JPS57197984A - Correcting device for time base error of video disc player device - Google Patents

Correcting device for time base error of video disc player device

Info

Publication number
JPS57197984A
JPS57197984A JP56083117A JP8311781A JPS57197984A JP S57197984 A JPS57197984 A JP S57197984A JP 56083117 A JP56083117 A JP 56083117A JP 8311781 A JP8311781 A JP 8311781A JP S57197984 A JPS57197984 A JP S57197984A
Authority
JP
Japan
Prior art keywords
signal
time base
horizontal synchronizing
base error
synchronizing 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.)
Granted
Application number
JP56083117A
Other languages
Japanese (ja)
Other versions
JPS634758B2 (en
Inventor
Tsuguhide Sakata
Chohei Hirano
Shigeru Kimoto
Saburou Nakazato
Takeshi Ota
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.)
Akai Electric Co Ltd
Original Assignee
Akai 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 Akai Electric Co Ltd filed Critical Akai Electric Co Ltd
Priority to JP56083117A priority Critical patent/JPS57197984A/en
Publication of JPS57197984A publication Critical patent/JPS57197984A/en
Publication of JPS634758B2 publication Critical patent/JPS634758B2/ja
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
    • H04N5/7605—Television signal recording on discs or drums

Abstract

PURPOSE:To improve jitter and color phase irregularity, by subjecting a chrominance subcarrier low band conversion NTSC signal and a signal, which is obtained by clamping its horizontal synchronizing signal part, to subtraction to detect a periodic speed error corresponding to the time base error. CONSTITUTION:A clamp circuit 18 outputs a signal, which is obtained by clamping the horizontal synchronizing signal part of a chrominance subcarrier low band conversion NTSC signal including a time base error from an FM demodulator 5 in a certain potential, on a basis of the horizontal synchronizing signal from a synchronizing signal separator 6. A subtractor 19 performs the subtraction between the output signal of the circuit 18 and the NTSC signal given directly from the FM demodulator 5. Proper amplitude and frequency characteristic are given to the output signal of the subtractor 19 by an arm stretcher driving circuit 8 to control an arm stretcher provided in a pickup 4. Thus, a stylus 3 is displaced in such tangent direction of a signal track on a video disc 1 that the frequency error becomes zero.
JP56083117A 1981-05-29 1981-05-29 Correcting device for time base error of video disc player device Granted JPS57197984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56083117A JPS57197984A (en) 1981-05-29 1981-05-29 Correcting device for time base error of video disc player device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56083117A JPS57197984A (en) 1981-05-29 1981-05-29 Correcting device for time base error of video disc player device

Publications (2)

Publication Number Publication Date
JPS57197984A true JPS57197984A (en) 1982-12-04
JPS634758B2 JPS634758B2 (en) 1988-01-30

Family

ID=13793253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56083117A Granted JPS57197984A (en) 1981-05-29 1981-05-29 Correcting device for time base error of video disc player device

Country Status (1)

Country Link
JP (1) JPS57197984A (en)

Also Published As

Publication number Publication date
JPS634758B2 (en) 1988-01-30

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