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:
Feb. 21, 2012
Filed:
Mar. 08, 2010
Chao-tung Yang, Hsinchu Hsien, TW;
Fu-cheng Wang, Hsinchu Hsien, TW;
Shoufang Chen, Hsinchu Hsien, TW;
Shuo-yuan Hsiao, Hsinchu Hsien, TW;
Chao-Tung Yang, Hsinchu Hsien, TW;
Fu-Cheng Wang, Hsinchu Hsien, TW;
Shoufang Chen, Hsinchu Hsien, TW;
Shuo-Yuan Hsiao, Hsinchu Hsien, TW;
MStar Semiconductor, Inc., Hsinchu Hsien, TW;
Abstract
A signal processing apparatus for a multi-mode satellite positioning system includes a band-pass filter, a local oscillator circuit, a first mixing circuit, a second mixing circuit, an analog-to-digital converter and a baseband circuit. By properly allocating a local frequency, radio frequency (RF) signals of a Global Positioning System (GPS), a Galileo positioning system and a Global Navigation System (GLONASS) are processed via a single signal path to save hardware cost.