JPS5240042A - Low-frequency narrow-band filter - Google Patents

Low-frequency narrow-band filter

Info

Publication number
JPS5240042A
JPS5240042A JP11560975A JP11560975A JPS5240042A JP S5240042 A JPS5240042 A JP S5240042A JP 11560975 A JP11560975 A JP 11560975A JP 11560975 A JP11560975 A JP 11560975A JP S5240042 A JPS5240042 A JP S5240042A
Authority
JP
Japan
Prior art keywords
low
band filter
frequency narrow
signal
detection circuit
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
JP11560975A
Other languages
Japanese (ja)
Inventor
Yoshinori Masuda
Kanji Yoshikawa
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 JP11560975A priority Critical patent/JPS5240042A/en
Publication of JPS5240042A publication Critical patent/JPS5240042A/en
Pending legal-status Critical Current

Links

Landscapes

  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE: The nf0 detection circuit is installed along with pulse signal f0 detection circuit to perform a comparison between f0 comparison signal and output pulse row signal. As a result, the output voltage whose input signal is only f0 can be obtained.
COPYRIGHT: (C)1977,JPO&Japio
JP11560975A 1975-09-26 1975-09-26 Low-frequency narrow-band filter Pending JPS5240042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11560975A JPS5240042A (en) 1975-09-26 1975-09-26 Low-frequency narrow-band filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11560975A JPS5240042A (en) 1975-09-26 1975-09-26 Low-frequency narrow-band filter

Publications (1)

Publication Number Publication Date
JPS5240042A true JPS5240042A (en) 1977-03-28

Family

ID=14666867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11560975A Pending JPS5240042A (en) 1975-09-26 1975-09-26 Low-frequency narrow-band filter

Country Status (1)

Country Link
JP (1) JPS5240042A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3132377A1 (en) * 1981-08-17 1983-06-30 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang DIGITAL FREQUENCY DISCRIMINATOR

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3132377A1 (en) * 1981-08-17 1983-06-30 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang DIGITAL FREQUENCY DISCRIMINATOR

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