JPS56141688A - Color demodulation equipment - Google Patents

Color demodulation equipment

Info

Publication number
JPS56141688A
JPS56141688A JP4489680A JP4489680A JPS56141688A JP S56141688 A JPS56141688 A JP S56141688A JP 4489680 A JP4489680 A JP 4489680A JP 4489680 A JP4489680 A JP 4489680A JP S56141688 A JPS56141688 A JP S56141688A
Authority
JP
Japan
Prior art keywords
signal
switch
switches
switched
discriminator
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
JP4489680A
Other languages
Japanese (ja)
Other versions
JPS6130473B2 (en
Inventor
Noriyuki Sagishima
Teruo Kitani
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4489680A priority Critical patent/JPS56141688A/en
Publication of JPS56141688A publication Critical patent/JPS56141688A/en
Publication of JPS6130473B2 publication Critical patent/JPS6130473B2/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
    • H04N9/44—Colour synchronisation
    • H04N9/465—Synchronisation of the PAL-switch

Landscapes

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

Abstract

PURPOSE:To demodulate an exact R-Y color difference signal without controlling the phase of the line switch of fH/2, by switching the third and fourth signals which can be interlocked and switched, by means of a switching signal generated when the inputs of the discriminator are not matched. CONSTITUTION:The first and second switches 12, 16 which can be interlocked and switched are arranged, a chrominance signal of the PAL color TV signal, and an inverted chrominance signal are provided to the input terminal of the switch 12, and the output of the switch 12 is inputted to the R-Y demodulator 6. Also, the third and fourth switches 24, 28 which can be interlocked and switched are arranged, a chrominance subcarrier of R-Y axis, and a chrominance subcarrier of -(R-Y) axis are provided to inputs of the switches 24, 28, the output of the switch 24 is provided to the demodulator 6, and a burst signal contained in the TV signal is provided to the phase discriminator 17. Also, a horizontal pulse and an inverted horizontal pulse are provided to an input of the switch 28, the switches 28, 16 are cascaded, and the output of the switch 16 is provided to the discriminator 17. When both the inputs of the discriminator 17 are not matched, the switches 12, 16 are switched by generating a switching signal from the FF13.
JP4489680A 1980-04-04 1980-04-04 Color demodulation equipment Granted JPS56141688A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4489680A JPS56141688A (en) 1980-04-04 1980-04-04 Color demodulation equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4489680A JPS56141688A (en) 1980-04-04 1980-04-04 Color demodulation equipment

Publications (2)

Publication Number Publication Date
JPS56141688A true JPS56141688A (en) 1981-11-05
JPS6130473B2 JPS6130473B2 (en) 1986-07-14

Family

ID=12704237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4489680A Granted JPS56141688A (en) 1980-04-04 1980-04-04 Color demodulation equipment

Country Status (1)

Country Link
JP (1) JPS56141688A (en)

Also Published As

Publication number Publication date
JPS6130473B2 (en) 1986-07-14

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