JPH0629920A - Radio telephone set - Google Patents

Abstract

PURPOSE:To prevent illegal use of a portable telephone set in an excellent way. CONSTITUTION:The radio telephone set formed to be a terminal station making radio communication with a base station is provided with an input section 32 reading data from a prescribed medium 31 to be loaded, check means 37, 38, 39 checking a prescribed circuit in the radio telephone set, comparator means 34, 35, 36 comparing the value obtained through the check by the check means 37, 38, 39 with a value obtained from the medium 31 loaded to the input section 32 and an operating setting means 20 making the use of radio communication available when the coincidence is detected by the comparator means 34, 35, 36.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless telephone device such as a mobile telephone or a mobile telephone which communicates by a wireless telephone line.

[0002]

2. Description of the Related Art Conventionally, various types of wireless telephone systems using mobile phones have been developed and put into practical use. In this communication system, a small portable communication device or the like performs wireless communication with a base station via a wireless telephone line, and relays the base station to talk with another telephone.

By using the mobile phone of this mobile phone system, as long as the communication with the base station is possible (that is, within the service area), the telephone call can be made anywhere. The range of use of the telephone is expanded.

When using this mobile phone system, it is necessary to register the mobile phone possessed in advance as a terminal station on the base station side, and the base station side communicates only with the registered mobile phone. Is done.

[0005]

By the way, a portable telephone using such a radio telephone system can be freely carried and thus may be stolen, and it is necessary to prevent unauthorized use of the stolen telephone. is there. However, the conventional mobile phone has not been dealt with in the case of being stolen or being modified illegally, and it has been impossible to prevent a call due to unauthorized use of the stolen phone or the like.

In view of the above points, the present invention has an object to prevent unauthorized use of a mobile phone.

[0007]

SUMMARY OF THE INVENTION The present invention is, for example, as shown in FIG. 1, in a wireless telephone apparatus configured as a terminal station that communicates with a base station by wireless communication. Input unit 3 for reading data from medium 31
2, inspection means 37, 38, 39 for checking a predetermined circuit in the wireless telephone device, and the inspection means 37, 38, 3
Comparison means 34, 3 for comparing the value obtained by the check in 9 with the value obtained from the medium 31 mounted in the input section 32.
5, 36 and use setting means 20 for enabling the use of wireless communication when a match is detected by the comparing means 34, 35, 36.

In this case, the comparison means 34, 35, 3
When 6 detects a match, the use setting means 20 enables the wireless communication for a predetermined time.

Further, in this case, the comparing means 34, 35, 3
When 6 detects a match, the use setting means 20 enables use of wireless communication for a predetermined number of calls.

In this case, the comparison means 34, 35, 3
When 6 detects a match, the use setting means 20 rewrites the password to enable the use of wireless communication.

Further, according to the present invention, for example, as shown in FIG.
A wireless telephone device, which is configured as a terminal station that performs wireless communication with a base station, includes a clock circuit 24, and sets time counted by the clock circuit 24 based on time information transmitted from the base station. It was done like this.

[0012]

According to the present invention, the use restriction of the wireless communication is released based on the check result of the circuit in the wireless telephone device. Therefore, if the check result does not match the expected value, the use of the wireless communication is not permitted. Regulated. Therefore, in the case of a wireless telephone device that is not correctly registered, it is possible that the check result does not match the expected value, and unauthorized use of the wireless telephone device that is not correctly registered is prevented.

Further, according to the present invention, since the time setting of the clock circuit is performed by the time information transmitted from the base station, the time set in each radio telephone device is the same as the time of the clock circuit held by the base station side. Therefore, it becomes possible to accurately control the wireless telephone device using the time information.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

In this example, the wireless telephone device is configured as a terminal station that communicates with the base station by wireless communication. The wireless telephone device of this example is a portable telephone device having a small size. It is said that

In FIG. 1, reference numeral 10 denotes the main body of the portable telephone device, which supplies the signal received by the antenna 11 to the transmission / reception processing circuit 12 to perform a receiving process for demodulating a predetermined communication channel. The processed reception data is supplied to the modem 13 to decode the data determined by the transmission method, and the data decoded by the modem 13 is supplied to the audio processing circuit 14 to demodulate the audio signal to be obtained. The audio signal is supplied to the speaker 16 via the input / output circuit 15, and the audio is output from the speaker 16. Also, the audio signal picked up by the microphone 17 is input / output circuit 1
5, the audio data is supplied to the audio processing circuit 14 as predetermined audio data, and this audio data is supplied to the modem 13 to be encoded into the transmission data determined by the transmission method, and the encoded transmission data is transmitted / received. The signal is supplied to the circuit 12, modulated into a predetermined communication channel, and transmitted from the antenna 11.

In this case, these transmissions and receptions are performed under the control of a central control unit (CPU) 20 composed of a microcomputer. The central controller 20 has a memory 21
The operation key 22 and the display unit 23 are connected to each other. The memory 21 stores programs necessary for the operation of the mobile phone and parameters according to the contract contents of the mobile phone. Further, the operation information of the operation keys 22 is supplied to the central control unit 20, and operations such as transmission can be performed with the operation keys 22. Further, the display unit 23 displays the telephone number being called, the current time, and the like.

Reference numeral 18 denotes a call processing circuit. The call processing circuit 18 creates an outgoing signal (tone signal or the like) under the control of the central control unit 20, and the created outgoing signal is the modem 13
Supply to the side. Then, the transmission signal which has been subjected to the transmission processing by the transmission / reception processing circuit 12 is transmitted to the base station, and the transmission to the corresponding telephone number is performed.

Reference numeral 24 indicates a clock circuit, and this clock circuit 24 is a circuit for counting the time, which is the central control unit 2.
With the control of 0, the current time counted by the clock circuit 24 is displayed on the display unit 23. in this case,
The time set by the clock circuit 24 is set based on the time data included in the control data wirelessly transmitted from the base station side, and the date is also set.

The process of setting the time will now be described. In the wireless telephone system of this example, the control data transmitted from the base station side through the control channel includes time data of 5 bytes. The byte time data is configured as shown in FIG. That is, the first 5 bits are the data of the zone that shows the time difference from standard time,
The next 3 bits are ancillary data, and the remaining 4 bytes are data indicating the current time. Here, the 4-byte data indicating the current time is a specific time point (for example, 1990).
It is assumed that “0” is set to “00:00” on January 1, year 1), and the value is incremented by 1 each time 1 second has passed from this specific point. By doing so, it can be used until all values of 4 bytes become "1", and in this example, it can be used for 1000 years or more.

When each portable telephone device 10 receives the control data including this time data, the time is set by the processing of the flowchart shown in FIG. That is, when the power of the mobile phone device 10 is turned on (step 1
01), the internal processing value is initialized (step 102), and the control data reception channel is set (step 103). Then, the reception level on the set channel is measured (step 104), it is determined whether the measured level is equal to or higher than the threshold level (step 105), and when the level is equal to or higher than the threshold level, this channel is stored (step). 106). Then, after this storage, or when it is determined in step 105 that the level is below the threshold level, it is determined whether or not all control channels prepared by the system have been measured (step 107), and measurement is performed. If there is a control channel that does not exist, the processing from step 102 to step 106 is executed for the remaining control channels.

After measuring all control channels, it is judged whether or not there is a control channel stored in step 106 (step 108), and if there is a stored control channel (that is, a threshold level or higher). If there is a control channel of the reception level), a reception table is created from the data of the control channel of the reception level higher than the threshold level (step 10).
9). The created reception table is stored in the memory 21. If there is no control channel with a reception level equal to or higher than the threshold level, it is determined that it is outside the service area in which communication with the base station is possible (step 110).

After the reception table is created,
By referring to this reception table, the control channel having the best reception state is set (step 111), and it is judged whether or not the consistency can be obtained on this channel (step 11).
2) If the consistency is obtained, after detecting the level (step 113), it is judged whether or not the data transmitted on the control channel can be received (step 114). The current time data included in is detected and the detected current time is set in the clock circuit 24 (step 115).

Then, after setting the time, it is judged whether or not the standby condition is satisfied (step 116).
If it is satisfied, it is determined whether or not the control channel is in the transitional state (step 117), and when the transition is in the transitional state, the corresponding processing is performed (step 11).
8). Then, after that, standby is performed (step 11).
9).

Further, if the consistency is not obtained in step 112, the correct reception is not possible in step 114, and if the standby condition is not satisfied in step 116, another control channel is set in the reception table. (Step 120), and if there is another control channel, the same processing is performed on the other control channel. If there is no other control channel data, it is determined that the service area is outside the service area in which communication with the base station is possible (step 110).

In the process shown in the flowchart of FIG. 3, the processes other than the time setting are processes on the terminal side during communication in a normal radio telephone system.

In this way, the time set in the clock circuit 24 in each mobile telephone device 10 is set based on the data transmitted from the base station side, so that all telephones used in this radio telephone system are set. The time set in the device is
It is the same as the time counted by the main clock on the base station side. Moreover, as shown in the flowchart of FIG.
Since the control data is always received at the start of communication to correct the time, the error in counting time is extremely small.

In this example, the contract renewal device 30 is connected to the portable telephone device main body 10 configured as described above, and the contract renewal device 30 can renew the contract as a telephone. . That is, the contract renewal device 30 includes the reading unit 32 of the IC card 31, and the IC card reading unit 32 reads the data stored in the IC card 31 and supplies the data to the expected value detection circuit 33. The expected value detection circuit 33 detects the expected value data required for contract renewal in the data stored in the IC card 31. As the expected value data, a value expected in the inspection of the communication hardware of the mobile phone device body 10, a value expected in the inspection of the communication control program stored in the mobile phone device body 10, Telephone device body 1
There is a value expected from the inspection of the parameter set to 0. Then, the data of each expected value is compared with the corresponding comparator 3.
Supply to 4, 35, 36.

The contract renewal device 30 is also connected to the central control device 20 of the mobile phone device body 10. Then, when this connection is made, the data necessary for inspecting the communication hardware in the mobile phone device body 10, the data required for inspecting the communication control program, and the contract contents are set. The data necessary for the parameter inspection are sent from the central controller 20 to the contract renewal device 3 respectively.
It is supplied to the hardware inspection circuit 37 in 0, the program inspection circuit 38, and the parameter inspection circuit 39.

Then, the respective inspection circuits 37, 38,
At 39, a check is performed to check the supplied data by a predetermined calculation, and the values obtained by the calculation are supplied to the comparators 34, 35, 36, respectively. This each comparator 3
At 4, 35 and 36, the expected value read from the IC card 31 is compared with the value of the inspection result, and the comparison result is supplied to the contract renewal control circuit 40. In the contract renewal control circuit 40, when all the comparators 34, 35, 36 detect a match, the contract renewal control circuit 40 transmits control data for permitting contract renewal to the central control unit 20 of the mobile phone main body 10.

Central control unit 20 of mobile phone unit 10
When the control data for permitting the contract renewal is supplied, the side renews the contract based on the control data. At this time, in this example, the contract renewal period is set by the control data transmitted from the contract renewal control circuit 40. That is, the IC card 31 used for the contract renewal at this time stores data regarding the contract renewal permission period, and the contract renewal permission period data read by the IC card reading unit 32 is used as the contract renewal control circuit. 40 and the contract is renewed until the corresponding date.

For example, if data for designating a specific date about one year later is obtained from the IC card 31 as data of the contract renewal permission period, the data of this specific date is transmitted to the central control unit 20 side, The memory 21 is made to store the permission up to this specific date. When the central control unit 20 detects that the date and time counted by the clock circuit 24 of the mobile phone unit 10 has passed this specific date, the communication by the mobile phone unit 10 is restricted. However, when the contract renewal work is performed again before the specific date, the contract renewal is performed until the date indicated by the IC card 31 used at this time.

In this way, the contract renewal process of the mobile phone device 10 is performed using the IC card 31,
For example, when the contract period is extended for about one year by one contract renewal process, each contractor (user of the mobile phone device) is sent from the center side that controls the communication of the mobile phone device 10.
Immediately before the contract period expires, mail the IC card that stores the data for extending the contract period for one year,
The contract renewal process using this IC card is performed. Therefore, unless the contract renewal processing using this IC card is performed, the use of the mobile phone device 10 is restricted, and if the center side manages the IC card to be sent only to those who have correctly contracted, Unauthorized use of the mobile phone device is prevented.

The contract renewal device 30 may be distributed at the time when the contract for the subscription to the wireless telephone line of the portable telephone device 10 is made, or may be attached as an accessory when the portable telephone device body is sold. . If it can be built in the mobile phone device body 10, it may be integrated.

In this case, in this example, the time setting of the clock circuit 24 provided in each mobile telephone device 10 is performed based on the control data transmitted from the base station side.
The time information held by each mobile phone device 10 becomes extremely accurate, and the contract period can be accurately controlled based on the count time of the clock circuit 24.

In the above-mentioned embodiment, the contract period is limited by time, but the number of calls may be limited. That is, if the contract period is extended so as to allow up to 100 calls, for example, each time the contract is renewed using the IC card 31, the cumulative number of outgoing calls and incoming calls exceeds 100 times. At that point, unless a new contract period extension process is performed, the call will be restricted. When the number of calls is regulated in this way, the mobile phone device 10 does not need to include the clock circuit 24.

The contract period may be limited by both time and the number of calls. That is, both the contract expiration date and the number of calls may be set at the time of contract renewal, and even before the contract expiration date, the call may be restricted when the number of calls exceeds the number determined by the contract. .

Further, in the above-described embodiment, all of the inspection of the hardware of the portable telephone device 10, the inspection of the communication control program, and the inspection of the parameters set according to the contract contents are performed. Any of the inspections may be omitted. Further, when the contract renewal is permitted as a result of the inspection, the communication password stored in the memory 21 of the mobile phone device 10 may be rewritten. In this case, for example, it is possible to prevent unauthorized use of a telephone that is not renewed by restricting the communication so that communication cannot be performed unless the password transmitted from the mobile phone 10 side is detected by the base station. .

Further, in the above-mentioned embodiment, the contract is renewed by using the IC card, but another storage medium (recording medium) may be used.

In the above-mentioned embodiment, no description has been made on the communication system performed by the mobile phone, but mobile phones of various communication systems applied in mobile communication can be applied. Further, in the above-described embodiment, the mobile phone has been described, but it is needless to say that it can be applied to other phones such as an in-vehicle phone as long as the phone uses wireless communication.

[0041]

According to the present invention, the use restriction of wireless communication is released based on the check result of the circuit in the wireless telephone device. Therefore, if the check result does not match the expected value, the wireless communication Unauthorized use of wireless telephone devices that are regulated and not properly registered is prevented.

In this case, since the use restriction of the wireless communication is released for a predetermined time, the wireless telephone device cannot be used after the predetermined time elapses, and the unauthorized use is properly prevented.

Further, since the use restriction of the wireless communication is released only for the predetermined number of calls, the wireless telephone device cannot be used after the predetermined number of calls and the unauthorized use is effectively prevented. .

Further, according to the present invention, since the time setting of the clock circuit is performed by the time information transmitted from the base station, the time set in each radio telephone device is the same as the time of the clock circuit held by the base station side. As a result, it becomes possible to accurately control the wireless telephone device using the time information, and for example, it is possible to accurately regulate the call by time.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

FIG. 2 is a configuration diagram showing a configuration of time information according to an embodiment.

FIG. 3 is a flow chart for explaining one embodiment.

[Explanation of symbols]

 10 Mobile phone device 20 Central control device 24 Clock circuit 30 Contract renewal device 31 IC card 32 IC card reader 33 Expected value detection circuit 34, 35, 36 Comparator 37 Hardware inspection circuit 38 Program inspection circuit 39 Parameter inspection circuit 40 Contract Update control circuit

Claims (5)

[Claims] 1. A radiotelephone device configured as a terminal station for performing wireless communication with a base station, comprising: an input unit for reading data from a predetermined medium mounted; and a predetermined unit in the radiotelephone device. Inspection means for checking the circuit, comparison means for comparing the value obtained by the check by the inspection means with the value obtained from the medium mounted in the input section, and when the comparison means detects a match, A wireless telephone device provided with use setting means for enabling the use of the wireless communication. 2. The radiotelephone apparatus according to claim 1, wherein the use setting means enables use of the radio communication for a predetermined time when the comparing means detects a match. 3. The radiotelephone device according to claim 1, wherein when the comparison means detects a match, the use setting means enables the use of the radio communication for a predetermined number of calls. 4. The radiotelephone device according to claim 1, wherein when the comparing means detects a match, the use setting means rewrites the password to enable the use of the wireless communication. 5. A radiotelephone device configured as a terminal station for performing radio communication with a base station, comprising: a clock circuit, wherein the clock circuit counts according to time information transmitted from the base station. A wireless telephone device in which the time to be set is set.