DE3485211D1 - Anordnung zur kontrolle eines muenzfernsprechers. - Google Patents

Anordnung zur kontrolle eines muenzfernsprechers.

Info

Publication number
DE3485211D1
DE3485211D1 DE8484116011T DE3485211T DE3485211D1 DE 3485211 D1 DE3485211 D1 DE 3485211D1 DE 8484116011 T DE8484116011 T DE 8484116011T DE 3485211 T DE3485211 T DE 3485211T DE 3485211 D1 DE3485211 D1 DE 3485211D1
Authority
DE
Germany
Prior art keywords
arrangement
controlling
coin
speaker
coin speaker
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.)
Expired - Fee Related
Application number
DE8484116011T
Other languages
English (en)
Inventor
Paul Edward Crouch
Howard Ng
Joseph John Nahas
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.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
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 American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Application granted granted Critical
Publication of DE3485211D1 publication Critical patent/DE3485211D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • H04M17/023—Circuit arrangements
DE8484116011T 1983-12-30 1984-12-20 Anordnung zur kontrolle eines muenzfernsprechers. Expired - Fee Related DE3485211D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/567,052 US4567325A (en) 1983-12-30 1983-12-30 Controller for a coin telephone set

Publications (1)

Publication Number Publication Date
DE3485211D1 true DE3485211D1 (de) 1991-11-28

Family

ID=24265541

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484116011T Expired - Fee Related DE3485211D1 (de) 1983-12-30 1984-12-20 Anordnung zur kontrolle eines muenzfernsprechers.

Country Status (5)

Country Link
US (1) US4567325A (de)
EP (1) EP0148483B1 (de)
JP (2) JPS60216661A (de)
CA (1) CA1222332A (de)
DE (1) DE3485211D1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606961B1 (fr) * 1986-11-18 1989-04-07 Flonic Sa Dispositif d'initialisation de la taxation pour un poste telephonique public
US4760594A (en) * 1987-09-04 1988-07-26 Reed Jerry K Answer supervision detection unit for pay telephone system
US4926458A (en) * 1988-05-26 1990-05-15 Mars Incorporated Low power control apparatus for a coin operated telephone
US4979208A (en) * 1988-06-29 1990-12-18 Mars Incorporated Method and apparatus for electronic payphone open switch interval management
AU620765B2 (en) * 1988-06-28 1992-02-20 Mars, Incorporated Method and apparatus for electronic payphone open switch interval management
US4896348A (en) * 1988-07-01 1990-01-23 Palco Telecom Inc. Paystation monitor circuit to prevent fraudulent use
US4821313A (en) * 1988-07-01 1989-04-11 Palco Telecom Inc. Paystation transmitter ground detect circuitry
US4985910A (en) * 1989-09-15 1991-01-15 Mars Incorporated Method and apparatus for retrofitting a standard coin operated telephone employing a carbon microphone with a line powered electronic controller
GB2242101B (en) * 1990-03-15 1994-08-31 Mars Inc Telephone signalling
US5896446A (en) * 1996-07-29 1999-04-20 Mars Incorporated Coin operated telephone auditor

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682286A (en) * 1969-07-19 1972-08-08 Georg Prumm Method for electronically checking coins
DE2029751C3 (de) * 1970-06-16 1974-11-07 Adolf 8150 Roggersdorf Hinterstocker Elektronischer Münzprüfer mit einer einzigen Prüfvorrichtung
US3804984A (en) * 1972-01-25 1974-04-16 Teltronics Inc Emergency circuitry for coin telephone
US4039768A (en) * 1976-05-26 1977-08-02 Maley James B O Pay telephone station monitor system
CH596722A5 (de) * 1976-06-15 1978-03-15 Sodeco Compteurs De Geneve
US4105867A (en) * 1977-02-07 1978-08-08 H. R. Electronics Company Control circuit for pay telephones and the like
US4136262A (en) * 1977-09-15 1979-01-23 Communication Equipment And Engineering Co. Telephone paystation
US4196318A (en) * 1978-09-29 1980-04-01 Bell Telephone Laboratories, Incorporated Electronically-switched multifrequency generator for providing tone signaling
JPS5571351A (en) * 1978-11-25 1980-05-29 Tamura Electric Works Ltd Faulty position display-type public telephone set
JPS5574260A (en) * 1978-11-30 1980-06-04 Tamura Electric Works Ltd Public telephone of self-diagnosis type
JPS5845224B2 (ja) * 1979-01-16 1983-10-07 株式会社田村電機製作所 公衆電話機
CH641617A5 (de) * 1979-03-21 1984-02-29 Autelca Ag Ueberwachungsanlage fuer die muenzfernsprecher einer fernsprechanlage.
US4352958A (en) * 1979-12-13 1982-10-05 Bell Telephone Laboratories, Incorporated Electronically-switched multifrequency generator with transducer control
GB2078466B (en) * 1980-06-20 1984-07-04 Plessey Co Ltd Micro-processor controlled coin-box telephone instruments
JPS57143969A (en) * 1981-02-28 1982-09-06 Anritsu Corp Monitoring method for fault of public telephone and fault signal sending circuit and fault signal monitoring circuit
CH652548A5 (de) * 1981-07-23 1985-11-15 Sodeco Compteurs De Geneve Muenzfernsprecher mit einem mikroprozessor.

Also Published As

Publication number Publication date
EP0148483A2 (de) 1985-07-17
JP2548237Y2 (ja) 1997-09-17
EP0148483B1 (de) 1991-10-23
US4567325A (en) 1986-01-28
JPH0720748U (ja) 1995-04-11
EP0148483A3 (en) 1988-05-04
JPS60216661A (ja) 1985-10-30
CA1222332A (en) 1987-05-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: BLUMBACH, KRAMER & PARTNER, 65193 WIESBADEN

8339 Ceased/non-payment of the annual fee