Portable Terminal Hand Position Detection for Key Layout Adjustment

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Solution Overview

Problem

Existing portable terminal devices require additional operations, such as drag, to change the size of the operation key group, which affects operability.

Innovation Solution

Incorporating a hold position detection unit in the terminal main body to automatically adjust the display screen of the operation key group based on the user's hand position, eliminating the need for additional operator input.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the operation key group size is changed by additional operations such as drag, then the operability is improved, but the operation complexity increases

Engineering Contradiction:
ImproveoperabilityVSAvoidoperation complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system automatically detects the user's hand hold position on the terminal body and autonomously adjusts the operation key group display accordingly, eliminating the need for manual drag operations. The hold position detection unit captures user interaction data, and the display control unit automatically reconfigures the key group layout based on this data, making the system self-adjusting rather than requiring user-initiated size changes.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements a feedback loop where the hold position detection unit continuously monitors the user's hand position, feeds this information to the display control unit, which then adjusts the operation key group display. This closed-loop feedback mechanism ensures the display adapts dynamically to user needs without requiring explicit size change commands from the user.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If the operation key group size is changed step by step through additional operations, then the adaptability is improved, but the time consumption increases

Engineering Contradiction:
ImproveadaptabilityVSAvoidtime consumption
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system pre-configures multiple operation key group layouts corresponding to different hold positions. When the user's hand position is detected, the system immediately switches to the pre-prepared layout that matches the detected position, eliminating the need for step-by-step adjustment. This preliminary preparation of multiple configurations enables rapid adaptation without time-consuming adjustments.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The operation key group display transitions from a static, fixed layout to a dynamic, automatically adjusting layout. The display control unit continuously monitors hold position data and dynamically reconfigures the key group arrangement in real-time, allowing the system to adapt to changing user needs instantly rather than requiring sequential manual adjustments.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9013397B2Portable terminal device and key arrangement control method
Publication Date: 2015.04.21 LENOVO INNOVATIONS LTD (HONG KONG)
  • US9013397B2 patent drawing
  • US9013397B2 patent drawing
  • US9013397B2 patent drawing

AI summary

A hold position detection unit for detecting a position held by an operator's hand is provided in at least both side portions of a terminal main body. And a display screen of a key group displayed on an operation display part is changed based on hold data indicating the position held by the operator's hand that is detected by the hold position detection unit.