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Decoding circuit and decoding method thereof

  • US 8,421,652 B2
  • Filed: 10/29/2010
  • Issued: 04/16/2013
  • Est. Priority Date: 11/26/2009
  • Status: Expired due to Fees
First Claim
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1. A decoding circuit, adapted for decoding an input signal, wherein the input signal corresponds to a DMX512 signal format, the input signal comprises at least a break, and the length of the break is a preset time, the decoding circuit comprising:

  • a decoding unit; and

    a detecting unit, coupled to the decoding unit, configured for detecting whether the input signal is kept at a specific logic level for more than the preset time;

    wherein, when the input signal is kept at the specific logic level for more than the preset time, the detecting unit, according to the voltage level of the specific logic level, determines to output the input signal or the inverted input signal to the decoding unit to perform a decoding process.

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