Dynamic Partitioning of Refreshable Braille Display for Contextual Footnotes

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Solution Overview

Problem

Refreshable braille displays currently disrupt the flow of primary content when displaying ancillary alphanumeric content, either by embedding it within the primary text or providing it out of context, limiting the reading experience for visually impaired users.

Innovation Solution

A software-based method dynamically partitions a refreshable braille display to simultaneously output primary and ancillary alphanumeric content, using separate partitions for each, allowing users to navigate them independently, and reverts to a single partition configuration when ancillary content is not present.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If ancillary content is displayed after primary content, then all braille cells can be allocated to primary content, but the footnote becomes out of context and loses pertinence

Engineering Contradiction:

Improvecontextual relevance of ancillary contentVSAvoidreading flow of primary content

Core Design Contradiction:

Loss of informationVSEase of operation

Solution Approach 1:

The braille display is segmented into multiple partitions, with at least a first partition for primary content and a second partition for ancillary content. This allows simultaneous display of both content types without interrupting the reading flow, as each partition can be independently navigated while maintaining contextual relevance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The display transitions from a single-dimensional sequential display to a multi-dimensional partitioned display. By introducing spatial partitioning across multiple lines or sections of the braille display, the system enables concurrent presentation of primary and ancillary content, preserving contextual relationships while maintaining reading efficiency.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Loss of information

If ancillary content is embedded into primary text, then contextual relevance is maintained, but the natural reading flow of primary content is disrupted

Engineering Contradiction:

Improvecontextual relevance of ancillary contentVSAvoidreading speed of primary content

Core Design Contradiction:

Loss of informationVSProductivity

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The partitioned display structure acts as an intermediary between primary and ancillary content, allowing users to access ancillary information without directly interrupting the primary content flow. Users can navigate to ancillary content in the second partition when needed and return to the first partition, maintaining reading productivity while preserving contextual access.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Loss of information

If the braille display is partitioned to show ancillary content, then contextual reading is enabled, but device complexity increases

Engineering Contradiction:

Improvecontextual relevance of ancillary contentVSAvoidsoftware control mechanism

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The partitioning configuration is dynamic rather than static. The system automatically adjusts the number and allocation of partitions based on the presence and type of ancillary content. When ancillary content is present, the display dynamically creates additional partitions; when absent, it reverts to a single-partition mode, simplifying the control mechanism while enabling contextual display when needed.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters (number of partitions, braille cell allocation) based on content analysis. By monitoring the presence of ancillary content and adjusting display parameters accordingly, the system enables contextual reading without requiring complex permanent hardware modifications, using software-based parameter adjustment instead.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12046149B1Dynamic partitioning of a refreshable braille display based on presence of ancillary alphanumeric content

Publication Date: 2024.07.23 FREEDOM SCI INC

AI summary

A method of automatically partitioning a refreshable braille display based on presence of pertinent ancillary alphanumeric content. In an unpartitioned configuration, every braille cell of the refreshable braille display is used to output the primary alphanumeric content. When the refreshable braille display outputs a segment of the primary alphanumeric content having associated ancillary alphanumeric content, such as a footnote or a comment, the braille display is automatically partitioned into a first partition and a second partition. The braille cells of the first partition are allocated for outputting the primary alphanumeric content, while the braille cells of the second partition are allocated for outputting the ancillary alphanumeric content.