JPS5453923A - Noise eliminating circuit - Google Patents

Noise eliminating circuit

Info

Publication number
JPS5453923A
JPS5453923A JP12054977A JP12054977A JPS5453923A JP S5453923 A JPS5453923 A JP S5453923A JP 12054977 A JP12054977 A JP 12054977A JP 12054977 A JP12054977 A JP 12054977A JP S5453923 A JPS5453923 A JP S5453923A
Authority
JP
Japan
Prior art keywords
signal
video
circuit
noise
linear
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
JP12054977A
Other languages
Japanese (ja)
Other versions
JPS6142909B2 (en
Inventor
Susumu Nishikawa
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP12054977A priority Critical patent/JPS5453923A/en
Publication of JPS5453923A publication Critical patent/JPS5453923A/en
Publication of JPS6142909B2 publication Critical patent/JPS6142909B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Picture Signal Circuits (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE: To obtain the circuit less in S/N depreciation, by enabling to reject noise surely from the video signal regradless of the movement of picture, in the circuit rejecting the noise of TV video signal.
CONSTITUTION: The detection circuits 5a and 5b detecting the minimum difference signal minimizing the absolute value of the difference level signal of plurality between the signal of a plural number of video elements of other field screen corresponding to the vicinity of the video element X of a location of the field screen having video signal and the signal of the video element X of a position are provided, and the non-linear circuits 6A and 6B feeding the minimum value signal of the circuit 5a and 5b and outputting the linear and non-linear output signal depending on the level are provided. The output of the circuts 6A and 6B is fed and added to the synthesizing circuit 8 through the latch circuits 7A and 7B having the delay time for phase compensation. Further, if the level of the minimum difference signal is less than a given number, the arithmetic mean between the signal of the other field screen corresponding to the minimum difference signal and the signal of the video element X is performed with the mean circuit 9, outputting video signal rejecting noise at the output terminals 2
COPYRIGHT: (C)1979,JPO&Japio
JP12054977A 1977-10-07 1977-10-07 Noise eliminating circuit Granted JPS5453923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12054977A JPS5453923A (en) 1977-10-07 1977-10-07 Noise eliminating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12054977A JPS5453923A (en) 1977-10-07 1977-10-07 Noise eliminating circuit

Publications (2)

Publication Number Publication Date
JPS5453923A true JPS5453923A (en) 1979-04-27
JPS6142909B2 JPS6142909B2 (en) 1986-09-24

Family

ID=14789045

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12054977A Granted JPS5453923A (en) 1977-10-07 1977-10-07 Noise eliminating circuit

Country Status (1)

Country Link
JP (1) JPS5453923A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57212883A (en) * 1981-06-25 1982-12-27 Victor Co Of Japan Ltd Noise reduction circuit
JPS57212884A (en) * 1981-06-25 1982-12-27 Victor Co Of Japan Ltd Noise reduction circuit
JPS60197077A (en) * 1984-03-21 1985-10-05 Victor Co Of Japan Ltd Noise reduction circuit of video signal
WO1988007307A1 (en) * 1987-03-20 1988-09-22 Sony Corporation Circuit for reducing noise

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6350309U (en) * 1986-09-17 1988-04-05

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57212883A (en) * 1981-06-25 1982-12-27 Victor Co Of Japan Ltd Noise reduction circuit
JPS57212884A (en) * 1981-06-25 1982-12-27 Victor Co Of Japan Ltd Noise reduction circuit
JPS60197077A (en) * 1984-03-21 1985-10-05 Victor Co Of Japan Ltd Noise reduction circuit of video signal
WO1988007307A1 (en) * 1987-03-20 1988-09-22 Sony Corporation Circuit for reducing noise
US5005081A (en) * 1987-03-20 1991-04-02 Sony Corporation Method and apparatus for reducing noise in a video signal

Also Published As

Publication number Publication date
JPS6142909B2 (en) 1986-09-24

Similar Documents

Publication Publication Date Title
JPS57131185A (en) Color image pickup device
JPS55164981A (en) Read-in unit
JPS5317393A (en) Commodities delivery detector
JPS5489521A (en) Synthesizer for recording picture signal
JPS5418232A (en) Chromakey tracking device
JPS55655A (en) Symbol display device for video display equipment
JPS5545245A (en) Multiple information signal receiving unit
JPS51134557A (en) Automatic video signal contrast and brightness adjustment
JPS5339831A (en) Video input unit
JPS53148227A (en) Television receiver
JPS55157142A (en) Signal fetching circuit
JPS55130535A (en) Exposure lamp control circuit of copying apparatus
JPS5570167A (en) Scanning picture recording system
JPS52106260A (en) Skip detection circuit of signal reception system
JPS52100829A (en) Correction circuit of television camera output signal
JPS55147789A (en) Dot printer
JPS5545247A (en) Signal receiving unit
JPS564824A (en) Detector of multiple selection in computer system
JPS5786707A (en) Video signal processing device
JPS5453845A (en) Data processing unit using microprogram control system
JPS5481738A (en) Multiplex interruption control circuit
JPS57192186A (en) Picture display device
JPS52141521A (en) Single processor of tv set
JPS5648761A (en) Vertical synchronism detecting circuit
JPS5254328A (en) Beam index-type color television receiver