Richard A Dunlap

US Patent:

6757363, Jun 29, 2004

Filed:

May 31, 2000

Appl. No.:

09/584933

Inventors:

Richard B. Platt - Allen TX
Mark R. Nelson - Plano TX
Paul S. Hahn - Plano TX
Richard A. Dunlap - Euless TX
Jeffery A. Sanders - Plano TX

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04M 342

US Classification:

379 8811, 379 8817, 379 9317

Abstract:

A system ( ) includes a packet-switched network ( ). A plurality of telephones ( ) are each coupled to the network. A call manager server ( ) is also coupled to the network, in order to interact with the telephones to implement telephony functions. Each of the telephones has the capability to act as an independent network client, by using Internet-compatible protocols to communicate directly with a resource server, without the participation or even the awareness of the call manager server. The resource server may be a local server ( ) coupled directly to the network, or a remote server ( ) coupled to the network through some other network, such as the Internet ( ).

US Patent:

6920205, Jul 19, 2005

Filed:

May 23, 2003

Appl. No.:

10/445165

Inventors:

Paul S. Hahn - Prosper TX, US
Darrick A. Deel - Allen TX, US
Richard A. Dunlap - Euless TX, US
Kelly N. Stearns - Edwardsville IL, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04M011/00

US Classification:

379 8816, 37943306

Abstract:

An apparatus for interactive communications is provided that includes an interactive element, which includes a plurality of keys. One or more of the keys are operable to trigger an audible message to be communicated to an end-user when the end-user depresses and holds a selected one of the keys. The audible message provides descriptive information associated with the selected key.

US Patent:

7058067, Jun 6, 2006

Filed:

Sep 27, 2001

Appl. No.:

09/968402

Inventors:

Robert David Corley - Carrollton TX, US
Richard A. Dunlap - Euless TX, US
Paul S. Hahn - Plano TX, US
Michael H. McClung - Dallas TX, US
Christopher E. Pearce - Addison TX, US
Richard B. Platt - Allen TX, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 12/28

US Classification:

370408

Abstract:

Various aspects of an interactive multimedia system and associated methods. In general, the multimedia system employs central and peripheral hubs that function to provide services to a plurality of clients of a call manager server, or manager subsystem. The hubs and subsystem cooperate to serve requests originating in the plurality of clients. The client-server-client architecture allows for distributed processing and resource management. Redundant connections between the various network subsystems and hubs provide survivability. Each subsystem or hub is provided with the ability to initialize or recover from systemic errors, thereby distributing initialization and recovery. Certain of the distributed resources are capable of being managed from other subsystems, thereby allowing sharing of the resources. An open numbering plan allows efficient call treatment of dialed numbers. Call processing is sharable between multiple manager subsystems.

US Patent:

7099820, Aug 29, 2006

Filed:

Feb 15, 2002

Appl. No.:

10/076931

Inventors:

Pascal H. Huart - Dallas TX, US
Luke K. Surazski - San Jose CA, US
Richard A. Dunlap - Euless TX, US
Jeffrey A. Connelly - Murphy TX, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G10L 11/04
G10L 21/00
G10L 19/00

US Classification:

704207, 704270, 7042701, 704275, 704201, 370252, 370356, 370352

Abstract:

Methods for concealing audible distortions resulting from changes in jitter buffer size include receiving an audio stream, storing the audio stream in a jitter buffer, and determining a pitch period associated with the audio stream. To expand the jitter buffer, a method includes inserting additional audio data that has a duration corresponding to an integer multiple of the pitch period into the audio stream. To contract the jitter buffer, a method includes removing a portion of the audio stream having a duration corresponding to an integer multiple of the pitch period.

US Patent:

7161905, Jan 9, 2007

Filed:

May 3, 2001

Appl. No.:

09/848923

Inventors:

Paul S Hahn - Plano TX, US
Michael E Knappe - Sunnyvale CA, US
Richard A Dunlap - Euless TX, US
Luke K Surazski - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04J 3/14
H04Q 11/04
G10L 11/06
G10L 21/00

US Classification:

370231, 370235, 370252, 370389, 704214, 704226

Abstract:

According to one embodiment of the invention, a method for managing time-sensitive packetized data streams at a receiver includes receiving a time-sensitive packet of a data stream, analyzing an energy level of a payload signal of the packet, and determining whether to drop the packet based on the energy level of the payload signal.

US Patent:

8102766, Jan 24, 2012

Filed:

Nov 2, 2006

Appl. No.:

11/555752

Inventors:

Paul S. Hahn - Plano TX, US
Michael E. Knappe - Sunnyvale CA, US
Richard A. Dunlap - Euless TX, US
Luke K. Surazski - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04J 3/14
H04Q 11/04
G10L 11/06
G10L 21/00

US Classification:

370231, 370235, 370252, 370389, 704214, 704215, 704226

Abstract:

According to one embodiment of the invention, a method for managing time-sensitive packetized data streams at a receiver includes receiving a time-sensitive packet of a data stream, analyzing an energy level of a payload signal of the packet, and determining whether to drop the packet based on the energy level of the payload signal.

US Patent:

20120120797, May 17, 2012

Filed:

Jan 23, 2012

Appl. No.:

13/355945

Inventors:

Paul S. Hahn - Plano TX, US
Michael E. Knappe - Sunnyvale CA, US
Richard A. Dunlap - Euless TX, US
Luke K. Surazski - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 12/26

US Classification:

370230

Abstract:

According to one embodiment of the invention, a method for managing time-sensitive packetized data streams at a receiver includes receiving a time-sensitive packet of a data stream, analyzing an energy level of a payload signal of the packet, and determining whether to drop the packet based on the energy level of the payload signal.

US Patent:

63045761, Oct 16, 2001

Filed:

Sep 30, 1998

Appl. No.:

9/164503

Inventors:

Robert David Corley - Carrollton TX
Richard A. Dunlap - Euless TX
Paul S. Hahn - Plano TX
Michael H. McClung - Dallas TX
Christopher E. Pearce - Addison TX
Richard B. Platt - Allen TX

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04J 324

US Classification:

370408

Abstract:

Various aspects of an interactive multimedia system and associated methods. In general, the multimedia system employs central and peripheral hubs that function to provide services to a plurality of clients of a call manager server, or manager subsystem. The hubs and subsystem cooperate to serve requests originating in the plurality of clients. The client-server-client architecture allows for distributed processing and resource management. Redundant connections between the various network subsystems and hubs provide survivability. Each subsystem or hub is provided with the ability to initialize or recover from systemic errors, thereby distributing initialization and recovery. Certain of the distributed resources are capable of being managed from other subsystems, thereby allowing sharing of the resources. An open numbering plan allows efficient call treatment of dialed numbers. Call processing is sharable between multiple manager subsystems.