JPS63138844A - Automatic telephone calling device - Google Patents

Abstract

PURPOSE:To allow a caller to call other location if a called party is absent as holidays or off-time by providing a time switch selecting a called telephone number by time. CONSTITUTION:Plural start signal dialing means 32a, 32b have a function to call a predetermined telephone number respectively. The dialing means 32a, 32b are connected selectively to line 12a, 12b by selector switches 37b, 37c switched timewise by a timer 37. In hooking off an automatic dialing telephone set 16 for dialing, one dialing means selected by a timer contact 37a is operative and the telephone number stored therein is sent to the lines 12a, 12b. Thus, a telephone set at a location where the called party resides is called surely.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an automatic telephone calling device, and more particularly, to an automatic telephone calling device in which an activation signal for calling a specific called party is transmitted by turning on a hook switch. Related to automatic calling device.

(Prior Art) As a conventional telephone automatic calling device of this type, there is one used as a part of a telephone transfer device, for example. In this conventional telephone automatic calling device, by turning on a hook switch, an activation signal for calling a set called party is transmitted.

(Problems to be Solved by the Invention) However, in such conventional telephone automatic calling devices, the number of called parties to be called is limited to one location. Therefore, if the called party is absent, for example because it is a holiday or outside working hours, the called party cannot be called. In such a case, an automatic call cannot be made even if the called party is located somewhere else. Therefore, it is conceivable to set a plurality of called parties and select one of them. However, when choosing one place from among multiple called parties,
For example, there is the inconvenience of having to go to a place where an automatic telephone ringing device is installed when the workday starts or ends.

Therefore, the main purpose of this invention is to set the time and
To provide an automatic telephone calling device capable of selecting a called party to call from among a plurality of called parties according to time.

(Means for Solving the Problems) This invention is connected to a telephone line and transmits an activation signal for calling a specific called party by turning on the hook switch of the calling party's telephone. The automatic telephone calling device is equipped with a plurality of activation signal transmission means, and has a time switch for selecting any one of the plurality of activation signal transmission means according to time.

(Function) At the set time, the time switch switches over the activation signal transmission means for calling the called party.

(Effects of the Invention) According to the present invention, it is possible to switch to any one of a plurality of called parties at a set time.

Therefore, if the other party is absent, for example on a holiday or outside of working hours, it is possible to automatically call another location.

The above objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

(Embodiment) FIG. 1 is a circuit diagram showing an embodiment of the present invention. The automatic telephone calling device according to the embodiment of the present invention is capable of calling a caller in response to a caller's answer, such as a so-called toll-free service telephone line where the telephone charge is paid by the callee and a telephone line of a telephone transfer device. It can be used for telephone lines where the telephone line at the end of the call is not current converted, and it can also be used for telephone lines where the telephone line at the calling party is converted into a current converted in response to the called party answering, such as for example on a regular subscriber telephone line. Please note in advance that it can be used. In the detailed description of this embodiment, the automatic telephone calling device 10 of this embodiment has so-called toll-free service telephone lines ga12a and 12.
An example will be explained in which the device is connected to the device b.

The automatic telephone calling device 10 of this embodiment has two telephones 1
4 and 16 are connected, and by turning on the hook switch 18 or 20 of one telephone, the switching circuit 22 cuts off the connection of the other telephone 16 or 14.
including.

This switching circuit 22 includes two telephone switching relays 24 and 26, and one telephone line 12a.
is connected to one input/output end of the telephone 14 via one b contact 24a of one telephone switching relay 24. Further, the other telephone line 12b is connected to one end of the excitation coil of the other telephone switching relay 26 via another b contact 24b of the relay 24, and the other end of the excitation coil of this relay 26 is connected to the telephone. It is connected to the other input/output terminal of 14. Therefore, by turning on relay 24, telephone 14 can be disconnected from telephone lines 12a and 12b. Further, the relay 26 is turned on by turning on the hook switch 18 of the telephone 14.

Note that the telephone used in -m can be used as the telephone 14.

Further, this telephone line 12a is connected to one of the relays 28, which will be described later.
It is connected to the open-circuit side terminal of the two C contacts 28a. and,
The common side terminal of the C contact 28a of this relay 28 is connected to one input/output end of the telephone 16 via one B contact 26a of the relay 26. This telephone 16 is a telephone exclusively used for automatic calling, and a commonly used telephone can be used. The other telephone diagram 'fa12b is connected to the open side terminal of another C contact 28b of the relay 28 via the excitation coil of the relay 30 for holding the relay 28. The common side terminal of the C contact 28b of this relay 28 is connected to the other B contact 26b of the relay 26.
It is connected to the other input/output end of the telephone 16. therefore,
By turning on relay 28, telephone 16 can be connected to telephone lines 12a and 12b, and by turning on relay 26, telephone 16 can be disconnected from telephone lines 12a and 12b.

