WO2007041140A3 - Nicam processor - Google Patents

Nicam processor Download PDF

Info

Publication number
WO2007041140A3
WO2007041140A3 PCT/US2006/037626 US2006037626W WO2007041140A3 WO 2007041140 A3 WO2007041140 A3 WO 2007041140A3 US 2006037626 W US2006037626 W US 2006037626W WO 2007041140 A3 WO2007041140 A3 WO 2007041140A3
Authority
WO
WIPO (PCT)
Prior art keywords
data
memory
nicam
channel
format
Prior art date
Application number
PCT/US2006/037626
Other languages
French (fr)
Other versions
WO2007041140A2 (en
Inventor
Luciano Zoso
Allan P Chin
David P Lester
Original Assignee
Freescale Semiconductor Inc
Luciano Zoso
Allan P Chin
David P Lester
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/240,314 external-priority patent/US7653448B2/en
Priority claimed from US11/240,315 external-priority patent/US20070076121A1/en
Application filed by Freescale Semiconductor Inc, Luciano Zoso, Allan P Chin, David P Lester filed Critical Freescale Semiconductor Inc
Priority to KR1020087007378A priority Critical patent/KR101299420B1/en
Priority to JP2008533558A priority patent/JP5140594B2/en
Publication of WO2007041140A2 publication Critical patent/WO2007041140A2/en
Publication of WO2007041140A3 publication Critical patent/WO2007041140A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/06—Systems for the simultaneous transmission of one television signal, i.e. both picture and sound, by more than one carrier
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders

Abstract

A NICAM processor (82) comprises a first memory (100) for temporarily storing a current frame of A-channel and B-channel input data, wherein the current frame data is stored into the first memory at a first clock rate. A second memory (106, 108) temporarily stores companded A-channel and B-channel data of a previous frame in a format other than an interleaved format according to NICAM standard requirements. An interleaving circuit (105) reads the previous frame companded data from the second memory at a second clock rate and in a manner for interleaving the previous frame data into the NICAM standard required interleaved format. A bit stream generator (114) generates a first portion of an output bit stream, multiplexes it with a payload portion, and outputs the output bit stream, wherein the first portion comprises a frame alignment word, control information and additional data, and the payload portion comprises the interleaved data of the previous frame. A companding and storing circuit (104) compands the input data of the current frame and stores the companded data into the second memory at a third clock rate and in the format other than the NICAM interleaved format. The companding and storing circuit is operative during an interval within the current frame, subsequent to the storing into the first memory and the reading from the second memory.
PCT/US2006/037626 2005-09-30 2006-09-25 Nicam processor WO2007041140A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020087007378A KR101299420B1 (en) 2005-09-30 2006-09-25 Nicam processor
JP2008533558A JP5140594B2 (en) 2005-09-30 2006-09-25 NICAM processing method

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/240,314 US7653448B2 (en) 2005-09-30 2005-09-30 NICAM processing method
US11/240,315 US20070076121A1 (en) 2005-09-30 2005-09-30 NICAM processor
US11/240,315 2005-09-30
US11/240,314 2005-09-30

Publications (2)

Publication Number Publication Date
WO2007041140A2 WO2007041140A2 (en) 2007-04-12
WO2007041140A3 true WO2007041140A3 (en) 2008-10-09

Family

ID=37906683

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/037626 WO2007041140A2 (en) 2005-09-30 2006-09-25 Nicam processor

Country Status (3)

Country Link
JP (1) JP5140594B2 (en)
KR (1) KR101299420B1 (en)
WO (1) WO2007041140A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125255A (en) * 1982-07-28 1984-02-29 British Broadcasting Corp Digital data coding
US4811394A (en) * 1982-07-28 1989-03-07 Communications Satellite Corporation Variable starting state scrambling circuit
US5243650A (en) * 1990-03-23 1993-09-07 Televerket Method and apparatus for encryption/decryption of digital multisound in television
US6150837A (en) * 1997-02-28 2000-11-21 Actel Corporation Enhanced field programmable gate array
US20020184546A1 (en) * 2001-04-18 2002-12-05 Sherburne, Jr Robert Warren Method and device for modifying the memory contents of and reprogramming a memory
US6825690B1 (en) * 2003-05-28 2004-11-30 Actel Corporation Clock tree network in a field programmable gate array

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10322623A (en) * 1997-05-21 1998-12-04 Toshiba Corp Television receiver
JP2005039639A (en) * 2003-07-17 2005-02-10 Sony Corp Television broadcasting system and method, transmitter and method, and receiver and method
US7109906B1 (en) * 2005-04-29 2006-09-19 Freescale Semiconductor, Inc. NICAM encoder featuring synchronization of a NICAM processor with front-end input and output sections

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125255A (en) * 1982-07-28 1984-02-29 British Broadcasting Corp Digital data coding
US4811394A (en) * 1982-07-28 1989-03-07 Communications Satellite Corporation Variable starting state scrambling circuit
US5243650A (en) * 1990-03-23 1993-09-07 Televerket Method and apparatus for encryption/decryption of digital multisound in television
US6150837A (en) * 1997-02-28 2000-11-21 Actel Corporation Enhanced field programmable gate array
US20020184546A1 (en) * 2001-04-18 2002-12-05 Sherburne, Jr Robert Warren Method and device for modifying the memory contents of and reprogramming a memory
US6825690B1 (en) * 2003-05-28 2004-11-30 Actel Corporation Clock tree network in a field programmable gate array

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
European Telecommunications Standards Institute, Television Systems; NICAM 728: transmission of two-channel digital sound with terrestrial television systems B, G, H, I, K1 and L, March 3, 1998 V1.2.1, pp.1-24 *

Also Published As

Publication number Publication date
JP2009512884A (en) 2009-03-26
KR20080064811A (en) 2008-07-09
JP5140594B2 (en) 2013-02-06
KR101299420B1 (en) 2013-08-29
WO2007041140A2 (en) 2007-04-12

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