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. 28, 2012
Filed:
May. 05, 2011
Jacob Lee Dahle, Tucson, AZ (US);
Robert Allen Hutchins, Tucson, AZ (US);
Sedat Oelcer, Kilchberg, CH;
Larry Leeroy Tretter, Tucson, AZ (US);
Jacob Lee Dahle, Tucson, AZ (US);
Robert Allen Hutchins, Tucson, AZ (US);
Sedat Oelcer, Kilchberg, CH;
Larry LeeRoy Tretter, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system according to one embodiment includes an analog input for receiving an analog signal; a variable gain amplifier coupled to the analog input; a first gain control circuit coupled to the variable gain amplifier for controlling the gain of the analog signal; an analog to digital converter for converting the analog signal to a digital signal; a first gain error generation circuit for generating a first gain error signal based on an output of the analog to digital converter, the first gain error signal or derivative thereof being received by the first gain control circuit; and a second gain error generation circuit for generating a second gain error signal based on the digital signal, the second gain error signal or derivative thereof being received by the first gain control circuit, wherein the first gain control circuit uses at least one of the gain error signals to control the gain of the analog signal.