JP3030561B2 - Mobile phone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field of the Present Invention> The present invention relates to a wireless mobile phone.

<Prior Art and Problems to be Solved> In order to use a mobile phone, it is necessary to make a contract with a telephone company in advance, which is very inconvenient in case of emergency or temporary use.

In such a case, it is conceivable to use a mobile phone lender.However, when borrowing a mobile phone from a lender, pay the deposit of the borrowed mobile phone and reduce the current call rate of the mobile phone from the provider. It is necessary to ask the telephone company to contact the telephone company and ask the telephone company for the call fee to return, and pay the telephone fee according to the difference, which is inconvenient for both the lender and the user, In addition, there is a possibility that call charges may be improperly inflated by the service provider.

On the other hand, a conventional mobile phone transmits a mobile device identification number (ID code) unique to the mobile phone to indicate which area the user is in, and prepares for the incoming call as location registration information as location registration information. .

However, the current cellular phone system requires a relatively large transmission power (several watts) because the area of each area is considerably large. In addition, the exchange always monitors in which area the cellular phone is located and determines the location. It is necessary to register and perform a charging registration process for a mobile device identification number (ID code) registered in advance, so that the exchange process is very complicated and the system becomes enormous.

To alleviate these problems, a new mobile phone system capable of making calls with small output by dedicating mobile phones to outgoing calls, omitting location registration processing at the exchange side, increasing the number of base stations and reducing the area of area Have been proposed in recent years.

However, even with this new system, the complexity of the billing registration process corresponding to the mobile unit identification number (ID code) on the exchange side has not been eliminated, and a system that reduces the burden on the exchange side due to this fee processing has been realized. Is an important issue.

An object of the present invention is to provide a mobile phone which solves this problem.

<Means for Solving the Problems> In order to solve the above problems, a mobile phone according to the present invention includes a thin, portable housing, a battery housed in the housing, and an off state. A switch that is turned on by a predetermined operation; a wireless transmission / reception unit that is provided in the housing, receives power supply from the battery only when the switch is on, and performs communication with a base station by a wireless signal; A dial switch provided on the operation surface of the body for inputting a telephone number of a call partner, a handset for communication provided on the operation surface of the housing, and valuable information purchased by prepayment are recorded. A card accommodating portion for receiving the prepaid card into the housing through a card insertion slot provided on a side surface of the housing, and housing the prepaid card in parallel with an operation surface of the housing; Value reading means for reading valuable information from a prepaid card inserted in the card, and when the value of the valuable information read by the value information reading means is equal to or more than a predetermined value, the telephone number input by the dial switch is transmitted via the wireless transmission / reception unit. Calling means for transmitting a call signal from the base station to the base station, and receiving a signal indicating the response of the caller of the telephone number from the base station, enabling a call signal from the handset to be transmitted / received via the wireless transmitting / receiving unit. Control means; and billing signal generating means for outputting a billing signal for calculating a call fee based on a telephone number area of a call partner input by operating the dial switch and an area of a base station with which the wireless transmitting / receiving section communicates. Each time a billing signal is output from the billing signal generating means, valuable information recorded on the prepaid card And a card processing means for processing to reduce.

<Operation> Since the mobile phone of the present invention is configured as described above,
Even if you do not have a mobile phone, if you have a prepaid card, you can use another person's mobile phone body to make a call, the convenience of the equipment will be very high, and the line side of the mobile phone system will be This eliminates the need for the location registration process and the fee collection process, thereby significantly reducing the load on the line-side system.

<Embodiment of the Present Invention> (FIGS. 1 and 2) Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an outgoing-only mobile phone according to an embodiment, and FIG. 2 is a perspective view showing an appearance of the embodiment.

As shown in FIG. 2, the mobile phone 10 has an upper housing 11 and a lower housing which are formed thin and are foldably connected.
It consists of 12 and.

An indicator 13 and a protruding hook switch 14 are provided on a front surface 11a of the upper housing 11, and flat dial switches 15, 15,... Are provided on a front surface 12a of the lower housing 12.
.., 15 are formed.

The upper housing 11 and the lower housing 12 each include a built-in speaker and a microphone (both not shown) for forming a transmission / reception device. A call is made with the front portion 12a of the lower housing 12 approaching the mouth.

Note that an extendable antenna 16 is provided on the upper surface 11b of the upper housing 11. In addition, when not in use, the mobile phone 10 has a locking mechanism for folding the upper housing 11 and the lower housing 12 so that the front portions 11a and 12a thereof are overlapped with each other to maintain the hook switch 14 in an on-hook state. It has.

That is, as shown in FIG.
Locking piece 17 attached to project slightly from the front to the front
The distal end 17a of the lower housing 12 is locked in a locking groove 18 provided in the lower surface 12b of the lower housing 12, whereby the locked state is maintained, and the hook switch 14 is pressed against the front surface 12a of the lower housing 12. It goes on-hook.

The rear end 17b of the locking piece 17 is
Since this is urged counterclockwise by 9 (in FIG. 3), this locked state is maintained unless the rear end 17b is pushed from above.

A card insertion slot 20 for receiving a telephone card (hereinafter simply referred to as a card) is provided at the rear of the upper surface of the upper housing 11, and a card inserted from the card insertion slot 20 is provided in a card processing unit provided inside. The frequency information is read by 40, and the frequency information subtracted by the used frequency is written and discharged.

 FIG. 1 shows a circuit configuration of the mobile phone 10.

In FIG. 1, reference numeral 30 denotes a radio transmission / reception unit which receives a signal from the base station received by the antenna 16 and transmits a radio signal to the base station.

31 is a duplexer for sharing the antenna 16 for transmission and reception,
Reference numeral 32 denotes a transmission circuit that converts a dial signal or a call signal into a radio signal and outputs the signal to the antenna 16, and reference numeral 33 denotes a reception circuit that demodulates a radio signal (including a control signal and a call signal) from the base station.

Reference numeral 34 denotes a frequency control circuit that automatically controls the transmission / reception frequency of the mobile phone 10 based on the control signal received by the reception circuit 33.

Reference numeral 35 denotes a dial signal generator for outputting a dial signal corresponding to the dial switches 15, 15,..., 15 to the transmitting circuit 32, and reference numeral 36 denotes a handset (consisting of the above-described speaker and microphone) for a call.

37 is a switch for stopping the supply of power from the battery 38 to the wireless transmitting / receiving unit 30 and the dial signal generator 35, and 39 is off-hook detecting means for detecting on / off of the hook switch 14 between the battery 38 and the switch 37. is there.

The card processing unit 40 includes an insertion sensor 41 for detecting insertion of the card, a card transport mechanism 42 for loading and unloading the card,
A punching machine groove 43 for punching a punched hole at a predetermined position of the card according to the remaining frequency, a read head 44 and a write head 45 are provided, and a received signal from the receiving circuit 33 and an on-hook detection signal input to the control means 46 are provided. , The card transport control and the reading and writing control of the frequency information are performed.

In addition, 50 is the display number of the other party's telephone number and the remaining frequency.
This is a display means for displaying the information.

Next, the operation of the mobile phone will be described with reference to the flowchart of FIG.

When the mobile phone 10 that has been folded in advance is opened by pressing the rear end portion 17b of the locking piece 17, the hook switch 14 is turned on.

This off-hook is detected and the card is
When the card is accepted, the card is detected by the insertion sensor 41 and the card is pulled in (steps 1 to 3).

The frequency information recorded on the card is read by the read head 44. When the frequency A is "1" or more, the switch 37
Is turned on to be in a transmission preparation state (steps 4 to 6).

When the user operates the dial switch 15, 15,..., 15 according to the dial number of the other party, the dial signal is converted into a wireless signal by the transmission circuit 32,
Is sent from the phone (in this case, the telephone number of the
Will be displayed on your device).

The base station in this area that has received the radio wave sends the received dial number information to the exchange to call the other party.

When the other party answers and the call is started, the frequency A is decremented by "1" (steps 7 and 8).

