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. 10, 2011
Filed:
Dec. 27, 2006
Che-fu Liang, Taipei County, TW;
Shen-iuan Liu, Taipei, TW;
Gin-kou MA, Hsinchu County, TW;
Tzu-yi Yang, Taichung, TW;
Che-Fu Liang, Taipei County, TW;
Shen-Iuan Liu, Taipei, TW;
Gin-Kou Ma, Hsinchu County, TW;
Tzu-Yi Yang, Taichung, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A frequency synthesizer for generating a plurality of frequencies of a MB-OFDM UWB system is disclosed, wherein the frequencies include first to fourteenth frequencies from low to high and any of the adjacent two frequencies differs by a basic intervallic frequency. The frequency synthesizer includes a phase locked loop generating an initial signal with a frequency equal to the second frequency, an intervallic frequency generator generating first to third intervallic frequencies from low to high and all being integers times the basic intervallic frequency and generating a forth intervallic frequency equal to the basic intervallic frequency, and first to third mixers connected in series, respectively receiving the fourth intervallic frequency, one of the first to third intervallic, and the first intervallic frequency, to respectively generate the first to third frequencies, the fourth to ninth and the thirteenth to fourteenth frequencies, and the tenth to twelfth frequencies.