JPH0243391B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic card type public telephone that is more convenient than conventional telephones.

[Conventional technology]

In conventional magnetic card-type public telephones, the magnetic card only stores the number of remaining calls, and the phone has a read/write control function for the phone number on the magnetic card and the number of calls stored in the phone. Because the system did not have a function to automatically send out a dialing signal, it had the following drawbacks: (a) Even if the person on the other end of the call was busy or absent, the user had to dial again each time. There must be.

(b) Even when using a magnetic card public phone for purposes where the other party is specified, such as answering a pager call, the same telephone number must be dialed each time.

[Problem that the invention seeks to solve]

The problem to be solved by the present invention is that in magnetic card type public telephones, if the caller is the same as the previous caller, the caller does not need to re-dial each caller to dial the same phone number as the previous caller. It can be said that it is necessary to automatically send out the information.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a magnetic card type public telephone that automatically sends out the telephone number of the other party when making a call to the same party as the previous call.

[Means for solving problems]

In order to achieve the above object, the present invention includes a magnetic card control section, a display section, a storage section, a dial section,
A magnetic card type public telephone equipped with a dial signal sending section, when a magnetic card is set in the magnetic card control section, detects this and displays the telephone number and remaining call frequency stored on the magnetic card. means for reading and storing the telephone number in the storage section; and means for displaying the telephone number thus stored on the display section;
means for detecting when a specific dial number that allows the displayed telephone number is input from the dial section and causing the dial signal transmitting section to transmit the telephone number displayed on the display section;
means for storing the other number anew in the storage unit and transmitting it by the dial signal transmission unit when a dial number for disabling the displayed telephone number and specifying another number is input from the dial unit; means for calculating the number of remaining calls based on billing information sent from the local area in conjunction with a call between the other party and the other party; and a telephone number stored in the storage unit at the end of the call. and a means for reading the remaining call frequency and storing it in the magnetic card anew, and then returning it by the magnetic card control section.

[Effect]

In the magnetic card type public telephone according to the present invention,
If the other party is the same as the previous call, there is no need to dial the same number again each time.
The same dialed number will be automatically sent out.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

In the figure, 1 is a handset used to make a call to the other party, 2 is a dial part for dialing with push buttons, and 3 is a display of the telephone number of the other party to be called, and information stored on a magnetic card. 4 is a display unit that displays call frequency and available call time; 4 is a magnetic card control unit that performs control for collecting charges from a magnetic card in place of hardening; 5;
is a push button dial (PB) signal sending unit, 6 is a telephone control unit for controlling the whole, 8 is a billing signal receiving unit, 9 is a storage unit, 9a is a telephone number code storage unit,
9b is a frequency counter section.

FIG. 2 is an explanatory diagram of a magnetic card used in the magnetic card type public telephone according to the present invention.

In the figure, 7 is a magnetic card, which includes a telephone number storage area 7a and a remaining call frequency storage area 7b.

Next, the rotation operation will be explained with reference to FIGS. 1 and 2.

First, when making a call, the caller picks up the handset 1 and inserts the magnetic card 7, on which the telephone number and remaining power are stored, into the magnetic card control section 4. The telephone control section 6 stores the telephone number read from the magnetic card 7 by the magnetic card control section 4 in the area 9a of the storage section 9, and displays it on the display section 3.

The caller looks at the phone number displayed on the display unit 3, and if the phone number matches the phone number of the other party that the caller was trying to dial, dials a predetermined specific dial ( For example, when the # button is pressed on the dial section 2, the telephone control section 6 reads out the telephone number displayed on the display section 3 from the storage area 9a,
It is sent as a PB signal (two-frequency dial signal) to a telephone office (not shown) through the PB signal sending unit 5. The exchange within the telephone office receives the sent telephone number and proceeds to connect.

If the telephone number displayed on the display unit 3 is different from the number of the other party that the caller was trying to dial, the caller dials the telephone number of the intended party using the dial unit 2. Dial. The telephone controller 6 confirms that the received dial signal is a dial signal other than the specific dial (the dial marked with #), thereby determining whether the received dial signal is due to the caller's normal dialing operation. be able to recognize something.

