corp |
Frequency modulation system for spreading radiated power
|
NL6706736A
(de)
|
1967-05-13 |
1968-11-14 |
Philips Nv |
|
CH497089A
(de)
|
1968-07-26 |
1970-09-30 |
Autophon Ag |
Anlage zur Übermittlung von kontinuierlichen Signalen
|
US3629696A
(en)
*
|
1968-08-06 |
1971-12-21 |
Northeast Electronics Corp |
Method and apparatus for measuring delay distortion including simultaneously applied modulated signals
|
US3614627A
(en)
|
1968-10-15 |
1971-10-19 |
Data Control Systems Inc |
Universal demodulation system
|
US3548342A
(en)
*
|
1968-10-15 |
1970-12-15 |
Ibm |
Digitally controlled amplitude modulation circuit
|
US3614630A
(en)
|
1969-02-04 |
1971-10-19 |
Develco |
Radio frequency standard and voltage controlled oscillator
|
US3626417A
(en)
*
|
1969-03-07 |
1971-12-07 |
Everett A Gilbert |
Hybrid frequency shift-amplitude modulated tone system
|
FR2040580A5
(de)
*
|
1969-04-03 |
1971-01-22 |
Inst Francais Du Petrole |
|
US3617898A
(en)
|
1969-04-09 |
1971-11-02 |
Eugene A Janning Jr |
Orthogonal passive frequency converter with control port and signal port
|
US3643168A
(en)
|
1969-07-07 |
1972-02-15 |
Standard Kallsman Ind Inc |
Solid-state tuned uhf television tuner
|
US3767984A
(en)
|
1969-09-03 |
1973-10-23 |
Nippon Electric Co |
Schottky barrier type field effect transistor
|
US3623160A
(en)
*
|
1969-09-17 |
1971-11-23 |
Sanders Associates Inc |
Data modulator employing sinusoidal synthesis
|
DE1962156B2
(de)
|
1969-12-11 |
1971-02-11 |
|
|
US6531979B1
(en)
|
1970-02-10 |
2003-03-11 |
The United States Of America As Represented By The Secretary Of The Navy |
Adaptive time-compression stabilizer
|
US3626315A
(en)
|
1970-04-07 |
1971-12-07 |
Sperry Rand Corp |
Voltage-controlled oscillator selectively injection locked to stable frequency harmonics
|
US4004237A
(en)
*
|
1970-05-01 |
1977-01-18 |
Harris Corporation |
System for communication and navigation
|
US3641442A
(en)
|
1970-06-25 |
1972-02-08 |
Hughes Aircraft Co |
Digital frequency synthesizer
|
US3621402A
(en)
*
|
1970-08-03 |
1971-11-16 |
Bell Telephone Labor Inc |
Sampled data filter
|
US3689841A
(en)
*
|
1970-10-23 |
1972-09-05 |
Signatron |
Communication system for eliminating time delay effects when used in a multipath transmission medium
|
US3702440A
(en)
|
1970-11-16 |
1972-11-07 |
Motorola Inc |
Selective calling system providing an increased number of calling codes or auxiliary information transfer
|
US3662268A
(en)
*
|
1970-11-17 |
1972-05-09 |
Bell Telephone Labor Inc |
Diversity communication system using distinct spectral arrangements for each branch
|
US3694754A
(en)
|
1970-12-28 |
1972-09-26 |
Tracor |
Suppression of electrostatic noise in antenna systems
|
US3716730A
(en)
*
|
1971-04-19 |
1973-02-13 |
Motorola Inc |
Intermodulation rejection capabilities of field-effect transistor radio frequency amplifiers and mixers
|
US3714577A
(en)
*
|
1971-05-06 |
1973-01-30 |
W Hayes |
Single sideband am-fm modulation system
|
US3735048A
(en)
*
|
1971-05-28 |
1973-05-22 |
Motorola Inc |
In-band data transmission system
|
US3719903A
(en)
|
1971-06-25 |
1973-03-06 |
Bell Telephone Labor Inc |
Double sideband modem with either suppressed or transmitted carrier
|
US3736513A
(en)
|
1971-06-28 |
1973-05-29 |
Warwick Electronics Inc |
Receiver tuning system
|
US3809821A
(en)
*
|
1971-10-08 |
1974-05-07 |
W Melvin |
Three-channel data modem apparatus
|
US3740636A
(en)
*
|
1971-11-05 |
1973-06-19 |
Us Navy |
Charge regulator and monitor for spacecraft solar cell/battery system control
|
US3806811A
(en)
*
|
1972-01-20 |
1974-04-23 |
Gte Sylvania Inc |
Multiple carrier phase modulated signal generating apparatus
|
US3764921A
(en)
|
1972-10-27 |
1973-10-09 |
Control Data Corp |
Sample and hold circuit
|
US3991277A
(en)
*
|
1973-02-15 |
1976-11-09 |
Yoshimutsu Hirata |
Frequency division multiplex system using comb filters
|
US3852530A
(en)
|
1973-03-19 |
1974-12-03 |
M Shen |
Single stage power amplifiers for multiple signal channels
|
US3868601A
(en)
*
|
1973-06-18 |
1975-02-25 |
Us Navy |
Digital single-sideband modulator
|
FR2245130A1
(en)
|
1973-09-21 |
1975-04-18 |
Jaeger |
Linear frequency-voltage converter - supplies charge to capacitor proportional to input frequency
|
US4066841A
(en)
*
|
1974-01-25 |
1978-01-03 |
Serck Industries Limited |
Data transmitting systems
|
US3949300A
(en)
*
|
1974-07-03 |
1976-04-06 |
Sadler William S |
Emergency radio frequency warning device
|
JPS5113208U
(de)
|
1974-07-17 |
1976-01-30 |
|
|
US3967202A
(en)
*
|
1974-07-25 |
1976-06-29 |
Northern Illinois Gas Company |
Data transmission system including an RF transponder for generating a broad spectrum of intelligence bearing sidebands
|
NL168099C
(nl)
*
|
1974-09-12 |
1982-02-16 |
Philips Nv |
Modulatie- en filterinrichting voor digitale signalen.
