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:
Nov. 18, 2014
Filed:
Oct. 04, 2011
M. David Hanes, Lewisville, NC (US);
Gonzalo A. Salgueiro, Holly Springs, NC (US);
Herbert M. Wildfeuer, Santa Barbara, CA (US);
Brooks Stevens Read, Concord, MA (US);
M. David Hanes, Lewisville, NC (US);
Gonzalo A. Salgueiro, Holly Springs, NC (US);
Herbert M. Wildfeuer, Santa Barbara, CA (US);
Brooks Stevens Read, Concord, MA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In one implementation, a method for implementing gain control enhancement for modulated communications includes establishing a communication session between a first endpoint and a second endpoint. The communication session involves forwarding a call signal using an initial gain level until a state transition is detected in the communication session at a digital signal processor. The detection may occur in a transmitting gateway associated with the first endpoint or a receiving gateway associated with the second endpoint. The state transition indicates modulated communications, which may include fax, modem, or text telephony. For example, communication session may be fax over IP (FoIP). The call signal is forwarded using an adjusted gain level based on the state transition. The adjusted gain level may be selected to avoid clipping in the call signal.