HDMI switcher and HDMI switching system

A switching system and switcher technology, which is applied to TV system components, standard conversion, high-definition standard conversion, etc. It can solve the problems of obtaining high-quality audio, not supporting ARC audio return, and not being able to connect power amplifier equipment.

Pending Publication Date: 2021-07-02
深圳市玩视科技有限公司
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Problems solved by technology

[0004] However, the inventor found that some external receiving devices (such as TVs) on the market still do n

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  • HDMI switcher and HDMI switching system
  • HDMI switcher and HDMI switching system

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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 first ARC audio return channel, a second ARC audio return channel; the control unit is used to send...

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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. A control unit is used for sending audio format identification data to an external signal source, so that the external signal source identifies a first audio format supported by the HDMI switcher according to the audio format identification data; a first audio signal matched with the first audio format is sent to an external receiving device; and an audio processing unit is also used for receiving the ARC audio signal matched with the first audio format from the external receiving device through the first ARC audio return channel, and returning the ARC audio signal matched with the first audio format to the external power amplifier equipment through the second ARC audio return channel. According to the HDMI switcher and the HDMI switching system provided by the embodiment of the invention, ARC audio return between the external power amplifier equipment and the external receiving device (such as a television) can be supported, 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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IPC IPC(8): H04N5/765H04N7/01
CPCH04N5/765H04N7/0125
Inventor 李树坚
Owner 深圳市玩视科技有限公司
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