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FR2714784B1 - Amplified listening telephone handset for the hearing impaired. - Google Patents

Amplified listening telephone handset for the hearing impaired.

Info

Publication number
FR2714784B1
FR2714784B1 FR9400141A FR9400141A FR2714784B1 FR 2714784 B1 FR2714784 B1 FR 2714784B1 FR 9400141 A FR9400141 A FR 9400141A FR 9400141 A FR9400141 A FR 9400141A FR 2714784 B1 FR2714784 B1 FR 2714784B1
Authority
FR
France
Prior art keywords
telephone handset
hearing impaired
amplified listening
listening telephone
amplified
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
FR9400141A
Other languages
French (fr)
Other versions
FR2714784A1 (en
Inventor
Kopferschmitt Lucien
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
Priority to FR9400141A priority Critical patent/FR2714784B1/en
Publication of FR2714784A1 publication Critical patent/FR2714784A1/en
Application granted granted Critical
Publication of FR2714784B1 publication Critical patent/FR2714784B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04M1/02—Constructional features of telephone sets
    • H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
FR9400141A 1994-01-04 1994-01-04 Amplified listening telephone handset for the hearing impaired. Expired - Fee Related FR2714784B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9400141A FR2714784B1 (en) 1994-01-04 1994-01-04 Amplified listening telephone handset for the hearing impaired.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9400141A FR2714784B1 (en) 1994-01-04 1994-01-04 Amplified listening telephone handset for the hearing impaired.

Publications (2)

Publication Number Publication Date
FR2714784A1 FR2714784A1 (en) 1995-07-07
FR2714784B1 true FR2714784B1 (en) 1996-01-26

Family

ID=9458855

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9400141A Expired - Fee Related FR2714784B1 (en) 1994-01-04 1994-01-04 Amplified listening telephone handset for the hearing impaired.

Country Status (1)

Country Link
FR (1) FR2714784B1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2002504A (en) * 1932-09-26 1935-05-28 George A Graham Telephone handset switch
US2574887A (en) * 1949-04-30 1951-11-13 Automatic Elect Lab Substation circuit having manual control of receiving and transmitting efficiency
US2808461A (en) * 1954-03-18 1957-10-01 Wheeler Insulated Wire Company Handset
DE2705216A1 (en) * 1977-02-08 1978-08-10 Ernst Moeckl Radiotelephone set handset of elongated configuration - has controls used during operation conveniently placed within reach of thumb when held normally in hand
US4257121A (en) * 1977-05-26 1981-03-17 General Aviation Electronics, Inc. Portable transceiver
FR2570239B1 (en) * 1984-09-07 1988-07-15 Centre Nat Rech Scient EARPHONE, TELEPHONE HANDSET AND HEADSET FOR CORRECTING INDIVIDUAL HEARING DEFICIENCIES
FR2687036B1 (en) * 1992-02-04 1994-03-18 Alcatel Business Systems MANUALLY CONTROLLED DEVICE FOR AT LEAST TWO DIFFERENT FUNCTIONS.

Also Published As

Publication number Publication date
FR2714784A1 (en) 1995-07-07

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Legal Events

Date Code Title Description
ST Notification of lapse