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:
May. 20, 2003
Filed:
Aug. 14, 2001
Chun Lin Guo, Taichung, TW;
Syncomm Technology Corp., Taoyuan, TW;
Abstract
The invention discloses a phase detection method including a quadrant determining procedure, a first comparison procedure, a second comparison procedure, a coordinate transforming procedure, and a phase computing procedure. A first and a second phase approximate values are obtained in the quadrant determining procedure and the first comparison procedure. A third phase approximate value is obtained in the second comparison procedure and the coordinate transforming procedure. A total phase is computed in the phase computing procedure. Using this method, we does not need to consult look-up tables to determine the phase, thus saving a lot of memory space. The invention also provides a phase detection device.