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:
Mar. 11, 2008
Filed:
Apr. 23, 2003
Francis Forest, Lake Villa, IL (US);
Armin Klomsdorf, Libertyville, IL (US);
Ernest Schirmann, Lake Zurich, IL (US);
Robert S. Trocke, Racine, WI (US);
Francis Forest, Lake Villa, IL (US);
Armin Klomsdorf, Libertyville, IL (US);
Ernest Schirmann, Lake Zurich, IL (US);
Robert S. Trocke, Racine, WI (US);
Motorola Inc, Schaumburg, IL (US);
Abstract
An apparatus and method for transmission power amplifier bias control in an enhanced data rate for global system mobile evolution mobile communication device. The apparatus can include a transmitter configured to transmit information on an enhanced data rate for global system mobile evolution network at a first transmitter output power. The transmitter can include a modulator configured to receive an input signal and map information in the input signal to symbols represented by eight phase offsets and a power amplifier configured to provide the first transmitter output power for transmitting the symbols represented by eight phase offsets. The apparatus can also include a controller configured to adjust a first bias condition of the power amplifier to a second bias condition based on a changed parameter of operation related to the data stored in a memory.