Patent ID: 7916809
Filing Date: 2011-03-29
Classification: H04N

Abstract:
1. A digital receiving apparatus comprising: a measuring unit for measuring a physical information of a stream of demodulation signal, the physical information indicating a reception quality; an information separating unit for reproducing the stream of the demodulation signal, separating it into stream signals on multiplexed respective channels for output, and determining data compression types of the stream signals, the data compression types indicating data types with and without compression; a decoding unit for decoding and outputting said stream signals; a control unit for switching and controlling a stream signal for the decoding unit to decode out of the stream signals on said respective channels; and a storing unit for storing matching information for indicating matching a relationship between the physical information and the data compression types of the stream signals on the respective channels, wherein said control unit determines the matching relationship between said measured physical information and the determined data compression type of the stream signal on a channel selected out of said channels based on said matching information, and switches to the stream signal on another channel and makes said decoding unit decode it when the control unit determines that said physical information and the determined data compression type of the stream signal on said selected channel do not conform to a predetermined relationship.