CA2088187A1 - Circuit de demodulation fm - Google Patents
Circuit de demodulation fmInfo
- Publication number
- CA2088187A1 CA2088187A1 CA2088187A CA2088187A CA2088187A1 CA 2088187 A1 CA2088187 A1 CA 2088187A1 CA 2088187 A CA2088187 A CA 2088187A CA 2088187 A CA2088187 A CA 2088187A CA 2088187 A1 CA2088187 A1 CA 2088187A1
- Authority
- CA
- Canada
- Prior art keywords
- additional voltage
- comparison signal
- signal
- demodulation circuit
- phase comparator
- 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
- 230000010355 oscillation Effects 0.000 abstract 3
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
- H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0041—Functional aspects of demodulators
- H03D2200/0047—Offset of DC voltage or frequency
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0041—Functional aspects of demodulators
- H03D2200/005—Analog to digital conversion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0041—Functional aspects of demodulators
- H03D2200/0052—Digital to analog conversion
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Television Signal Processing For Recording (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP34009/1992 | 1992-01-27 | ||
JP4034009A JP2953854B2 (ja) | 1992-01-27 | 1992-01-27 | Fm復調回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2088187A1 true CA2088187A1 (fr) | 1993-07-28 |
CA2088187C CA2088187C (fr) | 1997-08-19 |
Family
ID=12402428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002088187A Expired - Fee Related CA2088187C (fr) | 1992-01-27 | 1993-01-27 | Circuit de demodulation fm |
Country Status (8)
Country | Link |
---|---|
US (1) | US5408195A (fr) |
EP (1) | EP0555001B1 (fr) |
JP (1) | JP2953854B2 (fr) |
KR (1) | KR970002886B1 (fr) |
AU (1) | AU661091B2 (fr) |
CA (1) | CA2088187C (fr) |
ES (1) | ES2116403T3 (fr) |
SG (1) | SG48990A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6680654B2 (en) * | 2001-10-24 | 2004-01-20 | Northrop Grumman Corporation | Phase locked loop with offset cancellation |
GB2389252B (en) * | 2002-05-31 | 2006-09-27 | Zarlink Semiconductor Ltd | A frequency modulation system & method |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1444235A (fr) * | 1965-05-21 | 1966-07-01 | Thomson Houston Comp Francaise | Perfectionnements aux récepteurs radioélectriques à commande automatique de phase |
US3495184A (en) * | 1968-03-11 | 1970-02-10 | Radiation Inc | Phase-locked loop having improved acquisition range |
US4107624A (en) * | 1977-07-18 | 1978-08-15 | Sperry Rand Corporation | Automatic frequency-tracking circuit |
FR2538656B1 (fr) * | 1982-12-23 | 1985-06-07 | Thomson Csf | Procede et circuit d'asservissement en frequence et en phase d'un oscillateur local en television |
US4568888A (en) * | 1983-11-08 | 1986-02-04 | Trw Inc. | PLL Fast frequency synthesizer with memories for coarse tuning and loop gain correction |
US4703520A (en) * | 1986-10-31 | 1987-10-27 | Motorola, Inc. | Radio transceiver having an adaptive reference oscillator |
JPS6381430U (fr) * | 1986-11-13 | 1988-05-28 | ||
JPS63151881A (ja) * | 1986-12-16 | 1988-06-24 | Furuno Electric Co Ltd | 位相復調器 |
DE3731567A1 (de) * | 1987-09-19 | 1989-04-06 | Thomson Brandt Gmbh | Frequenzdemodulator in pll-technik |
US4980652A (en) * | 1988-09-02 | 1990-12-25 | Nippon Telegraph And Telephone Corporation | Frequency synthesizer having compensation for nonlinearities |
JPH03157018A (ja) * | 1989-08-10 | 1991-07-05 | Mitsubishi Electric Corp | 周波数シンセサイザ |
JP2947573B2 (ja) * | 1989-10-18 | 1999-09-13 | 株式会社東芝 | 復調装置 |
US5168246A (en) * | 1991-10-24 | 1992-12-01 | Zenith Electronics Corporation | Error amplifier for multiple frequency oscillator control |
-
1992
- 1992-01-27 JP JP4034009A patent/JP2953854B2/ja not_active Expired - Fee Related
-
1993
- 1993-01-27 AU AU32074/93A patent/AU661091B2/en not_active Ceased
- 1993-01-27 SG SG1996004949A patent/SG48990A1/en unknown
- 1993-01-27 EP EP93300579A patent/EP0555001B1/fr not_active Expired - Lifetime
- 1993-01-27 US US08/010,001 patent/US5408195A/en not_active Expired - Fee Related
- 1993-01-27 ES ES93300579T patent/ES2116403T3/es not_active Expired - Lifetime
- 1993-01-27 KR KR1019930000980A patent/KR970002886B1/ko not_active IP Right Cessation
- 1993-01-27 CA CA002088187A patent/CA2088187C/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2953854B2 (ja) | 1999-09-27 |
JPH05206736A (ja) | 1993-08-13 |
US5408195A (en) | 1995-04-18 |
KR970002886B1 (ko) | 1997-03-12 |
EP0555001A1 (fr) | 1993-08-11 |
CA2088187C (fr) | 1997-08-19 |
AU3207493A (en) | 1993-07-29 |
SG48990A1 (en) | 1998-05-18 |
ES2116403T3 (es) | 1998-07-16 |
EP0555001B1 (fr) | 1998-06-03 |
KR930017333A (ko) | 1993-08-30 |
AU661091B2 (en) | 1995-07-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0691746A4 (fr) | ||
CA2019778A1 (fr) | Circuit de charge par pompage | |
KR880002321A (ko) | 필터회로의 시정수 자동조정회로 | |
EP0220932A3 (fr) | Boucle d'asservissement sélective en fréquence et à phases multiples avec des sorties sinusoidales multiphases et numériques | |
JPS5657324A (en) | Digital electronic tuning system | |
WO1999030424A3 (fr) | Emetteur comprenant un oscillateur commande en tension | |
GB9125616D0 (en) | Bias stabilizing circuit | |
EP0378190A3 (fr) | Boucle d'asservissement de phase numérique | |
EP0221437A3 (fr) | Circuit de correction du vacillement | |
AUPM587094A0 (en) | Microwave loop oscillators | |
CA2096664A1 (fr) | Circuit de modulation en quadrature | |
CA2088187A1 (fr) | Circuit de demodulation fm | |
JPS5575359A (en) | Phase control unit | |
CA2021335A1 (fr) | Modulateur de frequence | |
JPS56158536A (en) | Pil oscillation circuit | |
CA2314877A1 (fr) | Circuit de reproduction de porteuses | |
JPS6449176A (en) | Pll circuit | |
JPS57143936A (en) | Frequency synthesizer | |
EP0299675A3 (fr) | Circuits boucles d'asservissement de phase | |
JPH0669174B2 (ja) | Amステレオ信号デコーダ | |
JPH0328606Y2 (fr) | ||
JPS57171808A (en) | Fm demodulating circuit | |
JPS5684005A (en) | Fm demodulator | |
JPS56122977A (en) | Light wave range finder | |
JPH0339962Y2 (fr) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |