JPS6356742B2 - - Google Patents

Description

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

[Prior art]

Conventional magnetic cards and magnetic card public telephones allow dialing to any destination as long as the magnetic card has frequency data that allows calls. 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 contacting your company,
This raises the possibility that customers may use the magnetic cards for other purposes.

As a countermeasure for this, it may be possible to use an incoming call charging system instead of issuing magnetic cards, but in this case, the consent of the called party would be required each time a call is made.
This results in the drawback that the procedure becomes troublesome.

Note that the incoming call billing system for 800 number services used in the United States does not require the consent of the called party, but since calls are accepted 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.

Also, 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.
In the past, it was possible to freely update the telephone number, which resulted in the disadvantage that the magnetic card could be used for other purposes.

[Object and structure of the invention]

The present invention has been made in view of the above drawbacks of the conventional technology, and has the purpose of making a magnetic card usable only for dialing a specific telephone number, and includes information on the specific telephone number and prohibition that makes it impossible to change it. To provide an extremely effective magnetic card dialing system that records information on a magnetic card and allows public telephones to dial only a specific telephone number according to the prohibition information on the inserted magnetic card. It is.

〔Example〕

Hereinafter, details of the present invention will be explained 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, a type area 5, and a number area 6 are provided. , specific telephone numbers N ₁ to Nn are recorded, while frequency area 4
, there is recorded charge information 7 indicating the number of calls allowed or the limited number of calls to be paid by the called party, and in the type area 5, a specific telephone number N ₁
Prohibited information that makes it impossible to change ~Nn is recorded,
Further, in accordance with the recording of the limited amount of call frequency, limitation information indicating that there is a limited amount of call frequency when making a call for which the call fee is paid by the called party is recorded, and these are recorded as type information 8.

FIG. 2 is a block diagram of a public telephone, in which a control section 10 such as a processor becomes operational in response to the off-hook turning on the switch 9, controls the drive section 11, and drives the inserted magnetic card 1. When the magnetic card 1 reaches a predetermined position, it is detected by the card sensor 12, and in response to the detection signal from the card sensor 12, the control unit 10 receives data from the data reading unit 14 based on the output of the reading head 13. ~6 Information 7 and 8 and specific telephone number
N ₁ to Nn are stored in the data storage unit 15 such as a memory, and if the charge information 7 includes call frequency data and the type information 8 includes prohibition information, the call circuit 1
6 to close the call loop between the line terminals L ₁ and L ₂ , and then open the call circuit 16 in response to the operation of the abbreviation key on the pushbutton dial 17 for specifying any of the specific telephone numbers N ₁ to Nn. control to dial a telephone number according to the operation.

That is, if the specific telephone numbers are, for example, the following three sets, the pushbutton dial 17 is operated as follows.

03-509-5111......*1 0422-59-4260......*2 0468-59-2305......*3 Then, the control unit 10 selects the own city set by the area code setting unit 18. The area code and the area code corresponding to the operation are compared, and if they do not match, the area code and subsequent numbers are dialed, but if they match, the area code is omitted and the dial is made.

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

Note that when the magnetic card 1 is used only within the city, the area code is not recorded, so in this case, the control unit 10 determines this and compares it with the area code in the area code setting unit In addition to omitting the above, only dialing will be made without the area code.

When the called party responds and the call state is established and a billing signal arrives from the exchange, the billing signal receiving section 19 generates a reception output, the control section 10 controls the data recording section 20 in response to this, and the billing signal arrives. According to the number of calls, 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 to be paid by the callee 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, A code signal indicating the subtracted call frequency is transmitted to the billing device of the called party after the call ends, and when the call frequency reaches the limit, the call circuit 16 is controlled to forcibly disconnect the call loop.

FIG. 3 is a flowchart showing the control status of dialing by the control unit 10. When the “magnetic card is inserted” and the “off hook” is performed, the “off hook” is performed based on the output of the data reading unit 14. Is there prohibited information?" is determined to be YES, and if "One specific phone number?" is YES, the system will "auto-dial the specified number" according to the specific phone number and proceed to "Call". Transition.

On the other hand, if "One specific phone number?" is NO and "Multiple specific phone numbers?" is YES, then "Specified key operation number" is Autodial” and “Call”
Move to.

Also, if the answer is “Multiple specific phone numbers?”,
It controls the communication circuit 16 and the drive unit 11 to perform "forced disconnection/card return".

On the other hand, if "Is there any prohibited information?" NO, it is determined that it is a general magnetic card, and after "permitting dialing" using the pushbutton dial 17, the process shifts to "call".

In addition, for public telephones or devices that can record and update records on the magnetic card 1,
By providing the function of immediately returning the magnetic card 1 according to the prohibition information, it is possible to make the specific telephone number of the magnetic card 1 impossible to update.

Therefore, if prohibited information and a specific phone number are recorded on the magnetic card 1 before being issued or distributed, dialing other than the specific phone number will be blocked, and the magnetic card 1 will not be used for calls for other purposes. Absolutely impossible.

In addition, since the function of paying the call fee can be realized only by modifying public telephones, there is no need to modify the communication network, which is economical, and by having a dialing function that omits the area code, it can be used nationwide. In addition, it is possible to use the same magnetic card 1 for both calls, and since the number of calls subtracted according to the limited information is transmitted to the called party using a code signal, it is easy to implement a piecework payment system for the called party. .

However, the recording location of each information and specific telephone number in Figure 1 may be determined depending on the situation.
The configuration shown in FIG. 2 can be selected arbitrarily, and in FIG. It can be freely transformed.

[Effects of the Invention] As is clear from the above explanation, according to the present invention, only dialing using a pre-recorded specific telephone number is permitted and use for purposes other than that is prevented. It becomes possible to supply and distribute magnetic cards for the intended purpose without anxiety, and it becomes easier and more reliable to manage the usage status of employees for public and private purposes.It also makes it possible for stores, etc. to distribute magnetic cards to customers and pay the order telephone charges. Remarkable effects can be obtained in the operation of magnetic cards, such as the ability to promote orders.

[Brief explanation of the drawing]

The figures show embodiments of the present invention, in which Figure 1 is a plan view of a magnetic card, Figure 2 is a block diagram of a public telephone,
FIG. 3 is a flowchart showing the control status of dial transmission by the control section. DESCRIPTION OF SYMBOLS 1...Magnetic card, 7...Charge information, 8...Type information, 10...Control section, 13...Reading head, 14...Data reading section, 15...Data accumulation section, 16...Telephone circuit, 17...Push button dial, N ₁ ~Nn…Specific phone number.

Claims (1)

[Claims] 1. A magnetic card that records a specific telephone number and prohibited information that makes it impossible to change the specific telephone number;
A magnetic card dial system comprising: a public telephone that only allows dialing from the specific telephone number in accordance with the prohibition information when the magnetic card is inserted.