JPS6439860A - Telephone set circuit - Google Patents

Telephone set circuit

Info

Publication number
JPS6439860A
JPS6439860A JP19612487A JP19612487A JPS6439860A JP S6439860 A JPS6439860 A JP S6439860A JP 19612487 A JP19612487 A JP 19612487A JP 19612487 A JP19612487 A JP 19612487A JP S6439860 A JPS6439860 A JP S6439860A
Authority
JP
Japan
Prior art keywords
circuit
dial
detecting
state
power source
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
JP19612487A
Other languages
Japanese (ja)
Inventor
Chihiro Kamata
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP19612487A priority Critical patent/JPS6439860A/en
Publication of JPS6439860A publication Critical patent/JPS6439860A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To contrive to realize a long service life of an auxiliary power source, by setting a dial circuit to an operating state, only when an output from a line connection detecting circuit and an output signal from an off-hook operation detecting circuit is received. CONSTITUTION:Only when a line connection detecting circuit 18 for detecting a fact being in a state of receiving an inter-telephone line voltage, and an off- hook operation detecting circuit 20 for detecting a fact that a closing operation to a telephone line is executed has applied an output signal to a control circuit 23 for executing an operation of a dial circuit 7, the dial circuit 7 is subjected to a control of the control circuit 23, and becomes a state that the operation as the dial circuit 7 can be executed. Accordingly, in a state that the dial circuit 7 is not connected to the telephone line, when it becomes an operating state, an auxiliary power source is not consumed by the operation of the dial circuit 7. In such a way, a service life of the auxiliary power source for executing a memory holding operation can be extended.
JP19612487A 1987-08-05 1987-08-05 Telephone set circuit Pending JPS6439860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19612487A JPS6439860A (en) 1987-08-05 1987-08-05 Telephone set circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19612487A JPS6439860A (en) 1987-08-05 1987-08-05 Telephone set circuit

Publications (1)

Publication Number Publication Date
JPS6439860A true JPS6439860A (en) 1989-02-10

Family

ID=16352642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19612487A Pending JPS6439860A (en) 1987-08-05 1987-08-05 Telephone set circuit

Country Status (1)

Country Link
JP (1) JPS6439860A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0676252A2 (en) 1990-12-26 1995-10-11 Kawasaki Jukogyo Kabushiki Kaisha Method of and apparatus for withdrawing strand in horizontal continuous casting installation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0676252A2 (en) 1990-12-26 1995-10-11 Kawasaki Jukogyo Kabushiki Kaisha Method of and apparatus for withdrawing strand in horizontal continuous casting installation

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