JPS5779784A - Memory device - Google Patents

Memory device

Info

Publication number
JPS5779784A
JPS5779784A JP55154896A JP15489680A JPS5779784A JP S5779784 A JPS5779784 A JP S5779784A JP 55154896 A JP55154896 A JP 55154896A JP 15489680 A JP15489680 A JP 15489680A JP S5779784 A JPS5779784 A JP S5779784A
Authority
JP
Japan
Prior art keywords
video signal
color video
signal
frame memory
field
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
JP55154896A
Other languages
Japanese (ja)
Other versions
JPH029757B2 (en
Inventor
Kaichi Tatezawa
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 JP55154896A priority Critical patent/JPS5779784A/en
Publication of JPS5779784A publication Critical patent/JPS5779784A/en
Publication of JPH029757B2 publication Critical patent/JPH029757B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To make excellent compensation, by executing readout so that the phase of a subcarrier signal cincides, in reading out a color video signal before one field from a memory and replacing it with an input color video signal to be compensated. CONSTITUTION:After an analog color video signal applied to an input terminal 2 is converted into a digital coded signal at an A-D converter 3, it is stored in a frame memory 1 via a switching replacement circuit 4, shift register 5, and latch circuit 6. A signal read out from the frame memory 1 is given to an output terminal 24 via a latch circuit 21, shift register 22 and D-A converter 23. A color video signal before one field shifted by 1H at an odd number field and an even number field is read out so that the phase of the subcarrier of the input color video signal coincides in the frame memory 1 and replaced with the input color signal to be compensated.
JP55154896A 1980-11-04 1980-11-04 Memory device Granted JPS5779784A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55154896A JPS5779784A (en) 1980-11-04 1980-11-04 Memory device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55154896A JPS5779784A (en) 1980-11-04 1980-11-04 Memory device

Publications (2)

Publication Number Publication Date
JPS5779784A true JPS5779784A (en) 1982-05-19
JPH029757B2 JPH029757B2 (en) 1990-03-05

Family

ID=15594320

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55154896A Granted JPS5779784A (en) 1980-11-04 1980-11-04 Memory device

Country Status (1)

Country Link
JP (1) JPS5779784A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01215193A (en) * 1988-02-23 1989-08-29 Matsushita Electric Ind Co Ltd Video signal processor
JPH01296893A (en) * 1988-05-25 1989-11-30 Matsushita Electric Ind Co Ltd Video signal processor
JPH04117888A (en) * 1990-09-07 1992-04-17 Matsushita Electric Ind Co Ltd Error correction method for pal system color video signal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5471614A (en) * 1977-11-17 1979-06-08 Sony Corp Signl correcting method of digital video signal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5471614A (en) * 1977-11-17 1979-06-08 Sony Corp Signl correcting method of digital video signal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01215193A (en) * 1988-02-23 1989-08-29 Matsushita Electric Ind Co Ltd Video signal processor
JPH01296893A (en) * 1988-05-25 1989-11-30 Matsushita Electric Ind Co Ltd Video signal processor
JPH04117888A (en) * 1990-09-07 1992-04-17 Matsushita Electric Ind Co Ltd Error correction method for pal system color video signal

Also Published As

Publication number Publication date
JPH029757B2 (en) 1990-03-05

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