JPH08263779A - Remote management system - Google Patents

Abstract

PURPOSE: To allow a public telephone set to accurately respond to an incoming call from a center equipment to execute communication and accurately respond also to a general incoming call from an equipment other than the center equipment to execute talking. CONSTITUTION: When an incoming call arriving at an incoming circuit 11 through a line L does not arrive due to a caller's call cancel, the caller is recognized as a center and transmission is automatically executed. When the number of tones from the arrival of an incoming signal at the circuit 11 up to the stop of the arrival due to caller's call cancel is counted, the counted value is previously determined three tones and the number of tones of a rearriving incoming signal reaches two tones, the signal is recognized as an incoming signal from the center and the circuit 11 automatically responds to the call. Consequently a public telephone set can accurately respond to an incoming call from the center and execute communication. In addition, the set can accurately respond also to a general incoming call from an equipment other than the center to execute talking.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote management system comprising a public telephone and a center device for managing the public telephone.

[0002]

2. Description of the Related Art Conventionally, in this type of center device for managing public telephones, each public telephone is periodically called and safe information indicating the amount of coins stored in the public telephone by a call, the public telephone, etc. The call information indicating how many calls have been made and the failure status of the telephone are collected from each public telephone. Further, the center device calls each public telephone and sets the reference telephone charge information as a reference for calculating the telephone charge for each public telephone.

In this case, the center device first automatically dials the telephone number of the public telephone to make a call, and detects the response to the call (incoming call) of the public telephone. On the other hand, on the public telephone side, when the number of times of bell ringing due to an incoming call from the center device side reaches 5, for example, the public telephone automatically stands up and responds to the incoming call. When the center device detects a response to an incoming call from the public telephone, it is necessary to collect the safe information and the call information from the public telephone via the telephone line and revise the standard call charge for this public telephone. In this case, the new standard call charge information is transmitted and set.

[0004]

As described above, in the public telephone, when the bell rings, for example, five times due to the arrival of an incoming call,
I am trying to answer incoming calls automatically. Then, it communicates with the center device, and when such communication is completed, the telephone line is automatically opened. On the other hand, the general incoming call answering call is performed as follows. That is, the calling party first makes a call to the public telephone to make the public telephone receive the call, and the called party near the public telephone responds to the incoming call. Thus, a call is made between the calling party and the called party via the public telephone.

However, in this case, if the called party does not answer the off-hook within 5 rings of the bell in the public telephone that is ringing the incoming call, the public telephone automatically answers the incoming call and communicates with the center device. Since the data communication mode is set, there is a disadvantage that the above-mentioned incoming call response cannot be performed. Also, in addition to such a general incoming call answering call, when the maintenance person calls a public telephone to perform a maintenance test, the maintenance test cannot be performed unless the call is answered within 5 times. Therefore, it is an object of the present invention to appropriately respond to an incoming call from a center device to perform data communication, and also to appropriately respond to a general incoming call from a device other than the center device to make a call.

[0006]

In order to solve such a problem, the present invention comprises a public telephone and a center device which manages each public telephone by performing data communication with each public telephone via a telephone line. In the remote management system, a public telephone is provided with an identification means for identifying whether or not there is an incoming call from the center device based on an incoming signal coming to a telephone line. Further, the public telephone is provided with a transmitting means for transmitting to the center device, and the identifying means recognizes the other party as the center device when the incoming signal arriving on the telephone line does not come by the other party's abandonment of the call, and the transmitting means Is controlled. In addition, an incoming call response means for responding to an incoming call to the telephone line to the public telephone and the number of times until the incoming signal coming to the telephone line does not come due to the call abandonment of the other party are counted, and this number is preset. In the case of a predetermined number of times determined, a storage means for storing the first number of times is provided,
The number of incoming signals re-arriving on the telephone line is the second
When the number of times is reached and the first number is stored in the storage means, the other party is recognized as the center device and the incoming call response means is controlled.

[0007]

When the incoming signal arrives at the telephone line, it is discriminated whether or not the incoming call comes from the center device based on the incoming signal. As a result, the public telephone can accurately respond to the incoming call from the center device to perform data communication, and can respond to the general incoming call based on the call from the general caller other than the center device. You can make a call by responding appropriately. Further, when the incoming signal coming to the telephone line does not come due to the call abandonment of the other party, the other party is recognized as the center device and automatically originates. As a result, the public telephone does not automatically respond to the above-mentioned general incoming call that continues to receive the incoming call. Therefore, on the calling side calling the public telephone, the public telephone responds by off-hook. If the call is continued until then, the call through the public telephone can be surely performed. In addition, since the public telephone performs data communication only with the center device, it is guaranteed that it will be called from other devices and the amount information and call history information of the coins stored inside will be leaked to the other devices. Can be stopped. In addition, the number of times until the incoming signal that arrives at the telephone line does not come due to the call abandonment of the other party is counted, and if this number is the first predetermined number,
When the number of incoming signals that arrive again reaches the second number, the incoming signal is automatically answered. As a result, even if a general caller other than the center device makes a call to the public telephone, the probability that the public telephone automatically answers the general incoming call to the public telephone side is low, and therefore the public telephone is used. You can make calls easily.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 5 is a block diagram showing an embodiment of the remote management system according to the present invention. In the figure, this system comprises a public telephone 1 and a center device 2, and the public telephone 1 and the center device 2 are connected via a telephone line (hereinafter, line) L and an exchange 3, respectively. Here, the center device 2
Is configured as shown in FIG. That is, 21 is a line group consisting of a plurality of lines L, 22 is a line control unit for sending dial signals to the line group 21, detecting incoming signals, etc.
Reference numeral 3 is a display unit for performing various displays, 24 is a storage unit, 25 is a keyboard, 26 is a printer, and 27 is a control unit 27 for controlling the above-mentioned units.

Next, the public telephone 1 is constructed as shown in FIG. That is, in the figure, 11 is an incoming circuit for detecting an incoming signal coming to the line L, 12 is a power source circuit for generating power from the local power source of the exchange 3 supplied through the line L, and 13 is a dial signal. Dial sending circuit,
Reference numeral 14 is a data transmission / reception circuit for performing data communication with the center apparatus 2, and 15 is a communication circuit. Further, 16 is a dial key, 17 is a coin processing unit for processing the inserted coins, 18 is a control unit for controlling the above respective units, and 19 is a starting circuit. HS1 and HS2 are hook switches and R
L is a contact of a relay which operates by the output of the starting circuit 19 and captures the line L.

By the way, in the public telephone 1 having the above-described structure, when off-hook is performed, the hook switch HS1 is closed, so that the station power is supplied to the power supply circuit 12 through the line L. Then, the power supply circuit 1
At 2, the power source voltage V is generated from this station power source and the control unit 18
Etc. When the control unit 18 is activated by the power output from the power supply circuit 12, the hook switch HS2 is first activated.
Detects the state of and recognizes that it was activated for outgoing.

First, the relay is controlled to make its contact point R
After closing L, the operation of the dial key 16 is detected, the operated dial number is given to the dial sending circuit 13, and the dial sending circuit 13 sends a dial signal to the exchange 3 through the line L. By dialing in this manner, the other party is called. After that, when the control unit 18 detects the response of the opponent, the control unit 18 instructs the coin processing unit 17 to store the inserted and accumulated coins. When the on-hook end call is detected from the state of the hook switch HS2, the accumulated coin is returned and the relay contact RL is opened.

On the other hand, when an incoming call arrives at the line L, an incoming call buzzer to be described later sounds in the incoming call circuit 11. Also, 16
The incoming circuit 11 is activated by a power supply circuit, which will be described later, which generates a predetermined voltage by accumulating a capacitor by the incoming signal of Hz. When the control unit 18 is activated by off-hook or the like, the control unit 18 causes the hook switch HS to operate.
The state 2 and the incoming call detection signal c described below are detected to recognize that the incoming call has been activated. Here, conventionally, when an incoming call buzzer sounds a predetermined number of times or more, the incoming call is answered and data communication is performed via the data transmission / reception circuit 14 with the center device 2 which is the originator of the incoming call. Then, the call history information such as the number of calls made through the public telephone 1 stored in the built-in memory of the control unit 18 and the coin storage unit (not shown) in the coin processing unit 17 of the public telephone 1 are stored. Information about the stored amount of coins stored is sent to the center device.

Therefore, in the case where an incoming call is made by the off-hook response of the public telephone 1 by receiving an incoming call at the public telephone 1, the public telephone 1 side must be provided unless the response side goes off-hook within a predetermined number of ringing times of the buzzer. Then, since the data communication mode with the center device 2 is automatically set, it becomes impossible to make an incoming call response via the public telephone 1. Therefore, in the first embodiment of the present invention, when the incoming signal arrives and the incoming circuit 11 is activated, the center device is automatically operated at the time when the non-arrival of the incoming signal is detected due to the call origination of the other party. Call the other party to communicate with the center device.

