JPS62286345A - Telephone set - Google Patents

Abstract

PURPOSE:To prevent useless power consumption and to facilitate the management of telephone charge by providing an IC-exclusive connector including a power switch turned on at the insertion of an IC card to at leat a master equipment or a key telephone set and loading/unloading the IC card to apply the on/off control of power supply. CONSTITUTION:When the IC card ICCD is inserted to a connector 5, a switch ICSW provided in the connector 5 is turned on and a relay P is turned on Then contact points Ps1, Ps2 are closed, output voltages v1, V2 are supplied to each section of the master equipment ME and power is supplied to all key telephone sets KT-1-KT-m. The IC card ICCD is connected electrically to an address bus, a data bus and a control line in the master equipment ME by the connector 5 provided to the master equipment ME to supply system data required for a control circuit CPU. Thus, the storage capacity of a RAM is decreased and the capacity of a backup battery is reduced.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a button telephone device, and more particularly to a power-saving button telephone device in which power supply is controlled on or off.

(Prior Art) As is well known, a conventional key telephone device is composed of a key telephone main device (hereinafter referred to as the main device 75) and a plurality of key telephone devices connected to this main device via a cable or the like. has been done.

The conventional button telephone device has a power switch S of the main device ME.
When W is turned on, power is supplied from the power supply circuit PW in the main device ME to the main device ME and all the key telephones IKT.

(Problems to be Solved by the Invention) The above-mentioned conventional technology has the following m points.

That is, in the conventional button telephone device, when the power switch SW of the main device ME is turned on as described above, power supply is started to all the button telephones KT, and the button telephones KT are either in call or on standby. Power was always supplied no matter what the situation was.

For this reason, there is a problem in that power is supplied even when the button telephone is not in use, such as when the telephone is not in use or when the telephone is not in use, resulting in wasted power consumption.

Furthermore, since the key telephones are always powered on due to the power supplied from the main device, anyone can freely make local and international calls from between the key telephones, making it difficult to manage telephone charges.

SUMMARY OF THE INVENTION An object of the present invention is to provide a button telephone device that eliminates the problems of the conventional devices described above.

(Means and effects for solving the problems) The present invention has the following features:
In a button telephone device comprising a button telephone main device and a button telephone, an IC-dedicated connector including a power switch that is turned on when an IC card is inserted is provided on at least one of the main device or the button telephone, and the IC card The main feature is that the power can be turned on and off by attaching and detaching the device.

(Example) An example of the present invention will be described in detail below with reference to the drawings. This embodiment shows an example of a button telephone device in which each button telephone is provided with a power switch.

FIG. 1 is a block diagram showing the overall configuration of the key telephone device of the present invention. ME is key telephone main device, KT-1,・
..., KT-m is a button telephone, CQ-1, --
-----, Co -n is a central line, LN-11° and N
-21,...---, LN-1m, LN-2m are button telephone main device ME and button telephone KT-1゜...
・, with a cable that connects to KT-m.

Note that, in this figure, the internal configuration of the key telephone KT-m is the same as that of the key telephone KT-1, so illustration thereof is omitted.

The main device ME connects a central office line circuit COT connected to the central office line CO and a sound source circuit TONE that generates a central office line CO dial tone, central line overtone, etc. to a button telephone, or connects a PB dial A communication path network SW having the function of connecting the PB dial oscillation circuit PBO3G that outputs data to the office line circuit COT; A control circuit C that takes incoming information from the station or controls the operation of the station line circuit COT.
PU, a memory ROM for continuous use that provides operating procedures (programs) to the control circuit CPU, a random access memory RAM in which necessary data is recorded, and a memory used for exchanging signals with each button telephone KT. Including the transmitter/receiver circuit XR and multiple transformers T, etc.
+F4 has been created.

In addition, PW is the power supply circuit of the button telephone main device MEL17), and the IC card IC is connected to the connector 5 of Dosei@ME.
The device is configured so that power is supplied when a CD is inserted. That is, when the IC card ICCD is inserted into the connector 5, the switch IC3W provided in the connector 5 is turned on, and the P relay is turned on.

