Process for coding a signal digitizer input for transmission without loss through a medium and to decode an encrypted signal.Apparatus for encoding a digital signal input and to decode a coded signal, a signal comprising at least a packet of a first type and a packet of a second type, and.Storage media

摘要

"Processes for encoding a digital signal input for transmission without loss through a medium and to decode an encrypted signal.Apparatus for encoding a digital signal input and to decode a coded signal, a signal comprising at least a packet of a first type and a packet of a second type, and.Storage medium.A process and apparatus (10) for encoding a digital signal input for transmission without loss.It comprises first calculating device (12) to calculate a checksum of the digital signal input.The apparatus also includes encoding device (11) for coding without loss to a packet encoded digital data.And the device composition (1 3) to add a checksum associated with the packet encoded to form an encoded signal.They are associated with a process and apparatus (20) for decoding the coded signal.It includes extraction device (21) for receiving the coded signal and extract the package encoded and the checksum associated with.Decoding device (22) for decoding the encoded packet to a packet decoded comprising the digital signal input.According to calculating device (23) for calculating a checksum for the packet decoded, and output device (24).(25) for outputting the decoded packet as an output signal if the checksum calculated corresponds to the sum of the extracted verification.