FIG. 3 is a block diagram of the incoming circuit 11 ₁ showing the essential part of such a first embodiment. That is, in the figure, reference numeral 111 denotes an incoming call buzzer ringing circuit for ringing an incoming call buzzer (not shown) by an incoming call signal a of 16 Hz, and reference numeral 112 denotes an incoming call buzzer ringing from the incoming call signal a at an interval of 1 second on and 2 seconds off, An incoming call signal detection circuit that detects an incoming call signal b according to non-ringing, and 113 is an incoming call detection circuit that inputs the incoming call signal b and outputs an incoming call detection signal c. Further, 114 is a power supply circuit that generates power to be supplied to each part of the incoming circuit 11 from the incoming signal a, 115 is a reset circuit, 116 is a non-arrival of the incoming call after the incoming call is detected, It is an incoming signal interval timer that outputs a line capture signal d.

Next, FIG. 4 is a time chart showing the operation timing of each part of the incoming circuit 11 ₁ shown in the first embodiment. The main operation of the present invention will be described according to this time chart. First, the operation when the center device 2 calls the public telephone 1 will be described. When the center apparatus 2 calls the public telephone 1 and collects the above-mentioned call history information, coin amount storage information and the like from the public telephone 1, the telephone number of the public telephone 1 is transmitted. Then, the incoming signal a of 16 Hz arrives at the line L of the public telephone 1 (FIG. 4).
(C)). With this incoming signal a, the incoming buzzer sounding circuit 111 shown in FIG. 3 operates and the incoming buzzer sounds, and
The power supply circuit 114 outputs the power supply voltage V in response to the incoming signal a (FIG. 4A).

Here, the reset circuit 115 receives the power supply voltage V of the power supply circuit 114 and outputs a reset / reset release signal RST to each unit to reset or reset the respective units (FIG. 4 (b)). On the other hand, the incoming signal detection circuit 112 detects the incoming signal a after the reset is released, and outputs the incoming signal b at an interval of 1 second on and 2 seconds off, for example (FIG. 4 (d)). In this case, the incoming call detection circuit 113 outputs the incoming call detection signal c and sends it to the control unit 18 when the incoming call signal b output from the incoming call signal detection circuit 112 falls (FIG. 4 (f)). Further, the incoming signal interval timer 116 starts a timer for a predetermined time when the incoming signal b falls, and checks whether the incoming signal b rises when the incoming signal a arrives at the next interval within this time. To do.

Here, the incoming signal interval timer 11
In 6, when the next incoming signal b is detected within a predetermined time, the timer for a fixed time is restarted. Then, within this fixed time, after the incoming signal b that arrives at the time point turns off, the incoming signal that should arrive at the time point does not arrive due to the other party's abandonment of the call, and if the timer times out, the incoming signal interval timer 116 At this point, the line capture signal d is output (FIG. 4 (d)).

When the control unit 18 is activated by outputting the line capture signal d, the control unit 18 causes the call detection signal c from the call detection circuit 113 and the hook switch HS2.
Detects on-hook via the caller, and recognizes that the incoming call has arrived due to the call originating from the other party, and the incoming call has not been received due to the abandonment of the call originating from the other party. In this case, the control unit 18 determines that the destination of this incoming call is the center device 2. That is,
When calling each public telephone to perform data communication, the center device 2 first makes a call to the public telephone to ring a buzzer a predetermined number of times, and then abandons the call. After that, the center device 2 shifts to a standby state for an incoming call by calling back from the public telephone side by this calling.

Therefore, in this case, the control unit 18 of the public telephone
Performs sequential automatic dialing to the center device 2 by sequentially transmitting the telephone number of the center device 2 stored in the built-in memory to the dial transmission circuit 13. Then, when the center device responds to the incoming call based on this call, it transmits the call history information, the coin storage amount information and the like to the center device 2 via the data transmitting / receiving circuit 14. Further, when the standard call charge information, which is a reference for calculating the call charge to the public telephone 1, is received from the center device 2, it is stored in the built-in memory.
After that, when the data communication with the center device 2 is completed, the control unit 18 opens the relay contact RL to open the line L.
Open up.

