ES2100168T3 - Circuito de fijacion de nivel. - Google Patents

Circuito de fijacion de nivel.

Info

Publication number
ES2100168T3
ES2100168T3 ES90313649T ES90313649T ES2100168T3 ES 2100168 T3 ES2100168 T3 ES 2100168T3 ES 90313649 T ES90313649 T ES 90313649T ES 90313649 T ES90313649 T ES 90313649T ES 2100168 T3 ES2100168 T3 ES 2100168T3
Authority
ES
Spain
Prior art keywords
current source
constant current
output
fixing circuit
output terminal
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 - Lifetime
Application number
ES90313649T
Other languages
English (en)
Inventor
Russell Thomas Fling
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.)
Filing date
Publication date
Application filed by RCA Licensing Corp filed Critical RCA Licensing Corp
Application granted granted Critical
Publication of ES2100168T3 publication Critical patent/ES2100168T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/003—Changing the DC level

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Picture Signal Circuits (AREA)
  • Manipulation Of Pulses (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Networks Using Active Elements (AREA)

Abstract

UN CIRCUITO DE BLOQUEO INCLUYE UN CONDENSADOR DE ACOPLO (C1) CONECTADO ENTRE LOS TERMINALES DE SEÑAL DE ENTRADA (10) Y SEÑAL DE SALIDA (12). UN GENERADOR DE CORRIENTE CONSTANTE (18) Y UNA FUENTE DE CORRIENTE CONSTANTE (16) SE CONECTAN AL TERMINAL DE SALIDA. UN COMPARADOR (14), ACOPLADO AL TERMINAL DE SALIDA VIA FILTRO PASO BAJO (R1, C2), GENERA SEÑALES PARA ADECUAR LA FUENTE DE CORRIENTE DEPENDIENTE (16) A LA FUENTE DE CORRIENTE SIEMPRE QUE LOS TERMINALES DE SALIDA MUESTREN UN POTENCIAL QUE DIFIERA DE UNA REFERENCIA PREDETERMINADA, CON POLARIDAD TAMBIEN PREFIJADA.
ES90313649T 1990-01-19 1990-12-14 Circuito de fijacion de nivel. Expired - Lifetime ES2100168T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/467,608 US5027017A (en) 1990-01-19 1990-01-19 Sync tip clamp circuitry

Publications (1)

Publication Number Publication Date
ES2100168T3 true ES2100168T3 (es) 1997-06-16

Family

ID=23856380

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90313649T Expired - Lifetime ES2100168T3 (es) 1990-01-19 1990-12-14 Circuito de fijacion de nivel.

Country Status (11)

Country Link
US (1) US5027017A (es)
EP (1) EP0437945B1 (es)
JP (1) JP3225053B2 (es)
KR (1) KR100227709B1 (es)
CN (1) CN1026842C (es)
CA (1) CA2031082A1 (es)
DE (1) DE69030569T2 (es)
ES (1) ES2100168T3 (es)
FI (1) FI102999B1 (es)
MY (1) MY104551A (es)
SG (1) SG97736A1 (es)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5343255A (en) * 1992-09-17 1994-08-30 Thomson Consumer Electronics, Inc. Video processing circuit with IF AGC loop, auxiliary video clamp and shared reference voltage source formed on common integrated circuit
FR2705520B1 (fr) * 1993-05-19 1995-08-04 Sgs Thomson Microelectronics Dispositif d'ajustement du niveau du noir d'un signal vidéo.
US5418410A (en) * 1993-05-25 1995-05-23 Motorola, Inc. Leading edge blanking circuit
JP3384045B2 (ja) * 1993-07-27 2003-03-10 ソニー株式会社 シンクチップクランプ／同期分離回路
US5410366A (en) * 1993-11-01 1995-04-25 Motorola, Inc. Circuit and method of clamping a video signal with first and second current sources
GB9417418D0 (en) * 1994-08-30 1994-10-19 Plessey Semiconductors Ltd Semiconductor circuit arrangement
EP0700200A3 (en) * 1994-08-30 1996-07-10 Plessey Semiconductors Ltd Video sync tip clamp circuit
KR960028179A (ko) * 1994-12-06 1996-07-22 조셉 제이 락스 적응 동기 신호 분리기
US5841488A (en) * 1995-12-28 1998-11-24 Thomson Consumer Electronics, Inc. Multiple video input clamping arrangement
DE19637312A1 (de) 1996-09-12 1998-03-19 Bosch Gmbh Robert Verfahren zur Kontrolle der Verbindungen eines Übertragungssystems und Komponente zur Durchführung des Verfahrens
DE69731615T2 (de) * 1996-09-26 2005-12-01 Koninklijke Philips Electronics N.V. Schaltung zur stromverteilung mit zusätzlichem parallelem gleichstromsenkkreis
ATE269606T1 (de) * 1997-04-04 2004-07-15 Gennum Corp Seriendatenübertragungsempfänger mit automatischer kabelentzerrungseinrichtung, verstärkungsregelungssystem und wiederherstellungseinrichtung der gleichspannungskomponenten
CA2201834A1 (en) * 1997-04-04 1998-10-04 Gennum Corporation Serial digital data communications receiver with improved automatic cable equalizer, agc system, and dc restorer
EP0988700A1 (de) * 1997-06-09 2000-03-29 Siemens Aktiengesellschaft Integrierte schaltungsanordnung
JP3127878B2 (ja) * 1998-03-18 2001-01-29 日本電気株式会社 クランプ回路
US6130719A (en) * 1998-09-04 2000-10-10 Telecruz Technology, Inc. Method and apparatus for accurately recovering the synchronization signals contained in composite video signals
JP2002118443A (ja) * 2000-10-06 2002-04-19 Niigata Seimitsu Kk フィルタ回路
GB0101759D0 (en) * 2001-01-23 2001-03-07 Toumaz Technology Ltd Circuit
US7065134B2 (en) 2001-08-27 2006-06-20 Gennum Corporation Adaptive equalizer with large data rate range
US6956914B2 (en) 2001-09-19 2005-10-18 Gennum Corporation Transmit amplitude independent adaptive equalizer
WO2003079623A1 (en) 2002-03-15 2003-09-25 Gennum Corporation System and method for compensating line losses over a digital visual interface (dvi) link
US7375572B2 (en) 2005-07-05 2008-05-20 Mediatek Inc. Clamping circuit
CN101415070B (zh) * 2007-10-16 2010-10-27 瑞昱半导体股份有限公司 同步信号撷取器
JP5121502B2 (ja) * 2008-02-27 2013-01-16 キヤノン株式会社 直流電流除去回路
KR101286948B1 (ko) * 2008-03-31 2013-07-17 신닛테츠스미킨 카부시키카이샤 강재, 강재의 제조방법 및 강재의 제조장치
US8063688B2 (en) * 2009-01-21 2011-11-22 Texas Instruments Incorporated AC clamp circuit for video applications
CN103475801A (zh) * 2012-06-06 2013-12-25 比亚迪股份有限公司 一种信号箝位装置
CN108650436A (zh) * 2018-07-04 2018-10-12 无锡思泰迪半导体有限公司 一种集成比较器的滤波器结构

