JPS57109486A - Time base error compensation device - Google Patents

Time base error compensation device

Info

Publication number
JPS57109486A
JPS57109486A JP55186503A JP18650380A JPS57109486A JP S57109486 A JPS57109486 A JP S57109486A JP 55186503 A JP55186503 A JP 55186503A JP 18650380 A JP18650380 A JP 18650380A JP S57109486 A JPS57109486 A JP S57109486A
Authority
JP
Japan
Prior art keywords
circuit
storage device
signal
constitution
converter
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
JP55186503A
Other languages
Japanese (ja)
Inventor
Tetsuo Senba
Kiyoshi Sawayu
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
Priority to JP55186503A priority Critical patent/JPS57109486A/en
Publication of JPS57109486A publication Critical patent/JPS57109486A/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
    • H04N9/87—Regeneration of colour television signals
    • H04N9/89—Time-base error compensation
    • H04N9/896—Time-base error compensation using a digital memory with independent write-in and read-out clock generators

Abstract

PURPOSE:To simplify the constitution of a device, by using an auxiliary storage device for a velocity error signal as a digital storage device, compensating a velocity error stably and with high accuracy, and using an A-D converter in common with a main storage device. CONSTITUTION:An input video signal from an input terminal 10 is applied to a write clock generating circuit 17, horizontal and vertical synchronizing signals and a burst signal are outputted from a syncronization separating circuit of this circuit 17, and also a write clock signal is outputted. This clock signal is supplied to an A-D converter 12, and also is applied to a main storage device 13 and a digita auxiliary storage device 19 through a controlling circuit 18. Also, a velocity error signal at every 1 horizontal period related to a reproducing burst signal from the circuit 17 is applied to a voltage-current converting circuit 20, and its output is provided to a switching device 11 for inputting a video signals, through a switch 21, and is controlled and switched by the circuit 18. An output of this switch 11 is digitized by the converter 12, is provided to the devices 13, 19, respectively, and the constitution of a time base error compensation device is simplified.
JP55186503A 1980-12-26 1980-12-26 Time base error compensation device Pending JPS57109486A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55186503A JPS57109486A (en) 1980-12-26 1980-12-26 Time base error compensation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55186503A JPS57109486A (en) 1980-12-26 1980-12-26 Time base error compensation device

Publications (1)

Publication Number Publication Date
JPS57109486A true JPS57109486A (en) 1982-07-07

Family

ID=16189626

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55186503A Pending JPS57109486A (en) 1980-12-26 1980-12-26 Time base error compensation device

Country Status (1)

Country Link
JP (1) JPS57109486A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5210022A (en) * 1975-07-15 1977-01-26 Sony Corp Equipment for correcting a time axis error
JPS52122036A (en) * 1976-02-19 1977-10-13 Quantel Ltd Video synchronizer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5210022A (en) * 1975-07-15 1977-01-26 Sony Corp Equipment for correcting a time axis error
JPS52122036A (en) * 1976-02-19 1977-10-13 Quantel Ltd Video synchronizer

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