FR2646745B1 - Dispositif de demodulation d'un signal demodule en phase ou en frequence - Google Patents

Dispositif de demodulation d'un signal demodule en phase ou en frequence

Info

Publication number: FR2646745B1
Authority: FR; France
Prior art keywords: demodule; demodulating; frequency; phase; signal
Prior art date: 1989-05-02
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 - Fee Related

Application number

FR9005453A

Other languages

English (en)

Other versions

FR2646745A1 (fr

Inventor

Minoru Takahashi

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

RCA Licensing Corp

Original Assignee

RCA Licensing Corp

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.)

1989-05-02

Filing date

1990-04-27

Publication date

1993-07-16

1990-04-27 Application filed by RCA Licensing Corp filed Critical RCA Licensing Corp

1990-11-09 Publication of FR2646745A1 publication Critical patent/FR2646745A1/fr

1993-07-16 Application granted granted Critical

1993-07-16 Publication of FR2646745B1 publication Critical patent/FR2646745B1/fr

2010-04-27 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- 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
- H03D3/006—Demodulation of angle-, frequency- or phase- modulated oscillations by sampling the oscillations and further processing the samples, e.g. by computing techniques
- 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
- H03D2200/006—Signal sampling
- H03D2200/0062—Computation of input samples, e.g. successive samples

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Theoretical Computer Science (AREA)
Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

FR9005453A 1989-05-02 1990-04-27 Dispositif de demodulation d'un signal demodule en phase ou en frequence Expired - Fee Related FR2646745B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/346,039 US4910469A (en)	1989-05-02	1989-05-02	Demodulator for sampled data FM signals

Publications (2)

Publication Number	Publication Date
FR2646745A1 FR2646745A1 (fr)	1990-11-09
FR2646745B1 true FR2646745B1 (fr)	1993-07-16

Family

ID=23357666

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR9005453A Expired - Fee Related FR2646745B1 (fr)	1989-05-02	1990-04-27	Dispositif de demodulation d'un signal demodule en phase ou en frequence

Country Status (7)

Country	Link
US (1)	US4910469A (fr)
JP (1)	JP2764635B2 (fr)
KR (1)	KR0161273B1 (fr)
CA (1)	CA2013929A1 (fr)
DE (1)	DE4013972A1 (fr)
FR (1)	FR2646745B1 (fr)
GB (1)	GB2233194B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2748536B2 (ja) *	1989-04-25	1998-05-06	日本電気株式会社	直交信号復調装置
US5067140A (en) *	1989-08-16	1991-11-19	Titan Linkabit Corporation	Conversion of analog signal into i and q digital signals with enhanced image rejection
US5099494A (en) *	1990-07-26	1992-03-24	Unisys Corporation	Six channel digital demodulator
US5465071A (en) *	1992-07-13	1995-11-07	Canon Kabushiki Kaisha	Information signal processing apparatus
US5375146A (en) *	1993-05-06	1994-12-20	Comsat Corporation	Digital frequency conversion and tuning scheme for microwave radio receivers and transmitters
US5615411A (en) *	1994-04-22	1997-03-25	Rockwell International	Method and apparatus for composite signal separation and FM demodulation
US5430770A (en) *	1994-04-22	1995-07-04	Rockwell International Corp.	Method and apparatus for composite signal separation and PSK/AM/FM demodulation
US6026129A (en) *	1996-03-27	2000-02-15	Matsushita Electric Industrial Co., Ltd.	Radio receiving apparatus for receiving communication signals of different bandwidths
US5694079A (en) *	1996-04-04	1997-12-02	Lucent Technologies Inc.	Digital FM demodulator using a lagrangian interpolation function
US5754601A (en) *	1996-05-10	1998-05-19	Rockwell International Corporation	Jitter circuit for reduced switching noise
US6031418A (en) *	1998-11-19	2000-02-29	Lockheed Martin Corporation	Method and apparatus for demodulating digital frequency modulation (FM) signals
JP4053689B2 (ja) *	1999-06-11	2008-02-27	パイオニア株式会社	Ｆｍ復調器
US20090237070A1 (en) *	2006-02-01	2009-09-24	Paul Le Roux Herselman	Method of instantaneously determining or estimating the frequency or amplitude of an input signal

