Touch Sensing State Switching via Triggering Duration
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Solution Overview
Problem
Conventional smartphones require users to set and remember passwords to unlock the device, which is inconvenient and can be problematic if the touch display panel is faulty, leading to accidental operations.
Innovation Solution
A state-switching method for electronic devices using multiple sensing regions that detects signals and determines whether the triggering duration or gesture is consistent with a predetermined pattern to switch between states, allowing for secure and convenient unlocking without the need for passwords.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locked state with password input is used to prevent accidental operations, then security against accidental touches is improved, but user convenience and ease of operation deteriorates
Solution Approach 1:
The patent changes the parameter of touch recognition from simple presence detection to duration-based detection. By measuring the length of time a touch is held (short press vs. long press), the system distinguishes between accidental touches and intentional unlock attempts, eliminating the need for passwords while maintaining security.
Solution Approach 2:
The patent introduces dynamic time-based states for touch interaction. The system transitions between different operational states based on the duration of the touch gesture, allowing the same physical button to serve multiple functions (accidental touch ignore vs. intentional unlock) through temporal differentiation.
2Reliability
If a password-based locked state is implemented, then prevention of improper operations is improved, but device complexity increases due to password management
Solution Approach 1:
The patent extracts the password input mechanism from the unlock system and replaces it with a temporal gesture recognition system. By removing the password component entirely and relying solely on touch duration patterns, the system reduces complexity while maintaining security functionality.
3Speed
If conventional touch detection is used, then response to user input is improved, but inability to distinguish accidental touches from intentional gestures worsens
Solution Approach 1:
The patent adds the time duration parameter to touch detection, transforming the system from detecting only the presence of a touch to detecting both presence and duration. This additional temporal dimension enables precise differentiation between accidental brief touches and intentional longer-held gestures.
Data Source
AI summary
A switching method for an electronic device having sensing regions is mentioned. The switching method is configured to detect signals received by the electronic device, so as to switch the states of the electronic device. The switching method comprises receiving a first signal at a first moment and receiving a second signal at a second moment, wherein the first signal is generated by touching a first sensing region and the second signal is generated by touching a second sensing region; measuring a triggering duration and determining whether the triggering duration is consistent with a predetermined duration, when the first signal and the second signal are inputted simultaneously; switching the electronic device from a first state to a second state, if the triggering duration is consistent with the predetermined duration; and maintaining the electronic device in the first state, if the triggering duration is not consistent with the predetermined duration.