Content Playback Device Automatic Mapping Evaluation Scale Selection

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Solution Overview

Problem

The challenge lies in efficiently playing back highly realistic media content across different playback environments due to differences in encoding schemes and control methods, which complicates the manual setting of mapping evaluation scales as the number of media data types increases.

Innovation Solution

A content playback system that includes a device table production unit, a media table production unit, and a mapping determination unit to automatically determine the appropriate device for media data playback by using a conversion table to set a mapping evaluation scale based on sensibility effect labels and formats, minimizing relative errors between device parameters and media data requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual setting of mapping evaluation scale is used, then playback accuracy in specific environment is achieved, but work complexity increases as number of media data types increases

Engineering Contradiction:

Improvemapping evaluation scale accuracyVSAvoidwork complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The system enables self-service by automatically determining the mapping evaluation scale through algorithmic processing. The determination unit automatically extracts combination patterns, calculates relative errors, and selects optimal devices without requiring manual intervention, thus resolving the contradiction between accuracy and work complexity

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical process of setting mapping evaluation scales with an automated computational system. The determination unit uses algorithms to process media data formats, compare device parameters, and automatically determine optimal mappings, substituting human manual work with automated mechanical/computational processes

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If manual setting of mapping evaluation scale is used, then playback accuracy in specific environment is achieved, but time consumption increases as number of media data types increases

Engineering Contradiction:

Improvemapping evaluation scale accuracyVSAvoidtime consumption

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary action by pre-establishing the device table with device parameters and formats before actual playback. The determination unit then quickly matches incoming media data against this pre-prepared table, avoiding time-consuming manual configuration for each playback instance while maintaining accuracy

Inventive Principle:

Principle #10Preliminary action

3Productivity

If automatic device selection is implemented, then work efficiency is improved, but playback precision may be compromised

Engineering Contradiction:

Improvework efficiencyVSAvoidmapping evaluation scale accuracy

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The system implements feedback by calculating the relative error between device parameters and mapping evaluation scales. The determination unit uses this error metric as feedback to evaluate different combination patterns and select the one with minimum error, ensuring that automated selection maintains or improves upon manual configuration accuracy

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent uses parameter changes by varying the mapping evaluation scale parameters based on the specific combination of media data format and device capabilities. The system dynamically adjusts parameters to minimize relative error, allowing automatic selection to achieve optimal precision for each specific playback scenario rather than using fixed parameters

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS11805294B2Content playback device, content playback method and content playback program

Publication Date: 2023.10.31 NIPPON TELEGRAPH & TELEPHONE CORP

AI summary

The present disclosure is intended to enable playback of media data corresponding to a sensibility effect set in advance. A content playback device (91) of the present disclosure includes: a device table production unit (10) holding a device table in which a format of media data that can be played back and a device parameter are determined for each device; a media table production unit (20) configured to acquire metadata including the format and a sensibility effect label of the media data, determine a mapping evaluation scale that is a device parameter corresponding to the sensibility effect label, and produce a media table in which the mapping evaluation scale and the format are determined for each media data; and a mapping determination unit (30) configured to extract, based on the formats, a combination pattern of a device on which media data can be played back and the media data, select, from among extracted combination patterns, a combination pattern for which a relative error between the device parameter and the mapping evaluation scale is minimum, and select a device that is an output destination of the media data.