SDI Signal Processing Apparatus Payload Information Handling

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Solution Overview

Problem

Existing signal processing methods for SDI signals fail to accurately handle payload information, leading to incorrect display settings due to inconsistent addition or removal of payload information, resulting in unintended updates and display settings.

Innovation Solution

A signal processing apparatus and method that determines the signal type and acquires payload information to decide whether to use previously determined payload information or default information for display settings, based on the state of payload information acquisition and signal type, ensuring correct payload information is used only when allowed to be transferred.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If payload information is transferred from previous state to maintain display settings, then display consistency is improved, but incorrect display settings occur when signal type changes

Engineering Contradiction:
Improvedisplay setting consistencyVSAvoiddisplay setting accuracy
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The patent implements dynamic payload information handling by determining whether to transfer payload information based on current signal type and acquisition state. The system adapts its behavior: transferring payload information when signal type remains unchanged to maintain consistency, and clearing it when signal type changes to ensure accuracy. This dynamic approach resolves the contradiction between stability and reliability.

Inventive Principle:
Principle #15Dynamics

2Duration of action of stationary object

If payload information is continuously added to SDI signal, then display setting is maintained, but incorrect payload information is repeated when output apparatus alternates adding/removing payload information

Engineering Contradiction:
Improvepayload information continuityVSAvoidpayload information correctness
Core Design Contradiction:
Duration of action of stationary objectVSReliability

Solution Approach 1:

The patent employs feedback mechanisms by continuously monitoring the acquisition state of payload information and the signal type. The system uses this feedback to intelligently decide whether to transfer previous payload information or acquire new information. This feedback loop ensures that payload information is maintained only when correct and signal type is unchanged, resolving the contradiction between continuity and correctness.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If payload information acquisition is performed for every SDI signal, then correct information is obtained, but processing complexity increases when signal type changes frequently

Engineering Contradiction:
Improvepayload information accuracyVSAvoidsignal processing complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies partial action by selectively transferring payload information instead of always acquiring new information. When signal type remains unchanged and previous payload information exists, the system performs partial action (transfer) rather than complete action (full acquisition). This reduces processing complexity while maintaining accuracy, resolving the contradiction between measurement precision and device complexity.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS10726750B2Signal processing apparatus and signal processing method
Publication Date: 2020.07.28 CANON KK
  • US10726750B2 patent drawing
  • US10726750B2 patent drawing
  • US10726750B2 patent drawing

AI summary

A signal processing apparatus according to the present invention, includes: a signal type determining unit configured to determine a signal type of an SDI signal that is inputted; an acquiring unit configured to acquire payload information from the SDI signal; and a payload information determining unit configured to determine payload information that is used for display setting of the SDI signal, based on a state of acquiring the payload information by the acquiring unit, wherein the payload information determining unit determines whether previously determined payload information is continuously used as the payload information used for the display setting, based on the state of acquiring the payload information by the acquiring unit and the signal type determined by the signal type determining unit.