Method and apparatus for free previews of communication...

Details Method and apparatus for free previews of communication... Method and apparatus for free previews of communication...

H - Electricity

04

N

H04N 7/167 (2006.01) H04N 7/16 (2006.01)

Patent

CA 2160068

Limited duration previews of program offerings available for purchase via a communication network are provided in a cryptographically secure manner at virtually any time during the service. The invention has particular applicability to the provision of video services on a pay-per-view basis. Such a video service is provided during a program epoch. A fixed period is defined during the program epoch when portions of the video service are available for viewing on a preview basis. A consumer is allowed to preview, without purchase, portions of the video service at any time during the fixed period for up to a maximum preview duration that is shorter than the fixed period. The consumer can then purchase the video service for viewing during the program epoch after previewing portions thereof. A plurality of records is maintained to service different previewable programs concurrently.

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