| US 7,596,193 B2 | ||
| Variable bandwidth automatic gain control | ||
| Insung Kang, San Diego, Calif. (US); and Tarun K. Tandon, San Diego, Calif. (US) | ||
| Assigned to VIA Telecom, Inc., San Diego, Calif. (US) | ||
| Filed on Mar. 06, 2006, as Appl. No. 11/369,313. | ||
| Claims priority of provisional application 60/735466, filed on Nov. 09, 2005. | ||
| Prior Publication US 2007/0147556 A1, Jun. 28, 2007 | ||
| Int. Cl. H04L 27/08 (2006.01); H04B 7/00 (2006.01) | ||
| U.S. Cl. 375—345 [455/232.1] | 11 Claims |
| 1. An apparatus for controlling gain in a signal receiver, comprising components configured to:
(a) a variable-gain component that receives and applies a specified gain to an incoming signal, thereby providing a gain-adjusted
signal;
(b) a detector coupled to an output of the variable-gain component that measures strength of the gain-adjusted signal;
(c) a filter, coupled to an output of the detector, that generates a control signal by filtering a signal that is based on
the strength of the gain-adjusted signal, wherein the specified gain is controlled based on the control signal; and
(d) a signal-processing section that processes the gain-adjusted signal to identify information regarding data-packet boundaries;
and
(e) an adjustment module, coupled to the signal-processing section, that alters a parameter of the filter based on the information
regarding data-packet boundaries.
|