JPS5925466A - Sound detection switching system - Google Patents

Abstract

PURPOSE:To realize a human-to-human call even if the release of mode is missed, by connecting with a switch the incoming call given from a telephone circuit to an incoming telephone set in case said incoming call contains a sound when an automatic reception mode is set. CONSTITUTION:When an originating subscriber dials the telephone number of a telephone 3 at the incoming side, the call reaches a data transmitting/receiving device 2. Then a changeover switch 28 receives a ringing from a telephone circuit 1. If an automatic reception mode is set at the device 2, the ringing is detected by an automatic answering circuit 220 and a voice detecting circuit 221. Thus an automatic answering state is obtained. When the originating subscriber utters a voice (v), this voice (v) is detected by the circuit 221. In this case, a logical circuit 23 delivers a switch signal (s) if the conditions under which no carrier signal (c) exists at a sound band MODEM20. A control logical circuit 27 gives a switch indication sw by the signal (s) for switching to changeover switches 28, 29a and 29b, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a voice detection switching method, and more particularly to a voice detection switching method in a data transmitting/receiving device.

[Conventional technology and problems]

Conventionally, there is a telephone A and a data terminal M on the calling side.

In addition, a telephone B with a unique telephone number and a data terminal M (equipped with an automatic reception function) are installed on the receiving side, and calls or data transmission and reception are carried out between the calling and receiving subscribers via a single telephone line. In this method, the originating subscriber first dials the telephone number of telephone B from telephone A to set up a communication path between telephones A and B, and then After communicating with the called subscriber to set up the call path and to start data transmission/reception (that is, human-to-human communication), the calling party connects the telephone lines to the data terminals M, , M, respectively. Manual switching to a machine-to-machine connection.Also, if the called party is set to automatic reception mode, the calling subscriber dials the telephone number of the telephone B from the telephone A to connect the corresponding machine. Once the communication path between telephone A and data terminal M is set up,
After receiving the reception preparation completion notification automatically issued by the data terminal Mt, the telephone A switches the communication path to the data terminal M1 and shifts to the machine-to-machine connection.

However, with this method, even if the calling subscriber (human) dials the called party's telephone number when the called party is set to data movement 9 call mode, the calling subscriber (human) will not be able to call the called subscriber (human) and make a call. For example, if you use a terminal that is connected to a telephone line, such as a home facsimile, as an accessory to a subscriber phone, you can send and receive data using a terminal that is used interchangeably with the telephone. If the receiving subscriber sets the automatic reception mode when he or she is away from his or her desk and forgets to cancel this mode when he or she returns home, the system will not notice the call even if the subscriber receives a call, and human-to-human communication will become impossible (・There were some drawbacks.

[Purpose of the invention]

An object of the present invention is to detect the voice when an incoming call from a telephone line includes voice even if automatic reception mode is set on the receiving side, and to switch the connection to the incoming telephone, thereby eliminating the above-mentioned drawbacks. An object of the present invention is to provide a voice detection switching method that eliminates voice detection.

[Summary of the Invention] The voice detection switching method according to the present invention uses a voice band modem and a data terminal with an automatic reception function connected to the modem, which is interposed between a telephone line and a telephone having a unique telephone number. a data transmitting/receiving device comprising: a detection means for detecting voice when an incoming call from the telephone line includes voice when automatic reception mode is set; The special mission is to provide a switching means for switching and incoming calls to the telephone set.

[Embodiments of the invention]

Next, the present invention will be explained with reference to the drawings.

The figure is a block diagram showing an embodiment of the voice detection switching method of the present invention. In the same figure, a data transmitting/receiving device 2 is interposed between a telephone line 1 and a telephone 3 having a unique telephone number N. This data transmitting/receiving device 2 has a changeover switch for setting the automatic reception mode 28, an automatic response circuit 220 that detects a ringing signal (hereinafter referred to as ringing) from the changeover switch 28 to form an automatic response state and passes through the carrier signal C, and a data terminal 21 with an automatic reception function, such as a facsimile machine, for example. (The data terminal 21 is given the same telephone number N as the telephone 3) and is connected to the data terminal 21 and the automatic response circuit 22
0 and a voice band modem 2o that is connected to the telephone line 1 via a changeover switch 28 and performs modulation and demodulation of transmitted and received signals between the two; a voice detection circuit (detection means) 221 that detects the voice V that is transmitted, and the voice band modem 2;
a logic circuit 23 that outputs a switching signal S when the carrier signal C is not input to the terminal 0 and the voice detection circuit 221 detects the voice V; and a control logic interposed between the changeover switch 28 and the telephone 3. Switching instruction sw from circuit 27
Accordingly, the connection between the changeover switch 28 and the telephone 3 is made through the ringing tone sending circuit 24 and the ringing sending circuit 2, respectively.
5, the ring tone sending circuit 24 is connected to the changeover switch 29a and sends out a ring tone, and the ring tone sending circuit 24 is connected to the changeover switch 29b and performs ringing sending and ring tripping. A ringing sending circuit 25 monitors the response state of the frost 5 talker 3 through the ringing sending circuit 25, and when a ring trip occurs, sends a rear exit signal r to the changeover switches 29a and 29b according to instructions from the control logic circuit M27. a response detection circuit 26 that receives the switching signal S and sends out the switching instruction sw, and a ring tone sending circuit 24. The control logic circuit 27 controls the operation sequence 7 of the ringing sending circuit 25 and the response detecting circuit 26, respectively.

