BR7902755A - TELEPHONE DEVICE WITH EASY FOR "HANDS FREE" - Google Patents

TELEPHONE DEVICE WITH EASY FOR "HANDS FREE"

Info

Publication number
BR7902755A
BR7902755A BR7902755A BR7902755A BR7902755A BR 7902755 A BR7902755 A BR 7902755A BR 7902755 A BR7902755 A BR 7902755A BR 7902755 A BR7902755 A BR 7902755A BR 7902755 A BR7902755 A BR 7902755A
Authority
BR
Brazil
Prior art keywords
easy
telephone device
hands free
hands
free
Prior art date
Application number
BR7902755A
Other languages
Portuguese (pt)
Inventor
H Wiedmann
Original Assignee
Int Standard Electric 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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of BR7902755A publication Critical patent/BR7902755A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
BR7902755A 1978-05-09 1979-05-07 TELEPHONE DEVICE WITH EASY FOR "HANDS FREE" BR7902755A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782820096 DE2820096A1 (en) 1978-05-09 1978-05-09 Telephone instrument with remote listening unit - uses earphones with radio receiver and transmitter in instrument modulated by speech signal

Publications (1)

Publication Number Publication Date
BR7902755A true BR7902755A (en) 1979-11-27

Family

ID=6038886

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7902755A BR7902755A (en) 1978-05-09 1979-05-07 TELEPHONE DEVICE WITH EASY FOR "HANDS FREE"

Country Status (2)

Country Link
BR (1) BR7902755A (en)
DE (1) DE2820096A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3042610A1 (en) * 1980-11-12 1982-06-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt PARTICIPANTS INTERCOM
DE3723261A1 (en) * 1986-11-10 1988-05-11 Temco Japan TELEPHONE SET WITH EAR MICROPHONE
DE59301601D1 (en) * 1993-05-14 1996-03-21 Alcatel Nv Hand-held radio telephone with a separate speaker
US7310072B2 (en) 1993-10-22 2007-12-18 Kopin Corporation Portable communication display device
US5881156A (en) * 1995-06-19 1999-03-09 Treni; Michael Portable, multi-functional, multi-channel wireless conference microphone
US6486862B1 (en) 1996-10-31 2002-11-26 Kopin Corporation Card reader display system
US6545654B2 (en) 1996-10-31 2003-04-08 Kopin Corporation Microdisplay for portable communication systems
US6677936B2 (en) 1996-10-31 2004-01-13 Kopin Corporation Color display system for a camera
CA2265145C (en) * 1999-03-10 2002-06-18 Cotron Corporation Communication system for telephone

Also Published As

Publication number Publication date
DE2820096A1 (en) 1979-11-15

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