Masayuki Demura, Hironobu Nagura, Tetsuya Tamura, Keisuke Tanaka: Method and apparatus for detecting and correcting errors and erasures in product ECC-coded data arrays for DVD and similar storage subsystems. International Business Machines Corporation, R Bruce Brodie, Marc D McSwain, April 22, 2003: US06553533 (86 worldwide citation)

A method and apparatus for detecting and correcting errors and erasures in product-coded data arrays by iterative syndrome processing array data in row major order and column major order. A first dense map is formed for classifying each row containing location indicia of random errors, their correct ...

Hajime Morito, Hiroshi Yoshiura, Michael Roe: Copy protection apparatus and method. Hitachi, Mattingly Stanger & Malur P C, October 30, 2001: US06310956 (85 worldwide citation)

An apparatus and method of copy protection for use in digital data recorders such as DVD-RAM recorders, which includes embedding transmission time information into a digital data stream by digital watermarking and comparing the transmission time with the current time at the data recorder (

Derrill L Sturgeon, Donald K Zickefoose: Customization schemes for content presentation in a device with converged functionality. Compaq Computer Corporation, Sharp Comfort & Merrett P C, August 6, 2002: US06429879 (85 worldwide citation)

Schemes for customization of content presentation relating to a Digital Versatile/Video Disc source, which source is preferably integrated into a convergence device system. A user preferences or settings database is provided that is automatically maintained or supported by a computer subsystem, wher ...

Kamran Ahmed, Alexandre Lahaise, Gilles Forest, Yves Tremblay, Lorne Trottier: Multiple display device display controller with video overlay and full screen video outputs. Matrox Graphics, James Anglehart, Alexandra Daoud, Ogilvy Renault, August 10, 2004: US06774912 (85 worldwide citation)

Multiple independent displays from one graphics controller can be driven in a wide variety of modes using multiple display controllers. This invention incorporates a unique combination of enhancement building on a generic single multi-display graphics subsystem. Digital video is gaining vast popular ...

Michael F Angelo, Daniel J Driscoll: Copy protection for recorded media. Compaq Computer Corporation, Jenkens & Gilchrist, July 13, 1999: US05923754 (83 worldwide citation)

A method and apparatus for securely transferring an encrypted-data key and a medium key, from a media storage such as a DVD disk to an output device in a computer system, using a randomly generated first secure transfer key generated by a disk drive of the computer system, the first key having a uni ...

Viktors Berstis: Multi-user video hard disk recorder. International Business Machines Corporation, Leslie A Van Leeuwen, May 13, 2003: US06564005 (82 worldwide citation)

A multi-user system, method, and computer-usable medium facilitate time-shifting of television program viewing for users. Each user is identified by an associated user profile, and a program schedule, including a list of desired programs to be recorded, is maintained for each user. The television pr ...

Geoff Chatterton: System and method for processing subpicture data. Digeo, Kory D Christensen, Stoel Rives, March 27, 2007: US07197234 (82 worldwide citation)

A method is described for rendering subpicture images comprising: reading a subpicture image from a digital versatile disk (“DVD”); identifying regions within the subpicture image for which α is below a specified threshold value; and rendering on a video screen only those regions of the subpicture i ...

Koyu Yamanoi, Hiroshi Kobayashi, Futoshi Fujinara: Wide capture range circuitry. Texas Instruments Incorporated, W Daniel Swayze Jr, W James Brady, Frederick J Telecky Jr, July 31, 2001: US06269058 (80 worldwide citation)

Circuitry and method for synchronizing operating speeds of signal processing devices to the data rate of a signal. It applies in particular to Compact Disk (CD) and Digital Versatile Disk (DVD) drives to be used with portable devices. The circuitry does not require clock synchronization speeds in ex ...

Christopher P Zook: Concurrent generation of ECC error syndromes and CRC validation syndromes in a DVD storage device. Cirrus Logic, Howard H Sheerin, Dan A Shifrin, November 23, 1999: US05991911 (79 worldwide citation)

A compact disk (CD) and digital video disk (DVD) error correction system is disclosed which generates a CRC validation syndrome on-the-fly while correcting the CD/DVD product code, thereby reducing the overall access latency as compared to the prior art. For the DVD product code, which comprises mul ...


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