Apparatus and control method for the same
AssigneeCanon Kabushiki Kaisha
InventorNaoki Sugawara
Life of this patent
Estimating the term…
Abstract
An apparatus which accepts a connection of an external telephone and connects to a telephone line includes a first controller configured to control line impedance via the telephone line, a detecting unit configured to detect a ringing signal received from the telephone line, a determining unit configured to determine whether the external telephone captures a telephone line, and a second controller configured to invalidate the control over line impedance by the first controller in a case where the apparatus is a standby state and validate the suppression of the control over ringer impedance by the first controller in a case where the detecting unit detects the ringing signal and the determining unit determines that the external telephone does not capture a telephone line.
Claims15
An apparatus which accepts a connection of a telephone and connects to a telephone line, the apparatus comprising:
- a controller configured to control ringer impedance of the telephone line to be compliant with a standard;
- a detecting unit configured to detect a ringing signal received from the telephone line;
- a determining unit configured to determine whether the telephone captures the telephone line;
- a suppression unit configured to disable the ringer impedance control by the controller until the detecting unit detects the ringing signal;
- and
- a cancelling unit configured to cancel a disablement of the ringer impedance control,
- wherein the cancelling unit cancels the disablement of the ringer impedance control in a case where the detecting unit detects the ringing signal, and
- wherein the suppression unit disables the ringer impedance control by the controller in a case where the determining unit determines that the telephone captures the telephone line after the detecting unit detects the ringing signal and the cancelling unit cancels the disablement of the ringer impedance control.
A control method for an apparatus which allows a connection of a telephone and connects to a telephone line, the method comprising:
- controlling ringer impedance of the telephone line to be compliant with a standard;
- detecting a ringing signal received from the telephone line;
- determining whether the telephone captures the telephone line;
- disabling the ringer impedance control until detecting the ringing signal;
- and
- cancelling a disablement of the ringer impedance control,
- wherein the disablement of the ringer impedance control is cancelled in a case where the ringing signal is detected, and
- wherein the ringer impedance control is disabled in a case where it is determined that the telephone captures the telephone line after the ringing signal is detected and the disablement of the ringer impedance control is cancelled.
A non-transitory computer-readable recording medium configured to store a program which causes a computer to execute a method for an apparatus which allows a connection of a telephone and connects to a telephone line, the method comprising:
- controlling ringer impedance of the telephone line to be compliant with a standard;
- detecting a ringing signal received from the telephone line;
- determining whether the telephone captures the telephone line;
- disabling the ringer impedance control until detecting the ringing signal;
- and
- cancelling a disablement of the ringer impedance control,
- wherein the disablement of the ringer impedance control is cancelled in a case where the ringing signal is detected, and
- wherein the ringer impedance control is disabled in a case where it is determined that the telephone captures the telephone line after the ringing signal is detected and the disablement of the ringer impedance control is cancelled.
Dependencies are inferred from the claim text.