Image data transmitting apparatus and method and image data...

Details Image data transmitting apparatus and method and image data... Image data transmitting apparatus and method and image data...

2003-06-03

2008-11-11

Rao, Andy S (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240240

Reexamination Certificate

active

07450646

ABSTRACT:
An image data transmitting apparatus and an image data transmitting method are provided which can distribute streaming moving images at a transfer rate in accordance with a transmission band with degradation in image quality being mitigated even at the time of congestion. A priority determining section43reads encoded data stored in the buffer42in units of VOP, and then calculates a priority for each VP in terms of VOP based on the amount of encoded data of VP and the number of MBs. A transmission control section44determines VPs starting from a VP of the highest priority that have a data amount up to the amount of transmittable encoded data. This determination is made based on the current state of congestion on a network 6 managed by a congestion state managing section46and the priorities calculated by the priority determining section43. A VP transmitting section45stores the determined VPs in transmission packets for sequential transmission to a client5.

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