ES2104725T3 - Disposicion limitadora de la corriente de haz que tiene un umbral sensible a la amplitud de pico. - Google Patents

Disposicion limitadora de la corriente de haz que tiene un umbral sensible a la amplitud de pico.

Info

Publication number
ES2104725T3
ES2104725T3 ES91918075T ES91918075T ES2104725T3 ES 2104725 T3 ES2104725 T3 ES 2104725T3 ES 91918075 T ES91918075 T ES 91918075T ES 91918075 T ES91918075 T ES 91918075T ES 2104725 T3 ES2104725 T3 ES 2104725T3
Authority
ES
Spain
Prior art keywords
current
contrast
current limiter
provision
average
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
ES91918075T
Other languages
English (en)
Inventor
Peter Eduard Haferl
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 ES2104725T3 publication Critical patent/ES2104725T3/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
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/645—Beam current control means

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)

Abstract

UNA DISPOSICION LIMITADORA DE CORRIENTE DE HAZ AUTOMATICA DE UN RECEPTOR DE TELEVISION O UN MONITOR DE PRESENTACION VISUAL QUE COMPRENDE UN LIMITADOR DE CORRIENTE DE HAZ MEDIA (70A) ACOPLADO AL LADO BAJO DEL TRANSFORMADOR DE ALTA TENSION (50) PARA REDUCIR EL CONTRASTE DE UNA IMAGEN REPRODUCIDA, CUANDO LA CORRIENTE DE HAZ MEDIA EXCEDE UN UMBRAL Y UN LIMITADOR DE CORRIENTE MAXIMA (70B) ACOPLADO A LOS CATODOS DEL TUBO DE IMAGEN (40) PARA CONTROLAR UNA FUENTE DE CORRIENTE (110), QUE DETERMINA EL UMBRAL DEL LIMITADOR DE CORRIENTE DE HAZ MEDIA (70A) EN RESPUESTA A LA SUMA DE LAS CORRIENTES CATODICAS DEL TUBO DE IMAGEN. EN UNA REALIZACION, LOS CIRCUITOS DETECTORES DE CORRIENTES CATODICAS COMPRENDEN LOS MISMOS CIRCUITOS DETECTORES DE CORRIENTES CATODICAS UTILIZADOS EN UNA DISPOSICION DE AJUSTE AUTOMATICO DEL NIVEL DE NEGROS. ESTA DISPOSICION LIMITADORA DE HAZ PERMITE EL FUNCIONAMIENTO A ALTOS NIVELES DE CONTRASTE MIENTRAS SE INHIBEN LAS AREAS BLANCAS MAXIMAS EXCESIVAS. 1. CANAL PROCESO VIDEO 2. CIRCUITO MUESTREO AKB 3. LIMITADOR CORRIENTE HAZ MAX. 4. FUENTE CORRIENTE 5. CIRCUITO DEFL. HOR. 6. LIMITADOR CORRIENTE HAZ MEDIA 7. CONTROL CONTRASTE MANUAL 8. CONTRASTE 9. AMPLIFICADOR SALIDA VIDEO
ES91918075T 1990-03-20 1991-03-19 Disposicion limitadora de la corriente de haz que tiene un umbral sensible a la amplitud de pico. Expired - Lifetime ES2104725T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909006250A GB9006250D0 (en) 1990-03-20 1990-03-20 Non-linear beam current limiter

Publications (1)

Publication Number Publication Date
ES2104725T3 true ES2104725T3 (es) 1997-10-16

Family

ID=10672926

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91918075T Expired - Lifetime ES2104725T3 (es) 1990-03-20 1991-03-19 Disposicion limitadora de la corriente de haz que tiene un umbral sensible a la amplitud de pico.

Country Status (11)

Country Link
EP (1) EP0551379B1 (es)
JP (1) JP3354570B2 (es)
KR (1) KR0185573B1 (es)
CN (1) CN1029283C (es)
DE (1) DE69126532T2 (es)
ES (1) ES2104725T3 (es)
GB (1) GB9006250D0 (es)
HK (1) HK1004591A1 (es)
MY (1) MY104808A (es)
SG (1) SG82526A1 (es)
WO (1) WO1991015080A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19818387A1 (de) * 1997-10-20 1999-04-22 Thomson Brandt Gmbh Verfahren zum Regeln der Bildleistung bei einem Fernsehempfänger

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167025A (en) * 1978-02-09 1979-09-04 Rca Corporation Automatic peak beam current limiter
US4599643A (en) * 1983-12-29 1986-07-08 Rca Corporation Apparatus responsive to plural color video signals for amplitude limiting the video signals to assist beam current limiting
US4599642A (en) * 1984-03-02 1986-07-08 Rca Corporation Video signal processor with bias error compensation
US4633320A (en) * 1984-03-08 1986-12-30 Rca Corporation Video signal processor with automatic kinescope beam current limiter

Also Published As

Publication number Publication date
GB9006250D0 (en) 1990-05-16
JPH05505713A (ja) 1993-08-19
DE69126532D1 (de) 1997-07-17
MY104808A (en) 1994-05-31
KR0185573B1 (ko) 1999-05-01
EP0551379B1 (en) 1997-06-11
DE69126532T2 (de) 1997-12-04
EP0551379A1 (en) 1993-07-21
SG82526A1 (en) 2001-08-21
CN1029283C (zh) 1995-07-05
CN1055096A (zh) 1991-10-02
HK1004591A1 (en) 1998-11-27
JP3354570B2 (ja) 2002-12-09
WO1991015080A1 (en) 1991-10-03

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