CEC System Software Simulation Anti-Leakage Circuit

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Solution Overview

Problem

Conventional CEC systems require multiple hardware sets to provide additional CEC function sets, leading to increased hardware costs.

Innovation Solution

A CEC system that uses software to simulate CEC functions, allowing for an increase in the number of CEC function sets without increasing hardware costs, by utilizing a first IC with an anti-leakage circuit and a second IC that can provide CEC functions through software simulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple hardware sets are used to provide additional CEC function sets, then the number of CEC function sets is increased, but the hardware cost is significantly increased

Engineering Contradiction:

Improvenumber of CEC function setsVSAvoidhardware cost

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent uses software to simulate CEC functions, creating a virtual copy of the CEC control capability. Instead of adding physical hardware sets, the system uses software simulation to replicate CEC functionality, allowing multiple CEC function sets to be provided without proportionally increasing hardware complexity and cost

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent makes a single hardware set universal by enabling it to provide multiple CEC function sets through software simulation. The first IC with anti-leakage circuit and second IC can be configured via software to simulate different CEC functions, allowing one hardware platform to serve multiple CEC control purposes without requiring separate dedicated hardware for each function set

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If software is used to simulate CEC functions, then the number of CEC function sets is increased without increasing hardware costs, but additional technical challenges arise in signal integrity and electrical coupling

Engineering Contradiction:

Improvenumber of CEC function setsVSAvoidsoftware simulation complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces an anti-leakage circuit as an intermediary component between the first IC and second IC. This circuit ensures proper electrical coupling and signal integrity during software-based CEC simulation, mediating the interaction between the simulated CEC functions and the physical HDMI interface to maintain reliable communication

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the operational parameters of the ICs by configuring them through software to simulate different CEC functions. By modifying software configuration parameters rather than hardware architecture, the system can dynamically adjust and provide multiple CEC function sets without physical hardware changes

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250045222A1Consumer electronics control system and electronic system control method

Publication Date: 2025.02.06 REALTEK SEMICON CORP

AI summary

A CEC system, comprising: a first IC, comprising a first pin and an anti-leakage circuit electrically coupled to the first pin; and a second IC, comprising a second pin electrically coupled to the first pin. The first IC or the second IC is configured to provide a CEC function. Thereby software can be used to simulate CEC functions to increase the number of CEC function sets without increasing hardware costs, to increase the application scope of the CEC system.