Input Detecting Device Rotary Dial Extended Section
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Solution Overview
Problem
Existing input devices for in-vehicle equipment, such as those with touch panels and dials, often lead to erroneous detection and increased processing loads due to the disabling of touch switch inputs when dials are rotated, limiting input operations.
Innovation Solution
An input detecting device with a rotary member and extended section that allows for precise detection of rotation states, reducing erroneous inputs by maintaining a stable position relation between the user's fingers and the liquid crystal display device, thereby minimizing software restrictions and processing loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the input through touch switches is disabled when dials are rotated, then erroneous detection is reduced, but input operation flexibility is limited and processing load increases
Solution Approach 1:
The input device is segmented into distinct functional zones: a rotary dial component and a touch switch component. The extended section creates a clear spatial separation between these functions, allowing the system to detect and differentiate between rotary operations and touch operations independently, thus maintaining detection accuracy while preserving input flexibility
Solution Approach 2:
The extended section acts as an intermediary element between the rotary dial and the touch panel. This intermediate structure physically separates the rotary operation zone from the touch input zone, enabling the detection system to distinguish between intentional rotary inputs and accidental touches, thereby reducing erroneous detection without disabling either function
2Reliability
If the input through touch switches is disabled when dials are rotated, then erroneous detection is reduced, but information processing load increases
Solution Approach 1:
The patent extracts the erroneous input problem from the software processing domain and relocates it to the hardware design domain. By incorporating the extended section into the physical structure, the system passively prevents erroneous touches through spatial design rather than requiring active software detection and filtering, thereby reducing processing load
Solution Approach 2:
The extended section provides self-service functionality by automatically preventing erroneous inputs through its physical presence and spatial configuration. This structural solution eliminates the need for complex software algorithms to detect and filter erroneous inputs, as the design itself inherently prevents the erroneous detection from occurring
Data Source
AI summary
An input detecting device includes an input section where position input is performed, a position detecting section included in the input section and detecting an input position regarding at least the position input, a rotary member mounted on the input section so as to be rotatable and including an operation surface on an outer peripheral surface thereof with which a rotating operation is performed, a rotation detection section that is rotatable together with the rotary member with respect to the input section and a position of which is detected by the position detecting section, and an extended section extending laterally from the operation surface so as to be disposed between the operation surface and the input section.