JPS55161452A - Tone ringer - Google Patents

Tone ringer

Info

Publication number
JPS55161452A
JPS55161452A JP6961079A JP6961079A JPS55161452A JP S55161452 A JPS55161452 A JP S55161452A JP 6961079 A JP6961079 A JP 6961079A JP 6961079 A JP6961079 A JP 6961079A JP S55161452 A JPS55161452 A JP S55161452A
Authority
JP
Japan
Prior art keywords
output
tone
ringing tone
microcomputer
call 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.)
Granted
Application number
JP6961079A
Other languages
Japanese (ja)
Other versions
JPS5831786B2 (en
Inventor
Tatsuo Sawada
Isao Kawashima
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP54069610A priority Critical patent/JPS5831786B2/en
Publication of JPS55161452A publication Critical patent/JPS55161452A/en
Publication of JPS5831786B2 publication Critical patent/JPS5831786B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Abstract

PURPOSE:To making the sound valume and the tone color of ringing tone variable by using a microcomputer in the tone ringer of a telephone set. CONSTITUTION:The call signal coming to connection terminal 4 is detected by call signal detecting circuit 1 and is input to microcomputer 5. On a basis of the program in memory 8 and the state of ringing tone select switch 10, the generation program of ringing tone to be output is executed, and digitized data of ringing tone is output from output terminal 11. This data is output from sounder 3 through digital/analogue converter 12, low-pass filter 13, and amplifier 14.
JP54069610A 1979-06-04 1979-06-04 tone ringer Expired JPS5831786B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54069610A JPS5831786B2 (en) 1979-06-04 1979-06-04 tone ringer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54069610A JPS5831786B2 (en) 1979-06-04 1979-06-04 tone ringer

Publications (2)

Publication Number Publication Date
JPS55161452A true JPS55161452A (en) 1980-12-16
JPS5831786B2 JPS5831786B2 (en) 1983-07-08

Family

ID=13407785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54069610A Expired JPS5831786B2 (en) 1979-06-04 1979-06-04 tone ringer

Country Status (1)

Country Link
JP (1) JPS5831786B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57180259A (en) * 1981-04-28 1982-11-06 Fujitsu Ltd Ringer tone generator
JPS57206149A (en) * 1981-06-12 1982-12-17 Meisei Electric Co Ltd Trunk line-based incoming displaying system of key telephone device
JPS5991766A (en) * 1982-11-18 1984-05-26 Iwatsu Electric Co Ltd Tone ringer system
JPS60153250A (en) * 1984-01-20 1985-08-12 Matsushita Electric Ind Co Ltd Telephone set

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015082674A (en) * 2013-10-21 2015-04-27 アイホン株式会社 Intercom system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53136409A (en) * 1977-05-02 1978-11-29 Nippon Telegr & Teleph Corp <Ntt> Audible tone generator for terminal equipment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53136409A (en) * 1977-05-02 1978-11-29 Nippon Telegr & Teleph Corp <Ntt> Audible tone generator for terminal equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57180259A (en) * 1981-04-28 1982-11-06 Fujitsu Ltd Ringer tone generator
JPS57206149A (en) * 1981-06-12 1982-12-17 Meisei Electric Co Ltd Trunk line-based incoming displaying system of key telephone device
JPS5991766A (en) * 1982-11-18 1984-05-26 Iwatsu Electric Co Ltd Tone ringer system
JPS60153250A (en) * 1984-01-20 1985-08-12 Matsushita Electric Ind Co Ltd Telephone set

Also Published As

Publication number Publication date
JPS5831786B2 (en) 1983-07-08

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