JPS5624881A - Automatic waveform equalizing control system for television signal - Google Patents

Automatic waveform equalizing control system for television signal

Info

Publication number
JPS5624881A
JPS5624881A JP10017379A JP10017379A JPS5624881A JP S5624881 A JPS5624881 A JP S5624881A JP 10017379 A JP10017379 A JP 10017379A JP 10017379 A JP10017379 A JP 10017379A JP S5624881 A JPS5624881 A JP S5624881A
Authority
JP
Japan
Prior art keywords
signal
pulse
horizontal synchronizing
television signal
circuit
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
JP10017379A
Other languages
Japanese (ja)
Other versions
JPS5927551B2 (en
Inventor
Hiroshi Yamada
Koji Aoki
Hiroshi Tokimasa
Kiyohiro Yamazaki
Toru Taniguchi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP54100173A priority Critical patent/JPS5927551B2/en
Publication of JPS5624881A publication Critical patent/JPS5624881A/en
Publication of JPS5927551B2 publication Critical patent/JPS5927551B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Details Of Television Systems (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To avoid the distortion of television signal where no test signal is superimposed, by stopping the automatic waveform equalization through the detection that the test signal is not superimposed on the television signal. CONSTITUTION:The pulse generating circuit 24 picks up the pulse (a0) of the specified part in the test signal superimposed on the vertical blanking period from the horizontal synchronizing signal, forms the clock pulse (f) for readout developed between the period of existing of the pulses (e) and (a0), and the next horizontal synchronizing signal, and the pulse (e) is fed to the NAND circuit 28 and the pulse (f) is to FF32. The circuit 24 inputs the horizontal synchronizing signal to FF36. When the television signal is input to the circuit 28, the signal excluding the pulse for the specified said part is formed, FF36 is set with this signal and reset with the horizontal synchronizing signal. When the output of FF36 is input to FF32, the logic ''1'', ''0'' of output of FF36 is discriminated at the time point of pulse (f) and the output of FF32 is controlled.
JP54100173A 1979-08-08 1979-08-08 Automatic waveform equalization control method for television signals Expired JPS5927551B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54100173A JPS5927551B2 (en) 1979-08-08 1979-08-08 Automatic waveform equalization control method for television signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54100173A JPS5927551B2 (en) 1979-08-08 1979-08-08 Automatic waveform equalization control method for television signals

Publications (2)

Publication Number Publication Date
JPS5624881A true JPS5624881A (en) 1981-03-10
JPS5927551B2 JPS5927551B2 (en) 1984-07-06

Family

ID=14266922

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54100173A Expired JPS5927551B2 (en) 1979-08-08 1979-08-08 Automatic waveform equalization control method for television signals

Country Status (1)

Country Link
JP (1) JPS5927551B2 (en)

Also Published As

Publication number Publication date
JPS5927551B2 (en) 1984-07-06

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