JPS6485429A - Noise reducing circuit - Google Patents

Noise reducing circuit

Info

Publication number
JPS6485429A
JPS6485429A JP24305987A JP24305987A JPS6485429A JP S6485429 A JPS6485429 A JP S6485429A JP 24305987 A JP24305987 A JP 24305987A JP 24305987 A JP24305987 A JP 24305987A JP S6485429 A JPS6485429 A JP S6485429A
Authority
JP
Japan
Prior art keywords
noise reduction
coefficient
subtractor
output component
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
JP24305987A
Other languages
Japanese (ja)
Inventor
Kazuya Matsuo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP24305987A priority Critical patent/JPS6485429A/en
Publication of JPS6485429A publication Critical patent/JPS6485429A/en
Pending legal-status Critical Current

Links

Landscapes

  • Noise Elimination (AREA)

Abstract

PURPOSE:To obtain an output signal with desired noise reduction and less waveform deterioration by providing noise reduction operation comprising a feedback means to a feed forward means of the noise reduction used in a conventional system. CONSTITUTION:A limiter 10 is a limit means limiting the amplitude of an output component Sc' of a subtractor 3, a coefficient device 11 is a coefficient means setting an output component of the limiter 10 to a coefficient K3, and a subtractor 12 subtracts an output component from the coefficient device 11 from the input original signal (video signal) Si from an input terminal 1. In adding the circuits as above, an LPF 2 being an extraction means receives an output signal of the subtractor 12. Thus, a large noise reduction effect comes from the low frequency side, and the residual noise just after edge at large amplitude is reduced and high waveform reproducibility is attained by the noise circuit.
JP24305987A 1987-09-28 1987-09-28 Noise reducing circuit Pending JPS6485429A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24305987A JPS6485429A (en) 1987-09-28 1987-09-28 Noise reducing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24305987A JPS6485429A (en) 1987-09-28 1987-09-28 Noise reducing circuit

Publications (1)

Publication Number Publication Date
JPS6485429A true JPS6485429A (en) 1989-03-30

Family

ID=17098190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24305987A Pending JPS6485429A (en) 1987-09-28 1987-09-28 Noise reducing circuit

Country Status (1)

Country Link
JP (1) JPS6485429A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5564095A (en) * 1994-09-30 1996-10-08 Comsat Corporation RFI suppression by cascading nonlinear devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5564095A (en) * 1994-09-30 1996-10-08 Comsat Corporation RFI suppression by cascading nonlinear devices

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