Further, the closing side terminal of the C contact 28a of the relay 28 is grounded, and the closing side terminal of the C contact 28b of the relay 28 is connected to an automatic transmission circuit 32 that constitutes a part of the start signal transmission means.
It is connected to the power supply +V via the excitation coil of the relay 34 for starting the relays 32a and 32b. Therefore, phone 1
By turning on the hook switch 20 of No. 6, the relay 34 can be turned on. Furthermore, relay 3
A capacitor 36 for delaying the return time of the relay 34 is connected in parallel to the excitation coil No. 4.

One end of the excitation coil of the relay 24 is grounded via the C contact 34c of the relay 34. The other end of the excitation coil of the relay 24 is connected to the power supply +■. Therefore, by turning on relay 34, relay 24
is turned on. In addition, the C contact 34c of the relay 34 has
C contacts 28c of the relay 28 are connected in parallel. Therefore, if you turn on the hook switch 20 of the telephone 16,
Relays 34 and 24 are turned on, thereby allowing telephone 14 to be disconnected from telephone lines 12a and 12b.

The automatic transmission circuits 32a and 32b are the same circuit, and one of them is activated by selecting the time switch 37 according to the time. The time switch 37 is
For example, a 24-hour time switch or the like is used to set a time for switching on and off the automatic transmission circuits 32a and 32b. One of the automatic calling circuits 32a includes an activation signal transmitter 38 that transmits an activation signal for calling a specific called party.This activation signal transmitter 38 includes a storage element such as a ROM, stores data corresponding to an activation signal for calling a specific called party. In this embodiment, data corresponding to an activation signal for using a so-called toll-free service telephone line is stored in the ROM.

The power input terminal of this activation signal transmitter 38 is
It is connected to the power supply +V via one C contact 40c of the relay 40. One end of the excitation coil of this relay 40 is connected to the power supply +V, and the other end of this excitation coil is connected to the closing side terminal of one C contact 37a of the time switch 37. The open terminal of the C contact 37a of this time switch 37 is connected to the other automatic transmission circuit 32b, and the common terminal is grounded via another C contact 34b of the relay 34 described above. Therefore, by turning on relay 34, relay 40 of automatic transmission circuit 32a is turned on, thereby activating activation signal transmitter 38.

Further, an input end of a matching transformer 42 is connected to an output end of the activation signal transmitter 38. This matching transformer 42 is for matching the impedance of the activation signal transmitter 38 and the telephone lines 12a and 12b. One output end of the matching transformer 42 is connected to one end of one A contact point 43a of a relay 43 built in the starting signal transmitter 38, and this C contact 43
The other end of C is connected to the closing side terminal of another C contact 37b of the time switch 37. The common side terminal of the C contact 37b of the time switch 37 is connected to one telephone line 12a via the other B contact 28c of the relay 28. Further, the other output end of the matching transformer 42 is connected to the closing side terminal of the other C contact 37c of the time switch 37, and the common side terminal of the C contact 37c is connected to the other B contact 28d of the relay 28. The telephone line 12b is connected to the other telephone line 12b through the telephone line 12b. And time switch 37
The open-circuit side terminals of the C contacts 37b and 37c are connected to another automatic transmission circuit 32b. A switch 44 is connected between the output ends of the matching transformer 42 for switching between transmitting a starting signal for a rotary telephone and transmitting a starting signal for a bushing telephone.

The memory element of the automatic transmission circuit 32b includes the automatic transmission circuit 32b.
Data corresponding to an activation signal for calling a called party other than "a" is stored. And automatic transmission circuit 32a
, 32b are switched by the time switch 37 to select the called party to be called.

The aforementioned relay 43 is controlled by a control circuit 45 built into the activation signal transmitter 38. When transmitting the activation signal for the bushing type telephone, the switch 44 is turned off and the relay 40 is turned on. Accordingly, the control circuit 45 turns on the relay 43, and the activation signal transmitter 38 transmits to the telephone lines 12a and 12b an activation signal for a bush type telephone for calling a specific called party.

