JPS6436175A - Video intermediate frequency signal processing circuit - Google Patents

Video intermediate frequency signal processing circuit

Info

Publication number
JPS6436175A
JPS6436175A JP19170087A JP19170087A JPS6436175A JP S6436175 A JPS6436175 A JP S6436175A JP 19170087 A JP19170087 A JP 19170087A JP 19170087 A JP19170087 A JP 19170087A JP S6436175 A JPS6436175 A JP S6436175A
Authority
JP
Japan
Prior art keywords
intermediate frequency
video intermediate
pass filter
band pass
frequency signal
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
JP19170087A
Other languages
Japanese (ja)
Inventor
Junichi Momotake
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 JP19170087A priority Critical patent/JPS6436175A/en
Publication of JPS6436175A publication Critical patent/JPS6436175A/en
Pending legal-status Critical Current

Links

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE:To suppress abnormity of an AFT output voltage due to a characteristic of a band pass filter by using the band pass filter having a selectivity symmetrical with respect to the center frequency of a video intermediate frequency signal. CONSTITUTION:The video intermediate frequency signal passes through a band pass filter 1a having a symmetrical selectivity with respect to its center frequency and its output is led to an automatic frequency control circuit 3. Thus, the signal not affected by the characteristic of the band pass filter is given to an automatic frequency control circuit and the abnormity in an output of the automatic frequency control circuit due to a minute input or noise at no input is suppressed.
JP19170087A 1987-07-30 1987-07-30 Video intermediate frequency signal processing circuit Pending JPS6436175A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19170087A JPS6436175A (en) 1987-07-30 1987-07-30 Video intermediate frequency signal processing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19170087A JPS6436175A (en) 1987-07-30 1987-07-30 Video intermediate frequency signal processing circuit

Publications (1)

Publication Number Publication Date
JPS6436175A true JPS6436175A (en) 1989-02-07

Family

ID=16279023

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19170087A Pending JPS6436175A (en) 1987-07-30 1987-07-30 Video intermediate frequency signal processing circuit

Country Status (1)

Country Link
JP (1) JPS6436175A (en)

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