CN85109710B - 直流恢复电路 - Google Patents

直流恢复电路 Download PDF

Info

Publication number
CN85109710B
CN85109710B CN85109710A CN85109710A CN85109710B CN 85109710 B CN85109710 B CN 85109710B CN 85109710 A CN85109710 A CN 85109710A CN 85109710 A CN85109710 A CN 85109710A CN 85109710 B CN85109710 B CN 85109710B
Authority
CN
China
Prior art keywords
signal
potential
circuit
level
current potential
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
Application number
CN85109710A
Other languages
English (en)
Chinese (zh)
Other versions
CN85109710A (zh
Inventor
奥井勇
恩田哲朗
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.)
Toshiba Corp
Original Assignee
Toshiba 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.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Publication of CN85109710A publication Critical patent/CN85109710A/zh
Publication of CN85109710B publication Critical patent/CN85109710B/zh
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/16—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/16—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/18—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
    • H04N5/185—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit for the black level

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Television Receiver Circuits (AREA)
CN85109710A 1984-12-12 1985-12-11 直流恢复电路 Expired CN85109710B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59262203A JPS61140279A (ja) 1984-12-12 1984-12-12 映像信号処理回路
JP262203/84 1984-12-12

Publications (2)

Publication Number Publication Date
CN85109710A CN85109710A (zh) 1986-08-20
CN85109710B true CN85109710B (zh) 1988-07-13

Family

ID=17372508

Family Applications (1)

Application Number Title Priority Date Filing Date
CN85109710A Expired CN85109710B (zh) 1984-12-12 1985-12-11 直流恢复电路

Country Status (6)

Country Link
US (1) US4691235A (OSRAM)
JP (1) JPS61140279A (OSRAM)
KR (1) KR900006467B1 (OSRAM)
CN (1) CN85109710B (OSRAM)
DE (1) DE3543771A1 (OSRAM)
GB (1) GB2168566B (OSRAM)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63273127A (ja) * 1987-04-30 1988-11-10 Nec Home Electronics Ltd 印字デ−タ表示装置
KR910006375B1 (ko) * 1988-03-17 1991-08-21 삼성전자 주식회사 오토 매스터 페데스털 조정회로
JP2764761B2 (ja) * 1990-07-19 1998-06-11 松下電器産業株式会社 映像信号平均輝度レベル検出装置
JP3047927B2 (ja) * 1991-04-09 2000-06-05 三菱電機株式会社 映像信号クランプ回路
US5453798A (en) * 1993-02-05 1995-09-26 Thomson Consumer Electronics, Inc. Black compensation circuit for a video display system
TW269766B (OSRAM) * 1993-02-05 1996-02-01 Thomson Consumer Electronics
JPH07131677A (ja) * 1993-11-02 1995-05-19 Nec Corp ビデオ信号のサグ補正回路
US5844439A (en) * 1996-03-13 1998-12-01 Integrated Circuit Systems, Inc. DC restoration circuit for multi-level transmission signals
JP3127878B2 (ja) * 1998-03-18 2001-01-29 日本電気株式会社 クランプ回路
US6661858B1 (en) 2000-09-12 2003-12-09 Beaudin Andre DC restoration circuit for a radio receiver
US9483039B2 (en) * 2012-04-19 2016-11-01 Rosemount Inc. Wireless field device having discrete input/output
US12425062B2 (en) 2023-03-06 2025-09-23 Rosemount Inc. Load adapter module for wireless discrete input/output field device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5754983B2 (OSRAM) * 1974-04-19 1982-11-20
CH586879A5 (OSRAM) * 1975-07-21 1977-04-15 Nationale Sa
GB1536215A (en) * 1976-07-05 1978-12-20 Decca Ltd Clamping circuits for television signals
JPS5399716A (en) * 1977-02-10 1978-08-31 Sony Corp Clamp circuit
US4197557A (en) * 1977-05-05 1980-04-08 Rca Corporation Brightness control circuit employing a closed control loop
CA1089981A (en) * 1977-06-29 1980-11-18 Takao Tsuchiya Clamping circuit for color television signals
US4143398A (en) * 1978-03-22 1979-03-06 Rca Corporation Automatic brightness control circuit employing a closed control loop stabilized against disruption by large amplitude video signals
US4204221A (en) * 1979-01-31 1980-05-20 Rca Corporation Predictably biased kinescope driver arrangement in a video signal processing system
US4293874A (en) * 1980-02-04 1981-10-06 Zenith Radio Corporation DC Restoration circuit for television receiver
US4331981A (en) * 1980-09-25 1982-05-25 Rca Corporation Linear high gain sampling amplifier
US4484226A (en) * 1982-10-14 1984-11-20 Rca Corporation Automatic kinescope bias control system compensated for kinescope electron gun conduction dissimilarities
US4484229A (en) * 1982-10-29 1984-11-20 Rca Corporation Automatic kinescope bias control system with selectively disabled signal processor

Also Published As

Publication number Publication date
DE3543771A1 (de) 1986-06-12
CN85109710A (zh) 1986-08-20
US4691235A (en) 1987-09-01
GB8530106D0 (en) 1986-01-15
GB2168566B (en) 1988-05-05
DE3543771C2 (OSRAM) 1991-11-21
KR860005534A (ko) 1986-07-23
JPS61140279A (ja) 1986-06-27
KR900006467B1 (ko) 1990-08-31
GB2168566A (en) 1986-06-18

Similar Documents

Publication Publication Date Title
CN85109710B (zh) 直流恢复电路
US5642070A (en) Signal processing circuit and system for detection of absolute value
JP3880345B2 (ja) 差動増幅回路及びそれを用いた固体撮像装置並びに撮像システム
CN101923266B (zh) 偏置消除电路
CN1069479C (zh) 具有用于载波差拍伴音和自动微调的辅助中频放大器的图象中频放大器
EP0115196B1 (en) Clamp circuit for use in video camera having image pick-up device
JPS61156978A (ja) テレビジヨン・カメラ
US4293874A (en) DC Restoration circuit for television receiver
US20060291010A1 (en) Scanning speed control device and method
CA1139876A (en) Noise eliminator for television synchronizing signal separating circuits
US11539901B2 (en) Image sensing device having a mirroring circuit suitable for compensating an operating current
EP0120586A2 (en) Signal processing circuits
KR900002645B1 (ko) 크람푸 회로
KR0155616B1 (ko) 영상 신호 클램프 회로
JP3631161B2 (ja) カメラシステム
JPH0525230B2 (OSRAM)
JP3375172B2 (ja) Ｍｏｓ技術で複合映像信号から同期信号を抽出するための回路
JPH0527301B2 (OSRAM)
JP2002527922A (ja) 過渡回復補助を伴なう増幅器装置
GB2129247A (en) Signal sampling circuit
US20050195866A1 (en) Circuit for filtering a laser signal
JP3100484B2 (ja) 自動車用アンテナ自動切換装置
JPS596676A (ja) 情報信号插入回路
KR930005608Y1 (ko) 비디오 입력 자동 선택회로
JP2606477B2 (ja) 映像信号送受信装置

Legal Events

Date Code Title Description
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C13 Decision
GR02 Examined patent application
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee