1
Timothy R Feldman, Lane W Lee, Michael F Braitberg, Douglas M Rayburn, Gary G Kiwimagi: Secure access method and system. DPHI Acquisitions, Jonathan W Hallman, MacPherson Kwok Chen & Heid, September 19, 2006: US07110982 (82 worldwide citation)

A secure electronic content system and method is provided. The system includes a controller including an interface component, a host system coupled to the controller, the host system configured to present content under predetermined conditions, the host system operable with a navigation protocol, th ...


2
Lane W Lee, Daniel R Zaharris: Digital rights management within an embedded storage device. DPHI Acquisitions, MacPherson Kwok Chen & Heid, October 21, 2003: US06636966 (62 worldwide citation)

A method is provided for enabling locked data stored on a storage medium and accessing it through a data storage engine contained within or connected to a host device. A user selects all or part of the data stored on the storage medium to enable. The host device then connects to a server over a netw ...


3
Lane W Lee, Michael B Propps, Daniel R Zaharris: File system management embedded in a storage device. DPHI Acquisitions, MacPherson Kwok Chen & Heid, November 23, 2004: US06823398 (58 worldwide citation)

A file system for accessing information on digital storage media is provided by a storage device controller embedded within the storage device. The storage device controller includes an interface component to receive a packet having a file system command. A command decode component in the storage de ...


4
Michael F Braitberg, Steven B Volk, Daniel R Zaharris, David H Davies: Combination mastered and writeable medium and use in electronic internet appliance. DPHI Acquisitions, Jonathan W Hallman, MacPherson Kwok Chen & Heid, December 27, 2005: US06980652 (34 worldwide citation)

An optical medium uses a single structure or format (such as identical materials, layers and the like) for both a region for holding mastered data and a writeable area. In one aspect, a writeable region of a medium with mastered content is used in connection with paying, collecting or accounting for ...


5
Michael F Braitberg, Steven B Volk: Content distribution method and apparatus. DPHI Acquisitions, Johnathan W Hallman, MacPherson Kwok Chen & Heid, March 13, 2007: US07191153 (27 worldwide citation)

Media which stores protected content is distributed to users without the need for payment at the time of media distribution. Payment can be performed at a later time in response to which content may be enabled, and/or users may selectively pay for, and receive enablement of, content such that only p ...


6
Lane W Lee, Randal C Hines, Mark J Gurkowski, David L Blankenbeckler: Block-level storage device with content security. DPHI Acquisitions, Haynes & Boone, June 16, 2009: US07549044 (27 worldwide citation)

A block-level storage device is provided that implements a digital rights management (DRM) system. In response to receiving a public key from an associated host system, the storage device challenges the host system to prove it has the corresponding private key to establish trust. This trust is estab ...


7
Michael F Braitberg, Steven B Volk: Writeable medium access control using a medium writeable area. DPHI Acquisitions, MacPherson Kwok Chen & Heid, October 7, 2003: US06631359 (26 worldwide citation)

An optical medium uses a single structure or format (such as identical materials, layers and the like) for both a region for holding information content-mastered data and a writeable area. In one aspect, a writeable region of a medium with information content-mastered data is used in connection with ...


8
Ron J Kadlec, Christopher J Turner, Charles R Watt, Hans B Wach: Calibration storage methods for a digital focus and tracking servo system with calibration. DPHI Acquisitions, Jonathan W Hallman, MacPherson Kwok Chen & Heid, March 27, 2007: US07196979 (20 worldwide citation)

A method of storing calibrated optical parameters is presented. In some embodiments, calibrated optical parameters are stored in place of stored parameters. In some embodiments, averages between the calibrated operating parameters and stored optical parameters are stored. In other embodiments, the s ...


9
Lane W Lee, Timothy R Feldman, Douglas M Rayburn, Gary G Kiwimagi: Host certification method and system. DPHI Acquisitions, Jonathan W Hallman, MacPherson Kwok Chen & Heid, December 18, 2007: US07310821 (20 worldwide citation)

A system and method is provided for authenticating a device. A method includes receiving a certificate from the device, the certificate including a plurality of fields, including a field holding a digital signature from a certifying authority, verifying the digital signatures in the certificate, the ...


10
Ron J Kadlec, Charles R Watt, Christopher J Turner, Hans B Wach: Digital focus and tracking servo system. DPHI Acquisitions, MacPherson Kwok Chen & Heid, October 26, 2004: US06809995 (15 worldwide citation)

A digital servo system for controlling tracking or focus in an optical disk driver is presented. A servo system according to the present invention includes an optical pick-up with detectors providing optical signals, an analog processor receiving the optical signals and providing a digital signal, a ...