Patents by Inventor John Princen

John Princen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090150293
    Abstract: Dynamic assignment of rights to content, such as in a closed distribution system. Noting state information generated by an item of current content, and modifying state or rights of new content in response. Preloading or dynamically sending new content to the owner of the current content, with rights being enabled only at a later time, in the playback device, with predetermined conditions. In response to current state information, dynamically sending a license for new content from a server. Conditional or dynamic licenses to new content, including a set of rights associated with a class of possible sets of state information. Assignment of limited rights to a content, with support in a secure player to enforce them; for purposes of rental, bonus content, trials and other business models.
    Type: Application
    Filed: December 8, 2008
    Publication date: June 11, 2009
    Applicant: BroadOn Communications Corp.
    Inventors: Wei Yen, David Blythe, John Princen, Pramila Srinivasan
  • Patent number: 7464058
    Abstract: Dynamic assignment of rights to content, such as in a closed distribution system. Noting state information generated by an item of current content, and modifying state or rights of new content in response. Preloading or dynamically sending new content to the owner of the current content, with rights being enabled only at a later time, in the playback device, with predetermined conditions. In response to current state information, dynamically sending a license for new content from a server. Conditional or dynamic licenses to new content, including a set of rights associated with a class of possible sets of state information. Assignment of limited rights to a content, with support in a secure player to enforce them; for purposes of rental, bonus content, trials and other business models.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: December 9, 2008
    Assignee: BroadOn Communications Corp.
    Inventors: Wei Yen, David Blythe, John Princen, Pramila Srinivasan
  • Patent number: 7380275
    Abstract: A secure processor assuring application software is executed securely, and assuring only authorized software is executed, monitored modes and secure modes of operation. The former executes application software transparently to that software. The latter verifies execution of the application software is authorized, performs any extraordinary services required by the application software, and verifies the processor has obtained rights to execute the content. The secure processor (1) appears hardware-identical to an ordinary processor, with the effect that application software written for ordinary processors can be executed on the secure processor without substantial change, (2) needs only a minimal degree of additional hardware over and above those portions appearing hardware-identical to an ordinary processor. The secure processor operates without substantial reduction in speed or other resources available to the application software.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: May 27, 2008
    Assignee: BroadOn Communications Corp.
    Inventors: Pramila Srinivasan, John Princen, Frank Berndt, David Blythe, William Saperstein, Wei Yen
  • Publication number: 20080117679
    Abstract: A technique for securing a flash memory block in a secure device system involves cryptographic techniques including the generation of a Message Authentication Code (MAC). The MAC may be generated each time a file is saved to one or more data blocks of a flash memory device and stored with the file's metadata and to each of the data blocks. A technique for reading and storing versioned files may be employed when applications utilize versioning.
    Type: Application
    Filed: February 26, 2007
    Publication date: May 22, 2008
    Inventors: Pramila Srinivasan, John Princen, Andy Chan, Paul Mielke, Rob Wheeler
  • Publication number: 20080114984
    Abstract: An improved secure programming technique involves reducing the size of bits programmed in on-chip secret non-volatile memory, at the same time enabling the typical secure applications supported by secure devices. A technique for secure programming involves de-coupling chip manufacture from the later process of connecting to ticket servers to obtain tickets. A method according to the technique may involve sending a (manufacturing) server signed certificate from the device prior to any communication to receive tickets. A device according to the technique may include chip-internal non-volatile memory to store the certificate along with the private key, in the manufacturing process.
    Type: Application
    Filed: November 16, 2006
    Publication date: May 15, 2008
    Inventors: Pramila Srinivasan, John Princen
  • Publication number: 20080091945
    Abstract: A technique for security and authentication on block-based media includes involves the use of protected keys, providing authentication and encryption primitives. A system according to the technique may include a secure device having a security kernel with protected keys. A disk drive security mechanism may support authentication of data, secrecy, and ticket validation using the security kernel and, for example, a ticket services module (e.g., a shared service that may or may not be used by other storage devices like flash).
