Harman Becker Automotive Systems Gmbh

Digital Video Express, L.p.

Juergen Vogel

Guenther Huber

Michael Maier

Thomas Sagcob

Bernd Broghammer

Karl Buehler

Gerd Mauthe

Alexander Kravtchenko

Lauren Christopher

Friedrich Rominger

Max Artigalas

A video signal processing system for processing a video data Vand graphic data Dincludes a filter unit, which receives the video data V. The filter unit filters the video data Vto convert the video data Vinto video pictures formatted with a different number of columns and/or lines, and provides a filtered video signal indicative thereof. The filter unit buffers individual pixels and/or lines in a first memory device. A second memory device receives and stores the graphic data Dand the filtered video signal and provides stored signals indicative thereof. A third memory device is connected to the second memory, and stores data received from the second memory device. A mixing unit receives and mixes the stored graphic data and the stored filtered video data to provide a video output signal V.

Video signal processing system

A method and apparatus for preventing unauthorized use of DVDs on a DVD ROM drive. The method comprises a DVD disc that includes special data processing. When the DVD is replayed on a standard DVD ROM drive the invention causes the output of the DVD ROM drive to be erroneous, such that the computer cannot use the data. According to the invention, when encoding a disc, the error correction and/or error detection bits, check bytes, are moved into the normal or main data area. When this scrambled data is output from a standard DVD ROM drive, the data in the check byte area is lost and the information is not useable. For authorized use, this scrambling is reversed before sending video and/or audio data to the MPED decoder and AC-3 decoder respectively.

Method and apparatus for encrypting and for decrypting data arranged in a data sector

A video signal processing system for processing a video data V and graphic data D includes a filter unit, which receives the video data V . The filter unit filters the video data V to convert the video data V into video pictures formated with a different number of columns and/or lines, and provides a filtered video signal indicative thereof. The filter unit buffers individual pixels and/or lines in a first memory device. A second memory device receives and stores the graphic data D and the filtered video signal and provides stored signals indicative thereof. A third memory device is connected to the second memory, and stores data received from the second memory device. A mixing unit receives and mixes the stored graphic data and the stored filtered video data to provide a video output signal V .

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Brigachtal, Germany

Juergen Vogel