On the other hand, not an incoming call from the center device 2,
For example, in the case of a general incoming call by a general caller to the public telephone 1, the buzzer continuously rings on the public telephone 1 side, and the nearest third party responds to the incoming call of the public telephone 1. be able to. That is, at this time, the control unit 18 of the public telephone 1 detects the state of the hook switch HS2 and the incoming call detection signal c and recognizes that the incoming call is answered by the off-hook of the third party. In this case, the control unit 18 activates the call circuit 15 without performing data communication via the data transmission / reception circuit 14. As a result, a call is made between the maintenance person and the third party. After that, the control unit 18
When the on-hook is detected from the state of the hook switch HS2, the relay contact RL is opened to open the line L,
End the call.

As described above, in the public telephone 1, if the next incoming signal does not arrive within a certain time after the arrival of the incoming signal, the line L is captured and the center device 2 is automatically operated.
To call the center device 2 for data communication. As a result, the public telephone 1 does not automatically respond to the above-mentioned general incoming call which continues to be received. Therefore, if the calling side keeps calling until the other party answers off-hook. It becomes possible to make a call via the public telephone 1 according to the response from the other party. Further, since the public telephone 1 performs data communication only with the center device in which the telephone number is stored internally, the public telephone is illegally called from another device and the accumulated amount of coins stored in the public telephone is stored. It becomes possible to prevent the collection of information and call history information, and the change of data settings for public telephones.

In the second embodiment of the present invention, when the center device 2 performs data communication with the public telephone 1, first, the public telephone 1 is called and the buzzer is sounded a certain number of times to make the call. Abandon. After a lapse of 15 seconds, for example, the center device 2 calls the public telephone 1 again. In this case, the public telephone 1 stores the number of times the buzzer rings at the first incoming call, and when the number of times the buzzer rings at this incoming call reaches a predetermined number, the line L is captured and the incoming call is answered. After that, data communication is performed with the center device.

FIG. 6 is a block diagram of the incoming circuit 11 _{2 according} to the second embodiment. In the figure, the incoming buzzer sounding circuit 111, the incoming signal detecting circuit 112, and the incoming detecting circuit 113 are equivalent to those shown in FIG.
In addition, the incoming circuit 11 has two power supply voltages VDD and VME.
A power supply circuit 121 that outputs M, a reset circuit 122 that outputs two reset and reset release signals RST1 and RST2, an incoming signal count circuit 123, an incoming storage circuit 124, and an incoming response circuit 125 are provided.

FIG. 7 is a circuit diagram showing a detailed structure of the incoming circuit 11 ₂ shown in FIG. In FIG. 7, power is supplied by a Zener diode ZD, a first power supply circuit including a diode D1 and a capacitor C2, which outputs a power supply voltage VDD, and a second power supply circuit including a diode D2 and a capacitor C3, which outputs a power supply voltage VMEM. The supply circuit 121 is configured. In addition, the signal RST1 connected to the first power supply circuit is connected.
The reset circuit 122 is configured by the first reset circuit 11A that outputs the signal RST2 and the second reset circuit 11B that is connected to the second power supply circuit and outputs the signal RST2. In addition, the inverter 11C, the diode D3, the capacitor C
The incoming signal detection circuit 112 is constituted by 4 and the like. Further, the AND circuit 11D, the inverters 11E and 11L, the counting circuit 11F, the transistor TR, and the like constitute the incoming detection circuit 113. Further, the counting circuit 11F and the like constitute an incoming signal counting circuit 123, and the latch circuit 11J constitutes an incoming call storage circuit 124. Further, the counting circuit 11F, the AND circuit 11K, and the like constitute an incoming response circuit 125.

The operation of the incoming circuit 11 ₂ configured as above will be described with reference to the time chart of FIG. When the center device 2 calls the public telephone 1 to perform data communication with the public telephone 1, the telephone number of the public telephone 1 is transmitted. Then, the incoming signal a of 16 Hz arrives at the line L of the public telephone 1 (FIG. 8 (e)). This incoming signal a causes the incoming buzzer sounding circuit 111 shown in FIG. 6 to operate to ring the incoming buzzer, and the power supply circuit 121 outputs the power supply voltages VDD and VMEM in response to the incoming signal a (FIG. 8).
(A), (b)).

