JPS6390351U - - Google Patents

Info

Publication number
JPS6390351U
JPS6390351U JP18453686U JP18453686U JPS6390351U JP S6390351 U JPS6390351 U JP S6390351U JP 18453686 U JP18453686 U JP 18453686U JP 18453686 U JP18453686 U JP 18453686U JP S6390351 U JPS6390351 U JP S6390351U
Authority
JP
Japan
Prior art keywords
photocoupler
ringer
signal
smoothing capacitor
output 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
JP18453686U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP18453686U priority Critical patent/JPS6390351U/ja
Publication of JPS6390351U publication Critical patent/JPS6390351U/ja
Pending legal-status Critical Current

Links

JP18453686U 1986-11-28 1986-11-28 Pending JPS6390351U (enExample)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18453686U JPS6390351U (enExample) 1986-11-28 1986-11-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18453686U JPS6390351U (enExample) 1986-11-28 1986-11-28

Publications (1)

Publication Number Publication Date
JPS6390351U true JPS6390351U (enExample) 1988-06-11

Family

ID=31132307

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18453686U Pending JPS6390351U (enExample) 1986-11-28 1986-11-28

Country Status (1)

Country Link
JP (1) JPS6390351U (enExample)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54105412A (en) * 1978-02-06 1979-08-18 Hitachi Ltd Detection circuit for call signal
JPS593658B2 (ja) * 1975-04-11 1984-01-25 松下電器産業株式会社 ミズセイギヨキ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS593658B2 (ja) * 1975-04-11 1984-01-25 松下電器産業株式会社 ミズセイギヨキ
JPS54105412A (en) * 1978-02-06 1979-08-18 Hitachi Ltd Detection circuit for call signal

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