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Encoder redundancy selection system and method

An encoder and redundancy technology, applied in the field of encoder redundancy system, can solve problems such as failing to consider the estimated cost of decoders

Inactive Publication Date: 2008-10-08
PENDRAGON WIRELESS LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Unfortunately until now, existing systems have failed to take into account the estimated cost of implementing error concealment at the decoder when determining the redundancy mechanisms implemented by the encoder

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Embodiment Construction

[0025] Referring now to FIG. 1, the error protection system 10 shown includes: (1) an encoder 12 for receiving data 28 and generating coded data 30; (2) a transmission channel 50 for transmitting coded data 30; and (3) A decoder 14 for receiving encoded data 30 and generating decoded data 32. As will be described in detail below, the encoder 12 includes the ability to add error protection (ie, redundancy) to the data 28 before transmission, while the decoder 14 includes the ability to hide errors after receiving the data. Although in the preferred embodiment, the data 28 includes video data, it is understood that the data 28 may include any type of data that can be transmitted from the encoder 12 to the decoder 14.

[0026] The encoder 12 may include any type of system that processes the data 28 for transmission on the transmission channel 50, including data compression systems using MPEG-2, MPEG-4, etc. technologies. Conversely, the encoder 12 may include a transmitter that only ...

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Abstract

A system and method that selects an encoder redundancy scheme based on the projected cost of concealing the errors using an anticipated error concealment strategy. The invention provides a system for encoding a data set, comprising: a system that anticipates an error concealment strategy that will be used by a decoder in the event that the data set contains errors when received by the decoder; an analysis system that projects a cost for concealing the errors using the error concealment strategy; and a system that selects a redundancy scheme for encoding the data set based on the projected cost of concealing the errors using the error concealment strategy. Also provided is a decoder system for decoding packets of data, comprising: at least one error concealment strategy for concealing errors in an erroneously received packet of data; and a feedback system that provides feedback information regarding the error concealment strategy used by the decoder system to conceal the errors.

Description

Technical field [0001] The present invention generally relates to an encoder redundancy system, and more specifically, to a system and a system for selecting an encoder redundancy mechanism based on the estimated cost of implementing a predicted decoder error concealment algorithm. Background technique [0002] Redundancy strategies are used to correct errors introduced in electronic data and information. The types of data that can be protected include, for example, simple data files, multimedia data (for example, video and audio), or web pages. Errors mainly occur during transmission, and can also be caused by other activities such as writing data to the memory or reading data from the memory. The error protection mechanism works by adding redundancy to the data, which can be used by the decoder or receiver to detect and correct errors. However, in any communication system, bandwidth is usually very precious, and the redundancy mechanism consumes bandwidth, so redundancy must be...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/00H04N7/68H04N7/64H04L1/00H04N19/89H04N19/895
CPCH04N19/00933H04N7/64H03M13/00H04N19/00939H04N7/68H04N19/89H04N19/895
Inventor S·克里斯纳马查里
Owner PENDRAGON WIRELESS LLC
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