External Screen Control via Portable Device Mediator
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Solution Overview
Problem
Portable devices with touch screens deactivate their screens after a predetermined time of inactivity, preventing them from responding to events generated by connected external devices.
Innovation Solution
An electronic device connects to an external device and determines if a screen control event is generated, transmitting corresponding screen control information to control the external device's screen settings, allowing for various control actions and power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the portable device deactivates the screen after a predetermined time of inactivity, then power consumption is reduced, but the device cannot respond to events generated by connected external devices
Solution Approach 1:
The patent introduces an external device as an intermediary that receives and processes screen control events generated by the portable device. When the portable device's screen is deactivated, the external device's screen remains active and can display information or receive input, allowing the system to respond to events even when the primary device is in a low-power state. This mediator approach resolves the contradiction by maintaining system responsiveness through an alternative component.
2Reliability
If the portable device keeps the screen activated during standby, then the device can respond to events from external devices, but battery power is consumed
Solution Approach 1:
The patent segments the screen functionality between two devices: the portable device and the external device. The portable device can deactivate its screen to conserve power, while the external device maintains an active screen to handle display and interaction tasks. This segmentation allows the system to maintain response capability without requiring the portable device's screen to remain active, thus reducing battery consumption while preserving functionality.
3Adaptability or versatility
If the portable device acts as an external electronic device after screen deactivation, then it can still perform operations, but the user cannot directly identify control over the screen
Solution Approach 1:
The patent implements feedback mechanisms where the portable device transmits screen control information to the external device, and the system provides notifications or visual indicators to inform users about the screen control status. This feedback loop ensures that even though the portable device's screen is deactivated, users remain aware of what is being displayed or controlled on the external device's screen, maintaining ease of operation and user awareness.
Data Source
AI summary
An electronic device and method of controlling a screen of an external electronic device are provided. The method includes connecting with the external electronic device; determining whether a screen control event for controlling the screen of the external electronic device is generated; and transmitting screen control information corresponding to the screen control event to the external electronic device, if the screen control event is generated.