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS56140705A (en) *	1980-04-04	1981-11-04	Nippon Telegr & Teleph Corp <Ntt>	Fm demodulator
FR2488755A2 (fr) *	1980-08-13	1982-02-19	Thomson Csf	Procede de demodulation d'un signal module en frequence et demodulateurs mettant en oeuvre ce procede
DE3030853A1 (de) *	1980-08-14	1982-03-11	Siemens AG, 1000 Berlin und 8000 München	Verfahren und schaltungsanordnung zum demodulieren zeitdiskreter frequenzmodulierter signale
JPS57133362A (en) *	1981-02-10	1982-08-18	Mitsubishi Electric Corp	Frequency detector
FR2508739B1 (fr) *	1981-06-24	1986-01-03	Labo Electronique Physique	Circuit numerique de demodulation d'un signal module en frequence, application de ce circuit a la realisation d'un etage de demodulation du signal de chrominance d'un recepteur de television, et recepteur de television equipe d'un tel etage
DE3124963A1 (de) *	1981-06-25	1983-01-20	Philips Patentverwaltung Gmbh, 2000 Hamburg	Anordnung zur demodulation eines frequenzmodulierten eingangssignals
DE3137843A1 (de) *	1981-09-23	1983-03-31	Robert Bosch Gmbh, 7000 Stuttgart	Filter- und demodulationsschaltung
DE3138464A1 (de) *	1981-09-26	1983-04-14	Robert Bosch Gmbh, 7000 Stuttgart	Verfahren zur digitalen demodulation frequenzmodulierter signale
EP0109966B1 (fr) *	1982-11-26	1987-02-11	Deutsche ITT Industries GmbH	Circuit numérique de démodulation d'un signal modulé en fréquence
DE3314918A1 (de) *	1983-04-25	1984-10-25	Philips Patentverwaltung Gmbh, 2000 Hamburg	Schaltungsanordnung zum demodulieren eines frequenzmodulierten signals
US4547737A (en) *	1983-07-29	1985-10-15	Rca Corporation	Demodulator of sampled data FM signals from sets of four successive samples
US4750214A (en) *	1986-06-11	1988-06-07	Rockwell International Corporation	Digital FM demodulator using delayed signal product with arctangent

1989
- 1989-05-02 US US07/346,039 patent/US4910469A/en not_active Expired - Lifetime
1990
- 1990-04-05 CA CA002013929A patent/CA2013929A1/fr not_active Abandoned
- 1990-04-27 KR KR1019900005950A patent/KR0161273B1/ko not_active IP Right Cessation
- 1990-04-27 FR FR9005453A patent/FR2646745B1/fr not_active Expired - Fee Related
- 1990-04-30 DE DE4013972A patent/DE4013972A1/de not_active Withdrawn
- 1990-05-01 GB GB9009777A patent/GB2233194B/en not_active Expired - Fee Related
- 1990-05-01 JP JP2111905A patent/JP2764635B2/ja not_active Expired - Fee Related

Also Published As

Publication number	Publication date
FR2646745A1 (fr)	1990-11-09
KR0161273B1 (ko)	1999-03-20
KR900019338A (ko)	1990-12-24
JP2764635B2 (ja)	1998-06-11
DE4013972A1 (de)	1990-11-08
GB2233194B (en)	1993-06-09
GB2233194A (en)	1991-01-02
CA2013929A1 (fr)	1990-11-02
US4910469A (en)	1990-03-20
JPH02305151A (ja)	1990-12-18
GB9009777D0 (en)	1990-06-20

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Legal Events

Date	Code	Title	Description
1996-03-29	ST	Notification of lapse