Patent ID: 6498691
Filing Date: 2002-12-24
Classification: G11B,H04N

Abstract:
A digital information transmitting apparatus used in a digital information transmitting, receiving and recording system in which digital information is transmitted to a transmission path, the transmitted digital information is received and the received digital information is recorded to a recording medium, wherein the digital information includes video information and audio information, comprising:a first compressor which compresses the video information included in the digital information by a first compression system; a second compressor which compresses the audio information included in the digital information by a second compression system which is different from the first compression system; a transmission parity signal adder which adds a common transmission parity signal to the compressed video information compressed by said first compressor and to the compressed audio information compressed by said second compressor in order to correct an error occurring in the transmission path, the common transmission parity signal being different from a common record parity signal to be added to the compressed video information and to the compressed audio information at the time of recording to said recording medium; a transmitter which transmits the common transmission parity signal added compressed digital information added by said transmission parity signal adder; whereby the digital information is transmitted to the transmission path with no further expansion and/or compression processing so as to enable the compressed digital information transmitted to the transmission path to be error corrected based upon the common transmission parity signal, the common record parity signal to be added to the error corrected digital information and the common record parity signal added digital information to be recorded to the recording medium with no further expansion and/or compression processing.