Patent ID: 8472520

Claim:
A system, comprising: a decoder configured to receive an encoded frame from an encoder via a forward data channel, and to return feedback information regarding the reception of some or all of the encoded frame to the encoder via a feedback channel, wherein the encoder is configured to: receive data frames at a first resolution from a source, for each data frame at the first resolution, generate a corresponding encoded data frame at a second resolution, responsive to the feedback information received from the decoder, analyze the feedback information to determine which of (i) retransmission of a portion of the encoded frame at the first resolution, or (ii) transmission of the corresponding data frame at the second resolution is required, and, transmit either the portion of the encoded frame at the first resolution or the corresponding encoded data frame at the second resolution, as appropriate, to the decoder via the forward data channel, otherwise, if retransmission of a portion of the encoded frame at the first resolution or transmission of the encoded data frame at the second resolution is not required, transmit a subsequent encoded frame at the first resolution to the decoder via the forward data channel.