Access control method utilizing a key battery

Details Access control method utilizing a key battery Access control method utilizing a key battery

2006-12-12

2006-12-12

Urban, Edward F. (Department: 2684)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S343100, C455S411000, C455S418000

Reexamination Certificate

active

07149554

ABSTRACT:
An access control system (100) for enabling functionality to a portable communications device includes a battery (120) for providing access to user-agnostic, system-agnostic and radio transceiver-agnostic control data to the portable communications device such as a portable two-way radio transceiver (110). A data connection (150) connected between the battery (120) and the portable two-way radio transceiver (110) provides control data to radio (110) and enables access to a predetermined set of device functions.

REFERENCES:
patent: 5501829 (1996-03-01), Nichols
patent: 5771448 (1998-06-01), Cooper
patent: 5857146 (1999-01-01), Kido
patent: 5904002 (1999-05-01), Emerling et al.
patent: 6128511 (2000-10-01), Irie
patent: 6212410 (2001-04-01), Ishida
patent: 6243596 (2001-06-01), Kikinis
patent: 6522902 (2003-02-01), Nishihara et al.
patent: 6546674 (2003-04-01), Emerling et al.

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