In the following, we will explain the operation of this embodiment. When a calling subscriber calls a called subscriber (・, the calling subscriber first calls the calling subscriber (as shown in the figure). When the telephone number of the telephone 3 on the called side is dialed (()), the call arrives at the data transmitting/receiving device 2, and the changeover switch 28 receives the ringing from the telephone line 1.

When the data transmitting/receiving device 2 is set to the automatic reception mode, the changeover switch 28 is connected as shown by the solid line, so that the ringing is received by the automatic response circuit 220 and the voice detection circuit 221. The automatic response circuit 22
0 detects the ringing and creates an automatic response state.

Here, if the calling subscriber issues any voice V, the voice detection circuit 221 detects the voice V, and at this time, the voice band modem 20 sends the carrier signal cfJ'-t(
-1, When the condition is satisfied, the logic circuit 23 outputs the switching signal S. Upon receiving the switching signal S, the control logic circuit 2
7 gives a switching instruction SW to cause the changeover switches 28, 29a and 29b to perform the changeover operation (shown by broken lines), so that the telephone line 1 - the changeover switches 28 and 2
9 a to the ringing tone sending circuit 24 , and the ringing tone sending circuit 24 is connected to the ringing tone sending circuit 24 via the control logic circuit 27 .
A ring tone will be sent from. Further, the telephone 3 is connected to the ringing sending circuit 1% 25 via the changeover switch 29b, and a ringing signal is sent from the ringing sending circuit 25 according to an instruction from the control logic circuit 27 (1!
! (Incoming call switching operation to handset 3). When the called subscriber goes off-hook the telephone 3, the ringing sending circuit 25
makes a ring trip and notifies the control logic circuit 27 via the response detection circuit 26 that the called subscriber has responded. After that, the control logic circuit 27 instructs the response detection circuit 26 to send out the recovery signal r, so that the changeover switch 29
a and 29b are restored (connections shown in solid lines).

As a result, from the telephone line 1 to the changeover switch 28.
A communication path to the telephone set 3 is set up via 29a and 29b, and notifications are made between the originating and terminating subscribers.

Note that when the voice V is not included in the incoming call, the voice band modem 20 demodulates and outputs the carrier signal C from the automatic response circuit 220, so that the data terminal 21 automatically outputs the output data. Receive.

Next, when the data transmitting/receiving device 2 is set to automatic reception mode (), the selector switch 28 is manually switched to the connection shown by the broken line (), so the incoming call is not received on the telephone line 1. Said changeover switches 28, 29a and 29
The call is processed as a general incoming call on the communication path via b. That is, the ringing from the telephone line 1 causes the bell of the telephone 3 to ring.

Each component in this embodiment can be easily realized using common techniques, and does not limit the present invention. That is, the switching means (switch 29a
, 29b) may be a mechanical switch or an electronic switch (・), as long as they are linked, and if the incoming telephone does not respond (no ring trip (・)), a recovery signal is sent after a certain period of time has elapsed since the ringing was sent. It is also possible to add a timing function to send out a ringing tone (instead of a ringing tone, it is also possible to send out a ringing talkie or chime, etc.), and the various functions of the response detection circuit can be included in the control logic circuit to control the sequence. Control may also be performed.

The voice detection switching method of the present invention can be applied to answering machine services by replacing the data terminal with, for example, an answering machine, and the range of application covers a wide range of service fields.

〔Effect of the invention〕

As is clear from the above explanation, according to the voice detection switching method of the present invention, the receiving side does not set the automatic reception mode (
- After setting up the communication path between the calling and receiving parties, it is possible to switch to the receiving telephone and receive the call by emitting a desired voice from the calling party, so for example, when the receiving subscriber leaves the desk, the automatic reception mode can be set. Even if you forget to cancel this mode when you return to your seat, there is an effect that human-to-human communication becomes possible.

[Brief explanation of the drawing]

The figure is a block diagram showing an embodiment of the voice detection switching method of the present invention. In the diagram (・te, 1... telephone line, 2...
・Data transmitting/receiving device, 3...Telephone, 20...
... Voice band modem, 21 ... Data terminal, 23 ... Logic circuit, 24 ... Ringing sound transmission circuit, 25 ... Hitting/ringing transmission circuit, 26・
...Response detection circuit, 27... Control logic circuit, 28.29a, 29b... Changeover switch, 220... Automatic response circuit, 221...・
Audio detection circuit. 2

Claims (1)

[Claims] A data transmitting/receiving device interposed between a telephone line and a telephone having a unique telephone number, and comprising a voice band modem and a data terminal with an automatic reception function connected to the modem. When the mode is set, the incoming call from the telephone line includes a detection means for detecting the voice when the incoming call includes voice, and a switching means for switching the incoming call to the telephone set based on output information from the detection means. A voice detection switching method characterized by: -1