As a result, contacts Psi and Ps2 are made, and output voltages v1 and V2 are supplied to each part of the main device ME, and power is supplied to all button telephones KT-1 to KT-m. For example, in the button telephone KT-1, power supply v2 → transformer T-11 → cable LN-11 → transformer T5 → power supply circuit KPW → transformer T6 → cable L
Power v2 is supplied to the power supply circuit KPW via N-21 → transformer T-21 → ground, and the power supply circuit KPW
The output voltage Vk is supplied to the button telephone KT-1.

The button telephone KT includes a keyboard KEY including a line selection key, a numeric keypad, and key contacts such as * and #, a light emitting diode LED as an indicator to indicate the usage status of the central office line, extension line, etc., a hook switch H3, a liquid crystal display, etc. A display DIP consisting of

Consists of a control circuit KPU that controls the button telephone KT, a read-only memory KOM, a random access memory KAM, a transmitter/receiver circuit KXR that exchanges signals with the main device ME, a speech circuit KSL, transformers T5 and T6, a speaker SP, etc. has been done.

Control circuit (processor) CPU of button telephone main device ME
The button telephone IKT-1 is also activated by a program hidden in advance in the dedicated memory ROM.
The control circuit (processor) KPU of the KT-m operates according to a program stored in advance in the continuous-exclusive memory KOM. Conventionally, system data was stored in the random access memory RAM, but in this embodiment, the system data is registered in the IC card ICCD, and no system data or only a small amount of system data is stored in the RAM. Configured not to register.

The IC card I CCD is electrically connected to the address bus, data bus, and control line in the main device ME by a connector 5 provided in the main device ME, and supplies system data required by the control circuit CPtJ. For this reason, the R
The system data setting area can be deleted from AM, and the RA
The storage capacity of M can be reduced, and the backup battery can be made smaller. Note that the IC card will be explained in detail later.

@Source circuit TONE is a dial tone, a central office line ringing tone (ringing tone from the central office line in general incoming call mode), and an extension ringing tone (ringing tone from Haku's button telephone KT-j).
, has the function of generating a busy tone (lockout tone) and a hold tone.

The control circuit CPU is a station line circuit C0T-1,...
.

Incoming call detection circuit lNC-1' in C0T-n,...
. . , INC-n (not shown) are sequentially referred to to constantly monitor which central office line Co-1 receives a call. A clock circuit CLK (not shown) controls the call time of each button telephone KT-1 and the ringing time (the time from when the ringtone starts ringing until the answer is answered).
and so on.

In addition, in the general incoming call mode, when a call from the central office line is rare, it is determined in advance which of the key telephones KT-1 to KT-m the central telephone ring tone will sound.
is specified. Here, key phone Bi K T
- Assume that m is the same.

While operating in the general incoming call mode, the central office line Co-1゜...
・When there is an incoming call to any one (C○-1) of con-n, the incoming call detection circuit lNC-1 of the corresponding station line circuit C0T-i detects the incoming call information and sends it to the control circuit CPU. Ru.

The control circuit CPU reads out the button telephone set to ring (in this example, KT-m) from the random access memory RAM, reads out the sound source selection information, and controls the call path network SW via the call path control circuit SWC. , press the button telephone K to select the corresponding tone from the tone source circuit TONE.
Send to T-m.

As a result, on the button telephone IiKT-m side, a central office line ringing tone unique to the button telephone is emitted from the speaker SP.

At the same time, the light emitting diode LED corresponding to the receiving station line lights up or blinks.

Keyboard KEY on button phone MI K T-m side
When you select the central office line for incoming calls by operating , and pick up the handset to answer, the control circuit K of the button telephone KT-m
The PU detects the office line selection information and the ON information of the hook switch H5, and sends the response signal to the main unit via the transmitting/receiving circuit KXR on the button telephone side, the transformer T6, the lower 2m of the transformer, and the transmitting/receiving circuit XR on the main device ME side. It is transmitted to the control circuit CPU on the device ME side.