Further, a start signal end detection circuit 46 is connected to the start signal transmitter 38 as a start signal end detection means for detecting the end of the start signal transmission. The output terminal of the activation signal completion detection circuit 46 becomes low level when the activation signal from the activation signal transmitter 38 ends.

An input terminal of a timer circuit 48 is connected to an output terminal of the activation signal end detection circuit 46. This timer circuit 48 is
For example, it includes a time limit relay 50, and when its input terminal becomes low level, its output terminal becomes low level for a certain period of time, for example, 3 seconds in this embodiment.

One end of the excitation coil of the relay 52 is connected to the output end of the timer circuit 48, and the other end of this excitation coil is connected to the power supply +V.

Also, via one C contact 52a of this relay 52,
Outgoing message circuit 5 as outgoing message sending means
The input terminal of No. 4 is grounded. Further, the output end of the transmitting message circuit 54 is connected to the common side terminal of the C contact 28a of the relay 28 via another C contact 52b of the relay 52. Further, the common side terminal of the C contact 28b of the relay 28 is grounded via the other C contact 52a of the relay 52.

Note that the common side terminals of the C contacts 28a and 28b of the relay 28 are connected to the B contacts 26a and 2 of the relay 26, respectively.
It is connected to the telephone 16 via 6b.

Thus, by turning on relay 52, outgoing message circuit 54 can be activated, and outgoing message circuit 54 can transmit an outgoing message, such as, for example, "Ringing" to telephone 16. Note that this transmission message circuit 54 is, for example, F
It includes a storage element such as a ROM, and the outgoing message is stored in, for example, a PROM. Also, this PRO
M is a type of ROM, which can be erased and rewritten using ultraviolet light or high voltage. Therefore, it is also possible to rewrite the contents of the message.

On the other hand, one end of the excitation coil of a relay 58 for activating the ringing detection circuit 56 is connected to the output end of the activation signal end detection circuit 46, and the other end of the excitation coil is connected to the power supply +■. . This ringing detection circuit 56 is for detecting a ringing tone, and when a signal such as a ringing tone is input to its input terminal, its output terminal goes to a low level in synchronization with the ringing tone. becomes.

The input terminal of this ringing detection circuit 56 is connected to the relay 5.
It is connected to the common side terminal of the two C contacts 37b and 37c of the time switch 37 through the two C contacts 58a and 58b of the relay 28, and further connected to the two B contacts 28c of the relay 28.
, 28d to the telephone lines 12a and 12b, respectively.

The output end of the calling signal detection circuit 56 is connected to a relay 60.
The excitation coil is connected to one end of the excitation coil, and the other end of the excitation coil is connected to the power supply +V. A C contact 62a of a relay 62 is connected in parallel to a C contact 60a of this relay 60, and one end of these contacts is connected to a power supply +V via an excitation coil of the relay 62. On the other hand, the other ends of the contacts 60a and 62a are connected to another a contact 3 of the relay 34 described above.
Grounded via 4C. Therefore, once the relay 6o is turned on while the relay 34 is on, the relay 62 becomes a self-holding state, and even if the relay 60 is turned off, the relay 62 is turned on.

Further, the common side terminal of the C contact 60b of the relay 60 is grounded via another C contact 62b of the relay 62. Furthermore, the open-circuit side terminal of this C contact 60b is connected to a power source of 10V via an excitation coil of a relay 64. Therefore, this relay 64 is turned on in synchronization with the relay 60 being turned on in a state in which the relay 62 is turned on, that is, in a state in which the relay 34 is turned on and the relay 60 is once turned on.

Through one C contact 64a of this relay 64, the common side terminal of the C contact 28a of the relay 28 and one telephone line 12 are connected.
a is connected. In addition, another C contact 64 of the relay 64
The common side terminal of the C contact 28b of the relay 28 and the other telephone line 12b are connected through the terminal b. Therefore, when the called party's ring tone is transmitted to telephone lines 12a and 12b, the ring tone is transmitted to telephone set 16.

On the other hand, one end of the excitation coil of the time lag relay 66 is connected to the closing side terminal of the C contact 60b of the aforementioned relay 60, and the other end of this excitation coil is connected to the power supply +■. This time lag relay 66 includes a time-limited A contact 66a, and in this embodiment, the time-limited A contact 66a is set to turn on when there is an input to the relay 66 for, for example, 2.5 seconds or more. .

