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:
Dec. 20, 2011
Filed:
May. 21, 2008
Shr-cheng LI, Taipei, TW;
Hsien-chang Liu, Nantou County, TW;
Yun-chang Chang, Hsinchu, TW;
An-bang Chen, Taipei, TW;
Shr-Cheng Li, Taipei, TW;
Hsien-Chang Liu, Nantou County, TW;
Yun-Chang Chang, Hsinchu, TW;
An-Bang Chen, Taipei, TW;
Mediatek Inc., Science-Based Industrial Park, Hsin-Chu, TW;
Abstract
An authorization system of a navigation device includes a first identification (ID) module and a second ID module. The first ID module is arranged to perform authorization for a first portion of the navigation device, and the second ID module is arranged to perform authorization for a second portion of the navigation device. The first and the second ID modules perform bidirectional authorization of the first and the second portions, and further determine behavior of the navigation device according to a result of the bidirectional authorization. An associated authorization method for controlling the navigation device is further provided.