    Type: Application
    Filed: October 24, 2006
    Publication date: April 17, 2008
    Inventors: John Princen, Pramila Srinivasan, Craig Steven Anderson
  • Patent number: 7322042
    Abstract: A secure processor assuring application software is executed securely, and assuring only authorized software is executed, monitored modes and secure modes of operation. The former executes application software transparently to that software. The latter verifies execution of the application software is authorized, performs any extraordinary services required by the application software, and verifies the processor has obtained rights to execute the content. The secure processor (1) appears hardware-identical to an ordinary processor, with the effect that application software written for ordinary processors can be executed on the secure processor without substantial change, (2) needs only a minimal degree of additional hardware over and above those portions appearing hardware-identical to an ordinary processor. The secure processor operates without substantial reduction in speed or other resources available to the application software.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: January 22, 2008
    Assignee: BroadOn Communications Corp.
    Inventors: Pramila Srinivasan, John Princen, Frank Berndt, David Blythe, William Saperstein, Wei Yen
  • Publication number: 20070255659
    Abstract: A technique for DRM translation involves converting first digital content into second digital content. An example of a system according to the technique includes a server that provides a first digital content unit coded with a first digital format and use-right protected by first digital rights management (DRM). The system further includes a translator capable of converting the first digital content unit into a second digital content unit coded with a second digital format and use-right protected by second DRM.
    Type: Application
    Filed: May 1, 2006
    Publication date: November 1, 2007
    Inventors: Wei Yen, John Princen, Raymond Lo, Wilson Ho
  • Patent number: 7194514
    Abstract: The invention provides a method and system for delivering relatively large documents (such as for example media documents) with reduced use of time and other resources. Relatively large documents sent by a sender to a recipient in an email message are delivered separately from the email message, asynchronously from delivery of the email message or its presentation to the recipient, and using an out-of-band technique separate from email message delivery. This provides for relatively rapid and reliable delivery of the email message, separate reliable delivery of the media document, and presentation of the media document to the recipient without further sending delay. Pre-probing of destination devices may occur to determine a preferred set of characteristics to manage delivery.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: March 20, 2007
    Assignee: BroadOn Communications Corp.
    Inventors: Wei Yen, John Princen
  • Publication number: 20050273439
    Abstract: Dynamic assignment of rights to content, such as in a closed distribution system. Noting state information generated by an item of current content, and modifying state or rights of new content in response. Preloading or dynamically sending new content to the owner of the current content, with rights being enabled only at a later time, in the playback device, with predetermined conditions. In response to current state information, dynamically sending a license for new content from a server. Conditional or dynamic licenses to new content, including a set of rights associated with a class of possible sets of state information. Assignment of limited rights to a content, with support in a secure player to enforce them; for purposes of rental, bonus content, trials and other business models.
    Type: Application
    Filed: August 12, 2005
    Publication date: December 8, 2005
    Inventors: Wei Yen, David Blythe, John Princen, Pramila Srinivasan
  • Publication number: 20050273438
    Abstract: Dynamic assignment of rights to content, such as in a closed distribution system. Noting state information generated by an item of current content, and modifying state or rights of new content in response. Preloading or dynamically sending new content to the owner of the current content, with rights being enabled only at a later time, in the playback device, with predetermined conditions. In response to current state information, dynamically sending a license for new content from a server. Conditional or dynamic licenses to new content, including a set of rights associated with a class of possible sets of state information. Assignment of limited rights to a content, with support in a secure player to enforce them; for purposes of rental, bonus content, trials and other business models.
    Type: Application
    Filed: August 12, 2005
    Publication date: December 8, 2005
    Inventors: Wei Yen, David Blythe, John Princen, Pramila Srinivasan
  • Publication number: 20050132217
    Abstract: A secure processor assuring application software is executed securely, and assuring only authorized software is executed, monitored modes and secure modes of operation. The former executes application software transparently to that software. The latter verifies execution of the application software is authorized, performs any extraordinary services required by the application software, and verifies the processor has obtained rights to execute the content. The secure processor (1) appears hardware-identical to an ordinary processor, with the effect that application software written for ordinary processors can be executed on the secure processor without substantial change, (2) needs only a minimal degree of additional hardware over and above those portions appearing hardware-identical to an ordinary processor. The secure processor operates without substantial reduction in speed or other resources available to the application software.
