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:
Feb. 05, 2008
Filed:
Apr. 22, 2004
Volker Stefan Gierenz, Aachen, DE;
Hendrik Ten Pierick, Eindhoven, NL;
Volker Stefan Gierenz, Aachen, DE;
Hendrik Ten Pierick, Eindhoven, NL;
NXP B.V., Eindhoven, NL;
Abstract
An automatic gain control circuit has a gain determination circuit (B) which determines a first gain factor (g), and a first gain controller (B) which controls an amplitude of an input signal (S) with the first gain factor (g) to supply a gain controlled signal (S). A processing circuit (B; B, B) with a predetermined limited dynamic range processes the gain controlled (S) to obtain an output signal (S; S). The automatic gain control circuit further comprises a compensation circuit (B) which determines a second gain factor (dg) based on the first gain factor (g) and input parameters (DL, TR, DV) which define a time variation of the second gain factor (dg), and a second gain controller (B; B) which receives the second gain factor (dg) to obtain a compensated output signal (S) that is substantially compensated for an amplitude change of the gain controlled signal (S) due to a change of the first gain factor (g).