ES2089150T3 - Deenfasis y reenfasis de altas frecuencias en una señal de video. - Google Patents

Deenfasis y reenfasis de altas frecuencias en una señal de video.

Info

Publication number
ES2089150T3
ES2089150T3 ES91309887T ES91309887T ES2089150T3 ES 2089150 T3 ES2089150 T3 ES 2089150T3 ES 91309887 T ES91309887 T ES 91309887T ES 91309887 T ES91309887 T ES 91309887T ES 2089150 T3 ES2089150 T3 ES 2089150T3
Authority
ES
Spain
Prior art keywords
luminance signal
high frequency
circuit
level
frequency portion
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
ES91309887T
Other languages
English (en)
Inventor
Christopher H Strolle
Werner F Wedam
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Application granted granted Critical
Publication of ES2089150T3 publication Critical patent/ES2089150T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/02—Analogue recording or reproducing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/797—Processing of colour television signals in connection with recording for recording the signal in a plurality of channels, the bandwidth of each channel being less than the bandwidth of the signal
    • H04N9/7976—Processing of colour television signals in connection with recording for recording the signal in a plurality of channels, the bandwidth of each channel being less than the bandwidth of the signal by spectrum folding of the high frequency components of the luminance signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/923—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback using preemphasis of the signal before modulation and deemphasis of the signal after demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
    • H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal

Landscapes

  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Television Signal Processing For Recording (AREA)
  • Picture Signal Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Semiconductor Lasers (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Television Systems (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Details Of Television Scanning (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Holo Graphy (AREA)

Abstract

SE PRESENTA UN SISTEMA PARA REGISTRAR Y REPRODUCIR UNA SEÑAL DE LUMINANCIA (Y) EN O DESDE UN MEDIO (40). EL SISTEMA INCLUYE UN CIRCUITO DE DESACENTUACION ADAPTABLE (10) PARA REDUCIR DE MANERA ADAPTABLE EL NIVEL DE UNA PARTE DE ALTA FRECUENCIA DE LA SEÑAL DE LUMINANCIA (Y). UN CIRCUITO DE REGISTRO REGISTRA LA SEÑAL DE LUMINACIA DE NIVEL REDUCIDO EN EL MEDIO (40). UN CIRCUITO DE REPRODUCCION REPRODUCE LA SEÑAL DE LUMINANCIA DE NIVEL REDUCIDO DESDE EL MEDIO (40). UN CIRCUITO DE REACENTUACION (70) ACENTUA DE MANERA NO ADAPTABLE EL NIVEL DE LA PARTE DE ALTA FRECUENCIA DE LA SEÑAL DE LUMINANCIA DE NIVEL REDUCIDO PARA PRODUCIR LA SEÑAL DE LUMINANCIA (Y). CON ESTE FIN, UN CIRCUITO (73) NUCLEIZA UNA PARTE DE ALTA FRECUENCIA DE LA SEÑAL DE LUMINANCIA DE NIVEL REDUCIDO, Y EL NIVEL DE LA PARTE DE ALTA FRECUENCIA CON NUCLEO ES ENTONCES ACENTUADO EN UNA CANTIDAD PREDETERMINADA PARA PRODUCIR LA SEÑAL DE LUMINANCIA (Y).
ES91309887T 1990-10-26 1991-10-25 Deenfasis y reenfasis de altas frecuencias en una señal de video. Expired - Lifetime ES2089150T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60449390A 1990-10-26 1990-10-26

Publications (1)

Publication Number Publication Date
ES2089150T3 true ES2089150T3 (es) 1996-10-01

Family

ID=24419822

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91309887T Expired - Lifetime ES2089150T3 (es) 1990-10-26 1991-10-25 Deenfasis y reenfasis de altas frecuencias en una señal de video.

Country Status (11)

Country Link
EP (2) EP0482945B1 (es)
JP (1) JP2672422B2 (es)
KR (1) KR940001422B1 (es)
CN (1) CN1030956C (es)
AT (2) ATE138522T1 (es)
CA (1) CA2053966C (es)
DE (3) DE69119693T2 (es)
DK (1) DK0482945T3 (es)
ES (1) ES2089150T3 (es)
PT (1) PT99332A (es)
TW (1) TW242212B (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930010356B1 (ko) * 1991-06-27 1993-10-16 삼성전자 주식회사 동적응재생회로

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1230467B (de) * 1960-12-19 1966-12-15 Minnesota Mining & Mfg Einrichtung zur Verbesserung des Verhaeltnisses von Signalspannung zu Rauschspannung bei der UEbertragung oder magnetischen Speicherung von elektrischen Signalen
JPS5551938A (en) * 1978-10-06 1980-04-16 Nissan Motor Co Ltd Exhaust gas refluxing device for internal combustion engine
JPS55117712A (en) * 1979-02-28 1980-09-10 Matsushita Electric Ind Co Ltd Noise reduction circuit of video signal recording and reproducing device
JPS60152646A (ja) * 1984-01-23 1985-08-10 Kobe Steel Ltd 半導体用リ−ドフレ−ム材
JPS6236991A (ja) * 1985-08-12 1987-02-17 Hitachi Ltd クリツプ補償回路
US4831463A (en) * 1987-01-30 1989-05-16 Faroudja Y C Video processing in which high frequency luminance components are folded into a mid-band spectrum

Also Published As

Publication number Publication date
PT99332A (pt) 1993-12-31
KR920017069A (ko) 1992-09-26
DE69132194T2 (de) 2000-10-05
EP0482945B1 (en) 1996-05-22
DE9117171U1 (de) 1996-09-12
DE69132194D1 (de) 2000-06-15
JPH04284788A (ja) 1992-10-09
CN1061125A (zh) 1992-05-13
DK0482945T3 (da) 1996-06-24
KR940001422B1 (ko) 1994-02-23
EP0482945A3 (en) 1993-03-03
TW242212B (es) 1995-03-01
EP0698997A3 (es) 1996-03-13
DE69119693T2 (de) 1996-11-28
EP0698997B1 (en) 2000-05-10
ATE192888T1 (de) 2000-05-15
EP0698997A2 (en) 1996-02-28
CN1030956C (zh) 1996-02-07
EP0482945A2 (en) 1992-04-29
ATE138522T1 (de) 1996-06-15
DE69119693D1 (de) 1996-06-27
JP2672422B2 (ja) 1997-11-05
CA2053966A1 (en) 1992-04-27
CA2053966C (en) 1997-04-22

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