ES536449A0 - Procedimiento de desmodulacion coherente de ondas portadoras y similares y sistema correspondiente - Google Patents
Procedimiento de desmodulacion coherente de ondas portadoras y similares y sistema correspondienteInfo
- Publication number
- ES536449A0 ES536449A0 ES536449A ES536449A ES536449A0 ES 536449 A0 ES536449 A0 ES 536449A0 ES 536449 A ES536449 A ES 536449A ES 536449 A ES536449 A ES 536449A ES 536449 A0 ES536449 A0 ES 536449A0
- Authority
- ES
- Spain
- Prior art keywords
- carrier
- corresponding system
- coherent demodulation
- demodulation procedure
- similar waves
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/084—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the horizontal blanking interval only
- H04N7/085—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the horizontal blanking interval only the inserted signal being digital
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
- H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
- H04L27/2276—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using frequency multiplication or harmonic tracking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/04—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier
- H04N7/045—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier the carrier being frequency modulated
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8315019A FR2552282B1 (fr) | 1983-09-21 | 1983-09-21 | Procede et dispositif de demodulation coherente de porteuse a modulation numerique |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8606964A1 ES8606964A1 (es) | 1986-05-16 |
ES536449A0 true ES536449A0 (es) | 1986-05-16 |
Family
ID=9292411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES536449A Expired ES8606964A1 (es) | 1983-09-21 | 1984-09-21 | Procedimiento de desmodulacion coherente de ondas portadoras y similares y sistema correspondiente |
Country Status (9)
Country | Link |
---|---|
US (1) | US4585998A (es) |
EP (1) | EP0140753B1 (es) |
CA (1) | CA1227546A (es) |
DE (1) | DE3469663D1 (es) |
DK (1) | DK448884A (es) |
ES (1) | ES8606964A1 (es) |
FR (1) | FR2552282B1 (es) |
NO (1) | NO164949C (es) |
PT (1) | PT79252B (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6211347A (ja) * | 1985-07-09 | 1987-01-20 | Nec Home Electronics Ltd | 4相psk復調装置 |
US4821097A (en) * | 1987-03-05 | 1989-04-11 | General Instrument Corporation | Apparatus and method for providing digital audio on the sound carrier of a standard television signal |
US4906875A (en) * | 1988-05-09 | 1990-03-06 | Hewlett-Packard Company | Digital integtrating mixer |
US4987386A (en) * | 1989-10-03 | 1991-01-22 | Communications Satellite Corporation | Coherent phase and frequency recovery method and circuit |
JP3060521B2 (ja) * | 1990-10-25 | 2000-07-10 | 日本電気株式会社 | 復調回路 |
WO1998057470A1 (fr) * | 1997-06-13 | 1998-12-17 | Kabushiki Kaisha Kenwood | Circuit de regeneration du signal d'horloge |
US5852636A (en) * | 1997-08-08 | 1998-12-22 | Serge Mathieu | Method of and apparatus for modulation of FSK carrier in a very narrow band |
JP3930180B2 (ja) * | 1999-01-21 | 2007-06-13 | 富士通株式会社 | デジタル信号復調回路及び方法 |
FR2824205B1 (fr) * | 2001-04-27 | 2004-11-05 | Thomson Csf | Procede de multiplication de frequence dans un equipement de radiocommunication |
US7929649B2 (en) * | 2004-06-30 | 2011-04-19 | Stmicroelectronics, Inc. | Analog/digital carrier differentiation in digital cable receivers |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3525945A (en) * | 1968-08-14 | 1970-08-25 | Communications Satellite Corp | System for reconstituting a carrier reference signal using a switchable phase lock loop |
NL7016628A (es) * | 1970-11-13 | 1972-05-16 | ||
JPS53136949A (en) * | 1977-05-06 | 1978-11-29 | Mitsubishi Electric Corp | N-phase psk carrier reproducing circuit |
CA1115789A (en) * | 1977-05-12 | 1982-01-05 | Richard P. Scott | Phase shift keyed systems |
JPS55132164A (en) * | 1979-03-30 | 1980-10-14 | Nec Corp | Carrier regenerating circuit for psk demodulator |
FR2459594A1 (fr) * | 1979-06-15 | 1981-01-09 | Telediffusion Fse | Systeme de television a multiplexage de signaux d'image et/ou de donnees et de signaux numeriques de son |
-
1983
- 1983-09-21 FR FR8315019A patent/FR2552282B1/fr not_active Expired - Lifetime
-
1984
- 1984-09-18 US US06/651,843 patent/US4585998A/en not_active Expired - Fee Related
- 1984-09-20 CA CA000463690A patent/CA1227546A/en not_active Expired
- 1984-09-20 DK DK448884A patent/DK448884A/da not_active Application Discontinuation
- 1984-09-20 NO NO843760A patent/NO164949C/no unknown
- 1984-09-21 ES ES536449A patent/ES8606964A1/es not_active Expired
- 1984-09-21 DE DE8484401886T patent/DE3469663D1/de not_active Expired
- 1984-09-21 PT PT79252A patent/PT79252B/pt unknown
- 1984-09-21 EP EP84401886A patent/EP0140753B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
PT79252A (fr) | 1984-10-01 |
CA1227546A (en) | 1987-09-29 |
DK448884D0 (da) | 1984-09-20 |
NO164949C (no) | 1990-11-28 |
NO164949B (no) | 1990-08-20 |
ES8606964A1 (es) | 1986-05-16 |
NO843760L (no) | 1985-03-22 |
PT79252B (fr) | 1986-08-22 |
FR2552282B1 (fr) | 1990-07-13 |
US4585998A (en) | 1986-04-29 |
FR2552282A1 (fr) | 1985-03-22 |
DK448884A (da) | 1985-03-22 |
EP0140753B1 (fr) | 1988-03-02 |
DE3469663D1 (en) | 1988-04-07 |
EP0140753A1 (fr) | 1985-05-08 |
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