Dynamic Character Indexing for Mobile Input

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Solution Overview

Problem

Hand-held mobile communication devices often have limited character-key-in methods that do not index all available characters in their vocabulary banks, making it impossible for users to add non-indexed characters, leading to inconvenience when special characters are needed.

Innovation Solution

A character add-on system comprising a character selection module, an indexing module, and a correlation module that allows users to select and index non-indexed characters from the device's vocabulary bank, enabling their use in character-key-in methods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a character-key-in method indexes only a limited number of characters from the vocabulary bank, then the device complexity is reduced and the key-in method is simpler to implement, but the adaptability and versatility of the device are worsened because users cannot input special or non-indexed characters

Engineering Contradiction:
Improvecharacter-key-in method complexityVSAvoidcharacter input capability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The character-key-in method is made dynamic by allowing users to customize and extend the indexed character set according to their specific needs. Users can add non-indexed characters from the vocabulary bank to create personalized indexing schemes, transforming the static, fixed character set into a flexible, adaptive system that evolves with user requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The character input system is segmented into two distinct layers: the core indexed characters provided by the manufacturer and the extended non-indexed characters added by users. This segmentation allows the base system to remain simple while enabling optional expansion, resolving the contradiction between simplicity and versatility by allowing users to activate only the segments they need.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If all characters in the vocabulary bank are indexed in the character-key-in method, then the adaptability and versatility are improved, but the device complexity and the difficulty of operation increase

Engineering Contradiction:
Improvecharacter coverageVSAvoidcharacter-key-in method usability
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

Instead of indexing all characters in the vocabulary bank (excessive action), the system indexes only the essential characters needed for general communication (partial action). Users can then selectively add additional characters beyond the basic set, achieving comprehensive coverage only when necessary, thus maintaining ease of operation for common tasks while providing the option for complete coverage when needed.

Inventive Principle:
Principle #16Partial or excessive action

3Device complexity

If users are forced to use substitute characters when non-indexed characters are needed, then the device complexity remains low, but the ease of operation and user convenience are worsened

Engineering Contradiction:
Improvesystem structureVSAvoidcharacter input convenience
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The system enables users to self-serve by allowing them to independently add and customize their own non-indexed characters without requiring manufacturer intervention or complex system reconfiguration. Users can autonomously extend their character sets to meet their specific needs, eliminating the inconvenience of using substitute characters while maintaining system simplicity.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS7386644B2System for adding extra characters to a vocabulary list of a selected character key-in method in hand-held mobile communication devices
Publication Date: 2008.06.10 INVECTEC APPLIANCES CORPORATION
  • US7386644B2 patent drawing
  • US7386644B2 patent drawing
  • US7386644B2 patent drawing

AI summary

A system to be used to add non-listed characters (i.e., characters not listed in character key-in methods) to the vocabulary banks of character-key-in methods used in hand-held mobile communication devices is disclosed. Users of a mobile communication device can select a character or characters which are built in the system but not indexed by a certain character-key-in method (that is, the characters cannot be keyed in with that character-key-in method), index the aforesaid characters, using the indexing system/method of the character-key-in method, and then add them to the key-in method's character-indexing system so that subsequent users of the mobile communication device can use said character-key-in method to key in said (originally non-indexed/listed) characters.