JPS55128979A - Video disk and disk reproducer - Google Patents

Video disk and disk reproducer

Info

Publication number
JPS55128979A
JPS55128979A JP3612179A JP3612179A JPS55128979A JP S55128979 A JPS55128979 A JP S55128979A JP 3612179 A JP3612179 A JP 3612179A JP 3612179 A JP3612179 A JP 3612179A JP S55128979 A JPS55128979 A JP S55128979A
Authority
JP
Japan
Prior art keywords
aural
signal information
tracks
pickup element
disk
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
JP3612179A
Other languages
Japanese (ja)
Inventor
Koichi Minemura
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 JP3612179A priority Critical patent/JPS55128979A/en
Priority to GB8009724A priority patent/GB2048547B/en
Priority to US06/134,324 priority patent/US4392160A/en
Priority to DE3011969A priority patent/DE3011969C2/en
Publication of JPS55128979A publication Critical patent/JPS55128979A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/44—Styli, e.g. sapphire, diamond
    • G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/7605—Television signal recording on discs or drums
    • 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
    • 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
    • H04N9/802—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving processing of the sound 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
    • H04N9/80—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
    • H04N9/8211—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 the additional signal being a sound signal
    • H04N9/8222—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 the additional signal being a sound signal using frequency division multiplex
    • 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
    • H04N9/8355—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 the sound carriers being frequency multiplexed between the luminance carrier and the chrominance carrier

Abstract

PURPOSE:To decrease the number of tracks as well as enhance the quality of the aural signal by recording the aural signal information and the video signal information which are modulated with the different frequencies in the different tracks. CONSTITUTION:Electrode 152 of stylus 15 functioning as the pickup element is set to width l1 or so which covers over video signal information track TR1 and aural signal information track TR2. Accordingly, the signals picked up are separated into the aural and video signal information each through aural and video information filter circuits 26 and 27, and then compared with each other at differential amplifier circuit 32 after rectification. And then the differential component is extracted, and the output of the differential component is applied to track compensator 33 to give the control to the pickup element. As a result, the compensation is given so that the pickup element may always ensure the steady tracing for both tracks.
JP3612179A 1979-03-27 1979-03-27 Video disk and disk reproducer Pending JPS55128979A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP3612179A JPS55128979A (en) 1979-03-27 1979-03-27 Video disk and disk reproducer
GB8009724A GB2048547B (en) 1979-03-27 1980-03-21 Video disc and playback system therefore
US06/134,324 US4392160A (en) 1979-03-27 1980-03-26 Playback system for video disk having plural information tracks
DE3011969A DE3011969C2 (en) 1979-03-27 1980-03-27 Video disc and device for playing such

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3612179A JPS55128979A (en) 1979-03-27 1979-03-27 Video disk and disk reproducer

Publications (1)

Publication Number Publication Date
JPS55128979A true JPS55128979A (en) 1980-10-06

Family

ID=12460940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3612179A Pending JPS55128979A (en) 1979-03-27 1979-03-27 Video disk and disk reproducer

Country Status (1)

Country Link
JP (1) JPS55128979A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0628952A2 (en) * 1993-06-08 1994-12-14 Matsushita Electric Industrial Co., Ltd. Optical disk, and information recording/reproduction apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0628952A2 (en) * 1993-06-08 1994-12-14 Matsushita Electric Industrial Co., Ltd. Optical disk, and information recording/reproduction apparatus
US5648954A (en) * 1993-06-08 1997-07-15 Matsushita Electric Industrial Co., Ltd. Optical disk using land and groove tracks
EP0628952A3 (en) * 1993-06-08 1997-11-05 Matsushita Electric Industrial Co., Ltd. Optical disk, and information recording/reproduction apparatus
US5872750A (en) * 1993-06-08 1999-02-16 Matsushita Electric Industrial Co., Ltd. Optical disk, and information recording/reproduction apparatus
US5920540A (en) * 1993-06-08 1999-07-06 Matsushita Electric Industrial Co., Ltd. Optical disk having address information in lands and grooves, and an information recording/reproduction method
US6021101A (en) * 1993-06-08 2000-02-01 Matsushita Electric Industrial Co., Ltd. Optical disk, and information recording/reproduction apparatus

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