Video telecommunications server and method of providing video fa

Details Video telecommunications server and method of providing video fa Video telecommunications server and method of providing video fa

1997-06-30

2000-01-04

Grant, Chris

Electrical computers and digital processing systems: multicomput

Remote data accessing

Accessing a remote server

348 7, 348 17, 455 42, H04N 7173

Patent

active

060120916

ABSTRACT:
A video telecommunication server for use in providing a fast scan of a video telecommunication comprises a bitstream store for receiving and storing a coded input video telecommunication digital bitstream. The server further comprises a video decoder for decoding the received digital video bitstream and, in one embodiment, a representation of every nth frame of said decoded digital video signal is stored in a frame store depending on a desired speed-up rate, where n is greater than one. A video encoder reencodes the stored video telecommunication predictively such that every nth frame is predicted based on the preceding frame. A fast scan digital video bitstream is generated for output by the video encoder that represents the fast scan video telecommunication, either in a fast forward or fast reverse direction. A receiver for receiving a control input may receive data representing the direction of fast scan and the speed-up rate. In further embodiments, the video encoder comprises an intra frame encoder or provides for requesting intra frames from a transmitting video encoder at periodic intervals.

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patent: 5732217 (1998-03-01), Emura
patent: 5818512 (1998-10-01), Fuller

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