Eddie J Chen

US Patent:

6954738, Oct 11, 2005

Filed:

Dec 1, 2003

Appl. No.:

10/724076

Inventors:

Xin Wang - Torrence CA, US
Bijan Tadayon - Germantown MD, US
Thomas DeMartini - Culver City CA, US
Michael Raley - Downey CA, US
Guillermo Lao - Torrance CA, US
Eddie Chen - Rancho Palos Verdes CA, US
Charles P. Gilliam - Darien CT, US

Assignee:

ContentGuard Holdings, Inc. - Wilmington DE

International Classification:

G06F017/60
H04K001/00

US Classification:

705 59, 705 1, 705 50, 705 51, 705 54, 713200, 713201, 380200, 380201, 380202, 380203, 380204

Abstract:

An enforceable property right and a system for controlling the manner of use of an item in accordance with usage rights. The enforceable property right includes an item ticket having a security mechanism incorporated therein and specifying an item for which the item ticket can be redeemed and a license associated with the item ticket. The license includes usage rights specifying a manner of use for redeeming the item ticket and a mechanism for unlocking said security mechanism.

US Patent:

6963858, Nov 8, 2005

Filed:

Dec 11, 2002

Appl. No.:

10/316187

Inventors:

Xin Wang - Torrance CA, US
Eddie J. Chen - Rancho Palos Verdes CA, US
Thomas DeMartini - Culver City CA, US
Charles P. Gilliam - Darien CT, US
Guillermo Lao - Torrance CA, US
Aram Nahidipour - Laguna Niguel CA, US
Michael Raley - Downey CA, US
Thanh Ta - Huntington Beach CA, US
Bijan Tadayon - Germantown MD, US

Assignee:

ContentGuard Holdings, Inc. - Wilmington DE

International Classification:

G06F017/60

US Classification:

705 51, 707 9, 707104

Abstract:

A rights management system including one or more consequential rights associated with digital content, and specifying a manner of use of the digital content, a right management module that enforces the rights permitting use of the digital content in accordance with the rights upon occurrence of a consequential event. The consequential event is based on another usage right. In one embodiment, the consequential event is the exercise, expiration, or possession of another usage right.

US Patent:

7028009, Apr 11, 2006

Filed:

Jun 3, 2002

Appl. No.:

10/159272

Inventors:

Xin Wang - Torrence CA, US
Bijan Tadayon - Germantown MD, US
Thomas DeMartini - Culver City CA, US
Michael Raley - Downey CA, US
Guillermo Lao - Torrance CA, US
Eddie Chen - Rancho Palos Verdes CA, US
Charles P. Gilliam - Darien CT, US

Assignee:

ContentGuardiHoldings, Inc. - Wilmington DE

International Classification:

G06F 17/60

US Classification:

705 51, 705 52, 705 53, 705 54, 705 55, 705 56, 705 57, 705 58, 705 59, 705 50, 380201, 707 9, 7071041, 713182, 713183, 713184, 713185, 713186

Abstract:

An enforceable property right and a system for controlling the manner of use of an item in accordance with usage rights. The enforceable property right includes an item ticket having a security mechanism incorporated therein and specifying an item for which the item ticket can be redeemed and a license associated with the item ticket. The license includes usage rights specifying a manner of use for redeeming the item ticket and a mechanism for unlocking said security mechanism.

US Patent:

7152046, Dec 19, 2006

Filed:

Jun 7, 2002

Appl. No.:

10/163631

Inventors:

Xin Wang - Torrance CA, US
Thomas DeMartini - Culver City CA, US
Eddie J. Chen - Rancho Palos Verdes CA, US
Charles P. Gilliam - Darien CT, US
Manuel Ham - Downey CA, US
Guillermo Lao - Torrance CA, US
Michael C. Raley - Downey CA, US
Thanh Ta - Huntington Beach CA, US
Bijan Tadayon - Germantown MD, US

Assignee:

ContentGuard Holdings, Inc. - Wilmington DE

International Classification:

G06Q 99/00
H04K 1/00
H04L 9/00

US Classification:

705 51, 705 52, 705 53, 705 54, 705 55, 705 56, 705 57, 705 58, 705 59, 705 50, 380201, 707 9, 7071041, 713182, 713183, 713184, 713185, 713186

Abstract:

A method and system for managing the state of a protected resource in a system for granting access to a protected resource in accordance with usage rights. The usage rights include at least one state variable indicating a status of an associated protected resource. A message related to the state variable is transmitted from a resource control device to an interface framework. The resource control device is coupled to the resource to control use of the resource by enforcing the usage right. A state controller operative to track the value of the state variable is loaded into the framework and instructed to manipulate the value of the state variable in accordance with said message. For example, the message can be a query of the current value of the state variable.

