Bridge Device Identification via Undefined Command Response
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Solution Overview
Problem
Current methods lack a mechanism for identifying bridge devices, leading to potential unauthorized software misuse and inefficiencies in testing, as standard commands are primarily designed for standard interface devices rather than bridge devices.
Innovation Solution
A method and system where a bridge device responds to an undefined command by generating output information with no-available parameters set to predetermined values, allowing identification by matching predefined values to determine if the bridge device is supported.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If standard commands (IDENTIFY DEVICE, IDENTIFY PACKET DEVICE) are used to retrieve information, then standard interface devices can be identified, but bridge devices cannot be identified
Solution Approach 1:
The patent changes the parameter of the command from standard (IDENTIFY DEVICE) to undefined/custom commands that are specifically designed for bridge devices. By modifying the command parameters and structure, the system can now retrieve bridge device information while maintaining compatibility with standard interface devices through the same IDENTIFY DEVICE command framework.
2Reliability
If manufacturers develop proprietary software programs for testing, then their bridge devices can be tested, but software can be misappropriated by other manufacturers
Solution Approach 1:
The patent implements a feedback mechanism where bridge devices return specific response patterns and parameter values that serve as identification fingerprints. This allows software to verify the authenticity and type of bridge device, preventing misappropriation while maintaining reliable testing through the standardized IDENTIFY DEVICE command interface.
Data Source
AI summary
Methods for identifying bridge devices and systems thereof. A bridge device receives an undefined command. In response to the undefined command, output information comprising at least one no-available parameter is generated. The bridge device sets the no-available parameter as a predetermined value. The bridge device is identified by determining whether a predetermined value of at least one no-available parameter in the output information matches a predefined value for a supported bridge device.