JPS5724173A - Video signal processing device - Google Patents

Video signal processing device

Info

Publication number
JPS5724173A
JPS5724173A JP9970480A JP9970480A JPS5724173A JP S5724173 A JPS5724173 A JP S5724173A JP 9970480 A JP9970480 A JP 9970480A JP 9970480 A JP9970480 A JP 9970480A JP S5724173 A JPS5724173 A JP S5724173A
Authority
JP
Japan
Prior art keywords
signal
band
component
high band
noise
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
JP9970480A
Other languages
Japanese (ja)
Inventor
Tetsuo Sakai
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 JP9970480A priority Critical patent/JPS5724173A/en
Publication of JPS5724173A publication Critical patent/JPS5724173A/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

Landscapes

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

Abstract

PURPOSE:To increase S/N and to achive excellent video quality, by separating the band of a video signal at least into three frequency bands and adding a high band component to a low band component obtained from a band separation means among the signal processing obtained from a plurality of signal processing means. CONSTITUTION:When a signal is inputted to an input terminal 11, a signal from a low pass filter 12 is a low component (e). A signal from a middle range filter 13 is introduced as an intermediate component (a). An output signal from a high band filter 14 is introduced as high band component (c). The output signal from a band pass filter 13 is inputted to a limiter circuit 15a and outputted as a signal (b). That is, limit is imposed to a noise greater in spectrum in comparison with the video signal and noise is reduced and outputted. The output signal from the high band filter 14 is inputted to a limiter circuit 16 to be a signal (d) and output is made with reduced noise. Thus, especially intermediate and high band components which give visual hindrance in noise is remarkably attenuated for output.
JP9970480A 1980-07-21 1980-07-21 Video signal processing device Pending JPS5724173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9970480A JPS5724173A (en) 1980-07-21 1980-07-21 Video signal processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9970480A JPS5724173A (en) 1980-07-21 1980-07-21 Video signal processing device

Publications (1)

Publication Number Publication Date
JPS5724173A true JPS5724173A (en) 1982-02-08

Family

ID=14254441

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9970480A Pending JPS5724173A (en) 1980-07-21 1980-07-21 Video signal processing device

Country Status (1)

Country Link
JP (1) JPS5724173A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60178778A (en) * 1983-11-13 1985-09-12 エルシント　リミテツド Image intensifying method and device
JPH024367U (en) * 1988-06-20 1990-01-11
WO1997024803A1 (en) * 1995-12-27 1997-07-10 Sanyo Electric Co., Ltd. Noise removing circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60178778A (en) * 1983-11-13 1985-09-12 エルシント　リミテツド Image intensifying method and device
JPH024367U (en) * 1988-06-20 1990-01-11
WO1997024803A1 (en) * 1995-12-27 1997-07-10 Sanyo Electric Co., Ltd. Noise removing circuit
US6728381B1 (en) * 1995-12-27 2004-04-27 Sanyo Electric Co., Ltd. Noise reducing circuit

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