Philip A Zigoris

US Patent:

8023655, Sep 20, 2011

Filed:

Jun 5, 2008

Appl. No.:

12/134113

Inventors:

Hongxia Jin - San Jose CA, US
Philip Anastasios Zigoris - Santa Cruz CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H04L 9/00

US Classification:

380277, 380 30, 380200, 703 13, 705 52, 726 26

Abstract:

A traitor tracing system generates a hypothesized model of the circumvention device that models a hypothesized set of device keys compromised by the circumvention device. The system iteratively invokes a subset tracing system to identify a compromised device key until substantially all the compromised device keys in the set of compromised device keys are identified so as to disable the circumvention device. A subset tracing system generates a circumvention device model that models behavior of a circumvention device using prior knowledge and The system iteratively selects and applies to the circumvention device a test based on the hypothesized model and the circumvention device model and receives a response from the circumvention device indicating a success of the test in playing protected content on the circumvention device. The system updates the hypothesized model using the received response, the selected test, a current version of the hypothesized model, and a current version of the circumvention device model to focus the test selecting process in determining the device keys obtained from the traitor.

US Patent:

8499040, Jul 30, 2013

Filed:

Jun 4, 2012

Appl. No.:

13/488275

Inventors:

Kent Schoen - San Francisco CA, US
Ning Li - Newark CA, US
Robert Kang Xing Jin - San Francisco CA, US
Philip Anastasios Zigoris - San Francisco CA, US
Jessica Gronski - Menlo Park CA, US
Jordan Walke - Cupertino CA, US
Eric Michel Giovanola - Palo Alto CA, US

Assignee:

Facebook, Inc. - Menlo Park CA

International Classification:

G06F 15/16

US Classification:

709204, 709203, 715753

Abstract:

In one embodiment, a method includes receiving sponsor specifications designating story characteristics; monitoring an organic activity stream for entries matching the story characteristics; and, in response to identifying an entry as matching the story characteristics, providing for display the entry in a predetermined area of a web page.

US Patent:

20080137864, Jun 12, 2008

Filed:

Dec 8, 2006

Appl. No.:

11/608268

Inventors:

Hongxia Jin - San Jose CA, US
Jeffrey Bruce Lotspiech - Henderson NV, US
Philip Anastasios Zigoris - Santa Cruz CA, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY

International Classification:

H04L 9/16
G06F 17/50

US Classification:

380277, 703 13

Abstract:

A traitor tracing system generates a hypothesized model of the circumvention device that models a hypothesized set of device keys compromised by the circumvention device. The system iteratively invokes a subset tracing system to identify a compromised device key until substantially all the compromised device keys in the set of compromised device keys are identified so as to disable the circumvention device. A subset tracing system generates a circumvention device model that models behavior of a circumvention device using prior knowledge and The system iteratively selects and applies to the circumvention device a test based on the hypothesized model and the circumvention device model and receives a response from the circumvention device indicating a success of the test in playing protected content on the circumvention device. The system updates the hypothesized model using the received response, the selected test, a current version of the hypothesized model, and a current version of the circumvention device model to focus the test selecting process in determining the device keys obtained from the traitor.

US Patent:

20120203831, Aug 9, 2012

Filed:

Feb 3, 2011

Appl. No.:

13/020745

Inventors:

Kent Schoen - San Francisco CA, US
Ning Li - Newark CA, US
Robert Kang Xing Jin - San Francisco CA, US
Philip Anastasios Zigoris - San Francisco CA, US
Jessica Gronski - Menlo Park CA, US
Jordan Walke - Cupertino CA, US
Eric Michel Giovanola - Palo Alto CA, US

International Classification:

G06F 15/16

US Classification:

709204

Abstract:

Methods, apparatuses and systems directed to sponsored story generation from an organic activity stream in a social networking site. A user wishing to promote an entry from an organic activity stream may, using a sponsor user interface, specify the types of stories to promote to a portion of the home page displayed to a member of a social network.

US Patent:

20120233009, Sep 13, 2012

Filed:

Mar 9, 2011

Appl. No.:

13/044506

Inventors:

Jon Bernhard Fougner - Palo Alto CA, US
Philip Anastasios Zigoris - San Francisco CA, US
Gokul Rajaram - Los Altos CA, US
Ning Li - Newark CA, US

International Classification:

G06Q 30/00

US Classification:

705 263

Abstract:

Methods, apparatuses and systems directed to subscribing to a service for generating and delivering sponsored stories from an organic activity stream in a social networking site. A proxy bidder may aggressively proxy bid for the delivery of the sponsored stories based on a pacing algorithm and feedback loop monitoring the delivery level of sponsored stories.

US Patent:

20120246232, Sep 27, 2012

Filed:

Jun 5, 2012

Appl. No.:

13/488596

Inventors:

Kent Schoen - San Franciso CA, US
Ning Li - Newark CA, US
Robert Kang Xing Jin - San Francisco CA, US
Philip Anastasios Zigoris - San Francisco CA, US
Jessica Gronski - Menlo Park CA, US
Jordan Walke - Cupertino CA, US
Eric Michel Giovanola - Palo Alto CA, US

International Classification:

G06F 15/16

US Classification:

709204

Abstract:

In one embodiment, a method includes receiving a bid to display in a predetermined area of a web page an organic-activity-stream entry matching particular story characteristics. The bid includes a bid amount and one or more targeting criteria. The method includes, n response to identifying an organic-activity-stream entry as matching the story characteristics, providing for display the organic-activity-stream entry in a predetermined area of a web page based at least in part on the bid amount and targeting criteria.

US Patent:

20130014030, Jan 10, 2013

Filed:

Sep 14, 2012

Appl. No.:

13/619894

Inventors:

Kent Schoen - San Franciso CA, US
Ning Li - Newark CA, US
Robert Kang Xing Jin - San Francisco CA, US
Philip Anastasios Zigoris - San Francisco CA, US
Jessica Gronski - Menlo Park CA, US
Jordan Walke - Cupertino CA, US
Eric Michel Giovanola - Palo Alto CA, US

International Classification:

G06F 3/01

US Classification:

715753

Abstract:

In one embodiment, a method includes receiving a first selection of an entity associated with a user of a social-networking system; receiving a second selection of a type of user interaction with the entity; and providing the first and second selections for use in a sponsored-story specification. The use of the first and second selections in the sponsored-story specification facilitate entries in an organic activity stream of the social-networking system that match the sponsored-story specification being provided for display in pre-determined areas of web pages.

US Patent:

20130085858, Apr 4, 2013

Filed:

Oct 4, 2011

Appl. No.:

13/252901

Inventors:

Richard Bill Sim - Foster City CA, US
Rong Yan - Mountain View CA, US
Philip Anastasios Zigoris - San Francisco CA, US

International Classification:

G06Q 30/02

US Classification:

705 1458, 705 1466

Abstract:

In a social networking system, users may perform different types of actions with respect to objects (e.g., for a song, a user can buy, listen to, recommend, or like the song). Objects on the social networking system may include object properties (e.g., for a song, an artist, genre, and album are the song's object properties). Each type of action performed on a type of object may be aggregated in a different way. Actions may be performed on objects by users through the social networking system, a third-party application installed on the social networking system, and systems external to the social networking system. An advertiser may specify targeting criteria based on multiple different action types and aggregations of an action with respect to a particular object. Users may be categorized based on their interactions with objects having a common element. Ads may then be targeted to the categorized users.