Resources Contact Us Home
Method and apparatus for multiple media digital communication system

Image Number 15 for United States Patent #8116301.

The present invention is embodied in a digital communication system where multiple media data sources are time multiplexed into a packetized data stream, each packet having an assigned priority and the packetized data stream transmitted in substantially the order of assigned priority. At both the transmit side, and the receive side, audio packets are given priority processing over video packets, which in turn have priority over text/graphics data packets. Continuous real time audio playback is maintained at the receiver by delaying the playback of received audio in a first in/first out (FIFO) buffer providing a delay at least equal to the predicted average packet delay for the communication system. Optionally, the average system delay is continuously monitored, and the audio playback delay time is adjusted accordingly. Audio playback is slowed or accelerated in order to shrink or grow the difference in time between the sender and receiver. In another aspect of the invention, a conference of three or more callers is created by broadcasting a common packetized data stream to all conference callers.

  Recently Added Patents
Method of forming a power supply controller and structure therefor
Block polymers and their process of preparation
Buffering stop structure and corresponding packing case
Managing aging of silicon in an integrated circuit device
Cis-alkoxy-substituted spirocyclic 1-H-pyrrolidine-2,4-dione derivatives
Liquid-filled protein-phosphatidic acid capsule dispersions
Systems, methods, and devices for selling transaction instruments via web-based tool
  Randomly Featured Patents
Microbiocidal composition and method of preparation thereof
Alkyltitanium and alkylchromium catalysts for olefin polymerization
Manual breastpump with stimulation feature
Process for preparing polymers of carbon monoxide and ethylene under specified pressures
Controlling activity levels and reducing infrastructure data transmission costs for wireless mobile devices
Cyclic depsipeptides useful for treatment of hyperlipemia
Magnetic drive for a valve
Carton blank
Impact resistant tank for cryogenic fluids