The input end of the timer circuit 68 is grounded via the time-limited a contact 66a of the time lag relay 66.

When the input terminal of this timer circuit 68 is grounded,
The output terminal remains at a low level for a certain period of time, for example, 3 seconds.

The output end of this timer circuit 68 is connected to the power supply +■ via the excitation coil of the relay 70. Then, the relay 70 turns on when the ringing tone disappears (when the called party answers).

An input end of a response message circuit 72 serving as response message transmitting means is grounded via one C contact 70a of this relay 70. The output end of this response message circuit 72 is connected to one telephone line 12a via another C contact 70b of the relay 70. Furthermore, the other telephone line 12b is grounded via the other C contact 70a of the relay 70.

Therefore, by turning on relay 70, response message circuit 72 is transferred from telephone lines 12a, 12b (
A response message is sent to the called party indicating the caller's location, for example, "Osaka." This response message circuit 72 also includes a storage element such as a PROM, like the above-described transmission message circuit 54, and this PROM
Data corresponding to a message is stored in M.

Further, the positive terminal of a capacitor 74 is connected to the common side terminal of one C contact 70d of the relay 70, and the negative terminal of this capacitor 74 is grounded. Furthermore, the open-circuit side terminal of the C contact 70d of the relay 70 is connected to the power supply element (2) via a resistor 75. Therefore, when relay 70 is turned on, charge is stored in capacitor 74.

Further, one end of the excitation coil of the relay 76 is connected to the negative terminal of the capacitor 74, and the other end of the excitation coil is connected to the closing side terminal of the C contact 70d. Therefore, if the relay 70 is turned from on to off, the capacitor 74
The charge stored in the relay 76 is applied to the excitation coil of the relay 76, and the relay 76 is turned on for a short time.

The C contact 30a of the relay 30 is connected in parallel to the C contact 76a of the relay 76, one end of these contacts is grounded, and the other end of these contacts is connected to the power supply via the excitation coil of the relay 28. Connected to child ■.

Note that a capacitor 78 is connected in parallel to the excitation coil of the relay 28 in order to delay its return time.

Next, with reference to FIG. 1, the operation of this embodiment will be described based on the flowchart shown in FIG.

First, in the first step S1, one location is selected from among a plurality of called parties. This selection of the called party is made by the automatic calling circuit 32a at the time set by the time switch 37.
This is done by switching between and 32b.

In the next step S2, the hook switch 20 of the automatic calling telephone 16 is turned on. This is done by the calling party, for example, by lifting the handset of the telephone 16. And when Fuchs inch 20 is turned on,
Relay 34 is turned on, relay 24 is turned on,
Proceed to step s3.

In step S3, relay 24 is turned on, thereby disconnecting telephone 14 from telephone lines 12a and 12b.

In the next step S5, the previous step s1 is 34
is turned on, the relay 40 is turned on, and an activation signal for calling a specific called party is transmitted from the automatic calling circuit 32a to the telephone ports MA 12a and 12b.

At this time, if the time switch 37 has switched from one automatic dialing circuit 32a to the other automatic dialing circuit 32b, the telephone lines 12a and 12b are connected to the automatic dialing circuit 32b for calling a specific called party. A start signal is sent.

Then, in the next step S7, it is detected whether the activation signal is finished or not. This detection is performed by the activation signal end detection circuit 46. When the start signal transmission circuit finishes issuing the start signal, the output terminal of the start signal end detection circuit 46 becomes low level, the timer circuit 48 and the relay 58 are turned on, and the process proceeds to the next step S9.

In step S9, a message is sent to the telephone 6 for a certain period of time. In this case, in step S7, the timer circuit 48
When the relay 52 is turned on, the relay 52 is turned on for three seconds, and a message such as "You are calling" is repeatedly sent from the response message circuit 54 to the telephone set 16 for a certain period of time. That is, the timer circuit 48
When the set time (3 seconds) has passed, the relay 52 is reset, and the operation of the response message circuit 54 is thereby terminated. Note that this outgoing message takes some time to activate the called party's receiving device on toll-free service telephone lines, so it may take some time for the called party's receiving device to function and the ringtone to be sent. done in between.

On the other hand, in step Sll, a ringing tone is detected. In this case, since the relay 58 was turned on in the previous step S7, the ringing sound detection circuit 56 is connected to the telephone lines 12a and 12b, and the ringing sound detection circuit 56 detects the ringing sound. This ringtone is a 4-tone tone that is used to notify the calling party that a ringing signal is being sent to the called party.
It is an audible signal obtained by modulating 00H2 at 16 Hz, and in particular, as shown in FIG. 3, it is sent out for 1 second every 3 seconds (it is sent out for 1 second and stopped for 2 seconds, which is repeated).

