JPS59140760A - Magnetic card dialing system - Google Patents

Abstract

PURPOSE:To use a magnetic card only for the dialing of a specific telephone number by recording the specific telephone number and inhibition information which inhibits its modification on the magnetic card. CONSTITUTION:A control part 10 is put in operation by off-hook operation to control a driving part 11, carrying the magnetic card 1 to a specific position. The control part 10 receives data based upon the output of a read head 13 from a data read part 14, stores respective pieces of information 7 and 8 in areas 4-6 and specific telephone numbers N1-Nn in a data storage part 15 such as a memory, and controls a talking circuit 16 when accounting information 7 includes call metering data and kind information 8 includes the inhibition information to close a speech loop. When abbreviated dialing key operation of push- button dialing 17 for specifying one of the specific telephone numbers N1-Nn is performed, the talking circuit 16 is controlled to perform the dialing of the corresponding telephone number.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a dialing system applied to public telephones that use magnetic cards as a substitute for coins.

[Prior art]

Conventional magnetic cards and magnetic card-operated public telephones allow dialing to any destination as long as the magnetic card has frequency data that allows calls. Moreover, when providing magnetic cards to employees, it is impossible to distinguish between public and private uses of the provided magnetic cards, and when distributing magnetic cards to customers for use in contacting one's own company,
This raises the possibility that the customer may use the magnetic card for other purposes.

As a countermeasure to this problem, it may be possible to use an incoming call charging system instead of issuing magnetic cards, but in this case,
The disadvantage is that the receiving party's consent is required each time a call is made, making the procedure complicated.

Note that the 800 number service used in the United States does not require the consent of the called party, but since it accepts calls from an unspecified number of people, it is possible for the paying caller to limit the number of callers. This causes disadvantages that cannot be achieved.

In addition, in order to limit the number of callers, it may be possible to record the telephone number of the called party on a magnetic card, but in the past, the telephone number could be freely updated, and the magnetic card could be used for other purposes. This results in the following drawbacks.

[Object and structure of the invention]

The present invention has been made in view of the above drawbacks of the prior art, and has the purpose of making it possible to use a magnetic card only for dialing a specific telephone number, and prohibiting the use of a specific telephone number and its modification. To provide an extremely effective magnetic card dialing system that records information on a magnetic card and allows only dialing a specific telephone number in a public telephone according to prohibition information on the inserted magnetic card. It is something.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to figures showing examples.

FIG. 1 is a plan view of a magnetic card 1, in which a magnetic band 3 is formed on the surface of a card 2 made of an insulating material, and a frequency area 4 is shown.
A type area 5 and a number area 6 are provided, and the number area 6 records specific telephone numbers N1 to Nn, while the frequency area 4 records the number of calls allowed or the number of calls for which the caller pays. Charge information 7 indicating a limited amount is recorded, and a specific telephone number N1 is recorded in the type area 5.
Prohibition information that makes it impossible to change ~Nn is recorded, and furthermore, in accordance with the recording of the limit on the number of calls, limited information that there is a limit on the number of calls when making a call for which the caller pays is recorded, and these is recorded as type information 8.

FIG. 2 is a block diagram of a public telephone. When the hook switch 9 is turned on due to off-hook, a control unit 10 such as a processor is activated, and a magnetic card 1 is inserted by controlling a drive unit 11. When the magnetic card 1 reaches a predetermined position, the card sensor 12 detects this, and in response to the detection signal, the control unit 10 accepts data from the data reading unit 14 based on the output of the reading head 13. , each information γ of each area 4 to 6, 8 and specific telephone number N1 to
Nn is stored in the data storage unit 15 such as a memory, and if the rate information 7 includes call frequency data and the type information 8 includes prohibition information, the call circuit 16 is controlled to set the line terminal "1+".
” After closing the call loop between 2 and calling the specific phone number N1~
In response to the operation of the abbreviation key on the pushbutton dial 17 to designate any one of Nn, the telephone call circuit 16 is controlled to dial the telephone number corresponding to the operation.

In other words, if the specific phone numbers are, for example, the following three sets,
Next, the pushbutton dial 17 is operated.

03-509-5111...2...
・*10422-59-4260 ・・・・・・・
・・・・・・・・・＊20468-59-2305
・・・・・・・・・・・・・・・＊3 Then, control section 1
0 is set by the area code setting unit 18. Compare the own area code set by the area code setting unit 18 and the area code according to the operation, and if they do not match, dial the area code and subsequent numbers; make a call, but if they match. Then, you can dial the number without the area code.

