JPS5669984A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS5669984A
JPS5669984A JP14573779A JP14573779A JPS5669984A JP S5669984 A JPS5669984 A JP S5669984A JP 14573779 A JP14573779 A JP 14573779A JP 14573779 A JP14573779 A JP 14573779A JP S5669984 A JPS5669984 A JP S5669984A
Authority
JP
Japan
Prior art keywords
signal
band
frequency
sound signal
recording
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.)
Pending
Application number
JP14573779A
Other languages
Japanese (ja)
Inventor
Shigeo Tanaka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14573779A priority Critical patent/JPS5669984A/en
Publication of JPS5669984A publication Critical patent/JPS5669984A/en
Pending 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
    • H04N9/835—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 involving processing of the sound signal

Abstract

PURPOSE:To reduce the relative speed between a magnetic tape and a head by narrowing the overall band width by recording a sound signal in the lower side band of a color signal which is nearly unused in the normal operation and then by reproducing the signal. CONSTITUTION:The frequency spectrum consists of FM luminance signal band 40, color signal band 41 and FM sound signal band 42. The luminance signal and color signal, constituting a video signal together, are correlated with a horizontal synchronizing signal strongly and brought into the relation of frequency interleaving, so that even when mutual side-band waves are made close, no disturbance will appear on the screen. Consequently, the overall frequency band can be narrowed. Since the sound signal decreases in frequency and increases in wavelength, narrow track recording is performed specially for high density recording and as adjacent tracks become closer and closer, tracks get easier and easier to be influenced by disturbance due to cross talk from adjacent tracks. For this purpose, two frequency- modulated carriers of an FM sound signal are used.
JP14573779A 1979-11-10 1979-11-10 Magnetic recording and reproducing device Pending JPS5669984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14573779A JPS5669984A (en) 1979-11-10 1979-11-10 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14573779A JPS5669984A (en) 1979-11-10 1979-11-10 Magnetic recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS5669984A true JPS5669984A (en) 1981-06-11

Family

ID=15391968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14573779A Pending JPS5669984A (en) 1979-11-10 1979-11-10 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS5669984A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518346A1 (en) * 1981-12-15 1983-06-17 Sony Corp DEVICE FOR HIGH QUALITY RECORDING OF SOUND SIGNALS ON IMAGE RECORDER
FR2518343A1 (en) * 1981-12-11 1983-06-17 Sony Corp APPARATUS FOR RECORDING AND REPRODUCING IMAGE AND SOUND SIGNALS
EP0101179A2 (en) * 1982-07-19 1984-02-22 Dolby Laboratories Licensing Corporation Reduction of crosstalk effects in modulated audio signals carried in adjacent tracks of recorded media
EP0107295A2 (en) * 1982-08-30 1984-05-02 Pioneer Electronic Corporation Video disc type recording and reproducing system
FR2549994A1 (en) * 1983-07-30 1985-02-01 Pioneer Electronic Corp MODULATOR DEVICE FOR VIDEODISKS

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518343A1 (en) * 1981-12-11 1983-06-17 Sony Corp APPARATUS FOR RECORDING AND REPRODUCING IMAGE AND SOUND SIGNALS
FR2518346A1 (en) * 1981-12-15 1983-06-17 Sony Corp DEVICE FOR HIGH QUALITY RECORDING OF SOUND SIGNALS ON IMAGE RECORDER
EP0101179A2 (en) * 1982-07-19 1984-02-22 Dolby Laboratories Licensing Corporation Reduction of crosstalk effects in modulated audio signals carried in adjacent tracks of recorded media
EP0101179A3 (en) * 1982-07-19 1985-09-18 Dolby Laboratories Licensing Corporation Reduction of crosstalk effects in modulated audio signals carried in adjacent tracks of recorded media
EP0107295A2 (en) * 1982-08-30 1984-05-02 Pioneer Electronic Corporation Video disc type recording and reproducing system
FR2549994A1 (en) * 1983-07-30 1985-02-01 Pioneer Electronic Corp MODULATOR DEVICE FOR VIDEODISKS

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