In response, the control circuit CPU controls the sound source circuit TON.
E from the communication path network SW, a loop is formed in the office line circuit C0T-r, and then the office line co-i
is connected to the telephone line KSL of the key telephone KT-m designated for ringing via the office line circuit C0T-:, the telephone line network SW and the transformer T-1m.

In this way, the central office line Co-1 and the key telephone KT-m
A communication path between them is formed.

Next, the station line transmission operation will be explained. Button phone IK
When the transmitter/receiver is raised on the T-m side and the central office line key is pressed to select a central office line, the 1 control circuit KPU of the button telephone KT-m detects this and transmits the detection signal to the transmitting/receiving circuit of the button telephone. It is transmitted to the control circuit CPU via KXR, the transformer, the transformer on the main device ME side, and the transmitting/receiving circuit XR. In response, the control circuit CPU causes the office line circuit to form a loop, and then connects the office line to the call circuit KSL of the button telephone KT-m that made the call operation via the office line circuit, the call path network, and the transformer. do.

In this way, a communication path between the central office line and the key telephone KT-m is formed.

Subsequently, when a dial operation is performed from the key telephone KT-m, the control circuit CPU of the main device receives the dial information and stores the data corresponding to the key telephone KT-m set in the RAM in the main device. access. Through this access, service class data is first read, and it is checked whether the dial information satisfies the requirements of the service class.

The service class defines the range in which a key telephone can be used, and further includes the international calling class,
It is divided into five classes: long-distance call class, specific long-distance call class, local call class, and incoming call only class. Therefore, if, for example, a local call is registered as a service class, is it possible to make a call to a local phone and receive a call?
In other words, specific out-of-town, out-of-town, and international calls cannot be used.

When the service class requirements are met, the control circuit CPU of the main device next reads out speed dial or auto dial setting data from the received dial data.

Then, in the case of DP (d i a l p u l se > dial, the dial data is sent to the office line circuit.The office line circuit sends out the DP dial to the office line by turning the loop on and off. , PB (push
bu↑↑on) dial, the control circuit CPUG of the main device activates the PB dial oscillation circuit based on the setting data. The PB dial data output from the PB dial oscillation circuit is sent to the central office line via the communication path network and the central office line circuit.

In addition, if the received dial data is normal data other than speed dialing or auto dialing, the control circuit CPIJ of the main device transmits the dial data via the central office line circuit if it is a DP dial, or via the PB dial. If so, P
The signal is sent from the B-dial oscillation circuit to the office line via the communication path network and office line circuit.

In general, if the service class of the small telephone KT-m makes it impossible to make calls, the office line circuit is separated from the communication path network, and the sound source circuit is connected to the communication path network.
It is connected to the talking circuit of the key telephone KT-m via the transformer of the main device, and a lockout tone is sent out from the sound source circuit.

By the way, in the central office line incoming mode and the central office line outgoing mode,
If you want to hold and transfer a central office line using another button telephone KT, such as the KT-10 (not shown), you can press the hold button (not shown) that is required on the keyboard KEY when a call path is established with the central office line. ), the hold information is detected by the control circuit KPU of the button telephone KT-m, and the transmission circuit KXR, transformer T6, transformer T-
2m, I and the transmitting/receiving circuit XR on the main device ME side to the control circuit CPU.

In response, the control circuit CPU controls the station line circuit C0T-i to put the station line in a hold state (a hold resistor is inserted between the station lines L1 and L2 to hold it) and maintain the station line loop. At the same time, the control circuit CPU controls the speech path network SW via the speech path control circuit SWC, and controls the tone source circuit TONE.
The holding tone corresponding to the holding station line is transmitted to the 8th line, and the light emitting diode LED corresponding to the holding station line is blinked. As a result, the central office line side receives a holding tone, recognizes that the telephone is on hold, and waits, and the key telephone KT side also recognizes that the central telephone line is on hold through a hold display.

