Synchronous Signal Conversion Circuit for Standard-Compliant Timing

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Solution Overview

Problem

Existing systems face high development costs when modifying specifications to transmit and receive data signals and synchronous signals conforming to predetermined standards, such as HDMI or DVI.

Innovation Solution

A synchronous signal conversion circuit and method that includes a transition detection circuit, a synchronous signal generation circuit, and an output timing control circuit to detect transitions in input synchronous signals, generate output signals conforming to a standard, and synchronize them with data signals, allowing existing systems to conform to standards without modifying their specifications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If existing systems use their original specifications without modification, then development costs are reduced, but the systems cannot conform to predetermined standards

Engineering Contradiction:
Improvedevelopment costVSAvoidstandard conformity
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

A synchronous signal conversion circuit is introduced as an intermediary component between the existing system and the standardized interface. This conversion circuit translates non-standard synchronous signals into standard-compliant signals, allowing the existing system to communicate through standardized interfaces without modifying the system's core specifications, thus resolving the contradiction between maintaining original specifications and achieving standard conformity

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The synchronous signal conversion circuit changes parameters of the synchronous signal (such as timing, frequency, or format) to transform non-standard signals into standard-compliant signals. This parameter transformation enables the system to output standard-compliant signals while the system itself remains unchanged, addressing the contradiction between ease of manufacture and adaptability

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If the specification of an existing system is modified to conform to a standard, then standard conformity is achieved, but development costs increase

Engineering Contradiction:
Improvestandard conformityVSAvoiddevelopment cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Instead of modifying the existing system's specification, a synchronous signal conversion circuit serves as a mediator that handles the standardization task. This approach achieves standard conformity while avoiding the high development costs associated with system specification modification

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The solution segments the standardization function from the main system by creating a separate synchronous signal conversion circuit. This segmentation allows the main system to remain unchanged while the conversion circuit handles the standard conformity requirement, thereby reducing development costs

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20110228165A1Synchronous signal conversion circuit, signal processing system including it, and synchronous signal conversion method
Publication Date: 2011.09.22 PANASONIC HOLDINGS CORP
  • US20110228165A1 patent drawing
  • US20110228165A1 patent drawing
  • US20110228165A1 patent drawing

AI summary

A synchronous signal conversion circuit converts a first synchronous signal, which is transmitted with a data signal, to a second synchronous signal conforming to a predetermined standard. In the synchronous signal conversion circuit, a transition detection circuit detects transition of the first synchronous signal. A synchronous signal generation circuit generates a second synchronous signal in response to a detection result by the transition detection circuit. An output timing control circuit delays the second synchronous signal generated by the synchronous signal generation circuit so that the second synchronous signal synchronizes with the data signal.