|
US4035732A
(en)
*
|
1974-10-03 |
1977-07-12 |
The United States Of America As Represented By The Secretary Of The Army |
High dynamic range receiver front end mixer requiring low local oscillator injection power
|
US3980945A
(en)
*
|
1974-10-07 |
1976-09-14 |
Raytheon Company |
Digital communications system with immunity to frequency selective fading
|
US3940697A
(en)
|
1974-12-02 |
1976-02-24 |
Hy-Gain Electronics Corporation |
Multiple band scanning radio
|
US3987280A
(en)
*
|
1975-05-21 |
1976-10-19 |
The United States Of America As Represented By The Secretary Of The Navy |
Digital-to-bandpass converter
|
US4017798A
(en)
|
1975-09-08 |
1977-04-12 |
Ncr Corporation |
Spread spectrum demodulator
|
US4013966A
(en)
*
|
1975-10-16 |
1977-03-22 |
The United States Of America As Represented By The Secretary Of The Navy |
Fm rf signal generator using step recovery diode
|
US4047121A
(en)
*
|
1975-10-16 |
1977-09-06 |
The United States Of America As Represented By The Secretary Of The Navy |
RF signal generator
|
US4019140A
(en)
*
|
1975-10-24 |
1977-04-19 |
Bell Telephone Laboratories, Incorporated |
Methods and apparatus for reducing intelligible crosstalk in single sideband radio systems
|
US4045740A
(en)
|
1975-10-28 |
1977-08-30 |
The United States Of America As Represented By The Secretary Of The Army |
Method for optimizing the bandwidth of a radio receiver
|
US4020487A
(en)
|
1975-10-31 |
1977-04-26 |
Fairchild Camera And Instrument Corporation |
Analog-to-digital converter employing common mode rejection circuit
|
JPS5823978B2
(ja)
|
1975-11-11 |
1983-05-18 |
ソニー株式会社 |
チユ−ナ
|
JPS5826699B2
(ja)
|
1975-11-13 |
1983-06-04 |
ソニー株式会社 |
チユ−ナ
|
US4032847A
(en)
|
1976-01-05 |
1977-06-28 |
Raytheon Company |
Distortion adapter receiver having intersymbol interference correction
|
US4066919A
(en)
*
|
1976-04-01 |
1978-01-03 |
Motorola, Inc. |
Sample and hold circuit
|
JPS52141113A
(en)
*
|
1976-05-19 |
1977-11-25 |
Nippon Telegr & Teleph Corp <Ntt> |
Transmission diversity system
|
NL175575C
(nl)
*
|
1976-05-28 |
1984-11-16 |
Philips Nv |
Filter- en demodulatie-inrichting.
|
US4048598A
(en)
|
1976-05-28 |
1977-09-13 |
Rca Corporation |
Uhf tuning circuit utilizing a varactor diode
|
US4081748A
(en)
*
|
1976-07-01 |
1978-03-28 |
Northern Illinois Gas Company |
Frequency/space diversity data transmission system
|
US4080573A
(en)
|
1976-07-16 |
1978-03-21 |
Motorola, Inc. |
Balanced mixer using complementary devices
|
US4051475A
(en)
|
1976-07-21 |
1977-09-27 |
The United States Ofamerica As Represented By The Secretary Of The Army |
Radio receiver isolation system
|
JPS5914939B2
(ja)
|
1976-09-30 |
1984-04-06 |
日本電気株式会社 |
搬送波再生装置
|
JPS53140962A
(en)
|
1977-05-16 |
1978-12-08 |
Hitachi Denshi Ltd |
Electronic switch circuit
|
US4145659A
(en)
|
1977-05-25 |
1979-03-20 |
General Electric Company |
UHF electronic tuner
|
US4130765A
(en)
*
|
1977-05-31 |
1978-12-19 |
Rafi Arakelian |
Low supply voltage frequency multiplier with common base transistor amplifier
|
US4173164A
(en)
*
|
1977-06-01 |
1979-11-06 |
Nippon Gakki Seizo Kabushiki Kaisha |
Electronic musical instrument with frequency modulation of a tone signal with an audible frequency signal
|
US4346477A
(en)
*
|
1977-08-01 |
1982-08-24 |
E-Systems, Inc. |
Phase locked sampling radio receiver
|
JPS5461822A
(en)
|
1977-10-27 |
1979-05-18 |
Sony Corp |
Transmitter circuit
|
US4170764A
(en)
*
|
1978-03-06 |
1979-10-09 |
Bell Telephone Laboratories, Incorporated |
Amplitude and frequency modulation system
|
DE2813946C2
(de)
*
|
1978-03-31 |
1980-01-31 |
Siemens Ag, 1000 Berlin Und 8000 Muenchen |
Filterschaltung mit einer biquadratischen Übertragungsfunktion
|
US4204171A
(en)
*
|
1978-05-30 |
1980-05-20 |
Rca Corporation |
Filter which tracks changing frequency of input signal
|
US4241451A
(en)
|
1978-06-26 |
1980-12-23 |
Rockwell International Corporation |
Single sideband signal demodulator
|
US4193036A
(en)
|
1978-07-03 |
1980-03-11 |
Motorola, Inc. |
Balanced active mixer circuit
|
US4210872A
(en)
*
|
1978-09-08 |
1980-07-01 |
American Microsystems, Inc. |
High pass switched capacitor filter section
|
US4308614A
(en)
*
|
1978-10-26 |
1981-12-29 |
Fisher Charles B |
Noise-reduction sampling system
|
US4253067A
(en)
|
1978-12-11 |
1981-02-24 |
Rockwell International Corporation |
Baseband differentially phase encoded radio signal detector
|
WO1980001633A1
(en)
|
1979-01-29 |
1980-08-07 |
Anaconda Co |
Modified vestigial side band transmission system
|
US4389579A
(en)
*
|
1979-02-13 |
1983-06-21 |
Motorola, Inc. |
Sample and hold circuit
|
DE2921219C2
(de)
|
1979-05-25 |
1986-12-04 |
Blaupunkt-Werke Gmbh, 3200 Hildesheim |
HF-Empfangsstufe für Fernsehgeräte
|
US4250458A
(en)
|
1979-05-31 |
1981-02-10 |
Digital Communications Corporation |
Baseband DC offset detector and control circuit for DC coupled digital demodulator
|
US4409877A
(en)
*
|
1979-06-11 |
1983-10-18 |
Cbs, Inc. |
Electronic tone generating system
|
US4320361A
(en)
*
|
1979-07-20 |
1982-03-16 |
Marconi Instruments Limited |
Amplitude and frequency modulators using a switchable component controlled by data signals
|
US4245355A
(en)
*
|
1979-08-08 |
1981-01-13 |
Eaton Corporation |
Microwave frequency converter
|
US4320536A
(en)
*
|
1979-09-18 |
1982-03-16 |
Dietrich James L |
Subharmonic pumped mixer circuit
|
JPS5648732A
(en)
*
|
1979-09-28 |
1981-05-02 |
Nec Corp |
Radio equipment
|
FR2471081B1
(fr)
*
|
1979-11-30 |
1986-05-30 |
Thomson Csf |
Filtre a capacites commutees a transfert de charges
|
US4356558A
(en)
*
|
1979-12-20 |
1982-10-26 |
Martin Marietta Corporation |
Optimum second order digital filter
|
US4286283A
(en)
|
1979-12-20 |
1981-08-25 |
Rca Corporation |
Transcoder
|
