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, 2006
Filed:
Aug. 27, 2004
Young-deuk Jeon, Seoul, KR;
Seung-wook Lee, Seoul, KR;
Jeong-woo Lee, Seoul, KR;
Joonbae Park, Seoul, KR;
Kyeongho Lee, Seoul, KR;
Young-Deuk Jeon, Seoul, KR;
Seung-Wook Lee, Seoul, KR;
Jeong-Woo Lee, Seoul, KR;
Joonbae Park, Seoul, KR;
Kyeongho Lee, Seoul, KR;
GCT Semiconductor, Inc., San Jose, CA (US);
Abstract
A system and method for filtering signals in a communications system reduces hardware and chip size requirements by selectively connecting a filter along transmitter and receiver paths of a transceiver. In operation, a controller generated signals for connecting the filter along the transmitter path when the transceiver is in transmitter mode and for connecting the filter along the receiver path when the transmitter is in receiver mode. The controller then generates additional signals for setting one or more parameters of the filter based on the path connected, or put differently based on the operational mode of the transceiver. In a variation, the controller sets the parameters of additional elements coupled to the filter as a way of further controlling processing of the transmitter and receiver signals. The system and method are particularly well suited to controlling the filtering of signals at the front-end of the transceiver having a direct-conversion architecture and in general ones performing time-multiplexing applications.