External Display Activation via Multi-Mode Signal Detection
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Solution Overview
Problem
Existing systems fail to reliably activate external display devices using the CEC function, as they cannot activate devices set in operation modes that do not allow activation by this method, and there is no reliable detection of the external device's active state.
Innovation Solution
An apparatus and method that include a data transmitter for sending image and sound data, a signal transmitter for sending wireless control signals, and a device state detector to determine the external device's activity, using infrared signals, HDMI connections, and image capture to ensure activation and detection regardless of the external device's operation mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the CEC function is used to activate external display devices, then activation can be achieved for devices that support it, but it fails for devices set in operation modes that do not allow activation by this method
Solution Approach 1:
The system implements multiple activation methods (CEC function, infrared remote control signals, and direct signal transmission) within a single activation module, allowing the device to adapt to different external display device operation modes and ensure successful activation regardless of the target device's settings
Solution Approach 2:
The system dynamically changes the activation approach based on detected device states and operation modes, switching between different control signal types and transmission methods to match the external device's current configuration, thereby resolving the contradiction between reliable activation and compatibility
2Ease of operation
If the CEC function is used for activation, then the process is simple, but there is no reliable detection of the external device's active state
Solution Approach 1:
The system implements a feedback mechanism where the active state detector continuously monitors the external display device's state through multiple detection methods, providing real-time feedback to the control unit to confirm whether activation was successful, thereby ensuring both simple operation and accurate detection
Solution Approach 2:
The system performs preliminary detection of the external device's operation mode before activation, and conducts follow-up detection after activation attempts, allowing it to adjust its approach and reliably confirm the device's active state without complicating the user interaction
3Reliability
If multiple detection methods are implemented to ensure reliable activation, then detection accuracy improves, but device complexity increases
Solution Approach 1:
The system merges multiple detection functions (infrared detection, HDMI status detection, and image capture-based detection) into a unified active state detector module, and combines multiple activation methods into a single activation module, reducing overall system complexity while maintaining high reliability through integrated multi-functional components
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables reliable activation and detection of external display devices, ensuring they are active when needed, even if set to non-activatable modes, and automatically retries activation if initial attempts fail, improving display technology for meeting management devices.
Implementation Method 1
the signal transmitter includes an infrared transmitter for sending an infrared signal as the wireless control signal
Data Source
AI summary
An apparatus for activation control of an external display device for a meeting management device is disclosed. A method and a computer program product perform one or more functions of the apparatus. In one embodiment, the apparatus includes a data transmitter that sends at least one of image data and sound data from an information processing device to an external device that outputs at least one of an image and sound, a signal transmitter that sends a wireless control signal for activating or inactivating the external device, and a device state detector that determines whether the external device is active.