DE69622974D1 - Digitale Schaltung für Differentialempfänger eines Direktsequenzspreizspektrumsignals - Google Patents
Digitale Schaltung für Differentialempfänger eines DirektsequenzspreizspektrumsignalsInfo
- Publication number
- DE69622974D1 DE69622974D1 DE69622974T DE69622974T DE69622974D1 DE 69622974 D1 DE69622974 D1 DE 69622974D1 DE 69622974 T DE69622974 T DE 69622974T DE 69622974 T DE69622974 T DE 69622974T DE 69622974 D1 DE69622974 D1 DE 69622974D1
- Authority
- DE
- Germany
- Prior art keywords
- spread spectrum
- digital circuit
- spectrum signal
- direct sequence
- sequence spread
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000001228 spectrum Methods 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/709—Correlator structure
- H04B1/7093—Matched filter type
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9514322A FR2742014B1 (fr) | 1995-12-04 | 1995-12-04 | Circuit numerique pour recepteur differentiel de signaux a etalement de spectre par sequence directe |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69622974D1 true DE69622974D1 (de) | 2002-09-19 |
DE69622974T2 DE69622974T2 (de) | 2003-04-30 |
Family
ID=9485132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69622974T Expired - Lifetime DE69622974T2 (de) | 1995-12-04 | 1996-12-02 | Digitale Schaltung für Differentialempfänger eines Direktsequenzspreizspektrumsignals |
Country Status (5)
Country | Link |
---|---|
US (1) | US5799035A (de) |
EP (1) | EP0778677B1 (de) |
CA (1) | CA2191551A1 (de) |
DE (1) | DE69622974T2 (de) |
FR (1) | FR2742014B1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2770059B1 (fr) | 1997-10-22 | 1999-11-19 | Commissariat Energie Atomique | Circuit pour transmissions numeriques a etalement de spectre par sequence directe avec generation d'un signal d'interferences |
FR2770060B1 (fr) * | 1997-10-22 | 1999-11-19 | Commissariat Energie Atomique | Recepteur differentiel a etalement de spectre par sequence directe avec moyens mixtes de formation d'un signal d'interferences |
EP1012902B1 (de) * | 1998-07-20 | 2004-11-24 | Samsung Electronics Co., Ltd. | Vorrichtung zur erzeugung von quasi orthogonaler kodemaske in einem mobilen kommunikationssystem |
FR2782587B1 (fr) * | 1998-08-20 | 2000-09-22 | France Telecom | Procedes de communications numeriques amrc a repartition des symboles de reference |
US6424642B1 (en) * | 1998-12-31 | 2002-07-23 | Texas Instruments Incorporated | Estimation of doppler frequency through autocorrelation of pilot symbols |
FR2791841B1 (fr) * | 1999-04-02 | 2001-05-11 | Commissariat Energie Atomique | Module recepteur et recepteur compose de plusieurs modules montes en cascade |
US6356580B1 (en) | 1999-07-06 | 2002-03-12 | The United States Of America As Represented By The Secretary Of The Air Force | Direct sequence spread spectrum using non-antipodal phase shift keying |
FR2796221B1 (fr) * | 1999-07-07 | 2002-04-12 | Sagem | Demodulateur de phase analogique-numerique |
WO2002023753A1 (en) * | 2000-09-13 | 2002-03-21 | Nortel Networks Limited | Multi-user detection in a cdma communication system |
JP4278332B2 (ja) * | 2001-06-29 | 2009-06-10 | 日本電信電話株式会社 | 光送信器および光伝送システム |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3735374A1 (de) * | 1987-10-19 | 1989-05-03 | Siemens Ag | Digitale korrelatorschaltung |
US5253268A (en) * | 1990-05-24 | 1993-10-12 | Cylink Corporation | Method and apparatus for the correlation of sample bits of spread spectrum radio signals |
US5202901A (en) * | 1991-05-21 | 1993-04-13 | General Electric Company | Digital discriminator for pulse shaped π/4 shifted differentially encoded quadrature phase shift keying |
FR2696298B1 (fr) | 1992-07-15 | 1994-10-28 | Commissariat Energie Atomique | Composant pour récepteur ou pour émetteur-récepteur différentiel de signaux à étalement de spectre par séquence directe et émetteur-récepteur correspondant. |
US5311544A (en) * | 1992-11-19 | 1994-05-10 | Samsung Electronics Co., Ltd. | Receiver of a direct sequence spread spectrum system |
FR2712129B1 (fr) | 1993-11-02 | 1995-12-01 | Commissariat Energie Atomique | Procédé de transmission à modulation de phase synchrone et à étalement de spectre par séquence directe, émetteur et récepteur correspondants et composant pour ce récepteur. |
JP2655068B2 (ja) * | 1993-12-30 | 1997-09-17 | 日本電気株式会社 | スペクトラム拡散受信機 |
JPH07283762A (ja) * | 1994-04-05 | 1995-10-27 | Fujitsu General Ltd | スペクトラム拡散通信装置 |
-
1995
- 1995-12-04 FR FR9514322A patent/FR2742014B1/fr not_active Expired - Lifetime
-
1996
- 1996-11-12 US US08/747,262 patent/US5799035A/en not_active Expired - Fee Related
- 1996-11-28 CA CA002191551A patent/CA2191551A1/en not_active Abandoned
- 1996-12-02 EP EP96402608A patent/EP0778677B1/de not_active Expired - Lifetime
- 1996-12-02 DE DE69622974T patent/DE69622974T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5799035A (en) | 1998-08-25 |
EP0778677B1 (de) | 2002-08-14 |
DE69622974T2 (de) | 2003-04-30 |
CA2191551A1 (en) | 1997-06-05 |
FR2742014A1 (fr) | 1997-06-06 |
FR2742014B1 (fr) | 1998-01-09 |
EP0778677A1 (de) | 1997-06-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |