Sean S Chen

US Patent:

7646726, Jan 12, 2010

Filed:

Jun 9, 2005

Appl. No.:

11/149439

Inventors:

Yongdong Zhao - Pleasanton CA, US
Sean Chen - Sunnyvale CA, US
Zesen Chen - Pleasanton CA, US
Shih-Chung Tom Soon - Dublin CA, US
Holly Chen - San Ramon CA, US

Assignee:

AT&T Intellectual Property 1, L.P. - Reno NV

International Classification:

H04J 1/16
H04L 12/28

US Classification:

370252, 370392

Abstract:

A system is disclosed for detecting packetization delay of packets in a network. The system includes a router to receive at least one packet containing data. A detection system, which is in communication with the router, extracts a codec information and a packet length information from the packet. A management system, which is in communication with the router, receives the codec information and the packet length information and determines packetization delay based on the codec information and the packet length information.

US Patent:

7773503, Aug 10, 2010

Filed:

Jun 9, 2005

Appl. No.:

11/148654

Inventors:

Yongdong Zhao - Pleasanton CA, US
Shih-Chung Tom Soon - Dublin CA, US
Sean Chen - Sunnyvale CA, US
Zesen Chen - Pleasanton CA, US
Wenge Chen - Pleasanton CA, US

Assignee:

AT&T Intellectual Property I, L.P. - Reno NV

International Classification:

H04J 1/16

US Classification:

370229, 370237, 370352, 37039521, 37039541, 370468, 37911407, 37922107

Abstract:

VoIP traffic bandwidth through a router port is controlled so that it does not exceed a predetermined bandwidth to ensure a desired quality of service for all VoIP calls routed through the port. Information of a packet received by the port is extracted from a packet header. The information includes source and destination addresses and port numbers as well as the bandwidth used by the packet. If the packet is from an existing call, the packet is routed and the time the packet was received is updated. If the packet is from a new call, it is determined whether the port has sufficient bandwidth to route the new call. If the port has sufficient bandwidth, the packet is routed, bandwidth is allotted for subsequent packets from the new call, and the port information is updated to accept the subsequent packets. If the port does not have sufficient bandwidth, the packet is dropped.

US Patent:

7818775, Oct 19, 2010

Filed:

Dec 21, 2005

Appl. No.:

11/316537

Inventors:

Zesen Chen - Pleasanton CA, US
Peter Chou - San Ramon CA, US
Sean Chen - Sunnyvale CA, US
Brian Gonsalves - Antioch CA, US

Assignee:

AT&T Intellectual Property I, L.P. - Reno NV

International Classification:

H04N 7/173

US Classification:

725134, 725119, 725120, 725115

Abstract:

Various embodiments of the disclosed subject matter provide methods and systems to record broadcast programming for at least one television channel for a period of time, wherein the recording is performed upstream from subscribers in a television distribution system, and further including after the period of time, keeping recorded programming by request from at least one subscriber. And further wherein the request is for at least one television program contained in the recorded programming or for a time window for a particular channel. According to another embodiment a subscriber requests that broadcast programming be saved for the subscriber upstream from the subscriber in a television distribution system, and wherein the subscriber may request the programming be saved for later viewing by the subscriber between the time the programming was broadcast and a later point in time.

US Patent:

7983176, Jul 19, 2011

Filed:

Sep 16, 2005

Appl. No.:

11/228134

Inventors:

Zesen Chen - Pleasanton CA, US
Peter Chou - San Ramon CA, US
Sean Chen - Sunnyvale CA, US
Yongdong Zhao - Pleasanton CA, US

Assignee:

AT&T Intellectual Property I, LP - Atlanta GA

International Classification:

H04J 3/14

US Classification:

370247, 370244, 370250, 370393, 3703951

Abstract:

A system and method are disclosed for monitoring communications of an individual in a packet network. A system that incorporates teachings of the present disclosure may include, for example, a network monitor having a communications interface coupled to a packet network, and a controller. The controller can be programmed to receive a request from a third party to monitor communications associated with an individual, convey to the third party information monitored on a group of one or more permanent virtual circuits (PVCs) of the packet network associated with the individual, detect an update in the group of one or more PVCs, determine new set of one or more PVCs associated with the individual, and convey to the third party information monitored from the new set of one or more PVCs.

