Communication Apparatus Power Saving Mode Telephone Ringing Control
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Solution Overview
Problem
Conventional facsimile apparatuses experience unwanted ringing of connected telephones during power saving mode due to delayed detection of incoming calls, leading to potential user operation delays and unresponsive control units.
Innovation Solution
A communication apparatus with a setting unit, detection unit, and control unit that disconnects the telephone from the telephone line during power saving mode, suppressing ringing until the apparatus returns to normal mode, allowing controlled reconnection and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the telephone is connected to the telephone line during power saving mode, then the telephone can ring to notify incoming calls, but the control unit cannot respond to user operations timely
Solution Approach 1:
The control unit performs preliminary disconnection of the telephone from the telephone line before entering power saving mode. This preliminary action ensures that when power is restored and the telephone is reconnected, any incoming call ringing will occur after the control unit is fully responsive, eliminating the problem of unresponsive control during power saving mode.
Solution Approach 2:
The connection state of the telephone is dynamically changed based on the power saving mode. The control unit temporarily disconnects the telephone during power saving mode and reconnects it when returning to normal operation mode. This dynamic state change ensures the telephone rings only when the control unit can respond to user operations.
2Object-generated harmful factors
If the telephone is disconnected from the telephone line during power saving mode, then unwanted ringing is prevented, but the telephone cannot ring when an incoming call is received
Solution Approach 1:
The control unit performs preliminary disconnection of the telephone before entering power saving mode. This ensures that when power is restored and the telephone is reconnected, any incoming call ringing will occur after the control unit is fully responsive, preventing unwanted ringing while maintaining proper notification capability.
Solution Approach 2:
The control unit maintains the capability to ring the telephone continuously by reconnecting it upon returning from power saving mode. This ensures that the telephone can ring for incoming calls while preventing unwanted ringing during power saving mode, maintaining continuous useful action.
3Loss of energy
If the control unit returns from power saving mode quickly, then power saving is improved, but the telephone may ring before the control unit is ready to respond
Solution Approach 1:
The control unit performs preliminary disconnection of the telephone before entering power saving mode. This preliminary action, combined with the reconnection upon returning from power saving mode, ensures that the telephone rings only when the control unit is fully responsive, resolving the contradiction between quick power saving and control responsiveness.
Data Source
AI summary
There is provided a communication apparatus to which a telephone is connectable. While the telephone is disconnected from a telephone line, the communication apparatus shifts to a power saving mode. If an incoming call is detected in the power saving mode, the communication apparatus is returned from the power saving mode, and then controls to switch connection between the telephone and the telephone line in accordance with preset setting of an operation at the time of an incoming call.