If the frequency A thus subtracted is not "0", the completion of the call and the presence or absence of a billing signal are determined. If a billing signal is input while the call is continued, the process returns to step 8 (steps 9-1).
1).

When the remaining frequency A becomes "0" during this call, an alarm signal is output, and when the next billing signal is input, the switch 37 is turned off and the line is disconnected (steps 12 to 15).

When the call is completed (the other party or oneself goes on-hook), the switch 37 is turned off.

When the switch 37 is turned off, the remaining frequency A is written on the card, and the written frequency is read (step 1).
6, 17).

Here, the coincidence between the written frequency A and the read frequency B is determined, and if the writing is normally performed, a punching process is performed and the card is carried out (steps 18 to 20).

If the writing is abnormal, the process returns to step 16, and the writing process is performed again.

Therefore, when this mobile phone 10 is used, it is not necessary for the exchange to perform location information registration and ID code charge processing, and it is only necessary to perform the same processing as that of a public telephone line.

Further, in the above-described embodiment, the number of usages is detected based on the billing signal from the exchange. However, if means for generating a billing signal in accordance with the other party and its own area is provided inside, Can be applied to a line system that does not transmit a billing signal.

Further, in the above-described embodiment, a mobile phone that can be used as a well-known telephone card has been described, but an IC card or the like may be used as long as the card stores valuable information.

<Effects of the Present Invention> As described above, the mobile phone of the present invention is exclusively used for transmission that supplies power to at least the wireless transmission / reception unit via the switch that is turned off when a predetermined operation is performed in the off state. Because it is a mobile phone, it consumes less power,
It can be used for a long time with a small battery. Even if you do not have a mobile phone, if you have a prepaid card, you can use another person's mobile phone body to make a call, which greatly increases the convenience of the device. In addition, since it is configured so that a call can be made using a prepaid card in which valuable information is stored, both location registration processing and processing for toll collection at the exchange are unnecessary,
The burden on the exchange can be significantly reduced.

In a mobile phone using an IC card, a mechanism for transporting the card is not required, the capacity of the battery can be further reduced, and the housing can be made thinner and smaller.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a perspective view showing an appearance of the embodiment, and FIG. 3 is a side sectional view showing a locking mechanism portion of the embodiment. FIG. 4 is a flowchart showing a processing procedure of a main part of one embodiment. 10 mobile phone, 14 hook switch, 15 dial switch, 16 antenna, 30 wireless transmitter / receiver,
35 ... dial signal generator, 38 ... handset, 40 ...
Card processing unit.

Claims (2)

(57) [Claims] 1. A thin, portable housing, a battery housed in the housing, a switch that is normally in an off state and is turned on by a predetermined operation, and a switch provided in the housing, A wireless transmission / reception unit that receives power supply from the battery only when the battery is in an on state and performs communication with a base station by a wireless signal; and a dial switch provided on an operation surface of the housing for inputting a telephone number of a communication partner. A telephone handset provided on the operation surface of the housing, and a repaid card on which valuable information purchased by prepayment is recorded, from a card insertion slot provided on the side surface of the housing. A card accommodating portion for receiving in the housing and accommodating in parallel with the operation surface of the housing, valuable reading means for reading valuable information from a prepaid card inserted in the card accommodating portion, Calling means for transmitting, when the valuable information read by the valuable information reading means is equal to or more than a predetermined value, a telephone number input by the dial switch to a base station via the wireless transmitting / receiving section, When receiving a signal indicating the response of the call partner of the telephone number, call control means for enabling transmission / reception of a call signal by the handset via the wireless transmitting / receiving unit; and a call control unit input by operating the dial switch. Billing signal generating means for outputting a billing signal for calculating a telephone charge based on a telephone number area and an area of a base station with which the wireless transmitting and receiving unit communicates, and each time a billing signal is output from the billing signal generating means ,
A calling-only mobile phone comprising: card processing means for performing processing for reducing valuable information recorded on the prepaid card. 2. The mobile phone according to claim 1, wherein said prepaid card is an IC card.