Telephone Apparatus Caller ID Detection Control
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Solution Overview
Problem
Existing telephone apparatuses struggle to detect source identification information, such as caller IDs, consistently across different types of switchboards, especially when initial call signals are brief or have frequencies other than 16 Hz, leading to missed detection opportunities.
Innovation Solution
A telephone apparatus equipped with a call signal detecting unit, identification information detecting unit, and a source identification information detection control unit that activates the detection only when a predetermined condition is met, allowing for detection of caller IDs even after subsequent call signals, regardless of the switchboard type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the identification information detecting unit is continuously activated to detect source identification information, then the detection reliability is improved, but the energy consumption increases
Solution Approach 1:
The identification information detecting unit is activated periodically based on detection of call signals rather than continuously. The control unit activates the detecting unit when a call signal is detected, and deactivates it when no call signal is present, achieving periodic operation that maintains detection reliability while reducing energy consumption.
Solution Approach 2:
The system uses the detected call signal itself to trigger the activation of the identification information detecting unit. The call signal serves as both the indication of incoming information and the trigger to activate the detection mechanism, eliminating the need for continuous operation.
2Use of energy by moving object
If the identification information detecting unit is activated only when specific conditions are met, then the energy consumption is reduced, but the detection reliability deteriorates
Solution Approach 1:
The control unit receives feedback from the call signal detecting unit and adjusts the activation state of the identification information detecting unit accordingly. When a call signal is detected, the control unit activates the detecting unit; when no call signal is present, it deactivates the detecting unit. This feedback mechanism ensures reliable detection while enabling energy savings.
3Adaptability or versatility
If the apparatus is designed to handle multiple switchboard types, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The detection apparatus is designed with universal functionality to handle multiple switchboard types (16 Hz switchboards, non-16 Hz switchboards, and switchboards with brief initial call signals). The control unit implements conditional logic that adapts the detection process based on the detected call signal characteristics, allowing a single apparatus to serve multiple functions across different switchboard types without requiring separate specialized systems.
Data Source
AI summary
A telephone apparatus includes: a call signal detecting unit that detects a call signal transmitted via a public telephone line; an identification information detecting unit that detects source identification information transmitted via the public telephone line; and a source identification information detection control unit that controls an operation of the identification information detecting unit. The source identification information detection control unit actuates the identification information detecting unit when the call signal detecting unit detects the call signal and a predetermined condition is satisfied, and stops or does not actuate the identification information detecting unit when the call signal detecting unit detects the call signal and the predetermined condition is not satisfied.