Display Button Function Switching for Portable Device Control
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Solution Overview
Problem
Users face inconvenience when trying to adjust or operate output from a handheld device displayed on a larger screen, as they cannot use buttons on the display or a remote control after electrical connection, requiring them to physically interact with the handheld device, especially when it is far from the display.
Innovation Solution
A method and system that allow switching button functions on a portable device when connected to a display, involving detection of the connection, determination of switchable button functions, pairing buttons with operable functions, and storing this information for later control commands to be sent to the portable device for execution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If MHL technology is used to transfer images from handheld device to large screen, then visual effect is improved, but user cannot control handheld device using display buttons
Solution Approach 1:
The display buttons are designed to perform multiple functions: when handheld device is connected, they control the handheld device's operations (play, pause, stop, etc.); when not connected, they control the display itself. This multi-functionality resolves the contradiction by enabling remote control capability without adding separate control devices.
Solution Approach 2:
A button function switching mechanism acts as an intermediary between the display buttons and the handheld device. This mediator detects connection status and automatically switches button functions between controlling the display and controlling the handheld device, enabling seamless remote operation.
2Adaptability or versatility
If handheld device is placed far from display for portability, then portability is improved, but user convenience deteriorates
Solution Approach 1:
The display itself serves as an intermediary control interface between the user and the handheld device. When the handheld device is placed far from the user, the display buttons can still control the device's media playback functions, maintaining user convenience despite physical distance.
Solution Approach 2:
The system automatically detects connection status and switches button functions without user intervention. The display self-adapts to provide appropriate control functions based on whether a handheld device is connected, eliminating the need for manual configuration and maintaining ease of operation.
3Ease of operation
If display buttons control display functions, then display operation is improved, but handheld device control capability is lost
Solution Approach 1:
The button functions are made dynamic rather than static. The control unit automatically switches between display control mode and handheld device control mode based on connection detection. This dynamic adaptation allows the same buttons to serve different purposes, resolving the contradiction between specialized display operation and flexible device control.
Solution Approach 2:
The system periodically detects connection status and switches button functions accordingly. This periodic monitoring and switching enables the buttons to alternate between controlling the display and controlling the handheld device, providing both specialized display operation and adaptable device control at different times.
Data Source
AI summary
A method of switching button functions is disclosed. The method is used for switching the functions of buttons used to operate a display when the portable device is connected to the display. The method includes the following steps of: detecting whether the portable device is connected to the display; if yes, determining whether the functions of the buttons can be switched according to whether a button information is received; if yes, pairing each of the buttons with functions provided by the portable device; and storing a pairing information of each of the buttons and the functions provided by the portable device.