In this case, the reset circuit 122 receives the power supply voltage of the power supply circuit 121 and outputs the reset and reset release signals RST1 and RST2 to the respective parts to reset and release the respective parts (FIG. 8 (c), (D)). On the other hand, the incoming signal detection circuit 112 detects the incoming signal a and outputs the incoming signal b after the reset is released (FIG. 8).
(F)). In this case, the incoming call detection circuit 113 outputs the incoming call detection signal c at the falling edge of the incoming call signal b output from the incoming call signal detection circuit 112 and sends it to the control unit 18 (FIG. 8 (g)).

Further, in the incoming signal counting circuit 123,
In the case of the counting circuit 11F shown in FIG. 7, when the incoming signal b arrives three times, an "H" level signal is output from the output terminal Q3. As a result, in the incoming call storage circuit 124, in the case of the latch circuit 11J shown in FIG. 7, an “H” level signal is output from its output terminal Q (at the time of FIG. 8 (h)), and the latch circuit 11J resets the reset circuit 122. The "H" level output is maintained unless it is reset by the signal RST2 from. The output terminal Q2 of the counting circuit 11F which constitutes the incoming signal counting circuit 123 becomes "H" level when the incoming signal b arrives twice, and becomes the "L" level by the incoming signal b of the third time. Is output (between the time point of FIG. 8 (i) and the above time point).

If the center device 2 abandons the call during such an incoming call, the incoming signal a will not arrive at the public telephone 1 side. Then, the first power supply circuit that outputs the power supply voltage VDD in the power supply circuit 121 goes down (at the time of FIG. 8A), and the first reset circuit that outputs the signal RST1 in the reset circuit 122 is reset. The signal is sent out. At this point in time, the second power supply circuit that outputs the power supply voltage VMEM in the power supply circuit 121 has a large capacitance of its capacitor C3 and its load is the latch circuit 11J.
Not down because it is only. Therefore, the latch circuit 11
J remembers that the incoming signal b has arrived three times, and its output terminal Q maintains the "H" level.

In such a situation, when the call from the center apparatus 2 arrives again at the public telephone 1 due to the re-call from the center apparatus 2 (at the time of FIG. 8 (e)), the power supply circuit 12
The power supply voltage VDD of 1 rises and the reset circuit 12
The second signal RST1 also rises from "L" to "H" level (time points in FIGS. 8A and 8C). Therefore, the incoming signal counting circuit 123 (counting circuit 11F in FIG. 7) starts counting the incoming signal b after being reset by the signal RST1. Here, the output terminal Q0 of the counting circuit 11F outputs the "L" level only when the first incoming signal b is counted, and maintains the "H" level even when the subsequent incoming signal b is counted. Therefore, this is the inverter 11L and the transistor T as the incoming call detection signal c.
It is output to the control unit 18 via R (at the time point of FIG. 8 (g)). Then, when the second incoming signal b is counted, the output terminal Q2 becomes the “H” level (at the time of FIG. 8 (i)) and is given as one input of the AND circuit 11K of FIG.

On the other hand, "H" of the latch circuit 11J indicating that the number of times the incoming signal b is counted by the last incoming call is three times.
The level output is the AND circuit 11K via the diode D4.
Is given as the other input of. In this case, the AND circuit 11K outputs a signal of "H" level as the line capture signal d (FIG. 8 (j)). When the control unit 18 of the public telephone 1 is activated here, the already-received incoming call detection signal c is detected, the call is recognized from the center apparatus 2, and data communication with the center apparatus 2 is started.

As described above, when data communication is performed with the public telephone 1 in the center apparatus 2, first, the public telephone 1 is called to make a call, and the number of times of ringing of the incoming call buzzer caused by the call is set to 3 times. Abandon the call at that time,
The call is made again to the public telephone 1 after a certain time has elapsed. On the other hand, on the public telephone 1 side, the number of times the buzzer sounds at the first incoming call is stored, and if the number of times the buzzer sounds at the second incoming call reaches, for example, two, data communication with the center device is performed in response to the incoming call. It was done like this. Therefore, a general caller other than the center device 2 is a public telephone 1
There is a low probability that the public telephone 1 will automatically answer a general incoming call to the public telephone 1 side, such as making a call to the public telephone 1 to make an off-hook response and then making a call via the public telephone. It can be done easily.

