JPS6471281A - Signal discriminator - Google Patents

Signal discriminator

Info

Publication number
JPS6471281A
JPS6471281A JP62226346A JP22634687A JPS6471281A JP S6471281 A JPS6471281 A JP S6471281A JP 62226346 A JP62226346 A JP 62226346A JP 22634687 A JP22634687 A JP 22634687A JP S6471281 A JPS6471281 A JP S6471281A
Authority
JP
Japan
Prior art keywords
signal
vhs
discriminator
automatic
resistor
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
JP62226346A
Other languages
Japanese (ja)
Inventor
Hitoshi Akamine
Eiji Moro
Hiroyuki Torii
Kuniaki Miura
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
Original Assignee
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 Ltd filed Critical Hitachi Ltd
Priority to JP62226346A priority Critical patent/JPS6471281A/en
Publication of JPS6471281A publication Critical patent/JPS6471281A/en
Pending legal-status Critical Current

Links

Landscapes

  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To discriminate a reproduced FM signal without malfunction by using a HOLD control circuit holding the preceding state when an input signal is a signal having a prescribed threshold value or below and outputting the information of the signal when the level is the threshold value or over. CONSTITUTION:An input signal is inputted to a peaking circuit 1 and given to an automatic signal discriminator 4 after passing through AGC circuits 2, 3. The automatic signal discriminator 4 is added with a signal changeover time constant circuit at the S-VHS side comprising a resistor 15 and a capacitor 13 and a time constant circuit for signal changeover at the VHS side comprising a resistor 16 and a capacitor 14 after the signal comparison and detection. The signal inputted to the automatic signal discriminator 4 is subject to comparison and detection of FM spectrum and to which of the S-VHS or VHS system the signal belongs is discriminated and an output signal in matching therewith is outputted via a HOLD control circuit 12.
JP62226346A 1987-09-11 1987-09-11 Signal discriminator Pending JPS6471281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62226346A JPS6471281A (en) 1987-09-11 1987-09-11 Signal discriminator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62226346A JPS6471281A (en) 1987-09-11 1987-09-11 Signal discriminator

Publications (1)

Publication Number Publication Date
JPS6471281A true JPS6471281A (en) 1989-03-16

Family

ID=16843725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62226346A Pending JPS6471281A (en) 1987-09-11 1987-09-11 Signal discriminator

Country Status (1)

Country Link
JP (1) JPS6471281A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9575434B2 (en) 2014-10-27 2017-02-21 Canon Kabushiki Kaisha Remanufacturing method of developer accommodating unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9575434B2 (en) 2014-10-27 2017-02-21 Canon Kabushiki Kaisha Remanufacturing method of developer accommodating unit

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