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. 05, 2005
Filed:
May. 03, 2001
Paul P. Chominski, San Diego, CA (US);
Jonathan L. Kennedy, Auburn, CA (US);
Lawrence E. Larson, Del Mar, CA (US);
Joshua C. Park, Medford, MA (US);
Paul P. Chominski, San Diego, CA (US);
Jonathan L. Kennedy, Auburn, CA (US);
Lawrence E. Larson, Del Mar, CA (US);
Joshua C. Park, Medford, MA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In a multiple stage transmitter, and analog signal is modulated and mixed to produce a radio frequency output. A separate mixing frequency signal is provided to each stage. A single frequency synthesizer is used rather than a plurality of frequency synthesizers. In a two-stage system, first and second dividers each receive the output of the frequency synthesizer and deliver a mixing signal to the first and second stages respectively. The modulus of each divider may be selected to minimize spurious signals.