Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1996-04-05
1998-10-13
Dung, Dinh C.
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
39520063, 39520065, 345302, 370231, G06F 1516
Patent
active
058225374
ABSTRACT:
Disclosed is a networked multimedia information system which may be utilized to record, store and distribute multimedia presentations together with any supplemental materials that may be referenced during the presentation. The recorded presentation, together with the associated supplemental materials, may be simultaneously presented on a display containing two separate viewing windows. The effects of network congestion are minimized by prefetching audio and video data for storage in audio and video buffers. An adaptive control algorithm compensates for network congestion by dynamically varying the rate at which video frames are retrieved over the network, in response to network traffic conditions. The audio playback speed is reduced if the audio data does not arrive fast enough over the network to maintain the desired size of the audio buffer after the amount of video data transmitted across the network has been reduced to a minimum value.
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Katseff Howard P.
Robinson Bethany Scott
AT&T Corp.
Dung Dinh C.
Restaino Thomas A.
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