Wrist Device Cover and Motion Input Mechanism
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Solution Overview
Problem
Existing wrist devices lack an efficient mechanism to protect operation buttons while allowing for valid input operations without requiring the user to manually expose the buttons.
Innovation Solution
A wrist device with a rotatable bezel that serves as a cover, movable between a first position exposing operation buttons and a second position covering them, along with a processor that receives input operations from both button inputs and motion detectors when the bezel is in the second position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the bezel is rotated to cover the operation button, then the operation button is protected from external contact, but the user cannot input operations through the button
Solution Approach 1:
The patent introduces a second input detector (motion detector) as an intermediary input method that activates when the cover is in the closed position. This mediator allows operation input through motion detection rather than direct button contact, resolving the contradiction between button protection and input capability.
Solution Approach 2:
The patent dynamically switches between two input detection modes based on the cover position. When the cover is open, the first input detector (button) is active; when closed, the second input detector (motion detector) becomes active. This dynamic adaptation resolves the contradiction by providing context-appropriate input methods.
2Ease of operation
If the operation button is always exposed, then the user can easily input operations, but the button is vulnerable to external contact and damage
Solution Approach 1:
The system dynamically adjusts the active input detection method based on cover position. When the cover is open, button input is enabled; when closed, motion detection takes over. This dynamic switching allows the button to be protected while maintaining input capability through an alternative method.
Solution Approach 2:
The patent implements multiple input detection methods (button press and motion detection) that can function depending on the operational context. This multi-functionality ensures that input operations remain possible regardless of whether the button is exposed or covered, resolving the contradiction between accessibility and protection.
3Object-affected harmful factors
If a cover is added to protect the operation button, then protection from external contact is improved, but the device complexity increases
Solution Approach 1:
The cover serves multiple functions: it provides physical protection for the button and simultaneously acts as a positional indicator that triggers the switch between input detection methods. This multi-functionality reduces the need for additional protective components, mitigating the complexity increase.
Solution Approach 2:
The patent combines the protective function of the cover with the input detection control logic. The cover's position directly controls which input method is active, merging the protective mechanism with the operational control system and reducing overall device complexity.
4Object-affected harmful factors
If motion detection is used as the primary input method, then the button can remain covered for protection, but the precision of input detection may be reduced
Solution Approach 1:
The system dynamically selects the input detection method based on cover position. When the cover is open and precise button input is needed, the first input detector is active. When closed and motion detection is sufficient, the second input detector takes over. This dynamic selection optimizes precision for each operational context.
Solution Approach 2:
The patent changes the detection parameters based on operational context. Button press detection provides high-precision localized input when exposed, while motion detection provides sufficient precision for general operations when the button is protected, optimizing the precision-protection trade-off.
Data Source
AI summary
A wrist device includes: a first input detector that detects a first input operation; a second input detector that is different from the first input detector and that detects a second input operation; a cover that is movable between a first position and a second position, the cover in the first position exposing the first input detector, the cover in the second position covering the first input detector; and at least one processor that receives the first input operation and the second input operation. The processor receives the second input operation as a valid operation in a case where the cover is in the second position.