JPS53145507A - Pb signal transmitting system - Google Patents

Pb signal transmitting system

Info

Publication number
JPS53145507A
JPS53145507A JP6087877A JP6087877A JPS53145507A JP S53145507 A JPS53145507 A JP S53145507A JP 6087877 A JP6087877 A JP 6087877A JP 6087877 A JP6087877 A JP 6087877A JP S53145507 A JPS53145507 A JP S53145507A
Authority
JP
Japan
Prior art keywords
signal transmitting
transmitting system
signal
producing
well
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
JP6087877A
Other languages
Japanese (ja)
Inventor
Haruyuki Yoshino
Shinji Goto
Wataru Naito
Hideo Okazaki
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP6087877A priority Critical patent/JPS53145507A/en
Publication of JPS53145507A publication Critical patent/JPS53145507A/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
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies

Abstract

PURPOSE:To realize an LSI formation as well as high economical performance by producing the PB signal with use of a digital circuit.
JP6087877A 1977-05-25 1977-05-25 Pb signal transmitting system Pending JPS53145507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6087877A JPS53145507A (en) 1977-05-25 1977-05-25 Pb signal transmitting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6087877A JPS53145507A (en) 1977-05-25 1977-05-25 Pb signal transmitting system

Publications (1)

Publication Number Publication Date
JPS53145507A true JPS53145507A (en) 1978-12-18

Family

ID=13155066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6087877A Pending JPS53145507A (en) 1977-05-25 1977-05-25 Pb signal transmitting system

Country Status (1)

Country Link
JP (1) JPS53145507A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4831808A (en) * 1971-08-27 1973-04-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4831808A (en) * 1971-08-27 1973-04-26

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