1
Edgar Downs, George Gregory Gruse, Marco M Hurtado, Christopher T Lehman, Kenneth Louis Milsted, Jeffrey B Lotspiech: Electronic content delivery system. International Business Machines Corporation, Steven J Meyers, Steven J Soucar, Fleit Kain Gibbons Gutman & Bongini P L, May 1, 2001: US06226618 (1442 worldwide citation)

Disclosed is a method and apparatus of securely providing data to a user's system. The data is encrypted so as to only be decryptable by a data decrypting key, the data decrypting key being encrypted using a first public key, and the encrypted data being accessible to the user's system, th ...


2
Marco M Hurtado, George Gregory Gruse, Edgar Downs, Kenneth Louis Milsted: Multimedia player for an electronic content delivery system. International Business Machines Corporation, Steven J Meyers, David M Shofi, Fleit Kain Gibbons Gutman & Dongini P L, July 9, 2002: US06418421 (453 worldwide citation)

A system for tracking usage of digital content on user devices. Electronic stores coupled to a network sell licenses to play digital content data to users. Content players, which receive from the network the licensed content data, are used to play the licensed content data. Additionally, a logging s ...


3
Edgar Downs, George Gregory Gruse, Marco M Hurtado, Cesar Medina, Kenneth Louis Milsted: Secure electronic content management system. International Business Machines Corporation, Steven J Meyers, David M Shofi, Fleit Kain Gibbons Gutman & Bongini P L, June 3, 2003: US06574609 (361 worldwide citation)

A method of managing content data and associated metadata. According to the method, the content data and the associated metadata are generated. The content data is transferred to a content host, and the metadata and usage condition data for the associated content are transferred to an electronic sto ...


4
Marco M Hurtado, Kenneth L Milsted, George G Gruse, Edgar Downs, Christopher T Lehman, Richard L Spagna, Jeffrey B Lotspiech: Secure electronic content distribution on CDS and DVDs. International Business Machines Corporation, Jon A Gibbons, David M Shofi, Fleit Kain Gibbons Gutman & Bongini P L, August 26, 2003: US06611812 (308 worldwide citation)

A method to delivery encrypted digital content to a end user system for playing the content comprising the steps of: reading from a computer readable medium metadata which has previously associated with the content. A user selects from the metadata associated content to decrypt and the end user syst ...


5
George Gregory Gruse, Marco M Hurtado, Kenneth Louis Milsted, Jeffrey B Lotspiech: Key management system for digital content player. International Business Machines Corporation, Steven J Meyers, David M Shofi, Fleit Kain Gibbons Gutman & Bongini P L, June 4, 2002: US06398245 (258 worldwide citation)

A method of managing keys used by a digital content player on a computer system. According to the method, digital content data encrypted with a first encrypting key is decrypted using a first decrypting key, and re-encrypted using a second encrypting key. A second decrypting key is encrypted using a ...


6
Marco M Hurtado, James C Mahlbacher, Richard L Spagna: Super-distribution of protected digital content. International Business Machines Corporation, David M Shofi, Jon A Gibbons, Fleit Kain Gibbons Gutman Bongini & Bianco P L, January 3, 2006: US06983371 (194 worldwide citation)

Briefly according to the present invention, a system, computer readable medium and method to deliver encrypted digital content to from a first system for playing the content to a second system for playing the content. The method on the first user system comprising the steps of: reading from a comput ...


7
Richard L Spagna, Marco M Hurtado, Paul R Rettig, Ting Zhao: Updating usage conditions in lieu of download digital rights management protected content. International Business Machines Corporation, Jon A Gibbons, Fleit Kain Gibbons Gutman Bongini & Bianco P L, September 19, 2006: US07110984 (76 worldwide citation)

A method on an end user system for creating additional copies onto at least one computer readable medium such as CDs, DVDs, ZipDisks™, tape, Flash memory, and RAM. The method comprising the steps of: receiving encrypted content with associated usage conditions and a first hash value; receiving a sel ...


8
George Gregory Gruse, Kenneth Louis Milsted, Marco M Hurtado, Glen Edward Hamblin: Method and system for recording in-progress broadcast programs. International Business Machines Corporation, Steven J Meyers, Steven J Soucar, Fleit Khan Gibbons Gutman & Bongini P L, January 9, 2001: US06173112 (68 worldwide citation)

In a data communication network wherein broadcasted transmissions include a portion uniquely identifying the content of the following transmission and wherein transmissions are repeated at predetermined intervals, a communication unit for operating within the system includes a receiver, a processor, ...


9
Marco M Hurtado, Kenneth L Milsted, Kha D Nguyen: Watermarking system that executes received watermarking instructions to embed a watermark. International Business Machines Corporation, Stephen Bongini, Fleit Gibbons Gutman Bongini & Bianco PL, May 15, 2012: US08180708 (32 worldwide citation)

A method of managing keys is provided. According to one exemplary method, digital content data encrypted with a first encrypting key is decrypted using a first decrypting key, and re-encrypted using a second encrypting key. A second decrypting key is encrypted using a third encrypting key to produce ...


10
Richard L Spagna, Marco M Hurtado, Paul R Rettig, Ting Zhao: Updating usage conditions in lieu of download digital rights management protected content. International Business Machines Corporation, André Gibbs, Jon A Gibbons, Fleit Gibbons Gutman Bongini & Bianco P L, February 3, 2009: US07487128 (25 worldwide citation)

A method on an end user system for creating additional copies onto at least one computer readable medium such as CDs, DVDs, ZipDisks™, tape, Flash memory, and RAM. The method comprising the steps of: receiving encrypted content with associated usage conditions and a first hash value; receiving a sel ...