Patent ID: 8576858
Filing Date: 2013-11-05
Classification: H04L,H04N

Abstract:
1. A method for hierarchical communication of a set of source data, the method comprising: receiving source data representing content to be communicated to a data terminal; pre-coding at least some of the source data using a first pre-coding scheme to generate a first set of representation data, decodable independently to provide a set of first-level playback data representing the source data; pre-coding at least some of the source data using a second pre-coding scheme to generate a second set of representation data, decodable in combination with the first set of representation data to provide a set of second-level playback data representing the source data; associating the first set of representation data with a first channel coding and modulation scheme; associating the second set of representation data with a second channel coding and modulation scheme, wherein the second channel coding and modulation scheme is of a higher order than the first channel coding and modulation scheme; generating a first transmission by applying the first channel coding and modulation scheme to the first set of representation data; generating a second transmission by applying the second channel coding and modulation scheme to the second set of representation data; transmitting the first transmission to the data terminal on a first communication link; and transmitting the second transmission to the data terminal on a second communication link, wherein the second communication link differs from the first communication link.