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hdmi switcher and hdmi switching system

A switching system and switcher technology, which is applied in the parts of the TV system, standard conversion, high-definition standard conversion, etc., can solve the problem of not being able to connect high-quality audio to power amplifier devices, not supporting eARC audio return, and power amplifier devices that cannot be played Problems with external receiving device audio, etc.

Active Publication Date: 2022-06-03
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 objectives, technical solutions and advantages of the embodiments of the present invention clearer, each embodiment of the present invention will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art can appreciate that, in the various embodiments of the present invention, many technical details are set forth in order for the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present application can be realized.

[0022] The first embodiment of the present invention relates to an HDMI switch. The core of this embodiment includes: a control unit and an audio processing unit connected to the control unit; the HDMI switch has a hot-plug interface channel, a first ARC audio return channel, the second ARC audio return channel; the au...

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Abstract

The embodiment of the present invention relates to the field of audio and video product design, and discloses an HDMI switcher. The audio processing unit is used to obtain the first audio format supported by the external power amplifier device, and send the first audio format to the control unit; the control unit is used to Sending the first audio format to the external signal source, so that the external signal source sends the first audio signal matching the first audio format to the external receiving device; the audio processing unit is also used to receive audio signals from the outside through the first ARC audio return channel The eARC audio signal of the receiving device matches the first audio format, and returns the eARC audio signal matching the first audio format to the external power amplifier device through the hot-swappable interface channel and the second ARC audio return channel. The HDMI switcher and HDMI switching system provided by the embodiments of the present invention can support eARC audio return between external power amplifier devices of different audio formats and an external receiving device (such as a TV) to obtain high-quality audio.

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 switch 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, TVs, A / V digital power amplifiers and other equipment. [0003] Although the traditional HDMI switcher will process the audio signal and then output it through optical fiber or speakers, or output it to an external receiving device (such as a TV), the sound quality after processing is still unsatisfactory. At present, the best sound quality equipment on the market is the power amplifier equipment. Users can directly return the uncompressed high-quality audio from the external receiving device (such as a TV) to the power amplifier equipment to enjoy a wond...

Claims

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Application Information

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Patent Type & Authority Patents(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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