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Audio device for HDMI

An HDMI interface and equipment technology, which is applied to the components of color TVs, the components of TV systems, the input/output process of data processing, etc., and can solve the problem of TOSLINK connection not supporting sound format

Active Publication Date: 2020-08-04
DOLBY LAB LICENSING CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this third legacy setup is that some current (and future) sound formats are not supported by TOSLINK connections

Method used

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  • Audio device for HDMI
  • Audio device for HDMI
  • Audio device for HDMI

Examples

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Embodiment Construction

[0033] This document describes techniques for using the HDMI Audio Return Channel (ARC). In the following description, for purposes of explanation, numerous examples and specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to a person skilled in the art that the invention, as defined by the claims, may include some or all of the features of these examples, alone or in combination with other features described below, and may further include features described herein and modifications and equivalents of concepts.

[0034] In the following description, various methods, processes, and procedures are described in detail. Although certain steps may be described in a particular order, this order is primarily for convenience and clarity. Certain steps may be performed more than once, may occur before or after other steps (even if the steps are otherwise described in another order), and may occur in paralle...

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Abstract

The invention discloses an apparatus, method and system for connecting High-Definition Multimedia Interface (HDMI) devices. A loopback device connects between a first source device and a sink device on a first connection; a second source device connects to the sink device on a second connection. The loopback device manages the first connection, passes transition-minimized differential signaling (TMDS) or fixed-rate link (FRL) signals through to the sink device, and outputs audio received from the sink device on the audio return channel (ARC) or enhanced audio return channel (eARC). In this manner, audio that originates from any source device may be output without requiring a direct connection to the loopback device.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 62 / 608,827 and European Patent Application No. 17209739.6, both filed December 21, 2017, each of which is incorporated herein by reference in its entirety. Background technique [0003] The present invention relates to audio / visual systems, and in particular to interconnecting audio / video source devices, display devices and speakers. [0004] Unless otherwise indicated herein, the approaches described in this section are not prior art to the claims in this application and are not admitted to be prior art by inclusion in this section. [0005] The traditional audio / video setup is as follows. An audio / video receiver (known as an AVR or simply a receiver) will have a device such as a first source device (e.g. a set-top box) and a second source device (e.g. a Blu-ray player) to a sink device (eg, a display device such as a high-definition television (HDTV)...

Claims

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Application Information

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IPC IPC(8): H04N5/765H04N21/4363
CPCH04N5/765H04N21/43635G06F3/162H04N5/602H04R3/00
Inventor C·沃尔夫D·M·菲舍尔
Owner DOLBY LAB LICENSING CORP
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