JPS5445504A - Numerical display unit of telephone subscriber set - Google Patents

Numerical display unit of telephone subscriber set

Info

Publication number
JPS5445504A
JPS5445504A JP11238077A JP11238077A JPS5445504A JP S5445504 A JPS5445504 A JP S5445504A JP 11238077 A JP11238077 A JP 11238077A JP 11238077 A JP11238077 A JP 11238077A JP S5445504 A JPS5445504 A JP S5445504A
Authority
JP
Japan
Prior art keywords
station
incoming call
dial
incoming
call
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
JP11238077A
Other languages
Japanese (ja)
Inventor
Shigeo Yamazaki
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 JP11238077A priority Critical patent/JPS5445504A/en
Publication of JPS5445504A publication Critical patent/JPS5445504A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/56—Arrangements for indicating or recording the called number at the calling subscriber's set

Abstract

PURPOSE:To make sure the operation at incoming and outgoing call, by performing dial numeral display via the decoder circuit at outgoing call, deliverying the dial signal to the station of extension line, and by displaying the incoming number after detecing the incoming call and discriminating the station or extension line at incoming call. CONSTITUTION:When the telephone set is off-hook, the dial signal is written in the memory circuit 6 and it is code-converted with the push button dial operation and stored to the circuti 6, is dial-number-displayed 9 via the decoder circut 8, 16 and the dial signal is produced 14 with the operation of the dial signal selection switch 3 and it is delivered to the station or extension line. Next, at incoming call, it is detected with the incoming call detection circuit 17 and is controlled with the gate circuit 5 and it is discriminated 18 depending on the station or extension. As a result, the station or extension number generator 19 or 20 is driven, the incoming call number is written in, and it is displayed on th display unit 9. Thus, the misdialing prevention at outgoing call and sure operation at incoming call can be made.
JP11238077A 1977-09-19 1977-09-19 Numerical display unit of telephone subscriber set Pending JPS5445504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11238077A JPS5445504A (en) 1977-09-19 1977-09-19 Numerical display unit of telephone subscriber set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11238077A JPS5445504A (en) 1977-09-19 1977-09-19 Numerical display unit of telephone subscriber set

Publications (1)

Publication Number Publication Date
JPS5445504A true JPS5445504A (en) 1979-04-10

Family

ID=14585219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11238077A Pending JPS5445504A (en) 1977-09-19 1977-09-19 Numerical display unit of telephone subscriber set

Country Status (1)

Country Link
JP (1) JPS5445504A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60254859A (en) * 1984-05-31 1985-12-16 Matsushita Electric Ind Co Ltd Button telephone set with display
JPS6260342A (en) * 1985-09-10 1987-03-17 Rohm Co Ltd Selection signal transmission circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60254859A (en) * 1984-05-31 1985-12-16 Matsushita Electric Ind Co Ltd Button telephone set with display
JPH0212425B2 (en) * 1984-05-31 1990-03-20 Matsushita Electric Ind Co Ltd
JPS6260342A (en) * 1985-09-10 1987-03-17 Rohm Co Ltd Selection signal transmission circuit

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