Optimized Font File Generation for Scalable Multimedia Text

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Solution Overview

Problem

Existing multimedia file systems face challenges in scalability and searchability of textual information due to the use of bitmap representations, which are not easily adaptable to changes in image frame size and require large memory resources, especially for languages with unique symbols.

Innovation Solution

The development of optimized font files specifically tailored to the text data within multimedia files, reducing file size by including only necessary characters and dynamically generating font files based on time segments, allowing for scalable and searchable textual information display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If bitmap representations are used to store text information, then storage efficiency is improved, but scalability and searchability deteriorate

Engineering Contradiction:

Improvestorage efficiencyVSAvoidscalability

Core Design Contradiction:

Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The patent extracts only the necessary character glyphs from the complete font file based on the actual text content in the multimedia file. By identifying which characters are actually used and extracting only those glyphs along with their contour data, the system achieves both compression (reducing font file size) and maintains scalability (vector-based representation).

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies local quality by customizing the font file contents to match the specific text requirements of each multimedia file. Different multimedia files receive different optimized font files containing only their specific character sets, rather than using a universal complete font file. This localized optimization reduces memory usage while preserving vector scalability for each specific case.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If complete font files are included to support all characters, then character coverage is improved, but memory consumption increases

Engineering Contradiction:

Improvecharacter coverageVSAvoidmemory consumption

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The system extracts only the necessary character glyphs from complete font files by analyzing the text content of multimedia files. It identifies which characters are actually present and extracts only those glyphs with their contour data, excluding all unused characters. This dramatically reduces memory consumption while ensuring complete coverage of the actually needed character set.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent performs preliminary analysis of the text content in multimedia files before generating the optimized font file. By pre-identifying which characters will be needed and preparing an optimized font file containing only those characters, the system avoids loading unnecessary character data into memory during playback, thus reducing memory consumption while ensuring character coverage is sufficient.

Inventive Principle:

Principle #10Preliminary action

3Ease of manufacture

If bitmap text is used, then rendering simplicity is improved, but adaptability to frame size changes deteriorates

Engineering Contradiction:

Improverendering simplicityVSAvoidadaptability to frame size

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent replaces the mechanical bitmap rendering system with a vector-based contour description system. Instead of storing fixed-resolution bitmap images of text, the system stores mathematical contour descriptions that can be dynamically rendered at any resolution. This substitution maintains rendering simplicity through automated vector rendering while achieving full adaptability to different frame sizes and resolutions.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Adaptability or versatility

If vector-based font files are used, then scalability is improved, but file size increases for languages with unique symbols

Engineering Contradiction:

ImprovescalabilityVSAvoidfile size

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

For languages with unique symbols, the system extracts only the specific glyphs that appear in the multimedia file's text content, rather than including the complete set of characters from the font. By analyzing the actual text and extracting only the necessary character contours, the system maintains vector-based scalability while significantly reducing the font file size to match the actual character requirements.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies local quality by creating customized font files tailored to each specific multimedia file's text content. Instead of using a universal font file containing all possible characters, each multimedia file receives an optimized font file containing only the characters actually present in its text. This localized approach maintains full scalability for the needed characters while minimizing file size by excluding unnecessary character data.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS8289338B2Systems and methods for font file optimization for multimedia files

Publication Date: 2012.10.16 DIVX LLC

AI summary

Methods and systems of generating and displaying textual information for a multimedia file are provided. An optimized font file is created that matches the text data of the multimedia file and optionally a number of predetermined text characters. The optimized font file may also be further configured to conform to a specific memory and/or timing constraint.