Next, the key telephone KT-m presses the small extension button (not shown) and dials the extension number of the extension key telephone KT-10, which is the transfer destination.The control circuit CPU receives the extension button information and the dial information, and then transfers the extension button to the main device ME. The data corresponding to the key telephone KT-10 set in the RAM of the key telephone KT-10 is accessed. This controls the call control circuit SWC, and the call path network SW controls the button telephone IJKT.
-10 side is selected, and the extension ring tone is sent from the sound source circuit TONE. At the same time, the extension call display is a light emitting diode LED.
will be displayed blinking. On the button telephone hall KT-10 side, the extension ring tone sounds, indicating that the extension is being called, so press the corresponding extension button on which the extension call display is displayed. This extension correspondence information is immediately transmitted to the control circuit CPU of the main device ME via the control circuit KPU, so the control circuit CPU disconnects the sound source circuit TONE from the extension call loop, stops sending out the extension ring tone, and displays the extension call display. Also stop.

In this way, an extension call is made between the key telephone KT-m, which is on hold at the central office line, and the transfer destination, KT-10, and the KT-10 is informed that there is an outside line and is asked to pick up the central office line on hold. Then, the button telephone KT-m hangs up. The hook switch H3 information of the button telephone IKT-m is transmitted to the control circuit CPU, and the KT-m call loop is disconnected under its control.

On the other hand, when the key telephone KT-10 responds by pressing the central office line button corresponding to the central office line that is on hold, the response information is transmitted in the same way as the response operation in the general call reception mode described above, and the call loop with the central office line is broken. This allows you to make telephone calls over a central office line. In this way, hold transfers and calls can be performed.

FIG. 2 shows the transmission format of one frame between the main device ME and the button telephone BNKT.

Between the transmitting/receiving circuit XR of the main device ME and the transmitting/receiving circuit KXR of the key telephone KT-m, as shown in FIG.
Information, display information, and communication path information are each transmitted sequentially in tens of bytes. Next, the mode is switched, and key information is transmitted from the key telephone KT to the main device ME in several-F bytes. After that, the mode is switched again.

These pieces of information become valid data when a change in status occurs, and invalid data is transmitted when there is no change. The control circuits CPU, KPU start control when valid data is received.

For example, this information transmission takes 1 bit for 1 ms and 1 frame96
This is repeated with a period of m seconds.

The information transmission between the main device ME and the button telephone KT is 60 bits and 60 msec, and the information transmission between the button telephone KT and the earthenware ME is 30 bits and 30 msec, each with a period of 30 msec.
Mode switching is performed in bits of 3 msec.

Next, FIG. 3 shows the general configuration of the IC card ICCD and how it is installed (or connected) to the main device ME.
This will be explained using FIGS. 4 and 5. 3 is a perspective view of the IC card ICCD and the connector, and FIG. 4 is a perspective view showing the positional relationship between the main device ME and the IC card ICCD attached thereto.

In general, the specifications required by users can be roughly divided into different types of users. For example, there are many requests in hospitals and schools to be able to accommodate more extension lines than central office lines so that calls between extension lines can be made more frequently.
On the other hand, in offices and the like, there are many demands for accommodating a large number of central office lines and managing central office line call charges for each individual telephone.

When installed in a factory, etc., it is often required that both the central office line and the extension line have large capacity, and that all functions such as central line outgoing regulation and call rate management are possible.

If a program is developed in advance for each type of user in this way, there is no need to prepare a program with a capacity that satisfies all functions.

By storing programs for each type of user in an IC card and using them selectively as appropriate, extremely great effects can be expected.

The IC card I CCD is approximately the size of a business card, and has an embossed area 1 where it can be engraved, as shown in Figure 3.
, an IC memory 2 , and an electrode section 3 consisting of a plurality of contacts electrically connected to the memory 2 .

On the other hand, the connector 5 that mechanically and electrically connects this to the main device ME has a terminal that elastically suppresses and holds the electrode portion 3 of the IC card, and a connecting portion 6 that is connected to the bus in the main device ME. and is attached to a predetermined position within the main device ME. Note that the connector 5 is provided with a vertical type connector and a horizontal type connector, and is selectively used depending on the type of use.

