Display Device External Device Recognition Logic
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Solution Overview
Problem
Conventional display devices fail to accurately recognize external electronic devices when they are newly connected after the display device has been turned off, leading to malfunctions in integrated remote controllers.
Innovation Solution
A display device equipped with a first communication unit, a database to store device information of connected external electronic devices, and a processor that compares stored device information with newly transmitted information to determine if an external electronic device has changed, and resets the remote controller accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the display device uses conventional logic for recognizing external electronic devices only when turned on, then the device complexity is reduced, but the reliability of remote controller operation deteriorates when devices are connected after power-off
Solution Approach 1:
The display device performs preliminary recognition of external electronic devices during the power-off state by monitoring communication interfaces. When a device is connected before the display device is turned on, the system captures and stores the device information in advance, so that when the display device powers on, the remote controller is already properly configured to control the newly connected device without requiring additional recognition logic during the on-state.
2Measurement precision
If the display device continuously monitors for external electronic devices even when turned off, then the accuracy of device recognition is improved, but the energy consumption increases
Solution Approach 1:
The communication interface performs self-service by automatically detecting and capturing device connection information without requiring active processing power. The system uses passive monitoring of communication interface states to identify when external devices are connected, storing the detected device information in memory during the power-off state. This approach maintains high recognition accuracy while consuming minimal energy, as the detection relies on interface state changes rather than continuous active scanning.
Data Source
AI summary
A display device and a method for controlling same are disclosed. The display device compares device information of an external electronic device stored in the display device with device information transmitted by the external electronic device, thereby being capable of accurately recognizing a change in the external electronic device communicatively connected with the display device in a state in which the display device is turned off.