DE69421490T2 - Demodulation eines frequenzmodulierten Tonträgers - Google Patents

Demodulation eines frequenzmodulierten Tonträgers

Info

Publication number
DE69421490T2
DE69421490T2 DE69421490T DE69421490T DE69421490T2 DE 69421490 T2 DE69421490 T2 DE 69421490T2 DE 69421490 T DE69421490 T DE 69421490T DE 69421490 T DE69421490 T DE 69421490T DE 69421490 T2 DE69421490 T2 DE 69421490T2
Authority
DE
Germany
Prior art keywords
demodulation
frequency
sound carrier
modulated sound
modulated
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 - Fee Related
Application number
DE69421490T
Other languages
English (en)
Other versions
DE69421490D1 (de
Inventor
Wayne Leslie Horsfall
Gary Shipton
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.)
STMicroelectronics Ltd Great Britain
Original Assignee
STMicroelectronics Ltd Great Britain
SGS Thomson Microelectronics Ltd
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.)
Filing date
Publication date
Application filed by STMicroelectronics Ltd Great Britain, SGS Thomson Microelectronics Ltd filed Critical STMicroelectronics Ltd Great Britain
Publication of DE69421490D1 publication Critical patent/DE69421490D1/de
Application granted granted Critical
Publication of DE69421490T2 publication Critical patent/DE69421490T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • 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
    • H03D3/244—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 combined with means for obtaining automatic gain control
DE69421490T 1993-09-29 1994-08-19 Demodulation eines frequenzmodulierten Tonträgers Expired - Fee Related DE69421490T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB939320067A GB9320067D0 (en) 1993-09-29 1993-09-29 Demodulation of fm audio carrier

Publications (2)

Publication Number Publication Date
DE69421490D1 DE69421490D1 (de) 1999-12-09
DE69421490T2 true DE69421490T2 (de) 2000-02-10

Family

ID=10742698

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69421490T Expired - Fee Related DE69421490T2 (de) 1993-09-29 1994-08-19 Demodulation eines frequenzmodulierten Tonträgers

Country Status (5)

Country Link
US (2) US5631601A (de)
EP (1) EP0645881B1 (de)
JP (1) JP2729028B2 (de)
DE (1) DE69421490T2 (de)
GB (1) GB9320067D0 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9320069D0 (en) * 1993-09-29 1993-11-17 Sgs Thomson Microelectronics Frequency tuning for a phase locked loop
GB9320067D0 (en) * 1993-09-29 1993-11-17 Sgs Thomson Microelectronics Demodulation of fm audio carrier
JPH08293735A (ja) * 1995-04-20 1996-11-05 Matsushita Electric Ind Co Ltd 高周波装置
FR2737626B1 (fr) * 1995-07-31 1997-09-05 Sgs Thomson Microelectronics Dispositif et procede pour regler la frequence d'accord d'un demodulateur pll
US6510309B1 (en) * 1996-11-20 2003-01-21 Conexant Systems, Inc. Intermediate frequency amplifier circuit for use in receive and transmit modes
DE19708059A1 (de) * 1997-02-28 1998-09-03 Philips Patentverwaltung Ton-FM-Demodulator für Ton-TV-Signale und Verfahren zur Tonträgererkennung
US5945854A (en) * 1998-02-10 1999-08-31 Ericsson Inc. Phase locked loops including input amplitude control
US6694026B1 (en) * 1999-03-10 2004-02-17 Cirrus Logic, Inc. Digital stereo recovery circuitry and method for radio receivers
US6826246B1 (en) * 1999-10-15 2004-11-30 Agere Systems, Inc. Phase locked loop with control voltage centering
US6526359B1 (en) * 1999-12-10 2003-02-25 Growth Financial Ag Apparatus and method for measuring small increases in machine tool drive motor power
US7058360B1 (en) * 2001-02-08 2006-06-06 National Semiconductor Corporation Method and system for stabilizing the performance variation of a radio frequency device
CA2346136A1 (en) * 2001-05-09 2002-11-09 Masoud Karimi Ghartemani Enhanced phase-locked loop (pll) system
US7254195B2 (en) * 2003-08-25 2007-08-07 M/A-Com, Inc. Apparatus, methods and articles of manufacture for dynamic differential delay correction
DE102004015831B4 (de) * 2004-03-31 2007-07-12 Infineon Technologies Ag Integrierte Schaltung und Verfahren
JP2006140582A (ja) * 2004-11-10 2006-06-01 Matsushita Electric Ind Co Ltd 送信信号生成装置
EP1742367A1 (de) * 2005-06-30 2007-01-10 STMicroelectronics SA Phasenregelkreisschaltung
US7446612B2 (en) * 2006-09-08 2008-11-04 Skyworks Solutions, Inc. Amplifier feedback and bias configuration
US7696826B2 (en) * 2006-12-04 2010-04-13 Skyworks Solutions, Inc. Temperature compensation of collector-voltage control RF amplifiers
JP4697208B2 (ja) * 2007-09-26 2011-06-08 ソニー株式会社 位相雑音除去装置及び方法、並びにプログラム
KR101844300B1 (ko) * 2012-01-26 2018-05-15 삼성전자주식회사 입력 신호에 응답하여 동적으로 제어 가능한 포락선 검파 장치 및 방법
CN109004930A (zh) * 2018-09-29 2018-12-14 清华大学 基于锁相环直接解调频率调制信号的电路系统及控制方法