The IC memory 2 is an EEPROM (Electrical I
y Eras-able and Programma
ble Read Only) Remory) is used. In recent years, large-capacity devices with a capacity of 4 megabits have been realized, and there is no problem in terms of capacity.

The IC cart is Mitsubishi Electric MF4000 or M.
F5000 can be used. In addition, the connector 5 is a dedicated connector, and is connected to a data bus, an address bus, and a control line (for transmitting chip select signals, read/write signals, etc.) provided in the main device ME.
Connect the IC card I CCD.

As described above, system data such as system functions, system setting constants, line information, intercom, and security are registered in the IC card I CCD.

Insert the IC card ICCD in which system data is registered into the first
When inserted into the connector installed in the main device ME shown in the figure or FIG. 4, system data is read from the IC card ICCD and contributes to the operation of the button telephone device.

According to this embodiment, system data can be written to the IC card at any location and at any time.

Therefore, if you prepare an IC card in which system data is stored in advance, you can simply insert the IC card into the connector of the main device ME after the construction of the key telephone device is completed, and the main device ME will respond to the user's request. Be able to supply system data. Therefore, unlike conventional devices, it is no longer necessary to register a large number of system data one by one from a specific key telephone after construction is completed, resulting in significant time savings.

Furthermore, when a change in system data occurs, the changed data is stored in a new IC card by the data registration device DW, the IC card inserted in the main device ME is removed, and the new IC card is inserted. Just plug it in and you can change system data in a very short time. Therefore, compared to conventional devices, the time to stop the key telephone device is significantly shortened, making it easier to change system data, and changing the system data during non-business hours such as holidays and at night. This has the advantage of making the work cheaper as there is no need to choose between the two.

Next, a second embodiment of the present invention will be described.

In the first embodiment, the IC card I CCD is connected to the main device M.
In contrast to the device installed on the E side to control the power on/off, in the embodiment of Mizui 2, it is installed on the button telephone KT side and controlled individually from the terminal.

Attach (or connect) the IC card ICCD to the button telephone
The manner in which this is done will be explained using FIGS. 6, 7, and 8. 6 is a block diagram showing the overall configuration of the second embodiment, FIG. 7 is a perspective view showing the positional relationship between a button telephone and an IC card attached thereto, and FIG.
The figure is a block diagram showing the electrical connection between the key telephone KT and the IC card that is formed when the IC card ICCD is inserted into the connector.

In FIGS. 6, 7, and 8, the same reference numerals as in FIG. 1 indicate the same or equivalent parts as in FIG. 1. From FIG. 8, when the IC card ICCD is inserted into the connector 5, the switch IC3W arranged in the connector 5 closes, and the power supply circuit KP
W operates and supplies the output voltage Vk to each part, and the address bus, data bus, and control line in the button telephone and the address bus, data bus, and control line of the IC card ICCD are connected to each other.

The IC card ICCD has user data such as speed dial, auto dial, service class, and extension number registered, and when this IC card ICCD is inserted into the connector of the key telephone KT-r, the switch IC3W is turned on. Then, power is supplied to the key telephone KT-i. Next, the button phone! The control circuit KPU of aKT-i reads the data in the IC card ICCD according to the address, and sends the data to the transmitter/receiver circuit KXR and transformer T.
6 and transformer T-2 on the main device ME side; and transmits to the control circuit CPU via the transmitting/receiving circuit XR. The control circuit C
When the PU receives the data, it stores the data in the RAM in the main device ME.
The data is sequentially stored in the address corresponding to the button telephone KT-r.

As a result, the user data of the key telephone 1KT-r has been converted to the data registered in the IC card ICCD.

Next, when the user makes a call using the user data normally used by the user by dialing the key telephone KT-i, the control circuit CPU receives the dial information and accesses the data stored in the RAM. First, it is checked whether the dial information satisfies the requirements of the service class.

