Home network system with transmission error recovery
View Patent ↗A client TV in a home entertainment network receives and buffers an audio/video stream from a server, before playing the stream. In the case of buffer underflow, the client TV requests the server to raise the transmission rate. If this causes an ensuing buffer overflow, the client TV requests the server to reset the transmission rate or stop transmitting altogether for a short time.
1. A home entertainment system, comprising:
at least one server; and
at least one client component communicating with the server on a network path,
wherein the client component buffers data received from the server and monitors the amount of buffered data, wherein if it is determined that the amount of buffered data falls below an underflow threshold, the client component sends a request to the server to raise the rate at which data is transmitted, wherein a transcoder in the server is used for automatic bit rate control of data transmitted to the client component, and further wherein under unfavorable network conditions the transcoder transcodes a data stream to a lower bit rate stream and sends the lower bit rate stream faster than a normal operating data transfer rate.
2. The system of claim 1 , wherein if it is determined that the amount of buffered data exceeds an overflow threshold subsequent to raising the rate at which data is transmitted, the client component undertakes at least one of: requesting the server to reset the transmission rate back to an original rate, and requesting the server to stop transmission altogether.
3. The system of claim 1 , wherein the server receives the data from a source of live audio/video data and buffers the data before sending the data to the client component.
4. The system of claim 1 , wherein a live stream is recorded by the client component in a buffer, the amount of buffered data being controlled between two thresholds during playing of the data to avoid over/underflow.
5. The system of claim 1 , wherein the client component is selected from the group of components consisting of: televisions, and portable computers.
6. The system of claim 5 , wherein the client component is a TV.