| US 7,468,992 B2 | ||
| Voice and data exchange over a packet based network with DTMF | ||
| Wilf LeBlanc, Vancouver (Canada); and Shawn Stevenson, Surrey (Canada) | ||
| Assigned to Broadcom Corporation, Irvine, Calif. (US) | ||
| Filed on Jul. 24, 2006, as Appl. No. 11/459,556. | ||
| Application 11/459556 is a continuation of application No. 09/692554, filed on Oct. 19, 2000, granted, now 7,082,143, filed on Jul. 25, 2006. | ||
| Application 09/692554 is a continuation of application No. 09/522185, filed on Mar. 09, 2000. | ||
| Application 09/522185 is a continuation in part of application No. 09/454219, filed on Dec. 09, 1999, granted, now 6,882,711, filed on Apr. 19, 2005. | ||
| Prior Publication US 2007/0091873 A1, Apr. 26, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. H04J 3/12 (2006.01) | ||
| U.S. Cl. 370—526 [370/352; 379/283] | 31 Claims |
| 1. One or more circuits for detecting at least one tone in a voice packet comprising one or more voice frames, the one or
more circuits comprising:
at least one interface for communicating over a packet network;
at least one processor operably coupled to the at least one interface, and operable to:
receive a voice packet over the network;
sample a portion of each of the one or more voice frames in the received voice packet; and
detect from the sampled portion of the one or more voice frames whether the one or more voice frames comprises the at least
one tone, wherein the detection of the at least one tone is delayed until the last voice frame of the voice packet is processed.
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