    Type: Application
    Filed: January 31, 2005
    Publication date: June 16, 2005
    Inventors: Pramila Srinivasan, John Princen, Frank Berndt, David Blythe, William Saperstein, Wei Yen
  • Publication number: 20050038753
    Abstract: Dynamic assignment of rights to content, such as in a closed distribution system. Noting state information generated by an item of current content, and modifying state or rights of new content in response. Pre-loading or dynamically sending new content to the owner of the current content, with rights being enabled only at a later time, in the playback device, with predetermined conditions. In response to current state information, dynamically sending a license for new content from a server. Conditional or dynamic licenses to new content, including a set of rights associated with a class of possible sets of state information. Assignment of limited rights to a content, with support in a secure player to enforce them; for purposes of rental, bonus content, trials and other business models.
    Type: Application
    Filed: November 5, 2003
    Publication date: February 17, 2005
    Inventors: Wei Yen, David Blythe, John Princen, Pramila Srinivasan
  • Publication number: 20040267384
    Abstract: The invention includes a method and system combining the capabilities of a console and controller, having a hand-held form factor including a removable and re-writable cartridge that can be inserted, using a processor capable of general purpose processing. The software can be upgraded, possibly dynamically. Dynamic upgrades can occur in real time. The processor has links to supplemental consoles, and supports multiplayer games. The communication link is coupled to a PC workstation or network router, and supports interactive communication. Multiplayer games can include players in remote locations. Games can include contests among multiple players, and among teams of players.
    Type: Application
    Filed: September 23, 2003
    Publication date: December 30, 2004
    Applicants: BroadOn Communications, Inc., iQue Ltd.
    Inventors: Wei Yen, William Saperstein, John Princen
  • Publication number: 20040158742
    Abstract: A secure processor assuring application software is executed securely, and assuring only authorized software is executed, monitored modes and secure modes of operation. The former executes application software transparently to that software. The latter verifies execution of the application software is authorized, performs any extraordinary services required by the application software, and verifies the processor has obtained rights to execute the content. The secure processor (1) appears hardware-identical to an ordinary processor, with the effect that application software written for ordinary processors can be executed on the secure processor without substantial change, (2) needs only a minimal degree of additional hardware over and above those portions appearing hardware-identical to an ordinary processor. The secure processor operates without substantial reduction in speed or other resources available to the application software.
    Type: Application
    Filed: February 7, 2003
    Publication date: August 12, 2004
    Applicant: BroadOn
    Inventors: Pramila Srinivasan, John Princen, Frank Berndt, David Blythe, William Saperstein, Wei Yen
  • Patent number: 6593929
    Abstract: A low cost high performance three dimensional (3D) graphics system is disclosed that can model a world in three dimensions and project the model onto a two dimensional viewing plane selected based on a changeable viewpoint. The viewpoint can be changed on an interactive, real time basis by operating user input controls such as game controllers. The system rapidly produces a corresponding changing image (which can include animated cartoon characters or other animation) on the screen of a color television set. The richly featured high performance low cost system is intended to give consumers the change to interact in real time right inside magnificent virtual 3D worlds to provide a high degree of image realism, excitement and flexibility. An optimum feature set/architecture (including a custom designed graphics/audio coprocessor) provides high quality fast moving 3D images and digital stereo sound for video game play and other graphics applications.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: July 15, 2003
    Assignees: Nintendo Co., Ltd., Silicon Graphics Inc.
    Inventors: Timothy J. Van Hook, Howard H. Cheng, Anthony P. DeLaurier, Carroll P. Gossett, Robert J. Moore, Stephen J. Shepard, Harold S. Anderson, John Princen, Jeffrey C. Doughty, Nathan F. Pooley, Byron Sheppard, Genyo Takeda, Shuhei Kato
  • Publication number: 20030080963
    Abstract: A low cost high performance three dimensional (3D) graphics system is disclosed that can model a world in three dimensions and project the model onto a two dimensional viewing plane selected based on a changeable viewpoint. The viewpoint can be changed on an interactive, real time basis by operating user input controls such as game controllers. The system rapidly produces a corresponding changing image (which can include animated cartoon characters or other animation) on the screen of a color television set.
