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. 19, 2010
Filed:
Dec. 08, 2006
Kyu-min Kang, Daejon, KR;
Sang-sung Choi, Daejon, KR;
Kwang-roh Park, Daejon, KR;
Sang-in Cho, Daejon, KR;
Sung-woo Choi, Daejon, KR;
Cheol-ho Shin, Daejon, KR;
Kyu-Min Kang, Daejon, KR;
Sang-Sung Choi, Daejon, KR;
Kwang-Roh Park, Daejon, KR;
Sang-In Cho, Daejon, KR;
Sung-Woo Choi, Daejon, KR;
Cheol-Ho Shin, Daejon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A rake receiver for DS-CDMA UWB system and a DS-CDMA receiver having the same are provided. The rake receiver includes: a channel estimator for estimating a channel having a predetermined chip duration by using a synchronization acquisition sequence; a tracking module for detecting a channel variation and adjusting a synchronization position value when the channel variation is detected; a first switch for selecting one of an output value of an analog-to-digital converter and an output value of a correlator and outputting the selected value; a second switch for selecting one of the output value of the analog-to-digital converter and the output value of the correlator; and a plurality of demodulators having a parallel processing structure to demodulate received signals by using the channel estimation value inputted from the channel estimator, the synchronization position value stored by the tracking module, and an output value of the second switch.