Also, if only one specific phone number is recorded,
A dial call using a specific telephone number is made without waiting for the push button dial 17 to be operated.

Note that if the magnetic card 1 is to be used only within the city, the area code will not be recorded. In addition to omitting the comparison, only dialing is performed without the area code.

When a charging signal arrives from the exchange, the charging signal reception unit 19 generates a reception output, and the control unit 10 controls the data recording unit 20 in response to this, and the charging signal is not activated. Depending on the number of times the signal arrives, the data indicating the call frequency in the frequency area 4 is subtracted, and then updated recording is performed by the recording head 21.

However, if there is data indicating the call frequency limit paid by the callee in the call 1IF4 in the frequency area 4, and if there is limited information in the type area 5, the control unit 10 controls the signal generator in the call circuit 16. , sends a food signal indicating the subtracted call frequency to the billing device of the called party after the call ends, and when the call frequency reaches the limit, controls the call circuit 16 and forcibly disconnects the call loop. .

FIG. 3 is a flowchart showing the control status of the request dial transmission by the control unit 10. When PL "insert magnetic card" is performed and "off-hook" is performed, based on the output of the data reading unit 14, “Is there any prohibited information? ”, the answer is YES, and the answer is “One specific phone number?” ” is YES, “auto-dial” a designated number corresponding to the specific telephone number and proceed to “call”.

On the other hand, is there one specific phone number? ” is No, and “Multiple specific phone numbers?” If ``is YES'', in response to the above-mentioned ``abbreviation key operation'', the process proceeds to ``auto-dial the designated number of the key operation'' and proceeds to ``1 call''.

Further, if the answer is "No, is there more than one specific telephone number?", the telephone call circuit 16 and the drive section 11 are controlled to perform "1 forced disconnection/card return".

On the other hand, if the answer to "Prohibit information?" is No, it is determined that it is a general magnetic card, and after "permitting dialing" using the pushbutton dial 1T, the process shifts to "call".

In addition, public telephones or devices that can record and update the magnetic card 1 can update the specific phone number of the magnetic card 1 by providing a function to immediately return the magnetic card 1 according to prohibited information. It can be made impossible.

Therefore, if prohibited information and a specific telephone number are recorded on the magnetic card 1 before being issued or distributed, dialing other than the specific telephone number will be prevented, and it will be absolutely impossible to use the magnetic card 1 for calls for other purposes. It becomes impossible.

In addition, since the function of paying for calls by the caller can be achieved by simply modifying the public telephone, there is no need to modify the communication network, and it is economical and has a dialing function that eliminates the area code. This makes it possible to use the same magnetic card 1 nationwide, and also allows the callee to pay on a piecemeal basis since the number of calls subtracted based on the limited information is transmitted to the called party using a code signal. easily realized.

However, the recording location of each information and specific telephone number in Figure 1 may be determined depending on the situation, and the configuration in Figure 2 can be selected arbitrarily, and in Figure 3, the 'auto dial' Various modifications are possible, such as allowing dialing of a specific telephone number using the push button dial 17 instead of ".".

C Effects of the Invention] According to the above explanation, only dialing using a pre-recorded specific telephone number is permitted, and use for purposes other than the purpose is prevented. It is now possible to issue and distribute magnetic cards for the sole purpose of making calls to customers without anxiety, and it has become easier and more reliable for employees to manage usage status for public and private purposes. Significant effects can be obtained in terms of the operation of magnetic cards, such as the ability to promote orders by paying telephone charges.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a plan view of a magnetic card, FIG. 2 is a block diagram of a public telephone, and FIG. 3 is a flowchart showing the control situation of dialing by the control unit. 1...Magnetic card, 711...Charge information, 8...
- Work type information, 1o...control unit, 13...reading head, 14...data reading unit, 15...data storage unit, 16...talk port m, iy- ...Push button dial, N1-Nn...Specific telephone number. Patent applicant: Masaki Yamakawa, agent of Nippon Telegraph and Telephone Public Corporation

Claims (1)

[Claims] A magnetic card that records a specific telephone number and prohibition information that makes it impossible to change the specific telephone number, and a public card that, when the magnetic card is inserted, allows only dialing using the specific telephone number according to the prohibition information. A magnetic card dial system characterized by consisting of a telephone.