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.:

US 7984516 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 19, 2011

Filed:

Aug. 31, 2006
Applicant:

David P. Bresemann, Austin, TX (US);

Inventor:

David P. Bresemann, Austin, TX (US);

Assignee:

Silicon Laboratories Inc., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/04 (2006.01); G06F 17/30 (2006.01); G06F 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

In one embodiment, the present invention includes a method for executing an application to perform voice over Internet protocol (VoIP) telephony, requesting a hardware key from a line interface device, comparing the hardware key to a software key associated with the application, and enabling the VoIP telephony if the keys match.


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