U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Modular unit headset

Patent 5890074 Issued on March 30, 1999. Estimated Expiration Date: Icon_subject June 27, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3806650

Citizens band cartridge for tape decks
Patent #: 4034164
Issued on: 07/05/1977
Inventor: Westmoland

Remote telephone coupler as for medical emergency data transmission
Patent #: 4097691
Issued on: 06/27/1978
Inventor: Ehrlich ,   et al.

Tape recorder with table computer
Patent #: 4237540
Issued on: 12/02/1980
Inventor: Sato

Combined television receiver/tape recorder/calculator
Patent #: 4396941
Issued on: 08/02/1983
Inventor: Nishimura ,   et al.

Portable cordless telephone transceiver-radio receiver
Patent #: 4591661
Issued on: 05/27/1986
Inventor: Benedetto ,   et al.

Communication headset
Patent #: 4620068
Issued on: 10/28/1986
Inventor: Wieder

Apparatus for telemetry apparatus for reading utility meters
Patent #: 4654662
Issued on: 03/31/1987
Inventor: Van Orsdel

Target tracking transmitter having two levels of power operation
Patent #: 4731869
Issued on: 03/15/1988
Inventor: Farrer

Mobile paging call back system and related method
Patent #: 4747122
Issued on: 05/24/1988
Inventor: Bhagat ,   et al.

More ...

Inventors

Assignee

Application

No. 883809 filed on 06/27/1997

US Classes:

455/558, Card control element455/321, In a single envelope or with common active element (e.g., autodyne)455/349, Sectional or interconnectable (e.g., modules)455/351, Transportable455/575.2Headgear

Examiners

Primary: Vo, Nguyen

Attorney, Agent or Firm

Foreign Patent References

  • 0 426 966 EP. 05/13/1991
  • 0571125A1 EP. 11/13/1993
  • 4136548C1 DE. 09/13/1992
  • 3-151731 JP. 06/13/1991
  • A-2268032 GB. 12/13/1993
  • A-2277841 GB. 11/13/1994
  • WO90/03076 WO. 03/13/1990
  • WO 94/21058 WO. 09/13/1994

International Classes

H04B 001/38
H04M 001/00

Abstract

A modular unit having a telecommunications component, a switching circuit, and a headset link is adapted for connection with a host electronic device. The headset link of the modular unit communicates with a module link in a headset. The headset also contains earphones or a speaker, a microphone, and a control panel in electrical connection with the module link of the headset. The speaker, microphone, and control panel of the headset communicate with the headset link of the modular unit through the module link in the headset. The switching circuit of the modular unit controls whether the headset link of the module is in electrical connection with the telecommunications component of the modular unit or an electronic audio component of the host electronic device.

Other References

  • "AT&T Paradyne Offers PCMCIA Modem For Nokia Portables", Mobile Data Report, Mar. 15, 1993, pp. 4-
PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$18.95more info
 
Sign InRegister
Username  
Password   
forgot password?