Source device for providing contents to sink device and communication method thereof
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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Abstract
A source device that provides contents to a sink device and a communication method thereof are provided. The communication method of the source device includes: transmitting a communication signal including a High-bandwidth Digital Content Protection (HDCP) signal to the sink device; determining a communication status with the sink device using an HDCP communication result received from the sink device; and adjusting the communication signal according to the determined communication status. Therefore, the communication method can provide a user with optimized contents.
19 Citations
14 Claims
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1. A communication method of a source device that provides contents to a sink device, the communication method comprising:
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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, and wherein 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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A source device that provides contents to a sink device, the source device comprising:
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a communicating portion which communicates with the sink device; and a controller which controls the communicating portion to transmit a communication signal including a High-bandwidth Digital Content Protection (HDCP) signal to the sink device, receives a response signal in response to the communication signal from the sink device, determines 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 adjusts the communication signal according to the determined communication status, wherein the response signal comprises a decoded value of the HDCP signal transmitted to the sink device, and wherein the controller adjusts a waveform of the communication signal according to the determined communication status so that at least one of a peak to peak of the communication signal is heightened, a rising time and a falling time of the communication signal are decreased, and jitter is increased or decreased for optimization of electrical characteristics of the communication signal. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A communication method of a sink device that receives contents from a source device, the communication method comprising:
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receiving, from the source device, a communication signal including a High-bandwidth Digital Content Protection (HDCP) signal; decoding the HDCP signal included in the received communication signal to obtain a decoding value; transmitting, to the source device, an HDCP communication result; receiving an adjusted communication signal comprising a waveform that is adjusted 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; and receiving the contents, wherein the HDCP communication result comprises the decoding value of the HDCP signal generated in the sink device.
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Specification