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US3209271A (en) * 1961-08-17 1965-09-28 Radiation Inc Phase-locked loops
US3421105A (en) * 1967-02-28 1969-01-07 Nasa Automatic acquisition system for phase-lock loop
US3551829A (en) * 1968-05-02 1970-12-29 Hughes Aircraft Co Phase lock receiver with a constant slope network
US3873931A (en) * 1973-10-05 1975-03-25 Comstron Corp FM demodulator circuits
US3976943A (en) * 1974-08-19 1976-08-24 Texas Instruments Incorporated Phase lock loop AM/FM receiver
US4107624A (en) * 1977-07-18 1978-08-15 Sperry Rand Corporation Automatic frequency-tracking circuit
US4336616A (en) * 1978-12-15 1982-06-22 Nasa Discriminator aided phase lock acquisition for suppressed carrier signals
US4270221A (en) * 1979-10-17 1981-05-26 Rca Corporation Phaselocked receiver with orderwire channel
GB2109201B (en) * 1981-10-26 1985-03-27 Philips Electronic Associated Direct modulation fm receiver
US4568888A (en) * 1983-11-08 1986-02-04 Trw Inc. PLL Fast frequency synthesizer with memories for coarse tuning and loop gain correction
JPS6173416A (ja) * 1984-09-19 1986-04-15 Nec Corp 自動周波数制御・自動利得制御回路
US4595886A (en) * 1984-10-19 1986-06-17 Rockwell International Corporation AC loop gain and DC prepositioning adjustment for phase locked loop
JPS6212288A (ja) * 1985-07-10 1987-01-21 Toshiba Corp 位相同期ル−プ形ｆｍ復調器
US4792993A (en) * 1985-10-30 1988-12-20 Capetronic (Bsr) Ltd. TVRD receiver system with automatic bandwidth adjustment
GB2183947B (en) * 1985-12-06 1990-07-25 Plessey Co Plc Frequency synthesiser
JPS63236405A (ja) * 1987-03-25 1988-10-03 Hitachi Ltd Ｆｍ受信機
US4743867A (en) * 1987-08-03 1988-05-10 Motorola, Inc. Compensation circuitry for dual port phase-locked loops
JP2888858B2 (ja) * 1989-04-20 1999-05-10 アルプス電気株式会社 Ｆｍ映像信号回路
JPH03117203A (ja) * 1989-09-29 1991-05-20 Nec Corp 位相固定ループによるｆｍ復調回路
JPH03229503A (ja) * 1990-02-05 1991-10-11 Alps Electric Co Ltd Ｐｌｌ復調回路
US5036291A (en) * 1990-05-11 1991-07-30 General Instrument Corporation On channel agile FM demodulator
JPH0446439A (ja) * 1990-06-13 1992-02-17 Sony Corp ループフイルタ回路
US5130671A (en) * 1990-12-26 1992-07-14 Hughes Aircraft Company Phase-locked loop frequency tracking device including a direct digital synthesizer
FR2673789B1 (fr) * 1991-03-08 1993-09-03 Alcatel Espace Demodulateur a boucle de phase.
US5384550A (en) * 1992-09-18 1995-01-24 Rockwell International Corporation Loop transient response estimator for improved acquisition performance
GB9320067D0 (en) * 1993-09-29 1993-11-17 Sgs Thomson Microelectronics Demodulation of fm audio carrier

Also Published As

Publication number Publication date
DE69421490D1 (de) 1999-12-09
US6160444A (en) 2000-12-12
EP0645881B1 (de) 1999-11-03
GB9320067D0 (en) 1993-11-17
JP2729028B2 (ja) 1998-03-18
EP0645881A1 (de) 1995-03-29
JPH07202573A (ja) 1995-08-04
US5631601A (en) 1997-05-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee