Analog Input Sensitivity Mapping via Polar Coordinate Conversion
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Solution Overview
Problem
There is a demand for reducing the computation load for reflecting, in output values of an operation apparatus based on operations performed by a user on an analog input device, the sensitivity set for the analog input device.
Innovation Solution
The operation apparatus includes an analog input device with a storage unit to store sensitivity settings, a generation unit to generate operation information based on user operations, and a transmission unit to transmit this information to an external processing apparatus, involving coordinate system conversions to reduce computational load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensitivity conversion is performed directly in orthogonal coordinate system, then measurement precision is maintained, but computation load increases
Solution Approach 1:
The patent introduces a polar coordinate system as an intermediary between the orthogonal coordinate system (for precise measurement) and the sensitivity conversion process. By converting orthogonal coordinates to polar coordinates, performing sensitivity conversion on the radial component, and then converting back to orthogonal coordinates, the system achieves both measurement precision and computational efficiency. The polar coordinate system acts as a mediator that simplifies the sensitivity conversion mathematics while preserving accuracy.
Data Source
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AI summary
A controller 6 includes a generation unit configured to generate operation information to be transmitted to an information processing apparatus 10. The generation unit acquires a value in an orthogonal coordinate system based on an operation amount of an analog input device (A). The generation unit converts the value in the orthogonal coordinate system to a value in another coordinate system (B). The generation unit converts the value in the another coordinate system on the basis of sensitivity of the analog input device indicated by setting information (C). The generation unit converts the value in the another coordinate system obtained after the conversion based on the sensitivity of the analog input device to a value in the orthogonal coordinate system that is to be set in the operation information (D).