FR2358073A1 - Appareil d'enregistrement et de reproduction de signaux d'image de television sur bande magnetique mobile a des vitesses differentes - Google Patents

Appareil d'enregistrement et de reproduction de signaux d'image de television sur bande magnetique mobile a des vitesses differentes

Info

Publication number
FR2358073A1
FR2358073A1 FR7720836A FR7720836A FR2358073A1 FR 2358073 A1 FR2358073 A1 FR 2358073A1 FR 7720836 A FR7720836 A FR 7720836A FR 7720836 A FR7720836 A FR 7720836A FR 2358073 A1 FR2358073 A1 FR 2358073A1
Authority
FR
France
Prior art keywords
recording
magnetic tape
different speeds
image signals
television image
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.)
Granted
Application number
FR7720836A
Other languages
English (en)
Other versions
FR2358073B1 (fr
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of FR2358073A1 publication Critical patent/FR2358073A1/fr
Application granted granted Critical
Publication of FR2358073B1 publication Critical patent/FR2358073B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—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
    • H04N9/7908—Suppression of interfering signals at the reproducing side, e.g. noise
    • 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
    • H04N9/7908—Suppression of interfering signals at the reproducing side, e.g. noise
    • H04N9/7917—Suppression of interfering signals at the reproducing side, e.g. noise the interfering signals being cross-talk signals
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

L'invention concerne un appareil d'enregistrement et de reproduction de signaux d'image de télévision sur bande magnétique mobile à des vitesses différentes. Quand la vitesse de la bande est réduite, en éliminant les bandes de garde entre les pistes et en réduisant les largeurs de ces dernières pour obtenir une plus grande densité d'enregistrement, l'excursion de fréquence des signaux modulés en fréquence appliqués aux têtes magnétiques est réduite pendant l'enregistrement dans le but de réduire au minimum les signaux parasites dus à la transmodulation. L'invention s'applique notamment à l'enregistrement sur bande magnétique des signaux de télévision en couleurs.
FR7720836A 1976-07-06 1977-07-06 Appareil d'enregistrement et de reproduction de signaux d'image de television sur bande magnetique mobile a des vitesses differentes Granted FR2358073A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51080128A JPS6022402B2 (ja) 1976-07-06 1976-07-06 磁気記録装置

Publications (2)

Publication Number Publication Date
FR2358073A1 true FR2358073A1 (fr) 1978-02-03
FR2358073B1 FR2358073B1 (fr) 1982-05-14

Family

ID=13709570

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7720836A Granted FR2358073A1 (fr) 1976-07-06 1977-07-06 Appareil d'enregistrement et de reproduction de signaux d'image de television sur bande magnetique mobile a des vitesses differentes

Country Status (11)

Country Link
US (1) US4131912A (fr)
JP (1) JPS6022402B2 (fr)
AT (1) AT378302B (fr)
BR (1) BR7704425A (fr)
CA (1) CA1092704A (fr)
DE (1) DE2730595C2 (fr)
FR (1) FR2358073A1 (fr)
GB (1) GB1567347A (fr)
IT (1) IT1079974B (fr)
NL (1) NL7707525A (fr)
SE (1) SE438763B (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539507A (en) * 1976-07-14 1978-01-28 Sony Corp Recording apparatus
JPS5525805A (en) * 1978-08-09 1980-02-23 Hitachi Ltd Servo circuit of video tape recorder
JPS5553558A (en) * 1978-10-17 1980-04-19 Mitsubishi Chem Ind Preparation of laminate of metal and polyolefin
JPS5569448A (en) * 1978-11-20 1980-05-26 Mitsubishi Chem Ind Preparation of laminate of metal and polyolefin
JPS5717240A (en) * 1980-07-04 1982-01-28 Hitachi Ltd Dynamic deemphasis circuit
JPS57125588A (en) * 1981-01-29 1982-08-04 Sony Corp Digital reproducing device for video signal
EP0081802B1 (fr) * 1981-12-09 1986-04-02 Hitachi, Ltd. Système d'enregistrement magnétique
US4642705A (en) * 1982-08-06 1987-02-10 Lemelson Jerome H Magnetic recording and reproduction apparatus, system and method
JPH0720263B2 (ja) * 1986-01-17 1995-03-06 ソニー株式会社 搬送色信号処理回路
US4804894A (en) * 1986-06-10 1989-02-14 Sony Corporation Motor rotation servo control apparatus
JP2513204B2 (ja) * 1987-01-28 1996-07-03 ソニー株式会社 Ｐｃｍ信号再生装置の速度制御回路
GB8703769D0 (en) * 1987-02-18 1987-03-25 Thorn Emi Datatech Ltd Circuit
KR920001012B1 (ko) * 1987-07-07 1992-02-01 니뽄 덴끼 가부시끼가이샤 비데오신호 처리회로
EP0398875A4 (en) * 1988-06-29 1992-09-02 Larry D Goddard Image storage and retrieval apparatus
JP3000976U (ja) * 1994-02-10 1994-08-16 船井電機株式会社 ビデオ一体型テレビ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2023113A1 (fr) * 1968-11-12 1970-08-07 Rca Corp
FR2077338A1 (fr) * 1970-01-26 1971-10-22 Sony Corp
US3723638A (en) * 1969-02-21 1973-03-27 Victor Co Ltd Color video signal recording and reproducing system
FR2239831A1 (fr) * 1973-07-31 1975-02-28 Sony Corp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT257707B (de) * 1966-01-19 1967-10-25 Philips Nv Einrichtung zur Aufzeichnung und Wiedergabe von Videoinformationen
US4007484A (en) * 1973-07-31 1977-02-08 Sony Corporation Magnetic recording and/or reproducing apparatus with chrominance crosstalk elimination
JPS5625072B2 (fr) * 1974-01-12 1981-06-10

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2023113A1 (fr) * 1968-11-12 1970-08-07 Rca Corp
US3723638A (en) * 1969-02-21 1973-03-27 Victor Co Ltd Color video signal recording and reproducing system
FR2077338A1 (fr) * 1970-01-26 1971-10-22 Sony Corp
FR2239831A1 (fr) * 1973-07-31 1975-02-28 Sony Corp

Also Published As

Publication number Publication date
SE7707848L (sv) 1978-01-07
CA1092704A (fr) 1980-12-30
IT1079974B (it) 1985-05-16
NL7707525A (nl) 1978-01-10
US4131912A (en) 1978-12-26
BR7704425A (pt) 1978-04-04
ATA484377A (de) 1984-11-15
DE2730595C2 (de) 1986-04-24
FR2358073B1 (fr) 1982-05-14
JPS6022402B2 (ja) 1985-06-01
DE2730595A1 (de) 1978-01-12
AT378302B (de) 1985-07-25
GB1567347A (en) 1980-05-14
JPS536012A (en) 1978-01-20
AU2680577A (en) 1979-01-11
SE438763B (sv) 1985-04-29

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Legal Events

Date Code Title Description
ST Notification of lapse