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SYSTEM AND METHOD FOR DATA TRANSMISSION

  • US 20090172177A1
  • Filed: 12/19/2005
  • Published: 07/02/2009
  • Est. Priority Date: 12/20/2004
  • Status: Active Grant
First Claim
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1. A sending device for transmitting data to a receiving end, said sending device comprising:

  • an image receiving unit which divides each image received thereby into a plurality of blocks, and which indicates order of reception of blocks received by said image receiving unit using different version numbers;

    a first database for storing image data and the version number of a latest block at each position in the image received by said image receiving unit;

    a transmitting unit connected electrically to said image receiving unit, said transmitting unit transmitting the image data of a block received thereby, a corresponding position of the block in the image, and the version number of the block to the receiving end;

    a determination module connected electrically to said image receiving unit and disposed to receive a block transmitted from said image receiving unit, said determination module issuing a notification upon determining that the block needs to be transmitted to the receiving end;

    an updating unit connected electrically to said first database, said determination module, and said transmitting unit, and disposed to receive the notification transmitted from said determination module, said updating unit updating the version number in said first database according to the notification and transmitting the updated version number, the image data of the block, and the position of the block in the image to said transmitting unit; and

    a notification unit connected electrically to said first database, said notification unit referring to the latest version numbers stored in said first database every inspection cycle, and using Transmission Control Protocol to send a notification to the receiving end so as to notify the receiving end of the latest version number of the block at each position in an image.

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