JPS53123005A - Automatic calling circuit - Google Patents

Automatic calling circuit

Info

Publication number
JPS53123005A
JPS53123005A JP3774777A JP3774777A JPS53123005A JP S53123005 A JPS53123005 A JP S53123005A JP 3774777 A JP3774777 A JP 3774777A JP 3774777 A JP3774777 A JP 3774777A JP S53123005 A JPS53123005 A JP S53123005A
Authority
JP
Japan
Prior art keywords
automatic calling
calling circuit
circuit
automatic
economization
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.)
Granted
Application number
JP3774777A
Other languages
Japanese (ja)
Other versions
JPS6019699B2 (en
Inventor
Susumu Enokido
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP3774777A priority Critical patent/JPS6019699B2/en
Publication of JPS53123005A publication Critical patent/JPS53123005A/en
Publication of JPS6019699B2 publication Critical patent/JPS6019699B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Abstract

PURPOSE:To make the miniaturization and economization of a circuit possible, by enabling one photocoupler to detect a party answer and outgoing-incoming collision.
JP3774777A 1977-04-01 1977-04-01 automatic calling circuit Expired JPS6019699B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3774777A JPS6019699B2 (en) 1977-04-01 1977-04-01 automatic calling circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3774777A JPS6019699B2 (en) 1977-04-01 1977-04-01 automatic calling circuit

Publications (2)

Publication Number Publication Date
JPS53123005A true JPS53123005A (en) 1978-10-27
JPS6019699B2 JPS6019699B2 (en) 1985-05-17

Family

ID=12506060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3774777A Expired JPS6019699B2 (en) 1977-04-01 1977-04-01 automatic calling circuit

Country Status (1)

Country Link
JP (1) JPS6019699B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6238662A (en) * 1985-08-14 1987-02-19 Canon Inc Image transmitter
JPS6350295A (en) * 1986-08-20 1988-03-03 Sanyo Electric Co Ltd Circuit for detecting collision of incoming and outgoing calls

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6238662A (en) * 1985-08-14 1987-02-19 Canon Inc Image transmitter
JPS6350295A (en) * 1986-08-20 1988-03-03 Sanyo Electric Co Ltd Circuit for detecting collision of incoming and outgoing calls
JPH069398B2 (en) * 1986-08-20 1994-02-02 三洋電機株式会社 Incoming / outgoing collision detection circuit

Also Published As

Publication number Publication date
JPS6019699B2 (en) 1985-05-17

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