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
Active constant power supply apparatus
Account and customer creation in an on-line banking model
Valved, microwell cell-culture device and method
Polymer composites having highly dispersed carbon nanotubes
Architectural panel with natural fossil spade leaf embossed surface
Method and system for automatically hiding irrelevant parts of hierarchical structures in computer user interfaces
  Randomly Featured Patents
Foldable clothes hanger rail system
Abnormality diagnosis apparatus for secondary air supply system of engine
Image reconstruction method for a magnetic resonance imaging device and a device for realizing same
Method and system for four dimensional intensity modulated radiation therapy for motion compensated treatments
Pressure sensor mounting device for high temperature environments
Automatic depth correction based on blade pitch
Finding blob-like structures using diverging gradient field response
Metalorganic chemical vapor deposition of (ba.sub.1-x Sr.sub.x)RuO.sub.3 /Ba.sub.1-x Sr.sub.x)TiO.sub.3 /(Ba.sub.1-x SR.sub.x)RuO.sub.3 capacitors for high dielectric materials
Toy car