JPS59214370A - Order telephone service system - Google Patents

Abstract

PURPOSE:To control an order circuit connection signal automatically only by the calling act of an order caller by using an order call detecting means for an order circuit connection and utilizing its output. CONSTITUTION:An order call voice signal inputted from an input terminal 1 is branched into two by a voice two-branching circuit part 4, and one is outputted to an output terminal 2 and connected to an order circuit. The other branched voice signal is inputted to an order call detection part 5. The order call detection part 5 compares the input telephone voice VL with a preset reference level S1 and juges that there is a call when VL> SL to output an order circuit connection signal to an output terminal 3. When VL<SL and the continuance of VL<SL exceeds some preset reference time, the order call detection part 5 judges that there is no call and outputs no circuit connection signal to the output terminal 3. Namely, the order call detection part 5 detects the presence or absence of a call including an order call and generates the circuit connection signal automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a meeting call system, and more particularly to a meeting call system that allows automatic meeting line connection.

Conventionally, in this type of meeting call system, a meeting line connection signal was manually input into the meeting device, so each time a meeting was required, the meeting line connection operation was performed manually, instead of the cumbersome process. There was also a risk of forgetting to cancel this input operation.

SUMMARY OF THE INVENTION An object of the present invention is to provide a meeting call system that does not require manual input of a meeting line connection signal to a speaker call system meeting device.

That is, the present invention provides a meeting device using a speaker calling system, which is equipped with a detection means for detecting the meeting call, and the meeting call detecting means detects the other party's call by the meeting caller or the meeting call state, and outputs the detection output. is used as a meeting line connection signal used in the conventional meeting call system.

Next, embodiments of the present invention will be described with reference to the drawings.

Referring to a diagram showing a functional block diagram of a meeting call system according to the present invention, the embodiment of the present invention has an input terminal 1 for a meeting call audio signal, and an audio 2 connected to this input terminal 1.
A branch circuit section 4, one branch output terminal 2 thereof, a meeting call detection section 5, and an output terminal 3 for a meeting call detection signal.

It includes an audio signal line 6 for transmitting one branched audio signal of the audio 2 branching circuit section 5 to the all meeting call detection section 5.

A meeting call audio signal inputted from the input terminal 1 is branched into two by the audio 2 branching circuit section 5, one of which is output to the output terminal 2 and connected to the meeting line.

The other branched audio signal is input to the meeting call detection section 5. The meeting call detection unit 5 compares the input call voice level (VL) with a preset reference level (SL), and if the comparison result is VL>SL, it determines that there is a call.

A meeting line connection signal is output to the output terminal 3. Also, V
In the case of L<SL, if the duration of the state of VL<8L exceeds a preset reference time, the meeting call detection unit 5 determines that there is no call and sends a 1-line connection signal to the output terminal 3. No output. A meeting call detection section 5 detects the presence or absence of a call including a meeting call, and automatically generates a line connection signal.

As explained above, the present invention uses a meeting call detecting means to connect a meeting line, and uses the output thereof to automatically connect a meeting line only by the call action of the person making the meeting call. Since the signal is controlled, there is no need for the meeting caller to manually input the meeting line connection signal input operation, and there is an effect of preventing the meeting line connection state due to the meeting caller forgetting to cancel the meeting line connection input operation.

[Brief explanation of the drawing]

The figure shows a functional block diagram of an embodiment of the meeting call system of the present invention. In the figure, 1... audio input terminal for meeting call, 2... meeting call audio branch output terminal, 3... meeting call detection output terminal,
4...Audio 2 branch circuit unit, 5...Meeting call detection unit. 6...Audio signal line.

Claims (1)

[Claims] In the meeting call method using the speaker call method,
This meeting call system is characterized by detecting this meeting call and generating a meeting line connection signal based on the detection output.