Patent ID: 9167259
Filing Date: 2015-10-20
Classification: H04L,H04N

Abstract:
1. A method for transmitting a transmitted representation of a media stream over a bandwidth limited medium, the method comprising the steps of: determining a plurality of compression functions of statistically distinct compression levels, wherein applying a compression function on the media stream produces a compressed representation: of the media stream; determining a relationship between valid values of compressed representations of the media stream; defining the statistically most compressed representation of the media stream as a base layer media stream; defining enhancement data for representing a relationship between valid values of the compressed representations of the media stream; compressing the media stream by applying the compression functions, thereby producing a plurality of compressed representations of the media stream; determining if enhancement data is required for reconstructing a compressed representation of the media stream; generating an enhancement data layer, in response to the determination; determining an available bandwidth of the bandwidth limited medium; generating a transmitted representation of the media stream, the transmitted representation of the media stream comprises the base media layer and at least one successive enhancement data layer, wherein the aggregate bandwidth of the base media layer and the at least one successive enhancement data layer does not exceed the available bandwidth of the bandwidth limited medium; and providing the transmitted representation of the media stream to the bandwidth limited medium; wherein compressed representations of the media stream comprise a plurality of symbols, the symbols of a p'th compressed representation of the media stream are defined as a p'th media layer symbol; wherein for each symbol of the original media layer and for each value of p between 2 and k executing the steps of: