Information Device Transport Stream Reproduction Without Conversion

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Solution Overview

Problem

Information devices struggle to reproduce video data in transport stream format without converting it into another format, such as mp4, leading to inefficiencies and increased user operation time.

Innovation Solution

An information device with a communication part and a controller that downloads and processes video data to create distribution data in the same transport stream format, allowing for streaming reproduction without format conversion, and includes features like standby transmission of reproduction list data and periodic data updates to maintain continuous video playback.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If video data in transport stream format is downloaded and converted into another format (e.g., mp4) for reproduction, then the video can be reproduced by reproduction software, but the user operation time and processing load increase

Engineering Contradiction:

Improvevideo reproduction capabilityVSAvoiduser operation time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent creates distribution data that is a copy of the original transport stream video data, allowing the reproduction software to directly play the copied data without format conversion. This resolves the contradiction by enabling video reproduction while eliminating the time-consuming conversion process.

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The system performs preliminary processing by creating distribution data from the downloaded transport stream in advance, so that when reproduction is needed, the data is already prepared in a playable format. This eliminates the need for real-time conversion and reduces user operation time.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If video data is converted into another format before reproduction, then compatibility with reproduction software is improved, but the device complexity and processing load increase

Engineering Contradiction:

Improveformat compatibilityVSAvoidprocessing complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Instead of converting the video format, the system creates a copy of the transport stream data with added metadata (distribution data), maintaining format simplicity while achieving compatibility. This reduces device complexity compared to full format conversion.

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent segments the video data into manageable chunks and creates corresponding distribution data for each segment, allowing the reproduction software to process the data in smaller, more efficient units without requiring complex format conversion capabilities.

Inventive Principle:

Principle #1Segmentation

3Duration of action of stationary object

If the reproduction list data is continuously transmitted to the reproduction part, then the video playback can be maintained, but the system responds slowly to communication instability or user actions

Engineering Contradiction:

Improvecontinuous playbackVSAvoidresponse to communication instability

Core Design Contradiction:

Duration of action of stationary objectVSReliability

Solution Approach 1:

The system transmits reproduction list data periodically rather than continuously, allowing the reproduction part to maintain playback while the system can detect communication instability or user actions between periods. This improves reliability by enabling timely response to changing conditions.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system implements feedback mechanisms where the reproduction part can signal the controller about playback status, communication issues, or user actions. This feedback loop allows the system to adapt the data transmission strategy and maintain reliable playback despite communication instability.

Inventive Principle:

Principle #23Feedback

4Loss of information

If the reproduction list data is transmitted immediately without standby, then the data freshness is improved, but video termination occurs due to unstable communication or user actions

Engineering Contradiction:

Improvedata freshnessVSAvoidvideo playback continuity

Core Design Contradiction:

Loss of informationVSReliability

Solution Approach 1:

The system transmits reproduction list data with a standby delay, providing a cushion that allows time to detect and respond to communication instability or user actions before the data becomes stale. This prior cushioning prevents video termination while maintaining acceptable data freshness.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentEP3293977B1Information device

Publication Date: 2020.04.29 FUNAI ELECTRIC CO LTD

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AI summary

An information device (100) is provided, including a communication part (1), communicating with an external device (G); and a controller (3), downloading video data from the external device (G) via the communication part (1) and executing an application (6). The application (6) creates distribution data having the same format as the video data from the video data and reproduction list data, and to reproduce the distribution data. A local server (62) in the application transmits the distribution data and the reproduction list data to a reproduction part (5). The controller (3) puts transmission of the reproduction list data from the local server (62) to the reproduction part on standby until the reproduction list data is updated based on the distribution data, or adding reproduction-continuation video data to update the reproduction list data until the reproduction list data is updated based on the distribution data.