FR2473808A1
(fr)
*
|
1980-01-11 |
1981-07-17 |
Thomson Csf |
Melangeur subharmonique pour recepteur a ondes millimetriques et recepteur utilisant un tel melangeur
|
US4370572A
(en)
*
|
1980-01-17 |
1983-01-25 |
Trw Inc. |
Differential sample-and-hold circuit
|
FR2474791A1
(fr)
*
|
1980-01-29 |
1981-07-31 |
Thomson Csf |
Systeme de transmission radioelectrique en diversite, de structure simple et economique, et reseau de telecommunication comportant de tels systemes
|
DE3007907A1
(de)
|
1980-03-01 |
1981-09-17 |
Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt |
Digitaler empfaenger
|
DE3016082C2
(de)
*
|
1980-04-25 |
1982-10-21 |
Siemens AG, 1000 Berlin und 8000 München |
Aus CTD-Elementen bestehende, mit einer vorgebbaren Abtast- und Taktfrequenz f ↓T↓ betriebene elektrische Filterschaltung
|
US4253066A
(en)
*
|
1980-05-13 |
1981-02-24 |
Fisher Charles B |
Synchronous detection with sampling
|
US4485347A
(en)
*
|
1980-09-04 |
1984-11-27 |
Mitsubishi Denki Kabushiki Kaisha |
Digital FSK demodulator
|
US4393352A
(en)
*
|
1980-09-18 |
1983-07-12 |
The Perkin-Elmer Corporation |
Sample-and-hold hybrid active RC filter
|
US4472785A
(en)
*
|
1980-10-13 |
1984-09-18 |
Victor Company Of Japan, Ltd. |
Sampling frequency converter
|
US4334324A
(en)
|
1980-10-31 |
1982-06-08 |
Rca Corporation |
Complementary symmetry FET frequency converter circuits
|
US4517519A
(en)
*
|
1980-11-07 |
1985-05-14 |
Kabushiki Kaisha Suwa Seikosha |
FSK Demodulator employing a switched capacitor filter and period counters
|
US4360867A
(en)
*
|
1980-12-08 |
1982-11-23 |
Bell Telephone Laboratories, Incorporated |
Broadband frequency multiplication by multitransition operation of step recovery diode
|
DE3047386A1
(de)
*
|
1980-12-16 |
1982-07-15 |
Philips Patentverwaltung Gmbh, 2000 Hamburg |
Empfaenger zum empfang von am-signalen, deren traeger frequenz- oder phasenmoduliert ist
|
US4363976A
(en)
*
|
1981-01-19 |
1982-12-14 |
Rockwell International Corporation |
Subinterval sampler
|
US4393395A
(en)
|
1981-01-26 |
1983-07-12 |
Rca Corporation |
Balanced modulator with feedback stabilization of carrier balance
|
GB2094080B
(en)
*
|
1981-02-18 |
1984-11-07 |
Sony Corp |
Automatic fine tuning circuits for television receivers
|
GB2094079A
(en)
|
1981-02-20 |
1982-09-08 |
Philips Electronic Associated |
Fm demodulator
|
US4352209A
(en)
|
1981-03-23 |
1982-09-28 |
John Ma |
Up-down frequency converter for cable T.V.
|
US4384357A
(en)
|
1981-04-03 |
1983-05-17 |
Canadian Patens & Development Limited |
Self-synchronization circuit for a FFSK or MSK demodulator
|
US4380828A
(en)
|
1981-05-26 |
1983-04-19 |
Zenith Radio Corporation |
UHF MOSFET Mixer
|
DE3121146A1
(de)
*
|
1981-05-27 |
1983-01-05 |
Siemens AG, 1000 Berlin und 8000 München |
Digitales funksystem
|
US4481642A
(en)
*
|
1981-06-02 |
1984-11-06 |
Texas Instruments Incorporated |
Integrated circuit FSK modem
|
US4483017A
(en)
|
1981-07-31 |
1984-11-13 |
Rca Corporation |
Pattern recognition system using switched capacitors
|
US4517520A
(en)
*
|
1981-08-24 |
1985-05-14 |
Trio Kabushiki Kaisha |
Circuit for converting a staircase waveform into a smoothed analog signal
|
GB2106359B
(en)
*
|
1981-09-24 |
1985-07-03 |
Standard Telephones Cables Ltd |
Direct conversion radio receiver for fm signals
|
FR2515449B1
(fr)
*
|
1981-10-23 |
1986-08-14 |
Thomson Csf |
Dispositif melangeur subharmonique hyperfrequence et systeme hyperfrequence utilisant un tel dispositif
|
US4446438A
(en)
*
|
1981-10-26 |
1984-05-01 |
Gte Automatic Electric Incorporated |
Switched capacitor n-path filter
|
US4441080A
(en)
|
1981-12-17 |
1984-04-03 |
Bell Telephone Laboratories, Incorporated |
Amplifier with controlled gain
|
JPS58105493A
(ja)
*
|
1981-12-16 |
1983-06-23 |
Matsushita Electric Ind Co Ltd |
パルス信号振幅記憶保持装置
|
FR2521784B1
(fr)
|
1982-02-12 |
1985-09-20 |
Thomson Csf |
Melangeur a transistor pour hyperfrequences
|
JPS58133004A
(ja)
|
1982-02-03 |
1983-08-08 |
Matsushita Electric Ind Co Ltd |
振幅検波装置
|
US4456990A
(en)
*
|
1982-02-10 |
1984-06-26 |
Fisher Charles B |
Periodic wave elimination by negative feedback
|
JPS58139399A
(ja)
|
1982-02-15 |
1983-08-18 |
Hitachi Ltd |
半導体記憶装置
|
US4479226A
(en)
*
|
1982-03-29 |
1984-10-23 |
At&T Bell Laboratories |
Frequency-hopped single sideband mobile radio system
|
US4484143A
(en)
|
1982-05-17 |
1984-11-20 |
Rockwell International Corporation |
CCD Demodulator circuit
|
US4481490A
(en)
*
|
1982-06-07 |
1984-11-06 |
Ael Microtel, Ltd. |
Modulator utilizing high and low frequency carriers
|
US4504803A
(en)
*
|
1982-06-28 |
1985-03-12 |
Gte Lenkurt, Incorporated |
Switched capacitor AM modulator/demodulator
|
US4510467A
(en)
|
1982-06-28 |
1985-04-09 |
Gte Communication Systems Corporation |
Switched capacitor DSB modulator/demodulator
|
US4463320A
(en)
*
|
1982-07-06 |
1984-07-31 |
Rockwell International Corporation |
Automatic gain control circuit
|
US4510453A
(en)
|
1982-07-13 |
1985-04-09 |
Westinghouse Electric Corp. |
Frequency modulation or pulse modulation demodulator
|
US4470145A
(en)
|
1982-07-26 |
1984-09-04 |
Hughes Aircraft Company |
Single sideband quadricorrelator
|
WO1985004750A1
(en)
|
1982-11-26 |
1985-10-24 |
Mitsubishi Denki Kabushiki Kaisha |
Analog input circuit
|
JPS59118315U
(ja)
*
|
1983-01-28 |
1984-08-09 |
ソニー株式会社 |
バツフア回路
|
JPS59144249A
(ja)
|
1983-02-08 |
1984-08-18 |
Nec Corp |
パルス信号伝送方式
|
GB2141007B
(en)
*
|
1983-06-02 |
1986-07-23 |
Standard Telephones Cables Ltd |
Demodulator logic for frequency shift keyed signals
|
US4616191A
(en)
*
|
1983-07-05 |
1986-10-07 |
Raytheon Company |
Multifrequency microwave source
|
NL8302482A
(nl)
*
|
1983-07-12 |
1985-02-01 |
Philips Nv |
Bandsperfilter van het geschakelde capaciteiten type.
