JPS63128848A - Magnetic card type public telephone set - Google Patents

Abstract

PURPOSE:To execute the automatic transmission and the re-transmission by providing a telephone number reading means, an automatic transmitting means and a re-transmitting means, using a special magnetic card in which a telephone number is stored and only inserting the special magnetic card once. CONSTITUTION:When a special magnetic card 21 is inserted after the off- hooking, memory data in a card 21 are read by a card reading circuit. The data are sent to a CPU 19 and stored temporarily in a memory circuit 17. The CPU 19 acknowledges that the card 21 is a card to store a telephone number N, and displays the remaining number of times of the call and the number N at a display circuit 16. Thereafter, the dial data to the number N are successively to a dial transmitting circuit 14 and the dial of the number N is sent from the circuit 14 through a calling circuit 15 to a telephone line 3 automatically. When the number N is re-dialed during the calling and the dial number of *1 is inputted from a dial key 13, the CPU 19 judges that the re-dialing request is executed and reads the number N from the circuit 17. Thereafter, in the same procedure, the dial is automatically sent and after the response, the number of times of the calling is processed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a magnetic card type public phone, and more particularly to a magnetic card type public phone that uses a special magnetic card on which a telephone number is written.

[Conventional technology]

Traditionally, the magnetic card type public telephones (hereinafter referred to as conventional telephones) in this building use magnetic cards (hereinafter referred to as conventional magnetic cards) that store the number of available calls, and when making a call, After inserting the conventional magnetic card into the card slot of the conventional telephone, dialing was performed manually from the conventional telephone. If, after dialing, the other party is busy and needs to dial the same number again, the conventional magnetic card must be removed and reinserted before dialing.

[Problem that the invention seeks to solve]

In the conventional telephones mentioned above, the telephone number is not stored on the conventional magnetic card used, so it is necessary to dial manually, especially if the other party is busy, and then insert the conventional magnetic card again. There was a drawback that I had to manually dial it again.

[Means for solving problems]

The magnetic card type public telephone of the present invention includes a recognition means for recognizing that it is a special magnetic card, a reading means for reading a telephone number stored in the special magnetic card, and an automatic system for reading the telephone number. The apparatus includes a calling means for making a call, a display means for displaying the telephone number, and a re-calling means for re-calling the telephone number using a specific dial.

〔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 same figure, this embodiment is a magnetic card with memory (hereinafter referred to as MCD) in which telephone numbers etc. are stored as a special magnetic card.
)21 and MCD2 inserted from the card insertion slot.
A card reading circuit (hereinafter referred to as CB, D) 12 reads the memory of 1, a dial key (hereinafter referred to as DL) 13 for manually inputting a telephone number, etc., and a dial originating circuit (hereinafter referred to as O8C) for transmitting a dial number. ) 14, a communication circuit (hereinafter referred to as SPC) 15 that sends and receives signals from the telephone line 3, and a display circuit (hereinafter referred to as DI) that displays telephone numbers, etc.
8P) 16, a memory circuit (hereinafter referred to as MEM) 17 that stores telephone numbers, control programs, etc., and a card writing circuit (hereinafter referred to as CWT) 18 that writes the remaining call count after the end of the call to the memory in the MCD 21. , and a central control circuit (hereinafter referred to as CPU) 19 that controls the entire system.

Next, the operation of this embodiment will be explained.

First, after the user goes off-hook (not shown), the MCD
21 into the card slot. Inserted MCD21
The data written in the memory in the MCD 21 is read in the CD 12.

The memory in this MCD21 contains the remaining number of calls and the telephone number N.
Assume that the data has been written.

The data read by the CRD 12 is sent to the CPU 19 and temporarily stored in the MEM 17. The CPU 19 recognizes from the sent data that the MCD 21 is a card that stores the telephone number N, and displays the telephone number N after displaying the remaining number of calls of the MCD 21 on the DISP 16. after that,
The CPU 19 sequentially sends the dial data for the telephone number N to 08C14, and from 08C14 the dial data for the telephone number N is automatically sent to the telephone line 3 via the KSPC 15.

The response to this sent dial is detected by 5PC15 via telephone port #3, and the detection signal is sent to 8PC15.
The user of the MCD 21 can start a call under the control of the CPU 19 after receiving the message from the CP.
U19 performs call frequency subtraction processing, and after the call ends, MeD21
The subtraction processing result is written to the memory in the CWT 18K. When this writing is completed, the MCD 21 is returned from the card return slot.

If a busy tone is detected by the 8PC 15 via the telephone line 3 in response to the transmitted dial, and the user hears the busy tone on the handset (not shown) and wants to redial the telephone number N. When a dial number for a re-dial request, for example a dial number of "≠1" is input from L)Li2, cpui9 judges it as a re-dial request and sends it to MEM17.
The telephone number N of MCD 21 is read from . Thereafter, the dial is automatically sent in the same procedure as in the case of the first dial sending described above, and after the other party answers, the number of calls is processed.

If the call is busy again, the above steps 111fi can be repeated.

If the other party is talking and you want to end the call, you can go on-hook and the MCD 21 will be returned from the card return slot without performing call count processing.

In this way, once the MCD 21 is inserted, redialing can be automatically performed any number of times by inputting a specific dial number without having to reinsert the MCD 21 in the case of redialing.

〔Effect of the invention〕

As explained above, the present invention is equipped with a telephone number reading means, an automatic dialing means, and a re-calling means, and by using a special magnetic card in which a telephone number is stored, the special magnetic card can be inserted into the This has the effect of automatically calling and re-calling.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. 12... Card reading circuit (CB, D), 13.
...Dial key (DL), 14...Dial outgoing circuit (OSC), 15...Telephone circuit (8PC), 16...Display circuit (DI8P) ,
17...Memory circuit (MEM), 18...
... Card writing circuit (CWT), 19 ... Central control circuit (CPU), 21 ... Memo I

Claims (1)

[Claims] recognition means for recognizing that it is a special magnetic card; reading means for reading a telephone number stored in the special magnetic card; calling means for automatically making a call by reading the telephone number; and displaying the telephone number. What is claimed is: 1. A magnetic card type public telephone set comprising display means for re-dialing the telephone number using a specific dial.