Hybrid Keypad Segmentation for Mobile Data Entry

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Solution Overview

Problem

Manual data entry in mobile enterprise devices is labor-intensive and requires precision, which can be time-consuming and error-prone, especially when handling alphanumeric and numeric data within various business applications.

Innovation Solution

A hybrid keypad design with separate arrays for alpha and numeric keys, along with multifunctional capabilities, allows for intuitive data entry without shifting, enabling efficient input of alphanumeric information and activation of functions, facilitating easier interaction with Mobile ERP applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a single keypad is used for both alpha and numeric data entry, then the device structure remains simple, but data entry efficiency decreases and user fatigue increases

Engineering Contradiction:
Improvedata entry efficiencyVSAvoidkeypad structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent divides the keypad into separate alpha and numeric key sections, allowing dedicated keys for each data type. This segmentation enables faster data entry without requiring mode switching, directly resolving the contradiction between entry efficiency and structural simplicity by organizing complexity into functional segments.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the keypad are assigned specialized functions - the alpha section for letter input and the numeric section for number input. This local quality approach optimizes each region for its specific purpose, improving overall productivity while maintaining a unified device structure.

Inventive Principle:
Principle #3Local quality

2Loss of time

If mode switching is required for alphanumeric input, then the keypad can be compact, but data entry time increases and precision decreases

Engineering Contradiction:
Improvedata entry timeVSAvoidinput precision
Core Design Contradiction:
Loss of timeVSEase of operation

Solution Approach 1:

By segmenting the keypad into dedicated alpha and numeric zones, the patent eliminates the need for mode switching. Users can directly access the required key type without interrupting their input flow, thereby reducing data entry time and maintaining precision throughout the input process.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The keypad layout pre-positions both alpha and numeric keys in simultaneously accessible locations. This preliminary arrangement allows users to switch between letter and number input without moving their hand or changing modes, eliminating time loss and maintaining operational precision.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If a hybrid keypad with separate arrays is implemented, then data entry precision improves, but the keypad area increases

Engineering Contradiction:
Improvedata entry precisionVSAvoidkeypad area
Core Design Contradiction:
Measurement precisionVSArea of stationary object

Solution Approach 1:

The patent segments the keypad into compact alpha and numeric sections that can be efficiently arranged within a limited space. This segmentation allows for dedicated precision input zones without requiring excessive overall area, as each segment is optimized for its specific function rather than requiring a full QWERTY layout for all inputs.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent utilizes vertical arrangement and multi-row configurations to pack both alpha and numeric keys into a compact footprint. By organizing keys in multiple dimensions rather than a single linear row, the design achieves high precision input capability within a constrained area.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS8781520B2Mobile device having hybrid keypad
Publication Date: 2014.07.15 HAND HELD PRODS INC
  • US8781520B2 patent drawing
  • US8781520B2 patent drawing
  • US8781520B2 patent drawing

AI summary

A mobile device comprising: a communication module for sending and receiving radio communications; a display for displaying information; a processor for controlling software and firmware operation; a keypad for entering data to the processor comprising an array of alpha keys for alpha data entry and an array of numeric keys for numeric data entry, wherein entry of alpha data does not require use of numeric keys and numeric data does not require use of alpha keys; and a housing encompassing the communication system, display, image processor and keypad configured to facilitate an operator holding the mobile device in one hand and keypad data entry with the other hand.