Wireless data communication system and method
AssigneeV-Nova International Limited
InventorsRichard CLUCAS, Guido MEARDI
Life of this patent
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Abstract
A data communication system including a least one encoder and one decoder. The encoder encodes a received input signal into encoded output data. The data communication system includes a data communication network coupled to at least one encoder, wherein the data communication network communicates the encoded output data from the encoder to the decoder. The decoder decodes the encoded output data to generate a rendition of the input signal. The system is characterized in that the data communication network is configured to function according to joint source channel coding (JSCC). Moreover, the encoder and the decoder are configured to employ an hierarchical data structure for representing data to be communicated from the encoder to the decoder.
Claims9
A data communication system comprising:
- a least one encoder;
- and
- at least one decoder;
- wherein the at least one encoder, when in operation, encodes an input signal received thereat into encoded output data;
- wherein the data communication system includes a data communication network that is coupled to at least one encoder, wherein the data communication network, when in operation, communicates the encoded output data from the at least one encoder to the at least one decoder;
- wherein the at least one decoder, when in operation, decodes the encoded output data to generate a rendition of the input signal;
- wherein the data communication network is configured to function according to joint source channel coding (JSCC);
- wherein the encoder and the decoder are configured to employ an hierarchical data structure for representing data to be communicated from the at least one encoder to the at least one decoder, wherein the hierarchical data structure includes a base layer and one or more enhancement layers with associated residual data, wherein the base layer is capable of providing a coarse rendition of the input signal at the at least one decoder, and the one or more enhancement layers and their associated residual data are useable when received at the least one decoder to enhance the coarse rendition to render the input signal at a high level of quality than the coarse rendition;
- and
- wherein the at least one encoder is operable selectively to drop sending parts of data of the one or more enhancement layers and their associated residual data in response bandwidth limitations, ghosting, interference and/or data errors arising in the data communication network.
A method of operating a data communication system including a least one encoder and at least one decoder,
- wherein the at least one encoder, when in operation, encodes an input signal received thereat into encoded output data;
- wherein the data communication system includes a data communication network that is coupled to at least one encoder, wherein the data communication network, when in operation, communicates the encoded output data from the at least one encoder to the at least one decoder;
- wherein the at least one decoder, when in operation, decodes the encoded output data to generate a rendition of the input signal,
- the method comprising:
- configuring the data communication network to function according to joint source channel coding (JSCC);
- configuring the encoder and the decoder to employ an hierarchical data structure for representing data to be communicated from the at least one encoder to the at least one decoder, wherein the hierarchical data structure includes a base layer and one or more enhancement layers with associated residual data, wherein the base layer is capable of providing a coarse rendition of the input signal at the at least one decoder, and the one or more enhancement layers and their associated residual data are useable when received at the least one decoder to enhance the coarse rendition to render the input signal at a high level of quality than the coarse rendition;
- and
- configuring the at least one encoder, when in operation, selectively to drop sending parts of data of the one or more enhancement layers and their associated residual data in response bandwidth limitations, ghosting, interference and/or data errors arising in the data communication network.
Dependencies are inferred from the claim text.