JPH01140843A - Magnetic card type telephone set - Google Patents

Abstract

PURPOSE:To repeatedly make a call when a handset is once picked up and a magnetic card is inserted, by providing a recalling means which transmits a disconnection signal disconnecting a telephone line and successively a call signal. CONSTITUTION:When a caller picks up the handset, inserts the magnetic card into a card insertion port, and operates an opposite dial number, call with the opposite is attained. When an operator intends to successively make a call with the other opposite after above call, the operator depresses a recalling button 11. Accordingly, recalling information is transmitted to the recalling circuit 12 of a control circuit 10, and recalling information is transmitted to a card unit 4 by the control circuit 10. Next, accounting counting is stopped and the disconnection signal is outputted to an exchanger 7, whereby the call signal is successively transmitted. Thus, a system comes to a state where a dial outgoing operation is attained again.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a magnetic card type telephone.

[Conventional technology]

In recent years, magnetic card type telephones have become widely used as public telephones, as they can be used easily without carrying around coins if a magnetic card called a telephone card is prepared in advance.

This magnetic card phone is especially convenient when making long distance calls from public phones, and it saves you the trouble of having to prepare a lot of coins in advance. It eliminates the hassle of having to make a call while making a call, and it also has the advantage of being more economical, as only the cost of the call used is deducted, compared to public phones that do not give change.

FIG. 3 shows a circuit block diagram of a conventional magnetic card type telephone. That is, in the magnetic card type telephone I, the telephone circuit 2 is connected to the exchange 7 via the telephone line 5,
Further, a control circuit 3 to which a dial circuit 6 and a card unit 4 are connected is connected to a telephone line 5.

In the conventional magnetic card type telephone configured as described above, a call operation is performed based on a flowchart as shown in FIG.

That is, when the caller picks up the handset (off-footer) and inserts a magnetic card into the card slot provided in the card unit 4, the telephone circuit 2 and the exchange 7 are connected, a call signal is issued, and the dialing operation is performed. becomes possible. When the dial circuit 6 performs a dialing operation, the control circuit 3 sends the signal to the exchange 7 as a dial signal. If you are connected to the other party by the exchange 7, you can make a call, and when you hang up the phone when the call ends (on-footer), the information that the call has ended is sent to the card unit 4 via the control circuit 3, and the card eject slot Then, the magnetic card with the frequency corresponding to the call fee deducted is returned.

[Problem that the invention seeks to solve]

However, with the conventional magnetic card type telephones described above, even if you make a call as described above, if the other party is busy or the call cannot be made due to a poor connection, etc. If the caller wants to make a call to the other party, the caller must hang up the handset, pick up the returned magnetic card, pick up the handset again, insert the magnetic card, and dial the number. Ta.

That is, when the user wants to use the telephone repeatedly, the user must repeat the operations of lifting and lowering the handset and inserting and receiving the magnetic card, which is extremely troublesome.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an efficient magnetic card type telephone that overcomes these drawbacks and allows repeated calls by simply lifting the handset and inserting a magnetic card.

[Means for solving problems]

The present invention provides a dialing circuit in which a telephone circuit is connected to an exchange via a telephone line, and also performs a dialing operation;
A control circuit connected to a card unit for inserting and ejecting a magnetic card and charge counting operations, in a magnetic card type telephone connected to the telephone line, means for transmitting recall information, and a control circuit based on the recall information. The present invention is characterized in that it is provided with a disconnection signal for disconnecting the telephone line and a recall means for subsequently transmitting a calling signal.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a circuit block diagram showing an embodiment of a magnetic card telephone according to the present invention, and FIG. 2 is a flowchart showing a call operation based on the circuit block diagram of FIG.

In this embodiment, as shown in the circuit block diagram of FIG. 1, the magnetic card telephone 1 is constructed as follows.

That is, the dial circuit 6 and the card unit 4 are connected to the control circuit 10, and the recall button 11, which is a means for sending recall information, is also connected to the control circuit 10. A recall circuit 12 is provided as a recall means for transmitting a disconnection signal and subsequent call origination signal to the exchange 7 based on the recall information sent by the operation.

