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Data transfer device and data transfer method having a shorter time interval between pieces of final transfer data in a frame image

  • US 10,452,583 B2
  • Filed: 11/16/2017
  • Issued: 10/22/2019
  • Est. Priority Date: 06/15/2015
  • Status: Active Grant
First Claim
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1. A data transfer device, comprising:

  • a buffer unit configured to temporarily store transfer data that is transferred to a common bus, the transfer data being used for forming a frame image;

    a write control unit configured to write input data as the transfer data to the buffer unit;

    a read control unit configured to read the transfer data from the buffer unit;

    an interface unit configured to transfer the transfer data to the common bus according to a predetermined bus protocol, the transfer data being read from the buffer unit by the read control unit; and

    a band-smoothing unit configured to smooth a band of the common bus,wherein the band-smoothing unit includes a first parameter corresponding to a time interval between pieces of the transfer data when the transfer data except final transfer data included in the frame image is transferred to the common bus, and a second parameter corresponding to the time interval when the final transfer data is transferred to the common bus,wherein the band-smoothing unit sets the time interval using the first parameter when the position of the transfer data in the frame image is a position of transfer data other than the final transfer data,wherein the band-smoothing unit sets the time interval using the second parameter when the position of the transfer data in the frame image is a position of the final transfer data; and

    wherein the time interval that is set using the second parameter is shorter than the time interval that is set using the first parameter.

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