Wireless digital receiving set based on AVS source coding

Abstract

The invention includes the orderly connected modem receiving / emitting unit, the channel decoding unit and the AVS signal source decoding unit. Via the AVS decoding solution, better than the MPEG2 solution, it wirelessly receives, channel-demodulates, AVS-decodes the radio wave that possesses characteristic of the images and sounds of the AVS coding, to reverse the wave into the original image and sound signals. Thus it avoids problems of the MPEG2 standard, such as the lower coding / decoding efficiency, a complex structure, taking up more bandwidth, and the expensive fare to use IP. Compared with the MPEG2 signal source decoding solution, it improves the ratio of functionality to price, plus overcomes the application limitation.

Description

technical field [0001] The invention relates to an embedded digital wireless receiving device, in particular to a wireless receiving device adopting AVS video / audio digital decoding. Background technique [0002] Currently known digital wireless receiving devices, especially for wireless receiving devices using embedded technology, usually use source decoding schemes based on standard series such as MPEG2, MPEG4 or MPEGX, such as Chinese Patent Publication No. CN1443007, the date of announcement is On September 17, 2003, the equipment introduced using wireless LAN to send and receive MPEG data has the advantages of adopting the international MPEG2 source compression / decompression standard, strong versatility, and good compatibility with display devices; but the disadvantages Yes: The encoding / decoding efficiency of the MPEG2 standard is low, the implementation structure is complex, the bandwidth is relatively wide, and the IP usage fee is high, which results in defects in pe...

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Problems solved by technology

[0002] Currently known digital wireless receiving devices, especially for wireless receiving devices using embedded technology, usually use source decoding schemes based on standard series such as MPEG2, MPEG4 or MPEGX, such as Chinese Patent Publication No. CN1443007, the date of announcement is On September 17, 2003, the equipment introduced using wireless LAN to send and receive MPEG data has the advantages of adopting the international MPEG2 source compression / decompression standard, strong versatility, and good compatibility with display devices; but the disadvantages Yes: The encoding / decoding efficiency of the MPEG2 standard is low, the implementation structure is complex, the bandwidth is wide, and the IP usage fee is high, which causes defects in performance / price ratio and application limitations

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