When the requirements of the service class are satisfied, the control circuit CPU next reads out speed dial or auto dial setting data from the received dial data. Then, in the case of DP dialing, the dial data is sent to the central office line circuit, while in the case of P'BB dialing, the main device ME
The PB dial oscillator circuit PBO3C is activated and the signal is sent to the office line via the PBB dial communication path network and the office line circuit.

In addition, if the received dial data is normal data other than speed dialing or auto dialing, the control circuit CPU of the main device transmits the dial data via the central office line circuit in the case of a DP dial, or on the other hand to the PBB dial. PB if available
It is sent to the central office line via the dial originating circuit, the communication path network, and the central office line circuit.

Contrary to the above, if the dial information operated by the user does not meet the requirements of the service class, that is, if oscillation is impossible or is impossible, the office line circuit is disconnected from the communication path network and the tone source circuit TONE is disconnected. The communication path network SW is connected to the communication circuit of the button telephone KT-1 via the transformer T-1i of the main device, and the sound source circuit T
Send a lockout tone from ONE.

According to the button telephone device of this embodiment, for example, if the service class data among the user data registered in the IC card ICCD is the local calling class, the main device M
Under E's program control, you can make local calls, receive central office calls, and receive calls from any key telephone with an IC card inserted.
It is now possible to transfer calls to a holding station, and also speed dial,
Auto dialing and extensions can be used, but IC
Key telephones without a card ICCD inserted cannot be used because power is not supplied to them.

Therefore, only the button telephone set equipped with the IC card ICCD can be operated, so that only those who have the IC card ICCD can use the button telephone set, and telephone charges etc. can be easily managed.

When a control program, system data, and user data that meet the user's required specifications are recorded on this IC card,
The main device ME or the key telephone KT operates according to the control program and system data, making it possible to easily create a key telephone device that meets the specifications required by the user.

The button telephone devices of the first and second embodiments include an IC that includes a power switch in either the button telephone or the main device.
Although the example has been described in which a connector dedicated to a card is provided, the present invention is not limited to this, and it goes without saying that both connectors may be provided with a connector dedicated to an IC card at the same time.

Although the present invention has been described so far as an embodiment of the present invention in a button telephone device in which the main device and the button telephone are separate, the present invention is not limited to this. It goes without saying that the present invention can be implemented in a stand-alone telephone, a so-called main button telephone in which a main device and a button telephone are integrally constituted, and these are included in the present invention.

(Effects of the Invention) As described above, the present invention provides an IC connector including a power switch on at least one of the main device or the key telephone, so the EC card can be used when not in use, when absent, on holidays, at night, etc. By storing them in bales, you can save electricity.

Furthermore, since the key telephone cannot be used unless the IC card is inserted into the IC connector, telephone charges can be easily managed.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of the first embodiment of the present invention, Fig. 2 is a diagram showing a transmission foot mat, Fig. 3 is a perspective view of an IC card and connector, and Fig. 4 shows an IC cart that can be set. FIG. 5 is a block diagram showing the electrical connection between the button telephone main device and the IC card, FIG. 6 is a block diagram of the second embodiment of the present invention, and FIG. 7 is a block diagram showing the electrical connection between the key telephone main device and the IC card. FIG. 8, which is a perspective view of the settable button telephone, is a block diagram showing the electrical connection between the button telephone and the IC card. I CCD...IC card, 1...embossed? +J
titlE, 2... IC memory, 3... Electrode part, 5
...IC connector, KPW, PW...power supply circuit, P
...Relay, IC C3W...Switch agent Patent attorney Hiraki) Superhuman (1 other person) Fig. 2 Fig. 5 Fig. 3 Fig. 4 Fig. 8

Claims (3)

[Claims] (1) In a button telephone device comprising a button telephone main device and a button telephone, at least one of the main device or the button telephone is provided with an IC-dedicated connector including a power switch that is turned on when an IC card is inserted. Features a button telephone device. (2) The button telephone device according to claim 1, wherein the main device into which the IC card is inserted reads and uses data stored in the IC card. (3) The key phone into which the IC card is inserted is configured to read data stored in the IC card and send it to the main device.
Key telephone device as described in Section 1.