System for synchronizing the playback of two or more...

Details System for synchronizing the playback of two or more... System for synchronizing the playback of two or more...

2006-08-22

2006-08-22

Tran, Thai (Department: 2621)

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

C386S349000, C386S349000, C386S349000, C386S349000, C386S349000, C386S349000

Reexamination Certificate

active

07095947

ABSTRACT:
The present invention is directed to a method and system for synchronizing the replay of a pre-recorded program between a plurality of playback devices utilizing closed-caption data. The internal block of the playback devices are synchronized. Upon receiving program content signals including a series of frames and a string of closed-caption (CC) characters, the string of CC characters is sampled at a predetermined sampling interval, and the sequence of sampled CC characters and the corresponding frame are stored according to a predetermined format in a memory. Thereafter, in response to a user's request, the desired program content signals responsive to the user's request are retrieved from the respective memory of playback devices and displayed for viewing.

REFERENCES:
patent: 4009331 (1977-02-01), Goldmark et al.
patent: 4538188 (1985-08-01), Barker et al.
patent: 5448287 (1995-09-01), Hull
patent: 6118923 (2000-09-01), Rodriguez

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