US Patent:

8087059, Dec 27, 2011

Filed:

Sep 9, 2010

Appl. No.:

12/878052

Inventors:

Zesen Chen - Pleasanton CA, US
Peter Chou - San Ramon CA, US
Sean Chen - Sunnyvale CA, US
Brian Gonsalves - Antioch CA, US

Assignee:

AT&T Intellectual Property I, L.P. - Atlanta GA

International Classification:

H04N 7/173

US Classification:

725134, 725119, 725120, 725115

Abstract:

Various embodiments of the disclosed subject matter provide methods and systems to record broadcast programming for at least one television channel for a period of time, wherein the recording is performed upstream from subscribers in a television distribution system, and further including after the period of time, keeping recorded programming by request from at least one subscriber. And further wherein the request is for at least one television program contained in the recorded programming or for a time window for a particular channel. According to another embodiment a subscriber requests that broadcast programming be saved for the subscriber upstream from the subscriber in a television distribution system, and wherein the subscriber may request the programming be saved for later viewing by the subscriber between the time the programming was broadcast and a later point in time.

US Patent:

8474003, Jun 25, 2013

Filed:

Nov 28, 2011

Appl. No.:

13/305270

Inventors:

Zesen Chen - Pleasanton CA, US
Peter Chou - San Ramon CA, US
Sean Chen - Sunnyvale CA, US
Brian Gonsalves - Antioch CA, US

Assignee:

AT&T Intellectual Property I, LP - Atlanta GA

International Classification:

H04N 7/173

US Classification:

725134, 725142

Abstract:

Various embodiments of the disclosed subject matter provide methods and systems to record broadcast programming for at least one television channel for a period of time, wherein the recording is performed upstream from subscribers in a television distribution system, and further including after the period of time, keeping recorded programming by request from at least one subscriber. And further wherein the request is for at least one television program contained in the recorded programming or for a time window for a particular channel. According to another embodiment a subscriber requests that broadcast programming be saved for the subscriber upstream from the subscriber in a television distribution system, and wherein the subscriber may request the programming be saved for later viewing by the subscriber between the time the programming was broadcast and a later point in time.

US Patent:

20070143813, Jun 21, 2007

Filed:

Dec 21, 2005

Appl. No.:

11/316066

Inventors:

Zesen Chen - Pleasanton CA, US
Peter Chou - San Ramon CA, US
Sean Chen - Sunnyvale CA, US
Brian Gonsalves - Antioch CA, US
Donald Smith - San Ramon CA, US

International Classification:

H04N 7/173
H04N 7/16

US Classification:

725134000, 725142000, 725089000

Abstract:

Various embodiments of the disclosed subject matter provide methods and systems to store a policy specifying at least one rule relating to recording, storage or delivery of broadcast programming to a consumer of such programming, and to record, store or deliver broadcast programming in response to at least one of the rules in the policy. According to another example embodiment, a method and system provide for a subscriber requesting that at least one broadcast television program be saved for the subscriber upstream from the subscriber in a television distribution system, and further that the at least one program offered to the subscriber for saving is determined based on a policy established for the at least program. According to another example embodiment a system provides at least one computing device including a computer program to control the recording or delivery of at least one broadcast television program in accordance with a policy established to control the recording or delivery of the broadcast television program.

US Patent:

20130263196, Oct 3, 2013

Filed:

May 24, 2013

Appl. No.:

13/902072

Inventors:

Peter Chou - San Ramon CA, US
Sean Chen - Sunnyvale CA, US
Brian Gonsalves - Antioch CA, US

Assignee:

AT&T Intellectual Property I, LP - Atlanta GA

International Classification:

H04N 21/262

US Classification:

725103

Abstract:

Various embodiments of the disclosed subject matter provide methods and systems to record broadcast programming for at least one television channel for a period of time, wherein the recording is performed upstream from subscribers in a television distribution system, and further including after the period of time, keeping recorded programming by request from at least one subscriber. And further wherein the request is for at least one television program contained in the recorded programming or for a time window for a particular channel. According to another embodiment a subscriber requests that broadcast programming be saved for the subscriber upstream from the subscriber in a television distribution system, and wherein the subscriber may request the programming be saved for later viewing by the subscriber between the time the programming was broadcast and a later point in time.