Source device for providing contents to sink device and communication method thereof

  • US 9,832,420 B2
  • Filed: 05/24/2012
  • Issued: 11/28/2017
  • Est. Priority Date: 05/24/2011
  • Status: Active Grant
First Claim
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1. A communication method of a source device that provides contents to a sink device, the communication method comprising:

  • transmitting a communication signal including a High-bandwidth Digital Content Protection (HDCP) signal to the sink device;

    receiving a response signal in response to the communication signal from the sink device;

    determining a first communication status with the sink device by comparing the response signal with a decoding value obtained by decoding in the source device; and

    adjusting the communication signal according to the determined first communication status,wherein the response signal comprises a decoded value of the HDCP signal transmitted to the sink device, andwherein the adjusting the communication signal comprises adjusting a waveform of the communication signal according to the determined first communication status by at least one of heightening a peak to peak of the communication signal, decreasing a rising time and a falling time of the communication signal, and increasing or decreasing jitter for optimization of electrical characteristics of the communication signal.

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