Display Device Automatic Peripheral Power-On via HDMI-CEC
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Solution Overview
Problem
Current HDMI systems require two remote controller operations to power on a sink device, such as a digital TV, when connected to a source device via HDMI, which complicates the initial setup and user experience.
Innovation Solution
A power control system that includes a remote controller, a display device, and peripheral devices connected via HDMI, allowing the display device to automatically power on connected peripheral devices by transmitting reset signals and using HDMI-CEC or remote controller instructions, based on learned power-on times to simplify the initialization process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display device transmits reset signals and uses HDMI-CEC or remote controller instructions to automatically power on peripheral devices, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The display device automatically detects connected peripheral devices and transmits power-on commands without requiring user intervention. The system self-manages the power-on sequence by monitoring device connections and initiating appropriate control signals through HDMI-CEC or remote controller instructions.
Solution Approach 2:
The patent introduces an intermediary power control system that mediates between the display device and peripheral devices. This intermediary component manages the complex communication protocols and signal transmission, shielding users from the underlying complexity while enabling automated power control.
2Adaptability or versatility
If the system learns and adapts to different peripheral device power-on times, then the adaptability is improved, but the loss of time increases
Solution Approach 1:
The system performs preliminary learning of peripheral device characteristics during the initial connection phase. By pre-acquiring power-on time parameters and device-specific behaviors during setup, the system prepares advance configuration data that enables faster automated control in subsequent operations.
Solution Approach 2:
The power control system implements feedback mechanisms that monitor the actual power-on responses of peripheral devices. This feedback information is used to refine and adjust the learned parameters, improving accuracy over time while reducing the need for extended learning periods.
Data Source
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AI summary
A display device includes a first communication unit connected to one or more peripheral devices, a second communication unit that communicates with a remote controller, and a processor. If the processor is initialized in response to a power-on instruction through the second communication unit, the processor verifies whether a first peripheral device, which is selected as a source device that provides at least one source of video and audio signals, among the one or more peripheral devices is powered on within a first threshold time. If the first peripheral device is not powered on within the first threshold time, the processor transmits a power-on request for allowing the remote controller to power on the first peripheral device, to the remote controller through the second communication unit.