Patent ID: 6278564
Filing Date: 2001-08-21
Classification: G11B,H04N

Abstract:
A digital information transmitting, receiving and recording/reproducing system provided with a transmitting apparatus for transmitting digital information to a transmission path, a receiving apparatus for receiving the transmitted digital information and a recording/reproducing apparatus for recording/reproducing the received digital information to/from a recording media;wherein said transmitting apparatus comprises:a compressor which compresses the digital information by a predetermined compression system;a first modulator which modulates the compressed digital information compressed by said compressor by using a first modulation system; anda transmitter which transmits the compressed digital information modulated by said first modulator to said transmission path;wherein said receiving apparatus comprises:a receiver which receives the compressed digital information transmitted by said transmitter of said transmitting apparatus;a first demodulator which demodulates the compressed digital information received by said receiver corresponding to said first modulation system; andan output portion which outputs the compressed digital information demodulated by said first demodulator, with no further expansion and/or compression processing; andwherein said recording/reproducing apparatus comprises:an input portion which inputs the compressed digital information provided from said output portion of said receiving apparatus;a record parity signal adder which adds a record parity signal to the inputted compressed digital information;a second modulator which modulates the record parity signal added compressed digital information added by said record parity signal adder by using a second modulation system which is different from said first modulation system;a recorder/reproducer which records and reproduces the compressed digital information modulated by said second modulator to/from said recording media;a second demodulator which demodulates the compressed digital information reproduced from said recording media corresponding to said second modulation system;an error corrector which error corrects the compressed digital information demodulated by said second demodulator based upon said record parity signal; andan expander which expands the error corrected compressed digital information corrected by said error corrector corresponding to said compression system;whereby the compressed digital information transmitted from said transmitting apparatus is recorded to said recording media by using said recording/reproducing apparatus with no further expansion and/or compression processing.