|
US4663744A
(en)
*
|
1983-08-31 |
1987-05-05 |
Terra Marine Engineering, Inc. |
Real time seismic telemetry system
|
US4591930A
(en)
|
1983-09-23 |
1986-05-27 |
Eastman Kodak Company |
Signal processing for high resolution electronic still camera
|
GB2149244B
(en)
*
|
1983-10-29 |
1987-01-21 |
Standard Telephones Cables Ltd |
Digital demodulator arrangement for quadrature signals
|
FR2554994B1
(fr)
*
|
1983-11-15 |
1989-05-26 |
Thomson Csf |
Dispositif de generation d'une frequence fractionnaire d'une frequence de reference
|
JPH0793553B2
(ja)
|
1983-11-18 |
1995-10-09 |
株式会社日立製作所 |
スイッチド・キャパシタ・フィルタ
|
US4660164A
(en)
|
1983-12-05 |
1987-04-21 |
The United States Of America As Represented By The Secretary Of The Navy |
Multiplexed digital correlator
|
US4577157A
(en)
*
|
1983-12-12 |
1986-03-18 |
International Telephone And Telegraph Corporation |
Zero IF receiver AM/FM/PM demodulator using sampling techniques
|
JPS60130203A
(ja)
|
1983-12-19 |
1985-07-11 |
Matsushita Electric Ind Co Ltd |
周波数変換器
|
US4562414A
(en)
|
1983-12-27 |
1985-12-31 |
Motorola, Inc. |
Digital frequency modulation system and method
|
JPS60141027A
(ja)
|
1983-12-28 |
1985-07-26 |
Nec Corp |
周波数制御装置
|
US4563773A
(en)
*
|
1984-03-12 |
1986-01-07 |
The United States Of America As Represented By The Secretary Of The Army |
Monolithic planar doped barrier subharmonic mixer
|
US4547746A
(en)
|
1984-04-09 |
1985-10-15 |
Rockwell International Corporation |
VSWR Tolerant linear power amplifier
|
US4970703A
(en)
|
1984-05-10 |
1990-11-13 |
Magnavox Government And Industrial Electronics Company |
Switched capacitor waveform processing circuit
|
US4601046A
(en)
|
1984-05-15 |
1986-07-15 |
Halpern Peter H |
System for transmitting data through a troposcatter medium
|
GB2161344A
(en)
|
1984-07-06 |
1986-01-08 |
Philips Electronic Associated |
Transmission of digital data
|
JPS6160515U
(de)
*
|
1984-08-22 |
1986-04-23 |
|
|
US4603300A
(en)
*
|
1984-09-21 |
1986-07-29 |
General Electric Company |
Frequency modulation detector using digital signal vector processing
|
US4621217A
(en)
*
|
1984-09-21 |
1986-11-04 |
Tektronix, Inc. |
Anti-aliasing filter circuit for oscilloscopes
|
US4596046A
(en)
*
|
1984-10-01 |
1986-06-17 |
Motorola, Inc. |
Split loop AFC system for a SSB receiver
|
CH666584A5
(de)
|
1984-11-22 |
1988-07-29 |
Zellweger Uster Ag |
Verfahren und vorrichtung zum demodulieren von hochfrequent modulierten signalen mittels digitaler filter und digitaler demodulatoren, sowie anwendung des verfahrens in einem fernsteuerempfaenger.
|
US4716388A
(en)
|
1984-12-24 |
1987-12-29 |
Jacobs Gordon M |
Multiple output allpass switched capacitor filters
|
US4651210A
(en)
*
|
1984-12-24 |
1987-03-17 |
Rca Corporation |
Adjustable gamma controller
|
US4570738A
(en)
*
|
1985-01-03 |
1986-02-18 |
Yamaha Hatsudoki Kabushiki Kaisha |
Snow vehicle equipped with wide, low-pressure tires
|
US4716376A
(en)
|
1985-01-31 |
1987-12-29 |
At&T Information Systems Inc. |
Adaptive FSK demodulator and threshold detector
|
DE3671977D1
(de)
|
1985-03-04 |
1990-07-19 |
Dymax Corp |
Sender-empfaenger mit aufwaertsmischung zum verfolgen eines kennzeichen eines zellgewebes.
|
US4893316A
(en)
|
1985-04-04 |
1990-01-09 |
Motorola, Inc. |
Digital radio frequency receiver
|
JPS61248602A
(ja)
|
1985-04-26 |
1986-11-05 |
Toshiba Corp |
周波数2逓倍器
|
DE3516492A1
(de)
|
1985-05-08 |
1986-11-13 |
Standard Elektrik Lorenz Ag, 7000 Stuttgart |
Funkempfaenger
|
US4612518A
(en)
*
|
1985-05-28 |
1986-09-16 |
At&T Bell Laboratories |
QPSK modulator or demodulator using subharmonic pump carrier signals
|
US4833445A
(en)
|
1985-06-07 |
1989-05-23 |
Sequence Incorporated |
Fiso sampling system
|
GB2177273A
(en)
|
1985-06-26 |
1987-01-14 |
Philips Electronic Associated |
R f power amplifier
|
DE3674096D1
(de)
|
1985-07-03 |
1990-10-18 |
Siemens Ag |
Digitale filterweiche, insbesondere fuer einen datenempfaenger.
