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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: 2017-01-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • ARC control method, control unit and display device
  • ARC control method, control unit and display device
  • ARC control method, control unit and display device

Examples

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Embodiment Construction

[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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Abstract

The embodiment of the invention discloses an ARC control method, a control unit and a display device. The ARC control method provided by the embodiment comprises steps of: acquiring a first format set of the display device, wherein the display device is provided with a receiving side interface of a high-definition multimedia interface HDMI, and the first format set is a format set of an audio to be played by the display device; acquiring a second format set, wherein the second format set is a format set where a power amplifying device supports decoding, the power amplifying device is connected with the display device through the HDMI, the power amplifying device is provided with a sending side interface of the HDMI, and the intersection of the first format set and the second format set comprises at least one format; according to the second format set, acquiring a target format from the first format set, wherein the format set belongs to the second format set; and transmitting the audio in the target format back to the power amplifying device through an HDMI ARC. According to the embodiment of the invention, a situation where the power amplifying device fails to play a 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 transparent transmission of 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 Inter...

Claims

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Application Information

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IPC IPC(8): H04N5/765H04N5/60
CPCH04N5/60H04N5/765
Inventor 李欣欣魏敦晓江小华
Owner HUAWEI TECH CO LTD
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