Facsimile Apparatus Automatic Mode Switching for Error Reduction
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Solution Overview
Problem
Existing facsimile apparatuses face inefficiencies in switching communication modes to prevent sending errors over optical or IP telephone lines, as manual switching is time-consuming and not automated.
Innovation Solution
A facsimile apparatus with a communication unit capable of high-speed and low-speed modes, an error detection unit, a determination unit, and a communication mode selection unit that automatically switches to low-speed mode when communication errors exceed a threshold, based on stored communication records.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual switching to lower communication speed is performed to prevent sending errors, then communication reliability is improved, but operation time is increased
Solution Approach 1:
The facsimile apparatus automatically detects communication errors and switches communication modes without user intervention. The control unit monitors packet loss rates, determines when mode switching is needed, and executes the switching automatically, allowing the system to serve itself rather than requiring manual user action.
Solution Approach 2:
The system continuously monitors communication quality through packet loss detection and uses this feedback to dynamically adjust communication mode. The control unit receives feedback on communication status, compares it against threshold criteria, and automatically switches modes based on this feedback loop.
2Speed
If high-speed communication mode is used, then communication speed is improved, but communication reliability deteriorates on optical or IP telephone lines
Solution Approach 1:
The communication mode is made dynamic rather than fixed. The system automatically adjusts between high-speed and low-speed modes based on real-time communication conditions, allowing the communication speed to vary dynamically according to network quality while maintaining optimal reliability.
Solution Approach 2:
The system changes the communication parameter (mode speed) based on detected conditions. When packet loss exceeds a threshold, the control unit changes the communication mode parameter from high-speed to low-speed, thereby adapting the system parameter to match current network conditions.
Data Source
AI summary
A facsimile apparatus comprises a communication unit having a high-speed communication mode and a low-speed communication mode lower in communication speed than the high-speed communication mode. The facsimile apparatus automatically selects the low-speed communication mode to send a fax to an opposite communication party the communication error occurrence of which meets a specific condition in the case where a fax is sent in the high-speed communication mode.