Patent ID: 8311096
Filing Date: 2012-11-13
Classification: H03M,H04N

Abstract:
1. A method for continuous automatic adaptation of coding parameters to a variable user-data rate of a datastream composed of data frames, comprising: buffering, in a data buffer, data packets received and associated with individual services for mobile receivers and an ensemble associated with the respective service; determining, based on the data packets buffered in the data buffer, a transmission requirement of a respective ensemble for a next data frame in the datastream to be configured; determining optimized coding parameters for the respective ensemble in the next data frame to be transmitted dependent upon a transmission requirement determined for the respective un-coded ensemble in the next data frame to be transmitted and a transmission capacity provided for the respective un-coded ensemble in the next data frame to be transmitted, wherein the optimized coding parameters are determined by seeking a next highest transmission-capacity value for an un-coded ensemble in a data frame relative to the transmission requirement of the un-coded ensemble in tables, in which for various transmission-capacity values for an un-coded ensemble within a data frame and for various coding-parameter values, a previously-determined transmission-capacity value for an un-coded ATSC M/H ensemble is stored in a data frame.