The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 02, 1999

Filed:

Sep. 10, 1996
Applicant:
Inventor:

Takeo Onda, Fujimi, JP;

Assignee:

Baldwin-Japan, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455 66 ; 455575 ; 455 90 ; 455568 ;
Abstract

A communication apparatus includes a plurality of transmitter-receivers operatively coupled together so that they are simultaneously communicatable over-the-air with one another by way of an interexchange repeater module, wherein one of such transmitter-receivers comes with a display device for providing information to the user, and a telephone connector for connecting the transmitter-receiver to the public telephone communication network. A sound-shielded headset is employed in the transmitter-receiver. This headset includes an audio input/output section with a microphone, speakers and the like, and a transmitter/receiver function section for executing signal processing tasks required for communications. Upon reception of a telephone signal, the transmitter-receiver is connected to the telephone connector by means of a cable-wiring, optical coupling or radio-wave coupling scheme providing voice communications with the outside parties. In case where the telephone connector is equipped with a known telephone set, voice communications will be available by entry of phone numbers over either external public lines or extension lines.


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