|
GB2177876A
(en)
|
1985-07-08 |
1987-01-28 |
Philips Electronic Associated |
Radio system and a transmitter and a receiver for use in the system
|
US4634998A
(en)
*
|
1985-07-17 |
1987-01-06 |
Hughes Aircraft Company |
Fast phase-lock frequency synthesizer with variable sampling efficiency
|
US4810904A
(en)
|
1985-07-17 |
1989-03-07 |
Hughes Aircraft Company |
Sample-and-hold phase detector circuit
|
US4713164A
(en)
*
|
1985-07-25 |
1987-12-15 |
Confidence Corporation |
Apparatus for analyzing malodors in the breath
|
US4675882A
(en)
|
1985-09-10 |
1987-06-23 |
Motorola, Inc. |
FM demodulator
|
US4785463A
(en)
|
1985-09-03 |
1988-11-15 |
Motorola, Inc. |
Digital global positioning system receiver
|
GB2181914B
(en)
|
1985-10-22 |
1989-09-20 |
Plessey Co Plc |
Frequency doubling oscillator and heterodyne circuit incorporating same
|
US5345239A
(en)
|
1985-11-12 |
1994-09-06 |
Systron Donner Corporation |
High speed serrodyne digital frequency translator
|
US4653117A
(en)
|
1985-11-18 |
1987-03-24 |
Motorola, Inc. |
Dual conversion FM receiver using phase locked direct conversion IF
|
CA1244139A
(en)
|
1985-12-11 |
1988-11-01 |
Larry J. Conway |
Microwave waveform receiver
|
US4648021A
(en)
|
1986-01-03 |
1987-03-03 |
Motorola, Inc. |
Frequency doubler circuit and method
|
US4740675A
(en)
|
1986-04-10 |
1988-04-26 |
Hewlett-Packard Company |
Digital bar code slot reader with threshold comparison of the differentiated bar code signal
|
US4751468A
(en)
|
1986-05-01 |
1988-06-14 |
Tektronix, Inc. |
Tracking sample and hold phase detector
|
US4733403A
(en)
|
1986-05-12 |
1988-03-22 |
Motorola, Inc. |
Digital zero IF selectivity section
|
JPS62264728A
(ja)
|
1986-05-12 |
1987-11-17 |
Minolta Camera Co Ltd |
A/d変換装置
|
IT1204401B
(it)
|
1986-06-20 |
1989-03-01 |
Sgs Microelettronica Spa |
Dispositivo di filtraggio passabanda a dati campionati
|
US4757538A
(en)
|
1986-07-07 |
1988-07-12 |
Tektronix, Inc. |
Separation of L+R from L-R in BTSC system
|
US4688253A
(en)
|
1986-07-28 |
1987-08-18 |
Tektronix, Inc. |
L+R separation system
|
US4791600A
(en)
|
1986-07-28 |
1988-12-13 |
Tektronix, Inc. |
Digital pipelined heterodyne circuit
|
US4740792A
(en)
*
|
1986-08-27 |
1988-04-26 |
Hughes Aircraft Company |
Vehicle location system
|
JPS6369099A
(ja)
|
1986-09-10 |
1988-03-29 |
Yamaha Corp |
サンプルホ−ルド回路
|
US4745463A
(en)
|
1986-09-25 |
1988-05-17 |
Rca Licensing Corporation |
Generalized chrominance signal demodulator for a sampled data television signal processing system
|
US4791584A
(en)
|
1986-10-15 |
1988-12-13 |
Eastman Kodak Company |
Sub-nyquist interferometry
|
NL8603110A
(nl)
|
1986-12-08 |
1988-07-01 |
Philips Nv |
Schakeling voor het terugwinnen van een draaggolf.
|
JPS63153691A
(ja)
|
1986-12-17 |
1988-06-27 |
Star Seimitsu Kk |
半導体デ−タキヤリアシステムにおけるデ−タ授受方式
|
US4811422A
(en)
|
1986-12-22 |
1989-03-07 |
Kahn Leonard R |
Reduction of undesired harmonic components
|
US5014304A
(en)
|
1987-01-09 |
1991-05-07 |
Sgs-Thomson Microelectronics S.R.L. |
Method of reconstructing an analog signal, particularly in digital telephony applications, and a circuit device implementing the method
|
GB2201559A
(en)
|
1987-01-23 |
1988-09-01 |
Gen Electric Plc |
Electrical signal mixer circuit
|
US4737969A
(en)
|
1987-01-28 |
1988-04-12 |
Motorola, Inc. |
Spectrally efficient digital modulation method and apparatus
|
US4806790A
(en)
|
1987-02-16 |
1989-02-21 |
Nec Corporation |
Sample-and-hold circuit
|
JPS63215185A
(ja)
|
1987-03-03 |
1988-09-07 |
Matsushita Electric Ind Co Ltd |
サブナイキスト符号化装置および復号化装置
|
FR2612018B1
(fr)
|
1987-03-06 |
1989-05-26 |
Labo Electronique Physique |
Melangeur hyperfrequences
|
US4871987A
(en)
|
1987-03-28 |
1989-10-03 |
Kabushiki Kaisha Kenwood |
FSK or am modulator with digital waveform shaping
|
US4761798A
(en)
|
1987-04-02 |
1988-08-02 |
Itt Aerospace Optical |
Baseband phase modulator apparatus employing digital techniques
|
US4816704A
(en)
|
1987-04-21 |
1989-03-28 |
Fiori David |
Frequency-to-voltage converter
|
US4789837A
(en)
|
1987-04-22 |
1988-12-06 |
Sangamo Weston, Inc. |
Switched capacitor mixer/multiplier
|
FR2615675B1
(fr)
|
1987-05-21 |
1989-06-30 |
Alcatel Espace |
Procede de demodulation de signaux modules numeriquement et dispositif de mise en oeuvre d'un tel procede
|
US4855894A
(en)
|
1987-05-25 |
1989-08-08 |
Kabushiki Kaisha Kenwood |
Frequency converting apparatus
|
US4811362A
(en)
|
1987-06-15 |
1989-03-07 |
Motorola, Inc. |
Low power digital receiver
|
US4910752A
(en)
|
1987-06-15 |
1990-03-20 |
Motorola, Inc. |
Low power digital receiver
|
US4772853A
(en)
|
1987-08-12 |
1988-09-20 |
Rockwell International Corporation |
Digital delay FM demodulator with filtered noise dither
|
US4862121A
(en)
|
1987-08-13 |
1989-08-29 |
Texas Instruments Incorporated |
Switched capacitor filter
|
GB8719849D0
(en)
|
1987-08-21 |
1987-09-30 |
British Telecomm |
Fsk discriminator
|
FR2619973B1
(fr)
|
1987-08-26 |
1990-01-05 |
France Etat |
Dispositif de filtre echantillonne a capacites commutees
|
CA1287127C
(en)
|
1987-08-29 |
1991-07-30 |
Yasuyuki Oishi |
Fsk demodulation circuit
|
GB2209442A
(en)
|
1987-09-04 |
1989-05-10 |
Marconi Instruments Ltd |
Frequency synthesizer
|
US4841265A
(en)
|
1987-09-25 |
1989-06-20 |
Nec Corporation |
Surface acoustic wave filter
|
US5020149A
(en)
|
1987-09-30 |
1991-05-28 |
Conifer Corporation |
Integrated down converter and interdigital filter apparatus and method for construction thereof
|
WO1989004093A1
(en)
|
1987-10-27 |
1989-05-05 |
Nysen Paul A |
Passive universal communicator
|
US4922452A
(en)
|
1987-11-16 |
1990-05-01 |
Analytek, Ltd. |
10 Gigasample/sec two-stage analog storage integrated circuit for transient digitizing and imaging oscillography
|
US4814649A
(en)
|
1987-12-18 |
1989-03-21 |
Rockwell International Corporation |
Dual gate FET mixing apparatus with feedback means
|
USRE35494E
(en)
|
1987-12-22 |
1997-04-22 |
Sgs-Thomson Microelectronics, S.R.L. |
Integrated active low-pass filter of the first order
|
US4857928A
(en)
|
1988-01-28 |
1989-08-15 |
Motorola, Inc. |
Method and arrangement for a sigma delta converter for bandpass signals
|
US4819252A
(en)
|
1988-02-16 |
1989-04-04 |
Thomson Consumer Electronics, Inc. |
Sampled data subsampling apparatus
|
GB2215545A
(en)
|
1988-03-16 |
1989-09-20 |
Philips Electronic Associated |
A direct-conversion receiver
|
NL8800696A
(nl)
|
1988-03-21 |
1989-10-16 |
Philips Nv |
Bemonsteringssysteem, pulsgeneratiesschakeling en bemonsteringsschakeling geschikt voor toepassing in een bemonsteringssysteem, en oscilloscoop voorzien van een bemonsteringssysteem.
