JPS5737991A - Reproduction device for color video signal - Google Patents

Reproduction device for color video signal

Info

Publication number
JPS5737991A
JPS5737991A JP11173380A JP11173380A JPS5737991A JP S5737991 A JPS5737991 A JP S5737991A JP 11173380 A JP11173380 A JP 11173380A JP 11173380 A JP11173380 A JP 11173380A JP S5737991 A JPS5737991 A JP S5737991A
Authority
JP
Japan
Prior art keywords
detection
filter
loop
video signal
frequency
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
JP11173380A
Other languages
Japanese (ja)
Other versions
JPS6358436B2 (en
Inventor
Mitsuru Kudo
Himio Nakagawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11173380A priority Critical patent/JPS5737991A/en
Publication of JPS5737991A publication Critical patent/JPS5737991A/en
Publication of JPS6358436B2 publication Critical patent/JPS6358436B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To decrease the number of IC peripheral parts by superposing the phase detection output of an APC loop and the frequency detection output of an AFC loop on each other by one detection filter. CONSTITUTION:The detection output of a phase detector 8 in an APC loop is supplied to one input terminal of a detection filter 22. The frequency detection output of a frequency discriminating circuit 13 in an AFC loop, on the other hand, is supplied to the other input terminal of the detection filter 22. Both the detection outputs are superposed on each other by one detection filter and a VCO15 is controlled by the resulting signal. Consequently, the operations of three conventionally required parts, i.e., a loop filter, an adder and an LPF are performed by only one detection filter 22, so that the number of external IC parts is decreased.
JP11173380A 1980-08-15 1980-08-15 Reproduction device for color video signal Granted JPS5737991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11173380A JPS5737991A (en) 1980-08-15 1980-08-15 Reproduction device for color video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11173380A JPS5737991A (en) 1980-08-15 1980-08-15 Reproduction device for color video signal

Publications (2)

Publication Number Publication Date
JPS5737991A true JPS5737991A (en) 1982-03-02
JPS6358436B2 JPS6358436B2 (en) 1988-11-15

Family

ID=14568792

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11173380A Granted JPS5737991A (en) 1980-08-15 1980-08-15 Reproduction device for color video signal

Country Status (1)

Country Link
JP (1) JPS5737991A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164387A (en) * 1985-01-16 1986-07-25 Matsushita Electric Ind Co Ltd Video signal processing device
JPS62230189A (en) * 1986-03-31 1987-10-08 Toshiba Corp Mislock control circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SPECIFICATION ICCX 198 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164387A (en) * 1985-01-16 1986-07-25 Matsushita Electric Ind Co Ltd Video signal processing device
JPS62230189A (en) * 1986-03-31 1987-10-08 Toshiba Corp Mislock control circuit

Also Published As

Publication number Publication date
JPS6358436B2 (en) 1988-11-15

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