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:
Apr. 05, 2005
Filed:
Jul. 25, 2003
Ranjit Gharpurey, Plano, TX (US);
Anuj Batra, Dallas, TX (US);
Jaiganesh Balakrishnan, Dallas, TX (US);
Anand G. Dabak, Plano, TX (US);
Ranjit Gharpurey, Plano, TX (US);
Anuj Batra, Dallas, TX (US);
Jaiganesh Balakrishnan, Dallas, TX (US);
Anand G. Dabak, Plano, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A technique for generating carrier frequencies with fast hopping capability associated with multiband systems for ultra wideband applications. The technique employs a single VCOthat is locked in a PLL. The output of this VCOis divided in the frequency domain. The divided frequencies thus obtained are combined in a single-sideband manner to obtain various other frequencies. The single-sideband combination requires open loop operations such as multiplication and addition or subtraction to implement, and hence is very fast. The VCO center frequency is not disturbed in the process. Since the required frequencies are generated in an open-loop fashion, instead of inside a PLL, the speed is increased by orders of magnitude.