arc control method, control unit and display device
A technology of a display device and a control method, which is applied in the multimedia field and can solve problems such as inability to play audio
Active Publication Date: 2019-06-21
HUAWEI TECH CO LTD
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Problems solved by technology
However, the power amplifier device does not support all the audio transmitted by the TV, which leads to the inability of the power amplifier device to play the received audio in some cases
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[0151] The embodiment of the present invention provides an ARC control method, a control unit and a display device, which are used to avoid the situation that the power amplifier device cannot play the received audio.
[0152] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0153] The terms "comprising" and "having" and any variations thereof in the description and claims of the present...
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Disclosed are an ARC control method, control unit, and a display device. According to an embodiment of the present invention, the method comprises: obtaining a first format set of a display device, the display device having a receiving side interface that is a High-Definition Multimedia Interface (HDMI), and the first format set being a set of formats of audio to be played by the display device; obtaining a second format set, the second format set being a set of formats for which decoding is supported by a power amplification device, the power amplification device and the display device being connected through a HDMI, the power amplification device having a sending side interface that is a HDMI, and the intersection of the first format set and the second format set comprising at least one format; obtaining a target format from the first format set according to the second format set, the target format belonging to the second format set; and returning audio of the target format to the power amplification device through a HDMI ARC. By means of embodiments of the present invention, a case in which a power amplification device cannot play received audio can be avoided.
Description
technical field [0001] The present invention relates to the field of multimedia technology, in particular to an ARC control method, a control unit and a display device. Background technique [0002] High Definition Multimedia Interface (HDMI) is a digital video / audio interface technology widely used in home audio-visual systems. Currently, the commonly used HDMI specification interface is version 1.4, which supports Audio Return Channel (ARC). When the TV and power amplifier are connected through HDMI, the TV can return the audio played locally on the TV to the power amplifier through ARC in HDMI. In practical applications, the ARC can support the return of pulse code modulation (Pulse Code Modulation, PCM) format audio (that is, decoded audio data), and can support Dolby Digital Plus (Dolby Digital Plus, DDP), Dolby Digital (Dolby Digital, DD) and other formats of audio return. [0003] At present, TVs generally use SONY / PHILIPS Digital Interface Format (Sony / Philips Dig...
Claims
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IPC IPC(8): H04N5/765H04N5/60
CPCH04N5/60H04N5/765
Inventor李欣欣魏敦晓江小华
OwnerHUAWEI TECH CO LTD