DE3376725D1 - Telephone set with a bidirectional infrared link between handset and fixed module connected to a subscriber's line - Google Patents

Telephone set with a bidirectional infrared link between handset and fixed module connected to a subscriber's line

Info

Publication number
DE3376725D1
DE3376725D1 DE8383402550T DE3376725T DE3376725D1 DE 3376725 D1 DE3376725 D1 DE 3376725D1 DE 8383402550 T DE8383402550 T DE 8383402550T DE 3376725 T DE3376725 T DE 3376725T DE 3376725 D1 DE3376725 D1 DE 3376725D1
Authority
DE
Germany
Prior art keywords
handset
subscriber
line
telephone set
module connected
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
Application number
DE8383402550T
Other languages
English (en)
Inventor
Michel Grandmougin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE3376725D1 publication Critical patent/DE3376725D1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114—Indoor or close-range type systems
    • H04B10/1143—Bidirectional transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/737—Characterised by transmission of electromagnetic waves other than radio waves, e.g. infrared waves
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
DE8383402550T 1982-12-29 1983-12-28 Telephone set with a bidirectional infrared link between handset and fixed module connected to a subscriber's line Expired DE3376725D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8222016A FR2538978B1 (fr) 1982-12-29 1982-12-29 Poste telephonique a liaison infrarouge bidirectionnelle entre combine et module fixe relie a une ligne telephonique

Publications (1)

Publication Number Publication Date
DE3376725D1 true DE3376725D1 (en) 1988-06-23

Family

ID=9280643

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383402550T Expired DE3376725D1 (en) 1982-12-29 1983-12-28 Telephone set with a bidirectional infrared link between handset and fixed module connected to a subscriber's line

Country Status (3)

Country Link
EP (1) EP0115240B1 (de)
DE (1) DE3376725D1 (de)
FR (1) FR2538978B1 (de)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2577369A1 (fr) * 1985-02-11 1986-08-14 Fay Stefan De Installation telephonique a postes sans combine et a combine portatif sans fil
FR2578126B1 (fr) * 1985-02-26 1992-01-03 Lecheviller Jean Pierre Appareil telephonique a borne fixe et combine mobile
GB8522427D0 (en) * 1985-09-10 1985-10-16 Plessey Co Plc Credit transaction arrangments
FR2593656B1 (fr) * 1986-01-28 1994-04-29 Parienti Raoul Procede de communication individuel compact sans fil fonctionnant sur reseau infra-rouge en duplex et son dispositif de mise en oeuvre.
CA1276239C (en) * 1986-10-01 1990-11-13 Arlene J. Harris Cellular mobile radio credit card system
US4890315A (en) * 1987-03-20 1989-12-26 Orion Industries, Inc. Cellular remote station with multiple coupled units
US4777469A (en) * 1987-07-17 1988-10-11 Ultratec, Inc. Public terminal receptacle
US4829561A (en) * 1988-03-25 1989-05-09 Tek Electronics Manufacturing Corporation Apparatus for optically coupling a terminal unit to the public telephone network through a pay telephone instrument and the like
FR2629296B1 (fr) * 1988-03-28 1994-05-06 Schlumberger Industries Systeme de transmission d'informations a pre-paiement
DE69031579T2 (de) * 1989-06-16 1998-03-19 Canon Kk System mit tragbarer Vorrichtung zur Erzeugung eines Telefonrufs
DE69015706T2 (de) * 1989-06-16 1995-06-08 Canon Kk System mit tragbarer Vorrichtung.
US5276733A (en) * 1989-06-16 1994-01-04 Canon Kabushiki Kaisha System utilizing portable device
US5283826A (en) * 1989-06-16 1994-02-01 Canon Kabushiki Kaisha System using a portable call information device
FR2652219A1 (fr) * 1989-09-15 1991-03-22 Communication Conception Team Equipement telephonique.
JPH03198459A (ja) * 1989-12-26 1991-08-29 Canon Inc 通信装置
JP2856263B2 (ja) * 1990-09-07 1999-02-10 富士通株式会社 携帯電話機
US5557662A (en) * 1990-12-24 1996-09-17 Canon Kabushiki Kaisha Communication apparatus capable of utilizing portable device
FR2694464B1 (fr) * 1992-07-31 1994-10-28 Raoul Parienti Système de communication de données bi-directionnelle entre portatifs et télécopieurs et son dispositif de mise en Óoeuvre.
WO1995001700A1 (en) * 1993-07-02 1995-01-12 Dancos Industries Pty. Ltd. Public telephone system with plug-in telephone facility
DE9311289U1 (de) * 1993-07-28 1993-09-09 Siemens Ag Kleines Telekommunikationssystem, insbesondere Heimtelefonsystem
US5778313A (en) 1995-12-08 1998-07-07 Cellexis International, Inc. Pre-paid cellular telephone system
AU3453797A (en) 1996-07-11 1998-02-09 British Telecommunications Public Limited Company Telephone apparatus
WO1998003003A1 (en) * 1996-07-11 1998-01-22 British Telecommunications Public Limited Company Telephone apparatus
US6603835B2 (en) 1997-09-08 2003-08-05 Ultratec, Inc. System for text assisted telephony
US6704563B1 (en) 1998-08-11 2004-03-09 Boston Communications Group, Inc. Systems and methods for prerating costs for a communication event
EP1193957A1 (de) * 2000-09-29 2002-04-03 Abb Research Ltd. System, Kommunikationsgerät und Verfahren zum Versenden von elektronischen Mitteilungen
US7881441B2 (en) 2005-06-29 2011-02-01 Ultratec, Inc. Device independent text captioned telephone service
US8416925B2 (en) 2005-06-29 2013-04-09 Ultratec, Inc. Device independent text captioned telephone service
WO2005081511A1 (en) 2004-02-18 2005-09-01 Ultratec, Inc. Captioned telephone service
US8515024B2 (en) 2010-01-13 2013-08-20 Ultratec, Inc. Captioned telephone service
US11258900B2 (en) 2005-06-29 2022-02-22 Ultratec, Inc. Device independent text captioned telephone service
US20180270350A1 (en) 2014-02-28 2018-09-20 Ultratec, Inc. Semiautomated relay method and apparatus
US10389876B2 (en) 2014-02-28 2019-08-20 Ultratec, Inc. Semiautomated relay method and apparatus
US20180034961A1 (en) 2014-02-28 2018-02-01 Ultratec, Inc. Semiautomated Relay Method and Apparatus
US10878721B2 (en) 2014-02-28 2020-12-29 Ultratec, Inc. Semiautomated relay method and apparatus
US11539900B2 (en) 2020-02-21 2022-12-27 Ultratec, Inc. Caption modification and augmentation systems and methods for use by hearing assisted user

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2046556B (en) * 1978-11-23 1983-05-11 Plessey Co Ltd Telecommunications system incorporating portable communications units
EP0027833A1 (de) * 1979-10-30 1981-05-06 Siemens Aktiengesellschaft Fernsprech-Teilnehmerstation
DE3042610A1 (de) * 1980-11-12 1982-06-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Teilnehmersprechstelleneinrichtung
IT1154048B (it) * 1981-06-09 1987-01-21 Urmet Sud Costr Elett Telefon Perfezionamento ai sistemi ed alle apparecchiature per la telefonia pubblica impiegante apparecchi urbani interurbani dotati di selettore

Also Published As

Publication number Publication date
FR2538978B1 (fr) 1985-05-31
EP0115240A1 (de) 1984-08-08
EP0115240B1 (de) 1988-05-18
FR2538978A1 (fr) 1984-07-06

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee