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. 10, 1995
Filed:
Aug. 30, 1993
Applicant:
Inventors:
Richard P Timmons, Forest, VA (US);
Lanh T Trinh, Carlsbad, CA (US);
Assignee:
Hughes Aircraft Company, Los Angeles, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03G / ;
U.S. Cl.
CPC ...
330279 ; 330284 ; 330289 ; 330129 ; 455126 ;
Abstract
A method and apparatus for controlling the output power level of an amplifier that is highly insensitive to temperature variations. The method intentionally shuts down the amplifier for a very short period of time in order to reveal the detector diode's thermally induced error voltage. This voltage is then stored for a subsequent subtraction from the total detected voltage after the amplifier is turned back on. The detector diode is therefore compensated against itself to obtain a higher level of detection accuracy.