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:
Jan. 30, 2007
Filed:
Jun. 21, 2004
Applicants:
Timothy K. Coffman, Chandler, AZ (US);
Tracy S. Martin, Phoenix, AZ (US);
Michael S. Labelle, Phoenix, AZ (US);
Inventors:
Timothy K. Coffman, Chandler, AZ (US);
Tracy S. Martin, Phoenix, AZ (US);
Michael S. LaBelle, Phoenix, AZ (US);
Assignee:
RF Micro Devices, Inc., Greensboro, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01); H03G 3/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A mobile terminal senses transmitted power in a Gallium Arsenide (GaAs) circuit. The GaAs circuit provides a steady reference voltage through the use of an operational amplifier and feedback circuit. The operational amplifier drives the bases of two transistors to create balanced signals that are then used by a detection circuit.