JPH0454437B2 - - Google Patents

Info

Publication number
JPH0454437B2
JPH0454437B2 JP57150763A JP15076382A JPH0454437B2 JP H0454437 B2 JPH0454437 B2 JP H0454437B2 JP 57150763 A JP57150763 A JP 57150763A JP 15076382 A JP15076382 A JP 15076382A JP H0454437 B2 JPH0454437 B2 JP H0454437B2
Authority
JP
Japan
Prior art keywords
signal
circuit
frequency
emphasis
chroma signal
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
JP57150763A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5941992A (ja
Inventor
Tomomitsu Azeyanagi
Keiichi Komatsu
Noboru Kojima
Akira Shibata
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP57150763A priority Critical patent/JPS5941992A/ja
Priority to AT82111130T priority patent/ATE27757T1/de
Priority to AU91066/82A priority patent/AU536690B2/en
Priority to EP82111130A priority patent/EP0081198B1/en
Priority to DE8282111130T priority patent/DE3276562D1/de
Priority to CA000416961A priority patent/CA1201804A/en
Priority to ES517934A priority patent/ES517934A0/es
Priority to BR8207076A priority patent/BR8207076A/pt
Priority to US06/447,387 priority patent/US4524380A/en
Priority to KR8205507A priority patent/KR850001025B1/ko
Publication of JPS5941992A publication Critical patent/JPS5941992A/ja
Publication of JPH0454437B2 publication Critical patent/JPH0454437B2/ja
Granted 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
    • H04N9/79—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
    • H04N9/83—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 the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal
    • H04N9/84—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 the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal the recorded signal showing a feature, which is different in adjacent track parts, e.g. different phase or frequency
    • 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
    • H04N9/793—Processing of colour television signals in connection with recording for controlling the level of the chrominance signal, e.g. by means of automatic chroma control circuits
    • H04N9/7933—Processing of colour television signals in connection with recording for controlling the level of the chrominance signal, e.g. by means of automatic chroma control circuits the level control being frequency-dependent
    • 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
    • H04N9/793—Processing of colour television signals in connection with recording for controlling the level of the chrominance signal, e.g. by means of automatic chroma control circuits
    • H04N9/7933—Processing of colour television signals in connection with recording for controlling the level of the chrominance signal, e.g. by means of automatic chroma control circuits the level control being frequency-dependent
    • H04N9/7936—Processing of colour television signals in connection with recording for controlling the level of the chrominance signal, e.g. by means of automatic chroma control circuits the level control being frequency-dependent by using a preemphasis network at the recording side and a deemphasis network at the reproducing side
    • 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
    • H04N9/83—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 the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal
    • 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
    • H04N9/87—Regeneration of colour television signals
    • H04N9/898—Regeneration of colour television signals using frequency multiplication of the reproduced colour signal carrier with another auxiliary reproduced signal, e.g. a pilot signal carrier

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
JP57150763A 1981-12-07 1982-09-01 クロマ信号記録再生回路 Granted JPS5941992A (ja)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP57150763A JPS5941992A (ja) 1982-09-01 1982-09-01 クロマ信号記録再生回路
AT82111130T ATE27757T1 (de) 1981-12-07 1982-12-02 Aufzeichnungs- und wiedergabeschaltung fuer ein chrominanzsignal.
AU91066/82A AU536690B2 (en) 1981-12-07 1982-12-02 Chroma recording acc circuit
EP82111130A EP0081198B1 (en) 1981-12-07 1982-12-02 Chroma signal recording and reproducing circuit
DE8282111130T DE3276562D1 (en) 1981-12-07 1982-12-02 Chroma signal recording and reproducing circuit
CA000416961A CA1201804A (en) 1981-12-07 1982-12-03 Chroma signal recording and reproducing circuit
ES517934A ES517934A0 (es) 1981-12-07 1982-12-06 Un circuito de grabar y reproducir senales de croma en un aparato de grabacion y reproduccion magneticas.
BR8207076A BR8207076A (pt) 1981-12-07 1982-12-06 Circuito de registro e reproducao de sinal croma
US06/447,387 US4524380A (en) 1981-12-07 1982-12-07 Chroma signal recording and reproducing circuit
KR8205507A KR850001025B1 (ko) 1981-12-07 1982-12-07 색신호 기록 및 재생회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57150763A JPS5941992A (ja) 1982-09-01 1982-09-01 クロマ信号記録再生回路

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP1199382A Division JPH02198289A (ja) 1989-08-02 1989-08-02 クロマ信号の再生回路

Publications (2)

Publication Number Publication Date
JPS5941992A JPS5941992A (ja) 1984-03-08
JPH0454437B2 true JPH0454437B2 (en]) 1992-08-31

Family

ID=15503876

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57150763A Granted JPS5941992A (ja) 1981-12-07 1982-09-01 クロマ信号記録再生回路

Country Status (1)

Country Link
JP (1) JPS5941992A (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0691629B2 (ja) * 1985-01-28 1994-11-14 三菱電機株式会社 カラ−映像信号処理回路
JPH0681330B2 (ja) * 1985-02-25 1994-10-12 ソニー株式会社 映像信号記録装置

Also Published As

Publication number Publication date
JPS5941992A (ja) 1984-03-08

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