Intelligent Terminal Startup Switching via HDMI Detection

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Solution Overview

Problem

The existing methods for intelligent terminal startup, such as using a jumper cap, are cumbersome and unsafe, making it difficult for users or development engineers to switch or debug systems, and pose risks of unauthorized system switching.

Innovation Solution

A control method and device that detects the presence of a startup switching device after a power-on trigger, allowing the intelligent terminal to start up through either a first or preset ROM based on the presence and state of a switching device, utilizing HDMI for information exchange and button state detection to determine the appropriate ROM for startup.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a jumper cap mode is used for startup switching, then the intelligent terminal can be started from a second ROM, but the operation becomes cumbersome and safety deteriorates

Engineering Contradiction:

Improvestartup switching capabilityVSAvoidswitching operation convenience

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent replaces the mechanical jumper cap switching method with an HDMI interface-based detection system. The system automatically detects the presence of a startup switching device through electrical connections rather than requiring manual mechanical manipulation of jumper caps, thereby improving ease of operation while maintaining startup switching capability

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an HDMI interface as an intermediary between the user and the startup switching mechanism. Instead of directly manipulating internal jumper caps, users connect external devices through HDMI ports, which trigger automatic detection and switching procedures, making the operation more convenient and user-friendly

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a jumper cap mode is used for startup switching, then the intelligent terminal can be started from a second ROM, but safety deteriorates due to unauthorized system switching

Engineering Contradiction:

Improvestartup switching capabilityVSAvoidsystem security

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent replaces the open mechanical jumper cap system with a controlled HDMI interface system that uses electrical detection and authentication mechanisms. This substitution enables automatic verification of switching devices, preventing unauthorized system switching while maintaining the ability to switch between ROMs for legitimate purposes

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent implements a feedback mechanism where the system automatically detects the presence and status of startup switching devices through HDMI connections. This detection feedback enables the system to verify authorized devices and control the startup switching process, thereby improving security and preventing unauthorized access

Inventive Principle:

Principle #23Feedback

3Reliability

If the intelligent terminal is started from a large-capacity ROM, then the startup code must be correct, but the system becomes vulnerable when ROM content is damaged

Engineering Contradiction:

Improvestartup reliabilityVSAvoidstartup mode flexibility

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent prepares a startup switching device and alternative ROM configuration in advance as a cushioning measure. When the primary ROM content is damaged, the system can automatically or manually switch to the preset alternative ROM, ensuring continuous operation and preventing complete system failure

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The patent creates a dynamic startup system that can adaptively switch between different ROMs based on the detected status of the primary startup code. The system transitions from a static single-ROM approach to a dynamic multi-ROM configuration, enabling flexible recovery when damage occurs

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12153931B2Control method, control device and startup switching device for intelligent terminal startup

Publication Date: 2024.11.26 SHENZHEN SDMC TECH CO LTD

AI summary

Disclosed are a control method, a control device and a startup switching device for intelligent terminal startup, where the control method includes: detecting whether a startup switching device is inserted after a power-on trigger signal is received; starting up the intelligent terminal through a first ROM when no startup switching device is inserted; reading specified information in a high definition multimedia interface when the startup switching device is inserted; and starting up the intelligent terminal through a preset ROM when the specified information is preset switching data, thereby solving the problems that the intelligent terminal startup switching is cumbersome and of poor safety by using a jumper cap in the prior art.