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HDMI switcher and HDMI switching system

A switching system and switcher technology, which is applied to the components of the TV system, standard conversion, high-definition standard conversion, etc., can solve the problem that the power amplifier equipment cannot play the audio of the external receiving device, the power amplifier equipment cannot be connected to high-quality audio, and does not support Issues such as eARC audio return

Active Publication Date: 2021-07-02
深圳市玩视科技股份有限公司
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Problems solved by technology

[0004] However, the inventors have found that the audio formats supported by different power amplifiers are different, and the audio formats returned by external receiving devices (such as televisions) are often fixed. TV) returned audio in case of
Moreover, some external receiving devices (such as TVs) on the market still do not support eARC audio return, and cannot be directly connected to power amplifiers to obtain high-quality audio

Method used

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Embodiment Construction

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will describe each embodiment of the present invention in detail with reference to the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in this application can also be realized.

[0022] The first embodiment of the present invention relates to an HDMI switcher. The core of this embodiment is to include: a control unit, an audio processing unit connected to the control unit; the HDMI switcher has a hot-swappable interface channel, a first ARC audio return channel, the second ARC audio return chan...

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Abstract

The embodiment of the invention relates to the field of audio and video product design, and discloses an HDMI switcher. An audio processing unit is used for acquiring a first audio format supported by external power amplifier equipment and sending the first audio format to a control unit; the control unit is used for sending the first audio format to an external signal source, so that the external signal source sends a first audio signal matched with the first audio format to an external receiving device; and the audio processing unit is also used for receiving an eARC audio signal matched with the first audio format from the external receiving device through the first ARC audio return channel, and returning the eARC audio signal matched with the first audio format to the external power amplifier equipment through the hot plug interface channel and the second ARC audio return channel. According to the HDMI switcher and the HDMI switching system provided by the embodiment of the invention, eARC audio return can be realized between external power amplifier equipment with different audio formats and an external receiving device (such as a television), so that high-quality audio can be obtained.

Description

technical field [0001] The embodiments of the present invention relate to the field of audio and video product design, and in particular to an HDMI switcher and an HDMI switching system. Background technique [0002] HDMI (High Definition Multimedia Interface, High Definition Multimedia Interface) is a fully digital audio and video interface. HDMI interface products are very common, and are mostly used in DVD / Blu-ray players, TV sets, A / V digital power amplifiers and other equipment. [0003] Although the traditional HDMI switcher processes the audio signal and then outputs it through an optical fiber or a speaker, or outputs it to an external receiving device (such as a TV), the sound quality after processing is still not satisfactory. The equipment with the best sound quality currently on the market is the power amplifier device. Users can directly return the uncompressed high-quality audio from an external receiving device (such as a TV) to the power amplifier device to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/765H04N7/01
CPCH04N5/765H04N7/0125
Inventor 李树坚
Owner 深圳市玩视科技股份有限公司
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