Zhi Li

7768935, Aug 3, 2010

Apr 12, 2006

11/403510

Canhui Ou - Danville CA, US
Mung Chiang - Princeton NJ, US
Zhi Li - San Ramon CA, US
Orestis Manthoulis - Sausalito CA, US
Xiaochuan Yi - San Ramon CA, US
Kaiyan Chen - Pleasanton CA, US

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

G01R 31/08

370252, 370229, 370258, 370238

Various embodiments of the disclosed subject matter provide methods and systems to generate node-disjoint routing paths from a root node to each node in a network node set, identify potential intermediate office node (IO) candidate pairs from the generated node-disjoint routing paths, generate a per central office node (CO) serving cost estimate for each IO candidate pair, and identify a low cost IO candidate pair having at least two node-disjoint paths to the root node without traversing nodes along a diverse path between the low cost IO candidate pair and subtending CO nodes.

7814521, Oct 12, 2010

Apr 25, 2007

11/789696

Canhui Ou - Danville CA, US
Zhi Li - San Ramon CA, US
Yali Liu - Davis CA, US

ATT Knowledge Venturers, L.P. - Reno NV

H04N 7/10
H04N 7/173
G06F 15/16

725 96, 725 97, 725 34

A method is disclosed for distributing advertising data in an internet protocol television (IPTV) system, the method including dividing a plurality of end user devices in the IPTV system into K advertising groups; multicasting J advertising data multicast groups to end user devices in J advertising groups having a percentile ranking above or equal to a predetermined percentile ranking; and unicasting advertising data channels for actively viewed IPTV channels being viewed by other end users.

7921212, Apr 5, 2011

Oct 14, 2008

12/251130

Jian Li - San Ramon CA, US
Raghvendra Savoor - Walnut Creek CA, US
Zhi Li - Martinez CA, US

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

G06F 15/173

709226, 709223, 709224

Example methods and apparatus to allocate bandwidth between video and non-video services in access networks are disclosed. An example system comprises a customer-premises device, a digital subscriber line access multiplexer (DSLAM) to transmit to the customer-premises device a signal having a non-video portion and a video portion, a usage monitor at the customer-premises device to monitor a usage of the video portion and to send a parameter representative of the usage of the video portion to the DSLAM, and a policy manager at the DSLAM to adjust at the DSLAM a bandwidth allocation between the video portion and the non-video portion based on the parameter.

8037505, Oct 11, 2011

Jan 30, 2006

11/343804

Canhui Ou - Darriville CA, US
Steven Gemelos - Cupertino CA, US
Zhi Li - San Ramon CA, US

AT&T Intellectual Property I, LP - Atlanta GA

H04N 7/173
H04N 9/00
G06F 3/00
G06Q 30/00

725 91, 725 9, 725 14, 725 39, 725 86, 725 87, 725 92, 725100, 725104, 705 1444, 705 1452, 705 1453, 705 1455

Various embodiments of the disclosed subject matter provide methods and systems to automatically identify popular television programs based on the viewing of broadcast television programs by at least some of the subscribers of a television distribution system. One or more of the popular television programs identified are stored and offered to one or more of the subscribers on-demand. Subscribers can obtain delivery of at least one of the stored popular television programs for viewing on a subscriber television.

8068584, Nov 29, 2011

Oct 26, 2006

11/588858

Xidong Wu - Livermore CA, US
Zhi Li - San Ramon CA, US

AT&T Intellectual Property I, LP - Atlanta GA

H04M 1/24
H04M 3/08
H04M 3/22

379 104, 379 103

A method for selecting a profile for a digital subscriber line is disclosed, the method including collecting code violation data for a plurality of digital subscriber lines, identifying a group of problem lines in the plurality of digital subscriber lines, modeling estimated code violations for each of a group profiles for each line in the group of problem lines and selecting one of the group of profiles. A system is disclosed for performing the method.

8091109, Jan 3, 2012

Dec 18, 2007

11/958525

Jian Li - San Ramon CA, US
Zhi Li - Martinez CA, US
Sun-Uk Park - Union City CA, US

AT&T Intellectual Property I, LP - Atlanta GA

H04N 7/173

725 94, 725 93, 725 95, 725 96

A method for redirecting video content includes receiving a video signal at the set-top box and decoding the video signal to produce unrendered video data. The unrendered video data is encoded and provided to the remote device via a wide area network. By encoding unrendered, rather than rendered, video data for transmission to the remote device, the need for an encoding device external to the set-top box is obviated.

8107981, Jan 31, 2012

Dec 22, 2009

12/645092

Jungsub Byun - San Ramon CA, US
Zhi Li - San Ramon CA, US
Raghvendra Savoor - Martinez CA, US

AT&T Mobility II LLC - Atlanta GA

H04W 88/02

455466

An interference management system of a wireless network provider using geographic data and network information to recommend and/or facilitate transfer of services to an alternative connection.

8233488, Jul 31, 2012

Nov 14, 2007

11/940137

Jian Livescu - San Ramon CA, US
Raghvendra Savoor - Walnut Creek CA, US
Zhi Li - Martinez CA, US

AT&T Intellectual Property I, LP - Reno NV

H04L 12/28
H04J 3/16

37039531, 370465

A method for network address translation (NAT) includes providing a first and a second NAT table. The method further includes receiving a network packet and classifying the network packet based on a type of network traffic. Additionally, an entry is added to the first NAT table based on the classification of the network packet.