JPS56111385A - Ghost removing equipment - Google Patents

Ghost removing equipment

Info

Publication number
JPS56111385A
JPS56111385A JP1433380A JP1433380A JPS56111385A JP S56111385 A JPS56111385 A JP S56111385A JP 1433380 A JP1433380 A JP 1433380A JP 1433380 A JP1433380 A JP 1433380A JP S56111385 A JPS56111385 A JP S56111385A
Authority
JP
Japan
Prior art keywords
ghost
video signal
signal
delay line
tap
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
JP1433380A
Other languages
Japanese (ja)
Inventor
Juichi Takashima
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1433380A priority Critical patent/JPS56111385A/en
Publication of JPS56111385A publication Critical patent/JPS56111385A/en
Pending 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
    • H04N5/211—Ghost signal cancellation

Landscapes

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

Abstract

PURPOSE:To remove noise and obtain a video signal with good quality, by providing two data processing systems corresponding to both the even tap and the odd tap, respectively, of an analog delay line for generating a pseudo-ghost signal. CONSTITUTION:A video signal is input in common to plural taps, respectively, of an analog delay line B, also the weighting voltage is applied by the weighting device 40, a pseudo-ghost signal which is in phase with the ghost signal and has the opposite polarity is generated, it is superposed on the input video signal, and a ghost is removed. The data processing system of memory circuits 27, 28, a shift register circuit 22, etc. of the ghost information generation part in said equipment is provided by dividing it into that which corresponds to an even tap of the delay line B, and that which corresponds to an odd tap, so that they can be switched at every 1 horizontal period. In this way, it is possible to make a video signal good in quality by heightening the frequency component of a noise so that it is removed by the low-pass filter 13.
JP1433380A 1980-02-08 1980-02-08 Ghost removing equipment Pending JPS56111385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1433380A JPS56111385A (en) 1980-02-08 1980-02-08 Ghost removing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1433380A JPS56111385A (en) 1980-02-08 1980-02-08 Ghost removing equipment

Publications (1)

Publication Number Publication Date
JPS56111385A true JPS56111385A (en) 1981-09-03

Family

ID=11858135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1433380A Pending JPS56111385A (en) 1980-02-08 1980-02-08 Ghost removing equipment

Country Status (1)

Country Link
JP (1) JPS56111385A (en)

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