BE896184A - Systeme et methode de demodulation numerique pour des signaux modules en frequence ou en phase - Google Patents
Systeme et methode de demodulation numerique pour des signaux modules en frequence ou en phaseInfo
- Publication number
- BE896184A BE896184A BE2/60054A BE2060054A BE896184A BE 896184 A BE896184 A BE 896184A BE 2/60054 A BE2/60054 A BE 2/60054A BE 2060054 A BE2060054 A BE 2060054A BE 896184 A BE896184 A BE 896184A
- Authority
- BE
- Belgium
- Prior art keywords
- frequency
- modulated signals
- phase modulated
- digital demodulation
- demodulation system
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/50—Analogue/digital converters with intermediate conversion to time interval
- H03M1/504—Analogue/digital converters with intermediate conversion to time interval using pulse width modulation
- H03M1/506—Analogue/digital converters with intermediate conversion to time interval using pulse width modulation the pulse width modulator being of the charge-balancing type
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/360,735 US4476435A (en) | 1982-03-22 | 1982-03-22 | Digital demodulation of frequency modulated signals |
Publications (1)
Publication Number | Publication Date |
---|---|
BE896184A true BE896184A (fr) | 1983-09-19 |
Family
ID=23419204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE2/60054A BE896184A (fr) | 1982-03-22 | 1983-03-17 | Systeme et methode de demodulation numerique pour des signaux modules en frequence ou en phase |
Country Status (6)
Country | Link |
---|---|
US (1) | US4476435A (fr) |
EP (1) | EP0089624A3 (fr) |
JP (1) | JPS58212204A (fr) |
BE (1) | BE896184A (fr) |
ES (1) | ES8402995A1 (fr) |
MX (1) | MX153535A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2618742B2 (ja) * | 1990-07-09 | 1997-06-11 | 康人 竹内 | Fm復調器 |
DE4104882A1 (de) * | 1991-02-18 | 1992-08-20 | Blaupunkt Werke Gmbh | Autoradio mit einer schaltungsanordnung zur analog/digital-wandlung eines zwischenfrequenzsignals |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2862185A (en) * | 1956-06-29 | 1958-11-25 | John O Dick | Electronic fm/fm to analog or digital converter |
US3350637A (en) * | 1964-05-07 | 1967-10-31 | Bendix Corp | Variable frequency to pulse-width converter |
US3528019A (en) * | 1966-11-04 | 1970-09-08 | Nippon Electric Co | F-m demodulation system employing a balanced limiter and a balanced amplifying circuit |
JPS5233460A (en) * | 1975-09-10 | 1977-03-14 | Sony Corp | Fm demodulator |
JPS5737904A (en) * | 1980-08-13 | 1982-03-02 | Hitachi Ltd | Quadrature wave detecting circuit |
-
1982
- 1982-03-22 US US06/360,735 patent/US4476435A/en not_active Expired - Fee Related
-
1983
- 1983-03-15 ES ES520616A patent/ES8402995A1/es not_active Expired
- 1983-03-17 BE BE2/60054A patent/BE896184A/fr not_active IP Right Cessation
- 1983-03-17 EP EP83102631A patent/EP0089624A3/fr not_active Withdrawn
- 1983-03-22 JP JP58047781A patent/JPS58212204A/ja active Pending
- 1983-03-22 MX MX196668A patent/MX153535A/es unknown
Also Published As
Publication number | Publication date |
---|---|
MX153535A (es) | 1986-11-11 |
US4476435A (en) | 1984-10-09 |
JPS58212204A (ja) | 1983-12-09 |
EP0089624A3 (fr) | 1987-01-14 |
ES520616A0 (es) | 1984-03-16 |
EP0089624A2 (fr) | 1983-09-28 |
ES8402995A1 (es) | 1984-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: INTERNATINAL STANDARD ELECTRIC CORP. Effective date: 19870331 |