Display Device Boot State Feedback via Signal Timing
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Solution Overview
Problem
Users face inconvenience due to varying boot-up times and signal output delays in source devices, leading to incorrect determination of their operational state by sink devices, causing unnecessary user intervention.
Innovation Solution
A display device with a signal receiver and processor that acquires time information from connecting to a source device to displaying an image, and displays a user interface to inform the user of the source device's operational state, preventing incorrect determination by measuring and averaging signal reception times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sink device waits for the source device to output a content signal after boot-up, then the source device has time to initialize and output signals, but the user cannot determine the operational state of the source device during the waiting period
Solution Approach 1:
The sink device monitors the source device's boot-up process by detecting clock signals and content signals, then provides feedback to the user through a user interface that displays the current operational state (e.g., 'booting up', 'ready', or 'error'). This feedback mechanism allows users to understand what is happening during the waiting period without needing to manually check the source device.
Solution Approach 2:
The sink device acts as an intermediary between the source device and the user. Instead of requiring the user to directly observe the source device's status, the sink device mediates this information by monitoring signal reception and translating the technical state into user-friendly status messages displayed on the screen.
2Adaptability or versatility
If different source devices have different boot-up times and signal output delays, then each device can operate at its own pace, but the user experiences inconvenience due to varying wait times
Solution Approach 1:
The user interface dynamically updates to reflect the current operational state of the source device. Depending on whether the device is booting up, has finished initializing, or has output the content signal, the UI displays different status messages. This dynamic adaptation keeps the user informed throughout the varying wait times without requiring manual intervention.
3Measurement precision
If the sink device monitors the source device's signal output timing, then the operational state can be accurately determined, but the device complexity increases
Solution Approach 1:
The sink device uses its existing signal receiver and processor to monitor the source device's output. Rather than adding a separate monitoring system, the sink device leverages its own components to detect clock signals and content signals, measure timing, and determine operational state. This self-service approach minimizes additional complexity while achieving accurate measurement.
Data Source
AI summary
A display device includes a signal receiver connecting with one among a plurality of source devices, and configured to receive a content signal from the connected source device. A display is configured to display an image based on a content signal received through the signal receiver. A processor is configured to acquire time information corresponding to a time from a point of connecting with the source device to a point of displaying an image when the source device is connected to the signal receiver, and to control the display to display a user interface (UI) to indicate a connected state based on the acquired time information.