[0032]

As described above, according to the present invention, when an incoming signal arrives at the telephone line, it is determined whether or not the incoming call is from the center device based on the incoming signal. , It becomes possible to perform data communication by accurately responding to an incoming call from the center device, and also appropriately responding to a general incoming call based on a call from a general caller other than the center device. You can make calls. Also, if the incoming signal coming to the telephone line does not come due to the call abandoned by the other party, this party is recognized as the center device and the call is automatically sent. There is no automatic response to the above-mentioned general incoming call. Therefore, if the calling side making a call to the public telephone keeps calling until the public telephone answers the off-hook, It is possible to reliably make a call via a public telephone. In addition, since the public telephone performs data communication only with the center device, it is guaranteed that it will be called from other devices and the amount information and call history information of the coins stored inside will be leaked to the other devices. Can be stopped. In addition, the number of times until the incoming signal that arrives at the telephone line does not come due to the call abandonment of the other party is counted, and if this number is the first predetermined number, the number of incoming signals that arrive again is the second. When the number of calls reaches the number of times, the incoming call is automatically answered. Therefore, even if an ordinary caller other than the center device calls the public telephone, the general telephone call to the public telephone side is also accepted. The probability that an automatic response will be made on the public telephone side is low, and therefore a call via the public telephone can be easily made.

[Brief description of drawings]

FIG. 1 is a block diagram of a public telephone according to an embodiment of the present invention.

FIG. 2 is a block diagram of a center device that constitutes the system of the embodiment.

FIG. 3 is a block diagram showing a first embodiment of an incoming circuit of the public telephone.

FIG. 4 is a time chart showing the operation of the circuit of the first embodiment.

FIG. 5 is a diagram showing a configuration of the system of the embodiment.

FIG. 6 is a block diagram showing a second embodiment of an incoming circuit of a public telephone.

FIG. 7 is a circuit diagram of the second embodiment circuit.

FIG. 8 is a time chart showing the operation of the second embodiment circuit.

[Explanation of symbols]

1 ... Public telephone, 2 ... Center device, 3 ... Exchange, 11 ...
Incoming circuit, 18, 27 ... Control unit, 21 ... Line group, 111
... incoming call buzzer ringing circuit, 112 ... incoming signal detection circuit, 1
13 ... incoming detection circuit, 114, 121 ... power supply circuit,
115, 122 ... Reset circuit, 116 ... Incoming signal interval timer, 123 ... Incoming signal counting circuit, 12
4 ... incoming call storage circuit, 125 ... incoming call response circuit, L ... telephone line.

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[Procedure amendment]

[Submission date] July 14, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

[0006]

In order to solve such a problem, the present invention comprises a public telephone and a center device which manages each public telephone by performing data communication with each public telephone via a telephone line. In the remote management system, when an incoming call arrives at the public telephone from the telephone line, this incoming call is
Satisfies the incoming call conditions that have been set in advance with the center device
Based on whether or not there is an incoming call from the center device , the identifying means identifies the incoming call from the center device.
In the case of being separated, a control means for controlling the start of data communication is provided. Further, the public telephone is provided with a transmitting means for transmitting to the center device, and the identifying means recognizes the other party as the center device when the incoming signal arriving on the telephone line does not come by the other party's abandonment of the call, and the control means to initiate a controlled was the center device and the data communication <br/> transmitting means by
It is obtained as that. In addition, an incoming call response means for responding to an incoming call to the telephone line to the public telephone and the number of times until the incoming signal coming to the telephone line does not come due to the call abandonment of the other party are counted, and this number is preset. When the predetermined number of times is set, a storage means for storing the first number of times is provided, and the identification means has the number of incoming signals re-arriving on the telephone line to the second number, and the first number is stored in the storage means. If it is stored, recognize the other party as the center device,
The control means controls the incoming call answering means and the center device.
The data communication is started .

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

[0007]

[Action] and incoming to the telephone line arrives, arrival the incoming call
Whether or not the incoming call conditions established with the center device in advance are satisfied
Whether or not there is an incoming call from the center device is identified according to As a result, the public telephone can accurately respond to the incoming call from the center device to perform data communication, and can respond to the general incoming call based on the call from the general caller other than the center device. You can make a call by responding appropriately. Further, when the incoming signal coming to the telephone line does not come due to the call abandonment of the other party, the other party is recognized as the center device and automatically originates. As a result, the public telephone does not automatically respond to the above-mentioned general incoming call that continues to receive the incoming call. Therefore, on the calling side calling the public telephone, the public telephone responds by off-hook. If the call is continued until then, the call through the public telephone can be surely performed. In addition, since the public telephone performs data communication only with the center device, it is guaranteed that it will be called from other devices and the amount information and call history information of the coins stored inside will be leaked to the other devices. Can be stopped. In addition, the number of times until the incoming signal that arrives at the telephone line does not come due to the call abandonment of the other party is counted, and if this number is the first predetermined number, the number of incoming signals that arrive again is the second. When the number of times reaches, the incoming call is automatically answered. As a result, even if a general caller other than the center device makes a call to the public telephone, the probability that the public telephone automatically answers the general incoming call to the public telephone side is low, and therefore the public telephone is used. You can make calls easily.

