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System having correction unit and correcting method thereof

  • US 8,289,197 B2
  • Filed: 11/15/2010
  • Issued: 10/16/2012
  • Est. Priority Date: 12/02/2009
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a target unit to be corrected; and

    a correction unit configured to perform binary search of a correction value with which an output of the target unit gets closer to a reference value and feeds back the correction value to the target unit, whereinthe correction unit is configured to perform additional comparison for comparing a first output of the target unit and a second output of the target unit and for selecting a first or second correction value corresponding to the first or second output closer to the reference value, the first output corresponding to the first correction value searched by the binary search, the second output corresponding to the second correction value that is adjacent to the first correction value, a voltage relationship to the reference value of the second output being opposite to that of the first output,wherein the correction unit is configured to feed back the selected correction value to the target unit.

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