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:
Nov. 22, 2011
Filed:
Oct. 24, 2007
Earl Mccune, Santa Clara, CA (US);
Gary DO, San Jose, CA (US);
Wayne Lee, San Mateo, CA (US);
Panasonic Corporation, Osaka, JP;
Abstract
A transmission apparatus has two modes of power amplifier operation, in which modeis inherently accurate, modeis inherently less accurate, and measurement of a power amplifier output from modeis used to correct a power amplifier output in mode. Modemay be a compressed mode and modemay be a non-compressed mode. The apparatus may include a power controller that provides overlapping scaling factor sets for modesandand controls transmission power using the scaling factor sets. Upon a mode transition, the controller uses the overlapping scaling factors and changes the scaling factor set for the mode of a destination of the transition based on actual measurement representative of transmission power, for example, by carrying out power alignment loop operations. A cellular mobile device may include such transmission apparatus. A polar modulation transmitter is also disclosed.