HDMI Audio Device State Control via Signal Detection
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Solution Overview
Problem
Current audiovisual systems require users to perform multiple commands to change the operating state of devices with both audiovisual source and audio signal reproduction capabilities, leading to user complexity and potential misalignment with desired functionality.
Innovation Solution
A method and device for controlling the state of a device connected via HDMI, allowing automatic switching between audiovisual source mode and audio signal reproduction mode based on user commands, and enabling selective sleep mode activation to conserve resources while maintaining audio functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If automatic switching between audiovisual source mode and audio signal reproduction mode is implemented, then user complexity is reduced, but device complexity increases
Solution Approach 1:
The device automatically detects the presence of audio signals and switches modes without user intervention. The control unit monitors HDMI input signals and autonomously transitions between audiovisual source mode and audio signal reproduction mode, eliminating the need for manual mode switching while maintaining operational simplicity for users.
Solution Approach 2:
The system continuously monitors the HDMI connection status and audio signal presence, using this feedback to automatically adjust its operating mode. The control unit receives feedback about signal types and automatically selects the appropriate mode, creating a closed-loop control system that adapts to user needs without increasing perceived complexity.
2Use of energy by moving object
If selective sleep mode activation is implemented, then energy efficiency is improved, but control complexity increases
Solution Approach 1:
The device is divided into independently controllable functional modules: the audiovisual source transfer unit and the audio signal reproduction unit. Each unit can be placed in sleep mode independently through selective deactivation, allowing the system to conserve energy in inactive components while maintaining functionality in active components, thereby improving energy efficiency without requiring complex centralized control.
3Use of energy by moving object
If total sleep mode is activated, then energy consumption is reduced, but audio functionality is lost
Solution Approach 1:
The system dynamically adjusts its operational state based on real-time signal presence and user preferences. Rather than a static total sleep mode, the device can selectively activate or deactivate specific functional units (audio reproduction or audiovisual source transfer) depending on current usage requirements, enabling energy savings while preserving necessary audio functionality.
Data Source
AI summary
A method and a device for controlling the state of a device including means for transferring an audiovisual source and means for reproducing an audio signal, the device being connected to a television set by means of an HDMI connection in accordance with an HDMI specification version 2.0 or higher. The device is in an operating mode as an audiovisual source or for reproducing an audio signal coming from the HDMI connection. The device: receives a change command, goes into the mode of reproducing an audio signal coming from the HDMI connection if it is in the audiovisual source mode, checks whether an audio signal coming from the HDMI connection is present and, if so, reproduces the audio signal coming from the HDMI connection by the means for reproducing an audio signal.