    Type: Application
    Filed: March 27, 2002
    Publication date: May 1, 2003
    Applicant: Nintendo Co., Ltd.
    Inventors: Timothy J. Van Hook, Howard H. Cheng, Anthony P. DeLaurier, Carroll P. Gossett, Robert J. Moore, Stephen J. Shepard, Harold S. Anderson, John Princen, Jeffrey C. Doughty, Nathan F. Pooley, Byron Sheppard, Genyo Takeda, Shuhei Kato
  • Patent number: 6556197
    Abstract: A low cost high performance three dimensional (3D) graphics system is disclosed that can model a world in three dimensions and project the model onto a two dimensional viewing plane selected based on a changeable viewpoint. The viewpoint can be changed on an interactive, real time basis by operating user input controls such as game controllers. The system rapidly produces a corresponding changing image (which can include animated cartoon characters or other animation) on the screen of a color television set. The richly featured high performance low cost system is intended to give consumers the chance to interact in real time right inside magnificent virtual 3D worlds to provide a high degree of image realism, excitement and flexibility. An optimum feature set/architecture (including a custom designed graphics/audio coprocessor) provides high quality fast moving 3D images and digital stereo sound for video game play and other graphics applications.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: April 29, 2003
    Assignees: Nintendo Co., Ltd., Silicon Graphics, Inc.
    Inventors: Timothy J. Van Hook, Howard H. Cheng, Anthony P. DeLaurier, Carroll P. Gossett, Robert J. Moore, Stephen J. Shepard, Harold S. Anderson, John Princen, Jeffrey C. Doughty, Nathan F. Pooley, Byron Sheppard, Genyo Takeda, Shuhei Kato
  • Patent number: 6342892
    Abstract: A low cost high performance three dimensional (3D) graphics system can model a world in three dimensions and project the model onto a two dimensional viewing plane selected based on a changeable viewpoint. The viewpoint can be changed on an interactive, real time basis by operating user input controls such as game controllers. The system rapidly produces a corresponding changing image (which can include animated cartoon characters or other animation for example) on the screen of a color television set. The richly featured high performance low cost system gives consumers the chance to interact in real time inside magnificent virtual 3D worlds to provide a high degree of image realism, excitement and flexibility. An optimum feature set/architecture (including a custom designed graphics/audio coprocessor) provides high quality fast moving 3D images and digital stereo sound for video game play and other graphics applications.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: January 29, 2002
    Assignees: Nintendo Co., Ltd., Silicon Graphics, Inc.
    Inventors: Timothy J. Van Hook, Howard H. Cheng, Anthony P. DeLaurier, Carroll P. Gossett, Robert J. Moore, Stephen J. Shepard, Harold S. Anderson, John Princen, Jeffrey C. Doughty, Nathan F. Pooley, Byron Sheppard, Genyo Takeda, Shuhei Kato
  • Patent number: 6331856
    Abstract: A low cost high performance three dimensional (3D) graphics system can model a world in three dimensions and project the model onto a two dimensional viewing plane selected based on a changeable viewpoint. The viewpoint can be changed on an interactive, real time basis by operating user input controls such as game controllers. The system rapidly produces a corresponding changing image (which can include animated cartoon characters or other animation for example) on the screen of a color television set. The richly featured high performance low cost system gives consumers the chance to interact in real time inside magnificent virtual 3D worlds to provide a high degree of image realism, excitement and flexibility. An optimum feature set/architecture (including a custom designed graphics/audio coprocessor) provides high quality fast moving 3D images and digital stereo sound for video game play and other graphics applications.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: December 18, 2001
    Assignees: Nintendo Co., Ltd., Silicon Graphics, Inc.
    Inventors: Timothy J. Van Hook, Howard H. Cheng, Anthony P. DeLaurier, Carroll P. Gossett, Robert J. Moore, Stephen J. Shepard, Harold S. Anderson, John Princen, Jeffrey C. Doughty, Nathan F. Pooley, Byron Sheppard, Genyo Takeda, Shuhei Kato