Therefore, if this first digit dial signal is other than the specific dial (# mark), the telephone control section 6 resets the telephone number that had been displayed on the display section 3 and dials the received one-digit number. The telephone number is written in the storage area 9a and displayed on the display section 3, and at the same time, the PB is transmitted through the PB signal sending section 5.
It is converted into a signal (two-frequency dial signal) and sent to the telephone office.

The same operation is repeated sequentially, and the display unit 3
When all of the telephone numbers dialed by the caller are displayed and written into the storage area 9a, almost at the same time, the telephone exchange at the central office also receives all of the telephone numbers and proceeds to the connection operation. After the other party answers, the telephone control section 6 overwrites the telephone number displayed on the display section 3, that is, the telephone number of the other party currently on the call, into the telephone number storage area 7a of the magnetic card 7 through the magnetic card control section 4. (The telephone number previously stored in the magnetic card 7 is erased).
Thereafter, the telephone control section 6 clears the telephone number displayed on the display section 3, writes the remaining power read from the magnetic card 7 into the storage area 9b, and also sends the remaining power and the remaining power from the telephone office. The callable time calculated based on the incoming billing information (received by the billing signal receiving section 8) is displayed on the display section 3.

During a call, the telephone control unit 6 subtracts the remaining power from the available talk time based on the billing information sent from the telephone office, and displays the subtracted remaining power on the display 3 sequentially, and stores the subtracted remaining power in the storage area. Write it in 9b.

At the end of the call, the telephone control section 6 reads the remaining power displayed on the display section 3 from the storage area 9b, and overwrites the remaining power in the magnetic card 7 in the storage area 7b of the magnetic card 7 through the magnetic card control section 4. (The remaining power stored in the magnetic card will be erased), and the magnetic card 7 is returned.

FIGS. 3A and 3B show the above operation process as a flowchart.

The chart shown in the figure consists of a number of steps a through n, but there is no need to explain them again.

〔Effect of the invention〕

As explained above, according to the present invention, not only a telephone number storage area is added to the magnetic card in addition to the remaining number of card points, but also a telephone number storage area is added to the magnetic card, and a telephone number read/write control function for the telephone number in the magnetic card is provided, as well as a dial signal stored in the telephone. By adding the automatic transmission function, the following advantages arise.

(1) If you need to call again because the other party is busy or absent, there is no need to dial again, and you can make the call with just one or a few touches.
Moreover, there is no need to worry about checking the phone number by looking at the memo.

(2) Due to the above (1), not only the time required for dialing can be shortened, but also the probability of incorrect dialing is almost zero.

(3) If this magnetic card type public telephone is used for applications where the other party is specified, such as answering a pager call, the trouble of dialing the same telephone number every time will be eliminated.

In order to make it easier to understand, the present invention has been described in terms of public telephones that use only magnetic cards, but it is clear that the present invention can be applied to telephones that use both hardened and magnetic cards, and that the effects are also great. be.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention;
FIG. 2 is an explanatory diagram of a magnetic card used in a magnetic card type public telephone according to the present invention, and FIGS. 3A and 3B are flowcharts showing the operation process of an embodiment of the present invention. Description of symbols 1... Transmitter/receiver, 2... Dial section, 3... Display section, 4... Magnetic card control section, 5
...PB signal sending unit, 6...Telephone control unit, 7...
. . . Magnetic card, 8 . . . Billing signal receiving section, 9 . . . Storage section.

Claims (1)

[Claims] 1. A magnetic card control section, a display section, a storage section,
In a magnetic card type public telephone equipped with a dial section and a dial signal sending section, when a magnetic card is set in the magnetic card control section, it is detected and the telephone number stored on the magnetic card is set. means for reading the remaining call count and storing it in the storage section; means for displaying the telephone number thus stored on the display section;
means for detecting when a specific dial number that allows the displayed telephone number is input from the dial section and causing the dial signal transmitting section to transmit the telephone number displayed on the display section;
means for storing the other number anew in the storage unit and transmitting it by the dial signal transmission unit when a dial number for disabling the displayed telephone number and specifying another number is input from the dial unit; After connecting with the other party, a means for calculating the number of remaining calls based on billing information sent from the central office side in conjunction with the call with the other party and storing the same in the storage unit again; and a telephone that is stored in the storage unit at the end of the call. 1. A magnetic card type public telephone set, comprising means for reading a number and a number of remaining calls, storing them anew in the magnetic card, and then returning them by the magnetic card control section.