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] 0029

[Correction method] Change

[Correction content]

In such a situation, when the call from the center apparatus 2 arrives again at the public telephone 1 due to the re-call from the center apparatus 2 (at the time of FIG. 8 (e)), the power supply circuit 12
1, the power supply voltage VDD rises, and the reset circuit 1
The signal RST1 of 22 also rises from "L" to "H" level (time points in FIGS. 8A and 8C). Therefore, in the incoming signal counting circuit 123 (counting circuit 11F in FIG. 7),
After being reset by this signal RST1, the incoming signal b
Start counting. Here, the output terminal Q0 of the counter circuit 11F is, come to have counted the first time of the incoming signal b "L"
Since the level is output and the " L " level is maintained even when the subsequent incoming signal b is counted, this is output as the incoming detection signal c to the control unit 18 via the inverter 11L and the transistor TR (FIG. 8). (At the time of (g)).
Then, when the second incoming signal b is counted, the output terminal Q2 becomes the “H” level (at the time of FIG. 8 (i)) and is given as one input of the AND circuit 11K of FIG.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] 0032

[Correction method] Change

[Correction content]

[0032]

According to the present invention as described in the foregoing, the incoming arrives to the telephone line, the incoming incoming advance center
Since it is possible to discriminate whether or not the incoming call is from the center device according to whether or not the incoming call condition defined with the device is satisfied .
In the public telephone, it becomes possible to accurately respond to the incoming call from the center device and perform the data communication, and also to properly respond to the general incoming call based on the call from the general caller other than the center device. You can answer and make a call. Also, if the incoming signal coming to the telephone line does not come due to the call abandoned by the other party, this party is recognized as the center device and the call is automatically sent. There is no automatic response to the above-mentioned general incoming call. Therefore, if the calling side making a call to the public telephone keeps calling until the public telephone answers the off-hook, It is possible to reliably make a call via a public telephone. In addition, since the public telephone performs data communication only with the center device, it is guaranteed that it will be called from other devices and the amount information and call history information of the coins stored inside will be leaked to the other devices. Can be stopped. In addition, the number of times until the incoming signal that arrives at the telephone line does not come due to the call abandonment of the other party is counted, and if this number is the first predetermined number, the number of incoming signals that arrive again is the second. When the number of calls reaches the number of times, the incoming call is automatically answered. Therefore, even if an ordinary caller other than the center device calls the public telephone, the general telephone call to the public telephone side is also accepted. The probability that an automatic response will be made on the public telephone side is low, and therefore a call via the public telephone can be easily made.

[Procedure correction 6]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 7

[Correction method] Change

[Correction content]

[Figure 7]

Claims (3)

[Claims] 1. A public telephone and a center device connected to the public telephone via a telephone line. The center device manages each public telephone by performing data communication with each public telephone via the telephone line. In the remote management system, the public telephone is provided with an identification means for identifying whether or not there is an incoming call from the center device on the basis of an incoming signal coming to a telephone line. 2. The remote management system according to claim 1, wherein the public telephone is provided with a transmitting means for transmitting to a center device, and the identifying means receives an incoming signal coming to a telephone line by abandoning the calling of the other party. A remote management system characterized in that the partner is recognized as a center device when it disappears, and the transmitting means is controlled. 3. The remote management system according to claim 1, wherein the public telephone is provided with an incoming call response means for responding to an incoming call coming to the telephone line, and an incoming call signal coming to the telephone line is abandoned by the other party. Storage means is provided for counting the number of incoming signals until the time when they do not arrive and for storing the number of times as a first number when the number is a predetermined number, the identifying means is the incoming signal re-arriving on the telephone line. When the number of times has reached the second number and the first number is stored in the storage means, the remote party is recognized as the center device and the incoming call response means is controlled. .