In the magnetic card type telephone of this embodiment configured as described above, a telephone call operation is performed based on a flowchart as shown in FIG.

That is, when the caller picks up the receiver and inserts a magnetic card into the card slot, the telephone circuit 2 and the exchange 7 are connected, a call signal is issued, and dialing becomes possible. Then, when a dialing operation is performed in the dialing circuit 6, the control circuit 10 sends the dialing signal to the exchange a7. When the caller completes the dialing operation, the exchange 7 establishes a connection to the other party.

However, if the other party is busy or the connection cannot be established due to poor connection (■), or if you want to continue calling to another party (■), press the recall button 11 to retry the call. The information is sent to the recall circuit 12 of the control circuit 10. Then, the control circuit IO controls the card unit 4.
Recall information is sent to , billing is stopped, and
A disconnection signal is sent to the exchange 7, followed by a calling signal.

In other words, although the handset of a magnetic card type telephone is initially left up, the situation is the same as if the handset was actually put down, then immediately picked up again, and the magnetic card was inserted.

When the control circuit 10 sends a calling signal to the exchange 7 in this way, the dialing operation becomes possible again, and through the same operations as described above, the call is established and the call is established. When the control circuit 10 detects the connection to the other party, the card unit 4 starts the charge counting operation.

Furthermore, when the caller ends the call and hangs up the receiver, the telephone line 5 is disconnected, and the control circuit 10 detects that the call has ended. Then, the control circuit 10 issues a restoration instruction to all circuits, and the card unit 4
The magnetic card that has been charged and counted will be returned.

Note that after the handset is hung up and the magnetic card is returned, the repeat operation cannot be performed even if the repeat button is pressed.

In this way, in the magnetic card type telephone of this embodiment, by simply lifting the handset, inserting the magnetic card, and pressing the repeat button, the dialing operation can be repeated as many times as desired.

It should be noted that the present invention is not limited to the above-described embodiments, but is capable of storing a previously dialed telephone number in a recall circuit activated by pressing a repeat button, and dialing the same telephone number again. If a redial function is provided that allows users to dial, there will be no need to repeat dial operations. However, in this case, it is necessary to provide two recall buttons: one with a redial function and one that simply sends out recall information.

〔Effect of the invention〕

As described above, according to the present invention, by lifting the handset, inserting a magnetic card, and pressing the repeat button, dialing can be performed as many times as desired. The operation of making a call using a card-type telephone is greatly simplified and the operation efficiency is improved.

[Brief explanation of the drawing]

FIG. 1 is a circuit block diagram showing an embodiment of the magnetic card telephone of the present invention, FIG. 2 is a flowchart showing a call operation based on the circuit block diagram of FIG. 1, and FIG. 3 is a conventional magnetic card telephone. FIG. 4 is a circuit block diagram showing the configuration of a card-type telephone. FIG. 4 is a flowchart showing a calling operation based on the circuit block diagram of FIG. 1... Magnetic card type telephone 2... Telephone circuit 3... Control circuit 4... Card unit 5... Telephone line 6... Dial circuit 7... Switchboard 10... Control circuit 11... Recall button 12... Recall circuit agent Yoshiyuki Iwasa, patent attorney Figure 2 Figure 4

Claims (3)

[Claims] (1) The telephone circuit is connected to the exchange via the telephone line, and the control circuit is connected to the dial circuit that performs the dialing operation and the card unit that performs the insertion and ejection of the magnetic card and the charge counting operation. A magnetic card type telephone connected to a telephone line includes a means for transmitting recall information, and a recall means for transmitting a disconnection signal to an exchange based on the recall information and subsequently transmitting a call origination signal. A magnetic card type telephone set. (2) The magnetic card according to claim 1, characterized in that the means for transmitting the recall information is connected to a control circuit, and the recall means is provided within the control circuit. type telephone. (3) The magnetic card telephone set according to claim 1 or 2, wherein the means for transmitting the recall information is a recall button.