File splitting, scalable coding, and asynchronous...

Details File splitting, scalable coding, and asynchronous... File splitting, scalable coding, and asynchronous...

2011-07-05

2011-07-05

Luu, Le (Department: 2448)

Electrical computers and digital processing systems: multicomput

Computer-to-computer protocol implementing

Computer-to-computer data transfer regulating

C709S236000

Reexamination Certificate

active

07975065

ABSTRACT:
Files are divided into parts and at least some of the parts are transmitted to a client using a communication channel. At least some of the transmitted parts are cached locally. This allows subsequent streaming playback of the file while using less bandwidth by transmitting the part of the file that hasn't been cached, and combining the cached parts with the transmitted parts. In some embodiments, files may be represented at a low quality level by a first data set, and at higher quality levels with additional data sets. Data sets are cached locally, so that during subsequent streaming playback of the file, the quality level of the playback may be improved by sending additional data sets using bandwidth that would otherwise be dedicated to transmitting the cached data sets.

REFERENCES:
patent: 5303302 (1994-04-01), Burrows
patent: 5708709 (1998-01-01), Rose
patent: 5764235 (1998-06-01), Hunt et al.
patent: 2003/0093476 (2003-05-01), Syed
patent: 2003/0133453 (2003-07-01), Makishima et al.
patent: 2003/0165200 (2003-09-01), Pugel
patent: 2003/0206558 (2003-11-01), Parkkinen et al.

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