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:
Aug. 10, 2004
Filed:
Jul. 03, 2001
Gary J. Ballantyne, Christchurch, NZ;
Keith Bargroff, San Diego, CA (US);
Paul L. Chan, Encinitas, CA (US);
Jonathan Klaren, San Diego, CA (US);
Charles J. Persico, Rancho Santa Fe, CA (US);
Walter Scott Charles, San Diego, CA (US);
Somphou Sithideth, Spring Valley, CA (US);
Qualcomm Incorporated, San Diego, CA (US);
Abstract
A battery ( ) powers a wireless telephone's power amplifier ( ) through a Switch Mode Power Supply (SMPS) ( ). The SMPS has a capacity lower than the maximum power requirements of the amplifier. When a controller ( ) senses that an amplifier power-requirement threshold has been exceeded, it closes a switch ( ) parallel to the SMPS, allowing power to flow from the battery to the amplifier without passing through the SMPS. This architecture allows the use of a smaller SMPS, and eliminates SMPS-generated noise to the amplifier when the amplifier is least able to tolerate such noise, namely, under high power conditions.