Digital Information Recording/Reproducing Apparatus
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Abstract
An apparatus for receiving digital information including at least one of digital video information and digital audio information. The apparatus includes a receiver which receives the digital information that has digital video information bit-compressed by a first compression system, digital audio information bit-compressed by a second compression system, and error-detection information added to both the digital video information and the digital audio information, a demodulator which demodulates the received digital information, and an error detector which detects an error of digital information demodulated by the demodulator. A first expander bit-expands video information among the digital information which is error detected corresponding to the first compression system, and a second expander bit-expands audio information among the digital information which is error detected corresponding to the second compression system.
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Citations
2 Claims
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1. (canceled)
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2. A digital information receiving method used in a digital information transmitting and receiving system, wherein the digital information includes video information and audio information, and the video information is compressed by a first compression system using a discrete cosine transform and the audio information is compressed by a second compression system, comprising the steps of:
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receiving the digital information transmitted to a transmission path, the digital information being compressed and having added thereto a transmission parity signal which is common for both of the compressed video information and the compressed audio information; correcting an error occurring in the transmission path for the received digital information, based upon the transmission parity signal; de-multiplexing the error corrected digital information into the compressed video information and the compressed audio information; expanding the compressed video information by the first compression system; and expanding the compressed audio information by the second compression system.
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Specification