JPS5635580A - Noise suppressing device for television signal - Google Patents

Noise suppressing device for television signal

Info

Publication number
JPS5635580A
JPS5635580A JP8143880A JP8143880A JPS5635580A JP S5635580 A JPS5635580 A JP S5635580A JP 8143880 A JP8143880 A JP 8143880A JP 8143880 A JP8143880 A JP 8143880A JP S5635580 A JPS5635580 A JP S5635580A
Authority
JP
Japan
Prior art keywords
signal
television signal
suppressing device
noise suppressing
input
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
JP8143880A
Other languages
Japanese (ja)
Other versions
JPS5917580B2 (en
Inventor
Norihiko Fukinuki
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.)
Hitachi Ltd
Kokusai Denki Electric Inc
Original Assignee
Hitachi Denshi KK
Hitachi 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 Hitachi Denshi KK, Hitachi Ltd filed Critical Hitachi Denshi KK
Priority to JP55081438A priority Critical patent/JPS5917580B2/en
Publication of JPS5635580A publication Critical patent/JPS5635580A/en
Publication of JPS5917580B2 publication Critical patent/JPS5917580B2/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)

Abstract

PURPOSE:To suppress the noise by applying the value corresponding to the difference signal between the input TV signal and the 1-frame preceding TV signal to the input TV signal. CONSTITUTION:The TV signal A is applied along with the output signal B of the frame memory 12 to the subtracting circuit 14, and then the difference signal D is delivered. Then the value Z corresponding to the difference signal D is read out of the memory 16. And an operation of A+Z is carried out through the adding circuit 15 to secure an output through the terminal 13.
JP55081438A 1980-06-18 1980-06-18 Television signal noise suppression device Expired JPS5917580B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55081438A JPS5917580B2 (en) 1980-06-18 1980-06-18 Television signal noise suppression device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55081438A JPS5917580B2 (en) 1980-06-18 1980-06-18 Television signal noise suppression device

Publications (2)

Publication Number Publication Date
JPS5635580A true JPS5635580A (en) 1981-04-08
JPS5917580B2 JPS5917580B2 (en) 1984-04-21

Family

ID=13746393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55081438A Expired JPS5917580B2 (en) 1980-06-18 1980-06-18 Television signal noise suppression device

Country Status (1)

Country Link
JP (1) JPS5917580B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57211885A (en) * 1981-06-22 1982-12-25 Victor Co Of Japan Ltd Noise reduction circuit
JPS5844866A (en) * 1981-09-11 1983-03-15 Hitachi Denshi Ltd solid state television camera equipment
JPS6058777A (en) * 1983-09-09 1985-04-04 Fujitsu Ltd Noise eliminating filter
JPS60111581A (en) * 1983-11-19 1985-06-18 Sony Corp Processor of still picture signal
JPS6115483A (en) * 1984-06-30 1986-01-23 Matsushita Electric Ind Co Ltd Video signal processing device
JPS63157576A (en) * 1986-12-22 1988-06-30 Toshiba Corp Noise reducing circuit
JPH01123590A (en) * 1987-11-07 1989-05-16 Mitsubishi Electric Corp Video signal processing circuit
JPH02116176U (en) * 1990-02-28 1990-09-18

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61166449U (en) * 1985-04-03 1986-10-15

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57211885A (en) * 1981-06-22 1982-12-25 Victor Co Of Japan Ltd Noise reduction circuit
JPS5844866A (en) * 1981-09-11 1983-03-15 Hitachi Denshi Ltd solid state television camera equipment
JPS6058777A (en) * 1983-09-09 1985-04-04 Fujitsu Ltd Noise eliminating filter
JPS60111581A (en) * 1983-11-19 1985-06-18 Sony Corp Processor of still picture signal
JPS6115483A (en) * 1984-06-30 1986-01-23 Matsushita Electric Ind Co Ltd Video signal processing device
JPS63157576A (en) * 1986-12-22 1988-06-30 Toshiba Corp Noise reducing circuit
JPH01123590A (en) * 1987-11-07 1989-05-16 Mitsubishi Electric Corp Video signal processing circuit
JPH02116176U (en) * 1990-02-28 1990-09-18

Also Published As

Publication number Publication date
JPS5917580B2 (en) 1984-04-21

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