1
Caglan M Aras, Luther B Griffin, Fuyung Lai, Arthur James Stagg, Kian Bon Kho Sy: Method and apparatus for monitoring audio-visual materials presented to a subscriber. International Business Machines Corporation, John D Flynn, February 16, 1999: US05872588 (582 worldwide citation)

A method and apparatus for content coding of Audio-Visual materials is presented. The content coding can then be decoded by a home station where the content coding is collected and processed. The content codes are utilized by the subscribers home station to collect information on the subscribers sel ...


2
Caglan M Aras, Luther B Griffin, Fuyung Lai, Arthur James Stagg, Kian Bon Kho Sy: Method and apparatus for screening audio-visual materials presented to a subscriber. International Business Machines Corporation, John D Flynn, May 26, 1998: US05757417 (178 worldwide citation)

A method and apparatus for the automatic access control to multimedia presentations at the receiver in accordance with a viewer selected access mode and access classification data encoded into the multimedia presentation. Screening classification codes (SCCs) are embedded in the Audio Visual Materia ...