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US 10,832,633 B2Granted
Sink device and power control method therefor
AssigneeSamsung Electronics Co., Ltd.
InventorsJong-jin Park, Je-hwan Seo, Seung-il Yoon
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Abstract
The present invention relates to a sink device and a power control method therefor. The sink device comprises: an HDMI reception unit connected to a source device and receiving a signal transmitted by the source device; and a processor for turning on the power of the sink device when a TMDS clock is received from the source device. Therefore, the power of the sink device is automatically turned on, thereby enabling user convenience to improve.
Claims7
A sink device comprising:
- a high definition multimedia interface (HDMI) reception unit connected to a source device and receiving a signal transmitted by the source device;
- a signal processor;
- a transition minimized differential signaling (TMDS) clock detection unit configured to detect a TMDS clock;
- a switch selectively connected to at least one of the signal processor and the TMDS clock detection unit;
- and
- a processor configured to:
- control the switch to connect with the TMDS clock detection unit in a standby mode, and
- based on the TMDS clock being detected by the TMDS clock detection unit, control the switch to connect with the signal processor for transmitting the signal to the signal processor and supply power to the signal processor for processing the signal received from the source device,
- wherein the switch comprises:
- a first switch configured to receive a TMDS CLK (−) signal from the HDMI reception unit, and
- a second switch configured to receive a TMDS CLK (+) signal from the HDMI reception unit.
8 more elements
A power control method of a sink device, the power control method comprising:
- controlling a switch of the sink device to connect with a transition minimized differential signaling (TMDS) clock detection unit of the sink device in a standby mode;
- and
- based on a TMDS clock being detected by the TMDS clock detection unit, controlling the switch to connect with a signal processor of the sink device for transmitting a signal received from a source device through a high definition multimedia interface (HDMI) reception unit and supplying power to the signal processor for processing the signal received from the source device based on the TMDS clock being received from the source device,
- wherein the switch comprises:
- a first switch configured to receive a TMDS CLK (−) signal from the HDMI reception unit;
- and
- a second switch configured to receive a TMDS CLK (+) signal from the HDMI reception unit.
4 more elements
Dependencies are inferred from the claim text.