Magnetic Sensing Dial Device for Versatile Input Operations
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Solution Overview
Problem
Existing dial devices lack the capability to receive diverse and efficient input operations, limiting their functionality and user convenience.
Innovation Solution
A magnetic sensing dial device is designed with a base, cover, column, magnets, and a signal processing circuit, where the magnets surround the column and a magnetic sensor on the column detects changes in magnetic signals to determine rotation direction and trigger pressing signals, enabling multiple input modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a dial device is connected to an electronic product, then the user can input confirmation and selection commands, but the device lacks the capability to receive diverse and efficient input operations
Solution Approach 1:
The patent replaces traditional mechanical sensing mechanisms with a magnetic sensing system. Magnets are embedded in the dial device while magnetic sensors are placed in the electronic product, eliminating complex mechanical contacts and switches. This substitution enables diverse input operations (rotation, pressing, sliding) without proportionally increasing mechanical complexity.
Solution Approach 2:
The magnetic sensing system is designed to detect multiple types of operations through a single sensing mechanism. The same magnets and magnetic sensors can detect rotation direction, pressing depth, and sliding movements, allowing one system to handle multiple input modes (confirmation, selection, scrolling) without requiring separate mechanical structures for each function.
2Ease of operation
If magnetic sensors are used to detect rotation and pressing operations, then input functionality is enhanced, but the device structure becomes more complex
Solution Approach 1:
The patent divides the sensing system into two separate components: magnets embedded in the dial device and magnetic sensors placed in the electronic product. This segmentation allows each component to be optimized independently - the magnets can be简单地 embedded in the dial structure while the sensors are integrated into the product's circuit board, reducing overall structural complexity while maintaining enhanced input functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device enhances input functionality and convenience by accurately detecting rotation and pressing operations, providing diverse input modes through magnetic sensing technology.
Implementation Method 1
a magnetic sensor, and a signal processing circuit. The cover includes a cap portion and a side wall vertically extending from the cap portion. The column is surrounded by the side wall and includes a first end for connecting to the base and a second end for connecting to the cover. The magnets surround the column and are disposed on the base or the cover. The magnetic sensor is disposed on a side surface of the column.
Implementation Method 2
When the cover rotates relative to the base, the magnets will rotate around the column and the magnetic sensor, and the signal processing circuit will sense a plurality of magnetic signals having different values accordingly.
Data Source
AI summary
A dial device includes a base, a cover, a column, a magnet, a magnetic sensor and a signal processing circuit. The cover includes a cap portion and a side wall vertically extending from the cap portion. The column surrounded by the wall includes a first end for connecting to the base and a second end for connecting to the cover. The magnet surrounds the column and is disposed on the base or the cover. The magnetic sensor is disposed on a side surface of the column and coupled to the signal processing circuit. When the cover rotates relative to the base, the magnet rotates around the magnetic sensor, and the magnetic field strengths sensed by the magnetic sensor vary. The signal processing circuit determines the relative rotation direction between the cover and the base according to the difference of the magnetic field strengths sensed by the magnetic sensor.