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. 05, 2008
Filed:
Dec. 20, 2004
Applicants:
Juinn-horng Deng, Pingjhen, TW;
Kuang-shyr Wu, Taoyuan Hsien, TW;
Yu-min Chuang, Hsinchu, TW;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/00 (2006.01); H04K 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A time domain spreading method and apparatus for a UWB receiver are provided. Wherein, a series of received symbol signals are received by the UWB receiver, and transformed by the fast Fourier transform to obtain a series of transformed signals Y(m) according to one of the received symbol signals. Y(m)=Y(m)+jY(m), and m is a positive integer more than zero. The real part and imaginary part of the transferred signals are exchanged and the exchanged signals are inversely outputted to obtain a plurality of despreading received data signals X(m), and X(m)=Y(−m)+jY(−m).