Error Detection Device with Adjustable State Transition Settings
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Solution Overview
Problem
The handshake-type technique for error detection in high-speed serial bus communication standards lacks flexibility in state transition conditions, limiting its use during device development and debugging, as it cannot adjust state transitions beyond the standard settings.
Innovation Solution
An error detection device and method that includes a state transition setting screen allowing users to input and adjust state transition conditions within a predetermined range, including options not defined by the communication standard, enabling flexible and easy adjustment of state transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If handshake-type technique is used to transition device under test to signal return state, then stable operation according to communication standard is achieved, but flexibility in adjusting state transition conditions is lost
Solution Approach 1:
The patent makes the state transition conditions dynamic and adjustable by providing a setting screen that allows users to modify transition conditions between states. This enables the system to adapt to different debugging needs while maintaining stable handshake operation, resolving the contradiction between reliability and adaptability.
Solution Approach 2:
The patent allows changing parameters of state transition conditions through the setting screen, enabling users to adjust transition thresholds, timing, and other parameters. This parameter flexibility maintains stable communication standard compliance while adapting to various device under test scenarios.
2Adaptability or versatility
If fixed-sequence type technique is used for state transition, then flexible debugging is enabled, but considerable time is required for fine adjustment of transmission time
Solution Approach 1:
The patent performs preliminary configuration of state transition conditions through the setting screen before actual testing begins. Users can pre-define transition parameters, timing, and conditions, eliminating the need for time-consuming fine adjustments during debugging while maintaining flexible debugging capabilities.
3Reliability
If handshake-type technique with limited setting items is used, then device under test operation according to communication standard is guaranteed, but user cannot adjust state transition conditions when handshake fails
Solution Approach 1:
The patent creates a universal setting screen that serves multiple functions: it maintains communication standard compliance through predefined options while also allowing custom adjustments when handshake fails. This multi-functional interface resolves the contradiction between standard compliance and operational flexibility.
Data Source
AI summary
The state transition condition can be adjusted flexibly and easily while taking advantage of the handshake-type technique. A state transition setting screen 11 of an entire state transition flow including a name 12 of each state based on a communication standard and a state transition condition 13 to be executed between states is displayed on a display screen 6a, and input setting for the state transition condition is possible on the state transition setting screen 11.