Input Device False Sensing Reduction via Multi-Region Data Inversion
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Solution Overview
Problem
Touch sensors in portable information terminals and game machines often experience false sensing due to unintentional contact, which reduces their accuracy and reliability.
Innovation Solution
The design of an input device with multiple regions that obtain and process positional data, converting and combining it to minimize false sensing by using logical conjunction and inversion of data, thereby enhancing sensing accuracy and reducing false inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a touch sensor is used to detect input, then sensing accuracy in minute regions is improved, but false sensing occurs due to unintentional contact
Solution Approach 1:
The input device is divided into multiple independent sensing regions (first region and second region) that can detect touches separately. Each region has its own sensing elements and processing circuitry, allowing independent detection and reduction of false sensing through regional differentiation.
Solution Approach 2:
The patent inverts the second positional data vertically or horizontally to create third positional data. This inversion allows the system to compare original and inverted data patterns to distinguish intentional input from unintentional contact, as false sensing patterns will not match the inverted pattern.
2Reliability
If multiple sensing regions are used to reduce false sensing, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines the processing of multiple regions by using logical conjunction (AND operation) of first positional data and third positional data (inverted second positional data) to generate fourth positional data. This merging approach integrates multiple sensing regions while using efficient logical operations to reduce overall system complexity.
Solution Approach 2:
The system creates a copied and inverted version of the second positional data as third positional data. This copying approach allows comparison between original and inverted patterns without requiring completely separate processing systems, reducing complexity while maintaining reliability.
3Measurement precision
If positional data from multiple regions is combined using logical conjunction, then sensing accuracy is improved, but processing complexity increases
Solution Approach 1:
The patent applies parameter changes by inverting the second positional data (changing its orientation parameter) to create third positional data. This transformation allows the system to use simple logical conjunction operations instead of complex pattern recognition algorithms, reducing processing complexity while maintaining high sensing accuracy.
Data Source
AI summary
An input device making little false sensing is provided. An input device capable of outputting a signal in which input data in a plurality of regions are combined is provided. The input device includes a first region and a second region which are provided so as to face each other. The input device includes a means for obtaining first positional data input to the first region, a means for obtaining second positional data input to the second region, a means for converting the second positional data into third positional data, a means for obtaining fourth positional data, and a means for outputting a signal in accordance with the fourth positional data.