Cell phone muting override system

Details Cell phone muting override system Cell phone muting override system

2008-04-22

2008-04-22

Tran, CongVan (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S421000, C455S456100

Reexamination Certificate

active

11511723

ABSTRACT:
The disclosed invention relates to a system for restricting radio frequency transmissions within a restricted area and more particularly to a mechanism for overriding the restriction of radio frequency transmissions within a restricted area using an override mechanism. A restricted area is defined wherein all radio frequency transmissions are restricted. Within the restricted a plurality of cellular telephones is disposed, each with a radio frequency transmitter and a radio frequency receiver. An emergency override is also disposed within the restricted area, the emergency override capable of selectively enabling communications of a selected subset of the cellular telephones disposed within the restricted area.

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