Mobile Device Call Log Line Segmentation

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Solution Overview

Problem

Mobile device users face challenges in managing and tracking outgoing calls across multiple communication lines, as existing systems often default to a single active line, making it difficult to select and log calls on specific lines, especially for business and personal use scenarios.

Innovation Solution

A system and method for a mobile device that provides a dynamic display for identifying and selecting multiple communication lines for outgoing calls, along with a call log feature that tracks call activity by line, allowing users to easily switch between lines and log calls on different communication lines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a single active line is used for outgoing calls, then the device operation is simple, but the user cannot track calls by specific communication line

Engineering Contradiction:
Improvesimplicity of device operationVSAvoidcall tracking information by line
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The call log is segmented into separate entries for each communication line, allowing users to track calls by line while maintaining a unified interface. Each line has its own call log section that can be accessed independently, resolving the contradiction between simplicity and detailed tracking.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system adds a dimensional layer by organizing call logs according to communication lines without changing the basic call interface. Users can view calls grouped by line (first dimension) or by individual entries (second dimension), providing both simplicity and detailed information access.

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

2Adaptability or versatility

If multiple communication lines are supported, then the adaptability is improved, but the device complexity increases

Engineering Contradiction:
Improvemulti-line communication capabilityVSAvoidline selection and management complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The call log interface is designed to be universal, handling multiple communication lines through a single unified structure. The same interface used for single-line devices also supports multi-line devices, eliminating the need for separate complex interfaces for each line.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system pre-organizes communication lines into a selectable structure before calls are made. Users can pre-select which line to use for outgoing calls, and the call log automatically groups entries by line, reducing the complexity of line management during actual usage.

Inventive Principle:
Principle #10Preliminary action

3Loss of information

If call log data is organized by communication line, then the information accessibility is improved, but the display complexity increases

Engineering Contradiction:
Improvecall information accessibility by lineVSAvoidcall log display structure
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The call log display is segmented into line-based sections, with each section containing calls for a specific communication line. This segmentation allows easy filtering and access by line while maintaining a consistent, predictable display structure that does not significantly increase complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system provides detailed line-specific call information only when needed, rather than displaying all call details simultaneously. Users can access partial information (summary by line) or complete information (individual call entries) based on their needs, reducing display complexity while maintaining information accessibility.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentEP2378745B1Systems and methods for providing a call log on a mobile device
Publication Date: 2014.12.24 BLACKBERRY LTD
  • EP2378745B1 patent drawingFigure 1
  • EP2378745B1 patent drawingFigure 2
  • EP2378745B1 patent drawingFigure 3

AI summary

A system and method for providing on a mobile device a call log for identifying call activity associated with a plurality of communication lines. The method comprises: displaying a call screen on a display of the mobile device; displaying call log data within a call log field on the display; wherein the call log data comprises at least one call entry. Each call entry comprises: call data corresponding to a third party telephone number, and a line indicia, wherein each line indicia uniquely corresponds to one of the communication lines.