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High-definition multi-media interface unit and power supply control method thereof

A multimedia interface, high-definition technology, used in TVs, electrical components, color TVs, etc., can solve problems such as inconvenience, HDMI devices cannot be connected to wide area/local area networks, etc.

Inactive Publication Date: 2012-09-19
REALTEK SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the aforementioned applications, if the HDMI device used to connect to the WAN / LAN is powered off, the shared network connection will be interrupted, resulting in the inability of other HDMI devices to connect to the WAN / LAN. It is very inconvenient for some long-term data transmissions (such as video and audio data downloads)

Method used

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  • High-definition multi-media interface unit and power supply control method thereof
  • High-definition multi-media interface unit and power supply control method thereof
  • High-definition multi-media interface unit and power supply control method thereof

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Embodiment Construction

[0018] figure 1 is a block diagram of an embodiment of the HDMI device of the present invention (ie, the first HDMI device 10 ). In this embodiment, the first HDMI device 10 can be various HDMI receiving devices, such as televisions, monitors, etc., and the second HDMI device 13 can be various HDMI source devices, such as DVD players, digital set-top boxes, computers, accessories, etc. Network storage device (NAS), etc., in other embodiments, the first HDMI device 10 and the second HDMI device 13 can be any other devices using HDMI interface, such as HDMI extender (extender), HDMI repeater (repeater) , HDMI splitter (multiplexer, multiplexer), etc. The first HDMI device 10 includes an Ethernet circuit 11 and an HDMI interface 12, wherein the HDMI interface 12 includes an HDMI Ethernet channel (HDMI Ethernet channel) for connecting the Ethernet circuit 11, for example, the HDMI interface 12 can utilize existing thermal Plug (Hotplug) pins to serve as the HDMI Ethernet channel...

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Abstract

The invention relates to a high-definition multi-media interface (HDMI) unit and a power supply control method of the HDMI unit, which are applied to situation that an HDMI Ethernet network channel is implemented. The HDMI unit can be connected to another HDMI unit through an HDMI so as to obtain an external power supply, so that the external power supply can be used as an internal standby electric power of an Ethernet network circuit when an internal power supply of the HDMI unit is disconnected. The HDMI unit comprises an HDMI, the HDMI Ethernet network channel and the Ethernet network circuit and is used for feeding allowable signals to the HDMI and the Ethernet network channel, wherein the Ethernet network circuit obtains an external power supply from another HDMI unit through the HDMI.

Description

technical field [0001] The invention relates to a high-definition multimedia interface (HDMI), in particular to an HDMI device supporting an HDMI Ethernet channel and a power control method thereof. Background technique [0002] In the high definition multimedia interface (High Definition Multimedia Interface, HDMI) 1.4 specification, there is a function of supporting Ethernet, so HDMI devices can use the Ethernet channel (ie HDMI Ethernet channel, HEC) in the HDMI interface to communicate with each other. Perform high-speed data transmission. A common application is that an HDMI receiving device (HDMI sink, such as a TV) is connected to a wide area network (WAN) or a local area network (LAN) via an Ethernet interface, and the connected HDMI source device (HDMI source, such as an attached network A storage device (network attached storage, NAS) can also be connected to the wide area / local area network via the HDMI Ethernet channel for data transmission, such as downloading ...

Claims

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Application Information

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IPC IPC(8): H04N5/765
Inventor 钟国展
Owner REALTEK SEMICON CORP