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. 23, 2010
Filed:
Mar. 12, 2004
John W. Haim, Baldwin, NY (US);
Fryderyk Tyra, Huntington Station, NY (US);
Louis J. Guccione, East Chester, NY (US);
Timothy A. Axness, Collegeville, PA (US);
Donald M. Grieco, Manhassett, NY (US);
John W. Haim, Baldwin, NY (US);
Fryderyk Tyra, Huntington Station, NY (US);
Louis J. Guccione, East Chester, NY (US);
Timothy A. Axness, Collegeville, PA (US);
Donald M. Grieco, Manhassett, NY (US);
InterDigital Technology Corporation, Wilmington, DE (US);
Abstract
An automatic gain control (AGC) method according to the present invention applies an initial gain by a digital AGC circuit in a timeslot is determined using a final calculated gain from the same timeslot in the previous frame together with an offset factor. An erase function is activated for a given data sample block when the number of saturated data samples that are detected within the block exceeds a threshold value. The power measurement made by the AGC circuit and used to update the gain is adjusted based on the number of measured data samples that are saturated. These elements provide a gain limiting function and allows limiting of the dynamic range for further signal processing.