Then, in step 313, the ring tone is sent to telephone 16. That is, in step 13, when the ringing signal detection circuit 56 receives a ringing tone, the relay 60 is turned on for 1 second every 3 seconds in synchronization with the ringing tone. Once this relay 60 is turned on, the relay 62 is held in the on state.

In this case, when relay 60 is on (when there is a ring tone), relay 64 is turned on, thereby connecting telephone 16 to telephone lines 12a and 12b. Therefore, the ring tone is transmitted to the telephone 16.

In step S15, it is determined whether the ringing tone has disappeared (or whether the called party has answered). That is, when there is a ring tone, the relay 60 is activated for only 2 seconds every 3 seconds, the time lag relay 66 is not activated, and when the called party answers, the relay 60 is activated for more than 2.5 seconds. For example, it is determined that the called party has answered, the time lag relay 66 is activated, and the process proceeds to the next step S17.

In step 317, the telephone 16 is disconnected from the telephone lines 12a, 12b due to the relay 60 being reset.

In step S19, a response message is sent to the telephone lines 12a and 12b for a certain period of time. That is, in step 319, the time lag relay 6
6 is activated, the timer circuit 68 is activated for 3 seconds, during which time the relay 70 is turned on and a message is sent from the response message circuit 72 to the telephone lines 12a and 12b (the called party), for example, ``It's Osaka. A response message is transmitted.In this case, when the relay 70 is in the on state, charge is stored in the capacitor 74.

In the next step S21, the telephone 16 connects to the telephone port m12a.
, 12b, so that the calling party and the called party can talk. That is, this relay 70 is turned on and then reset after 3 seconds, so the charge stored in the capacitor 74 is discharged to the relay 76, the relay 76 is turned on for a short time, and when the relay 76 is turned on, , relay 28 is turned on and telephone 16 is connected to telephone lines 12a and 12b. Therefore, in this state, the calling party can have a conversation with the called party.

Although the relay 76 turns off in a short time after being turned on, the relay 30 is turned on by connecting the telephone 16 and the telephone lines 12a and 12b, and thereby the relay 28 is turned on. state is maintained.

Further, when the relay 28 is turned on, the relay 34 is turned off, thereby restarting the starting signal oscillator 32 and the like.

Then, in the next step S23, when the conversation between the calling party and the called party is over, the relay 30 is turned off by turning off the hook switch 20 of the telephone 16.
is turned off and the entire device returns to its original state.

In the embodiment described above, the time switch 37 allows selecting a called party to be called from among a plurality of called parties at different times. Therefore, for example, automatic transmission circuit 3
When a specific company is called by 2a, another location can be called by automatic calling circuit 32b on holidays or outside working hours. In other words, data for calling, for example, a person in charge outside the company may be input into the memory element of the automatic transmission circuit 32b.

In addition, in the above-mentioned embodiment, two telephones 14 and 16 are used.
is provided, but one of the telephones 14 may be omitted; in that case, the telephone 14 or 16 is connected to the telephone line 1.
Relays 24 and 26 for disconnecting from 2a, 12b
becomes unnecessary.

Additionally, in the embodiments described above, after the activation signal for calling a particular called party is transmitted, the outgoing message circuit 72
Although the system is configured to send an outgoing message to the calling party, this outgoing message circuit 72 may not be provided.

Further, in the above-described embodiment, a contact relay was used to operate each circuit, but a non-contact relay may be used instead of this relay.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing one embodiment of the present invention. FIG. 2 is a flow diagram for explaining the operation of this embodiment. In the figure, 10 is a telephone automatic calling device, 12a and 1
2b is a telephone line, 18 and 20 are hook switches, 3
2a and 32b are automatic transmission circuits, 37 is a time switch, and 38 is a start signal transmitter. Patent applicant Hachiki Co., Ltd. Agent Patent attorney Oka 1) Zen Kei (one idiot)

Claims (1)

[Scope of Claims] A plurality of activation signal transmission means are connected to a telephone line and each transmits a activation signal for calling a specific called party by turning on a hook switch of a calling party's telephone. 1. An automatic telephone calling device, comprising: a time switch for selecting any one of the plurality of activation signal transmitting means according to time.