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
Direct file transfer between subscribers of a communications systems
Semiconductor device and method for manufacturing the same
Bioactive agent-loaded heart-targeting nanoparticles
Methods of isolating bipotent hepatic progenitor cells
Powerline communication receiver
Side portion of a circular saw blade
Modulation of HSP47 expression
  Randomly Featured Patents
Methods for improving contrast based dynamic range management
Method for the separation of gaseous isotope compounds
System for providing secure remote command execution network
Torque-transmitting tool
Manufacturing method of semiconductor device
Contactless profiling method
Method for shutting down a refrigerating unit
Low-resistance carbon grounding module and method for manufacturing the same
Lubrication device for stage-geared gearbox
Stackable food container with lid