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.
Patent No.:
Date of Patent:
Jan. 29, 2008
Filed:
Jul. 09, 2001
Michael Barclay, Swallowcliffe, GB;
Brian C. Barnes, Round Rock, TX (US);
Terry L. Cole, Austin, TX (US);
Rodney Schmidt, Austin, TX (US);
David W. Smith, Cedar Park, TX (US);
Geoffrey S. Strongin, Austin, TX (US);
Michael Barclay, Swallowcliffe, GB;
Brian C. Barnes, Round Rock, TX (US);
Terry L. Cole, Austin, TX (US);
Rodney Schmidt, Austin, TX (US);
David W. Smith, Cedar Park, TX (US);
Geoffrey S. Strongin, Austin, TX (US);
Advanced Micro Devices, Inc., Austin, TX (US);
Abstract
A method and apparatus for preventing radio communication system access by an unauthorized modem. The apparatus comprises a signal detector that determines if an authorization signal has been received from the base station within a specified period of time. The authorization signal authorizes the apparatus to communicate with the base station. A transmitter transmits information to the base station, and a controller disables the transmitter of the apparatus providing that the authorization signal has not been received within the specified period of time.