Method and Apparatus for Recovering From Errors in Transmission of Encoded Video Over a Local Area Network
First Claim
1. A video communication arrangement, comprising:
- a transmitter for transmitting a digitally encoded video stream to a receiver associated with a video rendering device, said digitally encoded video stream including a plurality of frames;
a frame locator for identifying locations from which the frames are available for retrieval;
a signal analysis system for analyzing a return signal received from the receiver to determine if a degraded signal condition exists between the transmitter and receiver sufficient to cause improper reception by the receiver; and
a recovery system for retrieving at least one replacement frame if the degraded signal condition exists and causing the replacement frame to be re-transmitted to the receiver.
1 Assignment
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Accused Products
Abstract
A video communication arrangement includes a transmitter for transmitting a digitally encoded video stream to a receiver associated with a video rendering device. The digitally encoded video stream including a plurality of frames. The arrangement also includes a frame locator for identifying locations from which the frames are available for retrieval and a signal analysis system for analyzing a return signal received from the receiver to determine if a degraded signal condition exists between the transmitter and receiver sufficient to cause improper reception by the receiver. A recovery system is provided for retrieving at least one replacement frame if the degraded signal condition exists and for causing the replacement frame to be re-transmitted to the receiver.
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Citations
20 Claims
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1. A video communication arrangement, comprising:
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a transmitter for transmitting a digitally encoded video stream to a receiver associated with a video rendering device, said digitally encoded video stream including a plurality of frames; a frame locator for identifying locations from which the frames are available for retrieval; a signal analysis system for analyzing a return signal received from the receiver to determine if a degraded signal condition exists between the transmitter and receiver sufficient to cause improper reception by the receiver; and a recovery system for retrieving at least one replacement frame if the degraded signal condition exists and causing the replacement frame to be re-transmitted to the receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A media server for distributing digitally encoded video stream programs over a network to a media client, comprising:
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a frame locator for identifying locations from which frames are available for retrieval; a signal analysis system for analyzing a return signal from the media client to determine if a degraded signal condition exists over the network between the media server and the media client; and a recovery system for retrieving at least one replacement frame from its available location if a degraded signal condition exists and causing the replacement frame to be re-transmitted to the media client. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. At least one computer-readable medium encoded with instructions which, when executed by a processor, performs a method comprising:
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identifying at least one frame of a digitally encoded video stream which was forwarded to a receiver during a degraded signal condition sufficient to cause improper reception by a receiver; identifying a location from which at least one replacement frame is available for retrieval; and retrieving the replacement frame from its available location if the degraded signal condition exists and causing the replacement frame to be re-transmitted to the receiver. - View Dependent Claims (19, 20)
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Specification