Wireless intercommunicating system

Details Wireless intercommunicating system Wireless intercommunicating system

1998-05-15

2000-10-24

Tsang, Fan

Telecommunications

Radiotelephone system

Including private cordless extension system

455564, 455550, 455561, 455568, 455461, 379352, 379355, 379359, 379420, H04Q 732, H04Q 730

Patent

active

06138027&

ABSTRACT:
A wireless intercommunicating system includes a base unit connected to a telephone through a telephone line, and a user unit for intercommunication with the base unit by radio signal, the user unit being carried with the user and selectively controlled for use as a radio to receive the broadcasting of a radio broadcast station, or a wireless telephone.

REFERENCES:
patent: 4591661 (1986-05-01), Benedetto et al.
patent: 4979205 (1990-12-01), Haraguchi et al.
patent: 5515420 (1996-05-01), Urasaka et al.
patent: 5802476 (1998-09-01), Nakajima et al.
patent: 5930719 (1999-07-01), Babitch et al.
patent: 5978689 (1999-11-01), Tuoriniemi et al.
patent: 5991637 (1999-11-01), Mack, II et al.

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