US Patent:

7299171, Nov 20, 2007

Filed:

Aug 17, 2004

Appl. No.:

10/919438

Inventors:

Thanh Ta - Huntington Beach CA, US
Eddie Chen - Rancho Palos Verdes CA, US
Guillermo Lao - Torrance CA, US
Edgardo Valenzuela - South Gate CA, US

Assignee:

ContentGuard Holdings, Inc. - Wilmington DE

International Classification:

G06F 17/21

US Classification:

704 9

Abstract:

Legality expressions are systematically pre-processed, organized, and stored to achieve faster real-time response, improved predictability, and increased reliability for queries against a large volume of legality expressions. Exponential improvements in both the time to locate the set of legality expressions matching specified search criteria and the processing costs of evaluating the request against the matching legality expressions are achieved using the disclosed systems, devices, and methods. The systems, devices, and methods are unique to the optimization of legality expression processing, but they can also enable the use of other optimization techniques for processing large amounts of data.

US Patent:

7386513, Jun 10, 2008

Filed:

Jun 1, 2004

Appl. No.:

10/856865

Inventors:

Guillermo Lao - Torrance CA, US
Manuel Ham - Downey CA, US
Eddie J Chen - Rancho Palos Verdes CA, US
Thomas DeMartini - Culver City CA, US
Charles P Gilliam - Darien CT, US
Michael Raley - Downey CA, US
Bijan Tadayon - Germantown MD, US
Xin Wang - Torrance CA, US

Assignee:

ContentGuard Holdings, Inc. - Wilmington DE

International Classification:

G06Q 99/00
H04K 1/00

US Classification:

705 51, 705 50, 705 52, 726 26, 726 30, 713187, 713600

Abstract:

A method, system, and computer program product for exercising rights based on determining trust in an issuance of a rights expression, including issuing rights expressions by a chain of servers, forming a chain of rights expressions issued from server to server and finally from the last server to a client, such that each of the rights expressions except the last includes a specification of rights for the next server to issue the rights in the next rights expression; determining whether or not each of the servers has a right to issue the respective rights expression; exercising by the client the rights expressed in the last rights expression as being trusted, if it is determined that each of the servers had a right to issue the respective rights expression; and not exercising by the client the rights expressed in the last rights expression as not being trusted, if it is determined that at least one of the servers did not have the right to issue the respective rights expression.

US Patent:

7558759, Jul 7, 2009

Filed:

Nov 19, 2002

Appl. No.:

10/298999

Inventors:

Edgardo Valenzuela - South Gate CA, US
Eddie J. Chen - Rancho Palos Verdes CA, US
Thomas DeMartini - Culver City CA, US
Joseph Zhung Yee Fung - Cerritos CA, US
Mai Nguyen - Buena Park CA, US
Vincent Hsiang Tieu - Torrance CA, US
Duc Tran - Westminster CA, US

Assignee:

ContentGuard Holdings, Inc. - Wilmington DE

International Classification:

G06F 17/00

US Classification:

705 50, 705 1, 705 51, 705 59, 380201

Abstract:

System and methods for manipulating rights expressions for use in connection with a rights management system include one or more tokenized templates. Each tokenized template includes one or more rights expression language statements and one or more tokens associated with at least one of the rights expression language statements. Further, the tokens can be place holders for data items or rights expression elements. The system further includes a license template module that creates the tokenized templates, and a license instance creation module that replaces at least one of the tokens in one or more selected license templates with one or more of the data items or rights expression elements to generate a license instance. Additionally, the system includes a license instance analysis module having sub-modules for validating and interpreting license instances, and a data parsing module for extracting data from created license instances.

US Patent:

7685642, Mar 23, 2010

Filed:

Jun 26, 2003

Appl. No.:

10/606151

Inventors:

Charles P Gilliam - Darien CT, US
Eddie J Chen - Rancho Palos Verdes CA, US

Assignee:

ContentGuard Holdings, Inc. - Wilmington DE

International Classification:

H04L 9/32

US Classification:

726 26, 726 27, 726 28

Abstract:

A system and method for controlling a rights expression specifying a manner of use of an item, including specifying by a provider of an item a rights expression indicating a manner of use of the item by a recipient of the item and a condition for use of the item by the recipient, the condition indicating that the use by the recipient of the item is subject to control; associating the rights expression with the item; and controlling the use by the recipient of the item based on the condition in the rights expression. In further exemplary embodiments, the use by the recipient of the item is subject to control by a stakeholder and/or a provider of the item and can be used to provide consumer protection based on parameters of use.