JPH09214844A - 可変ｉｆゲイン制御を行うｉｆ復調器回路 - Google Patents

可変ｉｆゲイン制御を行うｉｆ復調器回路

Info

Publication number
JPH09214844A
JPH09214844A JP9009663A JP966397A JPH09214844A JP H09214844 A JPH09214844 A JP H09214844A JP 9009663 A JP9009663 A JP 9009663A JP 966397 A JP966397 A JP 966397A JP H09214844 A JPH09214844 A JP H09214844A
Authority
JP
Japan
Prior art keywords
signal
image signal
circuit
offset
time constant
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.)
Abandoned
Application number
JP9009663A
Other languages
English (en)
Japanese (ja)
Other versions
JPH09214844A5 (enExample
Inventor
Joachim Brilka
ブリルカ ヨーアヒム
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.)
Koninklijke Philips NV
Original Assignee
Philips Electronics NV
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 Philips Electronics NV filed Critical Philips Electronics NV
Publication of JPH09214844A publication Critical patent/JPH09214844A/ja
Publication of JPH09214844A5 publication Critical patent/JPH09214844A5/ja
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/52—Automatic gain control
    • H04N5/54—Automatic gain control for positively-modulated picture signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/455—Demodulation-circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Picture Signal Circuits (AREA)
  • Television Receiver Circuits (AREA)
JP9009663A 1996-01-23 1997-01-22 可変ｉｆゲイン制御を行うｉｆ復調器回路 Abandoned JPH09214844A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19602187A DE19602187A1 (de) 1996-01-23 1996-01-23 Bild-ZF-Demodulatorschaltung mit variabler ZF-Verstärkungsregelung
DE19602187:1 1996-01-23

Publications (2)

Publication Number Publication Date
JPH09214844A true JPH09214844A (ja) 1997-08-15
JPH09214844A5 JPH09214844A5 (enExample) 2004-12-24

Family

ID=7783376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9009663A Abandoned JPH09214844A (ja) 1996-01-23 1997-01-22 可変ｉｆゲイン制御を行うｉｆ復調器回路

Country Status (4)

Country Link
US (1) US5838395A (enExample)
EP (1) EP0786898B1 (enExample)
JP (1) JPH09214844A (enExample)
DE (2) DE19602187A1 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002526730A (ja) * 1998-10-08 2002-08-20 ロード コーポレーション 振動絶縁テーブルのための絶縁システム
CN108513618A (zh) * 2017-03-29 2018-09-07 深圳市大疆创新科技有限公司 脉冲信息测量方法及相关装置、移动平台

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2778052B1 (fr) * 1998-04-24 2000-07-21 Sgs Thomson Microelectronics Demodulateur, en particulier de signal de chrominance secam, a double ajustage en frequence
FR2778053B1 (fr) * 1998-04-24 2000-07-21 Sgs Thomson Microelectronics Demodulateur de signal de chrominance secam a deux voies rouge>bleu et a oscillateur unique
US6766153B2 (en) 2001-04-02 2004-07-20 Itran Communications Ltd. Dynamic automatic gain control circuit employing kalman filtering
WO2002085006A1 (en) * 2001-04-16 2002-10-24 Thomson Licensing S.A. Gain control for a high definition television demodulator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214756C2 (de) 1981-05-02 1991-10-17 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zum Ermitteln des Wertes eines Referenzpegels
NL8105465A (nl) * 1981-12-04 1983-07-01 Philips Nv Synchrone demodulatieschakeling voor een, door een videosignaal in amplitude gemoduleerde draaggolf.
US4885546A (en) * 1988-02-10 1989-12-05 Sony Corp. Digital demodulator for AM or FM
DE4040298A1 (de) * 1990-12-17 1992-06-25 Philips Patentverwaltung Schaltungsanordnung zum regeln der amplitude eines fernsehsignals
US5272531A (en) * 1992-12-07 1993-12-21 Motorola, Inc. Automatic gain control system for use in positive modulation which detects the peak white voltage level slowly while simultaneously adjusting black voltage level fluctuations quickly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002526730A (ja) * 1998-10-08 2002-08-20 ロード コーポレーション 振動絶縁テーブルのための絶縁システム
CN108513618A (zh) * 2017-03-29 2018-09-07 深圳市大疆创新科技有限公司 脉冲信息测量方法及相关装置、移动平台
CN108513618B (zh) * 2017-03-29 2022-06-21 深圳市大疆创新科技有限公司 脉冲信息测量方法及相关装置、移动平台

Also Published As

Publication number Publication date
DE59713026D1 (de) 2010-02-25
US5838395A (en) 1998-11-17
EP0786898B1 (de) 2010-01-06
EP0786898A2 (de) 1997-07-30
DE19602187A1 (de) 1997-07-24
EP0786898A3 (de) 2000-12-13

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Legal Events

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A521 Written amendment

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Effective date: 20040122

A621 Written request for application examination

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Effective date: 20040122

A762 Written abandonment of application

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Effective date: 20040927