|
US4885671A
(en)
|
1988-03-24 |
1989-12-05 |
General Electric Company |
Pulse-by-pulse current mode controlled power supply
|
GB2215945A
(en)
|
1988-03-26 |
1989-09-27 |
Stc Plc |
Digital direct conversion radio
|
US4995055A
(en)
|
1988-06-16 |
1991-02-19 |
Hughes Aircraft Company |
Time shared very small aperture satellite terminals
|
GB2219899A
(en)
|
1988-06-17 |
1989-12-20 |
Philips Electronic Associated |
A zero if receiver
|
FR2633467B1
(fr)
|
1988-06-24 |
1990-08-24 |
Thomson Csf |
Multiplicateur de frequence a rang de multiplication programmable
|
US4893341A
(en)
|
1989-08-01 |
1990-01-09 |
At&E Corporation |
Digital receiver operating at sub-nyquist sampling rate
|
US4944025A
(en)
|
1988-08-09 |
1990-07-24 |
At&E Corporation |
Direct conversion FM receiver with offset
|
ATE96558T1
(de)
|
1988-08-31 |
1993-11-15 |
Siemens Ag |
Multieingangs-vier-quadranten-multiplizierer.
|
GB2222488A
(en)
*
|
1988-08-31 |
1990-03-07 |
Philips Electronic Associated |
Broad bandwidth planar power combiner/divider device
|
SE463540B
(sv)
|
1988-09-19 |
1990-12-03 |
Ericsson Telefon Ab L M |
Saett foer att i ett radiokommunikationssystem digitalisera godtyckliga radiosignaler samt anordning foer utoevande av saettet
|
US5062122A
(en)
|
1988-09-28 |
1991-10-29 |
Kenwood Corporation |
Delay-locked loop circuit in spread spectrum receiver
|
US5220583A
(en)
|
1988-10-03 |
1993-06-15 |
Motorola, Inc. |
Digital fm demodulator with a reduced sampling rate
|
US4972436A
(en)
|
1988-10-14 |
1990-11-20 |
Hayes Microcomputer Products, Inc. |
High performance sigma delta based analog modem front end
|
US4868908A
(en)
|
1988-10-18 |
1989-09-19 |
Ventritex |
Power supply down-conversion, regulation and low battery detection system
|
US4943974A
(en)
|
1988-10-21 |
1990-07-24 |
Geostar Corporation |
Detection of burst signal transmissions
|
US5016242A
(en)
|
1988-11-01 |
1991-05-14 |
Gte Laboratories Incorporated |
Microwave subcarrier generation for fiber optic systems
|
JPH02131629A
(ja)
|
1988-11-12 |
1990-05-21 |
Nec Corp |
周波数ダイバーシティ用送受信装置
|
US4894766A
(en)
|
1988-11-25 |
1990-01-16 |
Hazeltine Corporation |
Power supply frequency converter
|
US4873492A
(en)
|
1988-12-05 |
1989-10-10 |
American Telephone And Telegraph Company, At&T Bell Laboratories |
Amplifier with modulated resistor gain control
|
US5280648A
(en)
|
1988-12-06 |
1994-01-18 |
Zenith Electronics Corporation |
Double-balanced high level wide band RF mixer
|
US5027163A
(en)
|
1988-12-06 |
1991-06-25 |
Zenith Electronics Corporation |
High level wide band RF mixer
|
GB2225910A
(en)
|
1988-12-08 |
1990-06-13 |
Philips Electronic Associated |
Processing sampled analogue electrical signals
|
FR2640829B1
(fr)
|
1988-12-20 |
1991-02-08 |
Thomson Hybrides Microondes |
Dispositif pour la modulation ou la demodulation directe en hyperfrequences
|
US4885587A
(en)
|
1988-12-22 |
1989-12-05 |
Westinghouse Electric Corp. |
Multibit decorrelated spur digital radio frequency memory
|
JP2576612B2
(ja)
|
1988-12-28 |
1997-01-29 |
日本ビクター株式会社 |
信号変換装置
|
US5058107A
(en)
|
1989-01-05 |
1991-10-15 |
Hughes Aircraft Company |
Efficient digital frequency division multiplexed signal receiver
|
US5251218A
(en)
|
1989-01-05 |
1993-10-05 |
Hughes Aircraft Company |
Efficient digital frequency division multiplexed signal receiver
|
US4890162A
(en)
|
1989-01-26 |
1989-12-26 |
Rca Licensing Corporation |
Adjustable antialias filters
|
US5006854A
(en)
|
1989-02-13 |
1991-04-09 |
Silicon Systems, Inc. |
Method and apparatus for converting A/D nonlinearities to random noise
|
US4896152A
(en)
|
1989-03-02 |
1990-01-23 |
General Electric Company |
Telemetry system with a sending station using recursive filter for bandwidth limiting
|
US4902979A
(en)
|
1989-03-10 |
1990-02-20 |
General Electric Company |
Homodyne down-converter with digital Hilbert transform filtering
|
US4888557A
(en)
|
1989-04-10 |
1989-12-19 |
General Electric Company |
Digital subharmonic sampling down-converter
|
DK0393470T3
(da)
|
1989-04-20 |
1995-07-10 |
Siemens Ag |
Transmissionsstrækning
|
CA2014916C
(en)
|
1989-04-20 |
1994-11-08 |
Yoichiro Minami |
Direct conversion receiver with dithering local carrier frequency for detecting transmitted carrier frequency
|
FR2646741B1
(fr)
|
1989-05-03 |
1994-09-02 |
Thomson Hybrides Microondes |
Echantillonneur-bloqueur a haute frequence d'echantillonnage
|
US4931716A
(en)
*
|
1989-05-05 |
1990-06-05 |
Milan Jovanovic |
Constant frequency zero-voltage-switching multi-resonant converter
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Wide bandwidth frequency doubler
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Packet data communication network
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1989-08-04 |
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General Electric Company |
Radio frequency receiver for a NMR instrument
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Adjustable output level signal transmitter
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Raytheon Company |
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At&T Bell Laboratories |
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1989-11-02 |
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1989-11-20 |
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Unisys Corporation |
Doppler frequency compensation circuit
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JPH03160803A
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バランスドミキサー回路
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Second order active filters
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1989-12-20 |
1991-06-04 |
General Electric Company |
Reaction wheel fricton compensation using dither
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1989-12-20 |
1991-06-11 |
Westinghouse Electric Corp. |
Voltage-controlled oscillator with rapid tuning loop and method for tuning same
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1989-12-27 |
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Digital parallel correlator
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Radio receiver for direct sequence spread spectrum signals
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JPH063861B2
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1990-03-13 |
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Method and apparatus for increasing the high frequency sensitivity response of a sampler frequency converter
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1990-03-23 |
1993-01-12 |
Rockwell International Corporation |
Selectivity system for a direct conversion receiver
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1990-03-23 |
1992-03-10 |
Rockwell International Corporation |
Automatic gain control system for a direct conversion receiver
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1990-03-23 |
1992-03-10 |
Rockwell International Corporation |
Direct conversion receiver with tri-phase architecture
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JPH02276351A
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1990-03-26 |
1990-11-13 |
Seiko Epson Corp |
Fsk復調回路
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JPH043540A
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1990-04-19 |
1992-01-08 |
Yamaha Corp |
スペクトラム拡散通信装置
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GB9010637D0
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1990-05-11 |
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Secr Defence |
A high frequency multichannel diversity differential phase shift(dpsk)communications system
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1990-05-18 |
1991-07-16 |
Northern Telecom Limited |
Frequency converter for a radio communications system
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1990-06-01 |
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Digital data and analog radio frequency transmitter
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1990-06-01 |
1991-09-10 |
Gary Rogalski |
Wireless audio and video signal transmitter and receiver system apparatus
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JP2927896B2
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1990-06-28 |
1999-07-28 |
日本電気株式会社 |
スペクトラム抑制回路
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JP2679889B2
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1990-07-19 |
1997-11-19 |
株式会社テック |
無線通信装置及びその装置の受信制御方式
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JP2817373B2
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1990-07-30 |
1998-10-30 |
松下電器産業株式会社 |
ダイレクトコンバージョン受信機
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GB9017418D0
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1990-08-08 |
1990-09-19 |
Gen Electric Co Plc |
Half frequency mixer
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1990-08-27 |
1998-06-23 |
Axonn Corporation |
Binary phase shift keying modulation system and/or frequency multiplier
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1990-08-31 |
1993-05-25 |
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Multiple audio channel broadcast system
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JPH04123614A
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1990-09-14 |
1992-04-23 |
Nec Corp |
レベル変換回路
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JPH04127601A
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1990-09-18 |
1992-04-28 |
Victor Co Of Japan Ltd |
周波数変換回路
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1990-10-16 |
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Demodulation method and apparatus incorporating charge coupled devices
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고주파 전력 증폭기의 출력레벨 제어회로
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KR920010383B1
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방송신호 직접 수신회로
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1990-10-25 |
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Adaptive information signal receiver
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JP2801389B2
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1990-11-02 |
1998-09-21 |
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信号処理装置
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JPH04177946A
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1990-11-09 |
1992-06-25 |
Sony Corp |
デジタル復調装置
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Ontvanger.
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Method and apparatus for compensation of imbalance in zero-if downconverters
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1990-11-23 |
1992-05-29 |
Alcatel Telspace |
Melangeur hyperfrequence symetrique.
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1990-11-30 |
1992-01-21 |
Grumman Aerospace Corporation |
Modified cascode mixer circuit
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1990-12-05 |
1992-08-04 |
At&T Bell Laboratories |
Transmitter including an fsk modulator having a switched capacitor
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Tunable bandpass filter system and filtering method
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Demodulation process for binary data
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JP2800500B2
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バースト送信出力制御回路
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1991-01-15 |
1993-06-15 |
Pactel Corporation |
Frequency signal generator apparatus and method for simulating interference in mobile communication systems
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JP2850160B2
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松下電器産業株式会社 |
時分割複信無線送受信装置
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1991-02-04 |
1993-05-18 |
Motorola, Inc. |
Zero intermediate frequency noise blanker
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1991-02-25 |
1993-09-28 |
Rockwell International Corporation |
Phase and gain error control system for use in an i/q direct conversion receiver
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JP2749456B2
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1991-03-06 |
1998-05-13 |
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無線通信機
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1991-03-25 |
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Motorola, Inc. |
Bandpass filter demodulation for FM-CW systems
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1991-04-01 |
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Generating transmit injection from receiver first and second injections
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1991-04-11 |
1994-05-24 |
Usa Digital Radio |
Method and apparatus for digital audio broadcasting and reception
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1991-04-11 |
1994-01-11 |
Usa Digital Radio |
Method and apparatus for digital audio broadcasting and reception
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1991-04-19 |
1992-07-14 |
General Instrument Corporation |
Apparatus and method for recovery of multiphase modulated data
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1991-04-29 |
1993-08-24 |
Echelon Corporation |
Transceiver with rapid mode switching capability
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GB9109617D0
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1991-05-03 |
1991-06-26 |
Texas Instruments Ltd |
Method and apparatus for signal processing
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1993-08-24 |
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Wireless intercom having a transceiver in which a bias current for the condenser microphone and the driving current for the speaker are used to charge a battery during transmission and reception, respectively
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1991-05-10 |
1994-10-11 |
Echelon Corporation |
Reconstruction of signals using redundant channels
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1991-05-10 |
1992-11-26 |
Echelon Corporation |
Power line communication while avoiding determinable interference harmonics
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1998-08-04 |
Omnipoint Corporation |
Multi-band, multi-mode spread-spectrum communication system
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1991-06-21 |
1994-08-09 |
Harris Corporation |
Phase noise measurements utilizing a frequency down conversion/multiplier, direct spectrum measurement technique
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1991-06-27 |
1993-11-09 |
Hewlett-Packard Company |
Protocol analyzer pod for the ISDN U-interface
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JPH05102899A
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1991-08-16 |
1993-04-23 |
Shiyoudenriyoku Kosoku Tsushin Kenkyusho:Kk |
多周波通信方式
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1991-08-22 |
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Integrating phase detector
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1991-08-26 |
1992-09-29 |
Westinghouse Electric Corp. |
Direct digital FM waveform generator for radar systems
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FR2681994B1
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1991-09-26 |
1994-09-30 |
Alcatel Telspace |
Dispositif de transmission numerique comportant un recepteur a demodulation coherente realisee directement en hyperfrequence.
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1991-09-30 |
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Hamming data correlator having selectable word-length
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1991-10-17 |
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Adaptive notch filter for FM interference cancellation
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FR2682841B1
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1991-10-21 |
1993-11-19 |
Alcatel Telspace |
Procede de detection de faux accrochages d'un signal de reference sur un signal initialement module en modulation numerique plurivalente decalee, procede de demodulation numerique coherente l'utilisant.
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1991-10-28 |
1993-06-22 |
Ford Motor Company |
Digital quadrature radio receiver with two-step processing
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JP2897795B2
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1991-10-31 |
1999-05-31 |
日本電気株式会社 |
サンプルホールド型位相比較回路
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Frequency controlled recursive oscillator having sinusoidal output
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Honeywell Inc. |
Resonant loop resistive FET mixer
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IT1252132B
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1991-11-27 |
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Sits Soc It Telecom Siemens |
Moltiplicatore di frequenza a radiofrequenza comprendente un circuito di controllo automatico di livello
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DE4241882A1
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1991-12-13 |
1993-06-17 |
Clarion Co Ltd |
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JPH05168041A
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1991-12-16 |
1993-07-02 |
Sony Corp |
映像信号記録装置
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JPH05175734A
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1991-12-25 |
1993-07-13 |
Matsushita Electric Ind Co Ltd |
Fm復調器
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JPH05175730A
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1991-12-25 |
1993-07-13 |
Fujitsu Ten Ltd |
時分割式ダイレクト受信機
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JPH05183456A
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1991-12-27 |
1993-07-23 |
Nec Corp |
制御信号発生装置
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1992-01-17 |
1992-12-15 |
Burr-Brown Corporation |
Bootstrapped FET sampling switch
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JP2842725B2
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1992-02-17 |
1999-01-06 |
日本電気株式会社 |
ディジタル・アナログ変換器
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JPH05259745A
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1992-03-11 |
1993-10-08 |
Sumitomo Electric Ind Ltd |
ミキサ回路
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1994-01-25 |
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Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum
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1992-04-03 |
1993-06-22 |
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Single sideband radio signal processing system
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1992-04-30 |
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The United States Of America As Represented By The Secretary Of The Navy |
System for (N•M)-bit correlation using N M-bit correlators
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System for simultaneous analog and digital communications over an analog channel
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JPH05315608A
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半導体装置
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1992-05-14 |
1994-06-28 |
Hitachi America, Ltd. |
Narrowband interference cancellation through the use of digital recursive notch filters
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1992-05-14 |
1995-03-21 |
Hitachi America, Ltd. |
Method and apparatus for NTSC signal interference cancellation using recursive digital notch filters
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1992-05-14 |
1994-01-25 |
Hitachi America, Ltd. |
Apparatus for NTSC signal interference cancellation through the use of digital recursive notch filters
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JPH05327356A
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1992-05-22 |
1993-12-10 |
Sanyo Electric Co Ltd |
周波数変換装置
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KR950701472A
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1992-06-08 |
1995-03-23 |
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자동 이득 제어 회로 및 수신기(Receiver automatic gain control)
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JP3166321B2
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1992-07-01 |
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日本電気株式会社 |
変調信号送信システム
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Non-volatile semiconductor memory
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1992-07-13 |
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Information signal processing apparatus
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1992-08-06 |
1995-11-07 |
National Semiconductor Corporation |
Even order term mixer
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JPH0658705A
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1992-08-12 |
1994-03-04 |
Mishima Kosan Co Ltd |
金属物体の距離検出装置
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1992-08-14 |
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Harris Corporation |
Digital down converter and method
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1992-08-25 |
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A direct conversion receiver for multiple protocols
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FR2695211B1
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1992-08-26 |
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Dispositif et procédé d'analyse de signaux ILS.
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1992-08-27 |
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Motorola Inc. |
Push pull buffer with noise cancelling symmetry
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1992-09-08 |
1995-11-28 |
The Regents Of The University Of California |
High speed transient sampler
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JPH0690225A
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1992-09-09 |
1994-03-29 |
Shodenryoku Kosoku Tsushin Kenkyusho:Kk |
ダイバーシティ無線受信機
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1992-09-17 |
1994-08-16 |
Delco Electronics Corporation |
Interface circuit for interfacing a peripheral device with a microprocessor operating in either a synchronous or an asynchronous mode
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FR2696598B1
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Sgs Thomson Microelectronics |
Circuit élévateur de tension de type pompe de charge avec oscillateur bootstrapé.
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Highly integrated portable electronic work slate unit
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Hughes Aircraft Company |
Multi-processor demodulator for digital cellular base station employing partitioned demodulation procedure with pipelined execution
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JPH06130821A
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1992-10-19 |
1994-05-13 |
Fuji Photo Film Co Ltd |
湿式電子写真現像装置
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1992-10-22 |
1995-06-27 |
Digital Equipment Corporation |
Switch circuit for setting and signaling a voltage level
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1992-10-30 |
1996-12-31 |
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Equipment for generating a transmit signal from first and second digital signals
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1992-11-02 |
1995-02-14 |
Harris Corporation |
Least-mean squares adaptive digital filter havings variable size loop bandwidth
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DE4237692C1
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1992-11-07 |
1994-03-03 |
Grundig Emv |
Empfänger für ein digitales Rundfunksignal
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JP3111425B2
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株式会社鷹山 |
フィルタ回路
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코닌클리케 필립스 일렉트로닉스 엔.브이. |
직접변환수신기
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TW225067B
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1992-11-26 |
1994-06-11 |
Philips Electronics Nv |
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1992-12-03 |
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Motorola, Inc. |
High speed sample and hold circuit and radio constructed therewith
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DE69427311T2
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1993-01-08 |
2001-11-22 |
Sony Corp |
Vorspannungsstabilisierungsschaltung
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JP3025384B2
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1993-01-13 |
2000-03-27 |
シャープ株式会社 |
デジタルfm復調装置
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1993-01-27 |
1997-08-26 |
Gte Laboratories Incorporated |
Frequency hopping synthesizer using dual gate amplifiers
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JPH06237276A
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1993-02-12 |
1994-08-23 |
Fujitsu Ltd |
直交変調器
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BR9405728A
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1993-02-17 |
1995-11-28 |
Motorola Inc |
Sistema de comunicação e unidade de comunicação
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JP3400003B2
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1993-02-18 |
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複素変復調方式
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1997-09-17 |
Texas Instruments Ltd |
A digital oscillator
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Integratable DC blocking circuit
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1993-03-04 |
2001-03-21 |
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模块无线电通信系统
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1993-03-17 |
1995-05-24 |
Europ Agence Spatiale |
Récepteur de signaux radiofréquences.
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1993-03-31 |
1998-07-07 |
British Telecommunications Plc |
Generation of optical signals with RF components
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Double sampled biquad switched capacitor filter
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1993-04-12 |
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