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2507231B1 (de) * 1975-02-20 1976-05-20 Bosch Gmbh Robert Schaltungsanordnung zur Wiedereinfuehrung des Gleichspannungsanteils in einem Videosignal
NL7901722A (nl) * 1979-03-05 1980-09-09 Philips Nv Klemschakeling voor een videosignaal.
DE3214756C2 (de) * 1981-05-02 1991-10-17 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zum Ermitteln des Wertes eines Referenzpegels
NL8200670A (nl) * 1982-02-19 1983-09-16 Philips Nv Voorversterker.
US4481433A (en) * 1982-07-29 1984-11-06 Rca Corporation Voltage clamp circuit utilizing an active device
US4513321A (en) * 1982-10-29 1985-04-23 Rca Corporation Black level clamp for television signals
DE3242127A1 (de) * 1982-11-13 1984-05-17 Robert Bosch Gmbh, 7000 Stuttgart Schaltungsanordnung zum betrieb einer bildroehre in einem fernsehempfaenger
JPS60117970A (ja) * 1983-11-30 1985-06-25 Canon Inc クランプ回路
US4644198A (en) * 1984-10-31 1987-02-17 Rca Corporation Signal clamp
EP0205923B1 (en) * 1985-05-21 1990-08-08 Citizen Watch Co. Ltd. Auto-pedestal level clamp circuit
JPS6223224A (ja) * 1985-07-22 1987-01-31 Oki Electric Ind Co Ltd デイジタル中継器用直流再生回路
DE3625702A1 (de) * 1986-07-30 1988-02-11 Siemens Ag Schaltungsanordnung zum klemmen von videosignalen
US4859871A (en) * 1987-02-13 1989-08-22 Fujitsu Limited Voltage level setting circuit

Also Published As

Publication number Publication date
FI910156L (fi) 1991-07-20
JP3225053B2 (ja) 2001-11-05
FI102999B (fi) 1999-03-31
US5027017A (en) 1991-06-25
EP0437945A1 (en) 1991-07-24
FI910156A0 (fi) 1991-01-11
FI102999B1 (fi) 1999-03-31
DE69030569T2 (de) 1997-08-07
EP0437945B1 (en) 1997-04-23
MY104551A (en) 1994-04-30
CA2031082A1 (en) 1991-07-20
KR910015167A (ko) 1991-08-31
DE69030569D1 (de) 1997-05-28
CN1026842C (zh) 1994-11-30
SG97736A1 (en) 2003-08-20
KR100227709B1 (ko) 1999-11-01
CN1053522A (zh) 1991-07-31
JPH04212570A (ja) 1992-08-04

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