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:
Jul. 26, 2011
Filed:
Nov. 03, 2005
Applicants:
Behzad Razavi, Irvine, CA (US);
Han-chang Kang, Irvine, CA (US);
Turgut Aytur, Plattsburgh, NY (US);
Ran Yan, Irvine, CA (US);
Inventors:
Behzad Razavi, Irvine, CA (US);
Han-Chang Kang, Irvine, CA (US);
Turgut Aytur, Plattsburgh, NY (US);
Ran Yan, Irvine, CA (US);
Assignee:
Realtek Semiconductor Corp., Hsinchu, TW;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
A direct conversion ultrawideband transceiver employing three phase locked loops (PLLs). The PLLs are preferably fixed-frequency PLLs that operate continuously, at different frequencies, with a selected frequency determined by selecting the output of one of the three PLLs. The use of three PLLs is suitable for use in a communication system employing frequency hopping across three bands or sub-bands.