JP3004037B2 - Selective call receiver, mobile radio communication device, and message display control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention] (Industrial application field) The present invention controls a selective call receiver having a message display function, a mobile radio communication device, and whether or not to display a message. On how to do.

(Prior Art) Conventionally, there is a selective call receiver having a message display function. FIG. 6 is a circuit block diagram showing the configuration.

In FIG. 1, a selective call signal sent from a base station (not shown) is received by a radio circuit 2 via an antenna 1, demodulated by a demodulation circuit 3, and introduced into a control circuit 4.
In the control circuit 4, the individual number code (ID code) included in the reception selective calling signal is compared with the ID code of the own device stored in the individual number code memory (ID-ROM) 5 in advance. . If the codes match, it is determined that a call to the own device has occurred, and a call notification signal is supplied from the control circuit 4 to the drive circuit 6, whereby a sound is generated from the speaker 7 and the possession is carried out. The caller is notified that the call has occurred.

If a message code is included in the reception selective calling signal, the control circuit 4 first performs error correction and decoding of the message code. Then, the decoded message code is supplied to the display drive circuit 8, and the display drive circuit 8 displays a message corresponding to the message code on the display 9. The displayed message is deleted when a display stop operation is performed or a certain display time has elapsed. The received message code is transferred from the control circuit 4 to a message memory (M-RAM) 10 and stored therein. The message code stored in the message memory 10 is read out from the message memory 10 and displayed again on the display 9 when the display switch 11 is operated by the holder after the display of the message is completed.

(Problems to be Solved by the Invention) However, such a conventional selective call receiver has the following problems to be improved. That is, the message code is unconditionally displayed on the display 9 when a call occurs and when the display switch 11 is operated. For this reason, for example, when the user leaves the selective call receiver unattended, if a third party intentionally attempts to view the received message, the message can be easily viewed, and as a result, the message cannot be kept confidential. There was a point.

Therefore, the present invention focuses on the above circumstances, and makes it possible to prevent a received message from being easily viewed by a third party by remote operation through a (selection) calling signal, thereby enabling all message information including message information received in the past to be displayed. It is an object of the present invention to provide a selective call receiver and a mobile wireless communication device that can increase confidentiality.

Yet another object is to allow the message to be displayed or not to be set remotely via a (selection) call signal, so that anytime and anywhere, if necessary, all messages, including previously received messages, are displayed. An object of the present invention is to provide a message display control method capable of easily setting whether or not to display a message.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention receives a selective call signal transmitted from a base station, and the selective call signal is directed to its own device. In a selective call receiver provided with message display means for storing and displaying the message information when the message information is included, it is determined whether or not predetermined secret setting information is inserted in the selective call signal. First determining means, second determining means for determining whether or not predetermined secret release information is inserted in the selective calling signal, and secret control means. When the secret control means determines that the secret setting information has been inserted by the first determining means, the secret mode is set and thereafter the display of the message information by the message display means is stopped. If the second determining means determines that the secret release information is inserted, the secret mode is released and the display of the message information by the message display means is permitted thereafter. is there.

Another object of the present invention is to provide a secret setting for setting a secret mode to a selective call receiver when making a call request to a desired selective call receiver to a base station. Information or secret release information for releasing the secret mode, and at the base station, when the above-mentioned call request occurs, create and transmit a selective call signal arriving with the above-mentioned secret setting information or secret release information, In the selective calling receiver, the selective calling signal is received, and if the selective calling signal is destined for itself, it is determined whether secret setting information or secret release information is inserted in this signal, If it is determined that secret setting information is inserted, set secret mode The display of the message information is stopped,
When it is determined that the secret release information has been inserted, the secret mode is released and the display of the message information is permitted thereafter.

Further, in order to achieve the above object, the present invention receives a paging signal transmitted from a base station, and stores the message information when the paging signal is addressed to itself and includes message information. A mobile radio communication device provided with a message display means for displaying a predetermined secret setting information in the call signal, and a first judgment means for judging whether or not predetermined secret setting information is inserted in the call signal; A second determining unit for determining whether or not secret release information has been inserted, and a secret control unit are provided. When the secret control means determines that the secret setting information has been inserted by the first determining means, the secret mode is set and thereafter the display of the message information by the message display means is stopped. If the second determining means determines that the secret release information is inserted, the secret mode is released and the display of the message information by the message display means is permitted thereafter. is there.

Another object of the present invention is to set a secret mode for setting a secret mode in a mobile radio communication device when making a call request to a desired mobile radio communication device to a base station. Information or secret release information for releasing the secret mode, and at the base station, when the above-mentioned call request occurs, the above-mentioned secret setting information or secret release information is generated and transmitted as a call signal, and the mobile radio signal is transmitted. The communication device receives the call signal, and if the call signal is addressed to the own device, determines whether secret setting information or secret release information is inserted in the signal, and determines whether the secret setting information is If it is determined that it is inserted, set secret mode and It stops the display, and if the secret release information is determined to be inserted, is obtained so as to permit the display of the subsequent message information to release the secret mode.

(Operation) As a result, according to the present invention, if the secret mode is set in the selective calling receiver or the mobile radio communication device by remote control through the (selecting) calling signal, a message display switch is also provided when a calling occurs. Is operated, all received message information including messages received in the past will not be displayed. For this reason, even if the user is absent or the user is lost, the third party cannot intentionally view the received message information with the selective call receiver or the mobile radio communication device. Thus, the confidentiality of the received message can be kept high.

According to another aspect of the present invention, the setting and canceling of the secret mode for the selective call receiver and the mobile radio communication device can be performed in exactly the same manner as the normal paging procedure. Does not need to be directly operated, for example, it is possible to remotely set and cancel the secret mode for the selective call receiver and the mobile radio communication device left or lost on their own desks from a destination.

(Embodiment) FIG. 1 is a functional block diagram showing a configuration of a selective calling system including a selective calling receiver according to one embodiment of the present invention. 5, the same parts as those in FIG. 5 are denoted by the same reference numerals, and detailed description is omitted.

This system consists of a plurality of telephones TEL and an exchange EX where each of these telephones TEL is connected via a wired line.
And a base station BS connected to the exchange EX, and a plurality of selective call receivers PS.

The selective call receiver PS has a control circuit 40 and an ID-ROM 50. Among them, first, as shown in FIG. 4, a secret setting code and a secret release code are stored in the ID-ROM 50 in addition to the individual number code (ID code) of the own device. The secret setting code includes, for example, a code U1 indicating a secret setting code as shown in FIG. 5A and a four-digit password. The secret release code is composed of, for example, a code U2 indicating a secret release code as shown in FIG. 5 (b) and a four-digit password.

On the other hand, the control circuit 40 includes, for example, a microcomputer as a main control unit, and includes a message display control unit 41, a determination unit 42, and a secret mode control unit 43 as control functions related to message display. I have.

When a call to the own device occurs, the message display control means 41 decodes the message code inserted in the selected call signal and causes the display 9 to display a corresponding message. When the display switch 11 is pressed while waiting for a call, the received message code stored in the message memory 10 is read and decoded, and the corresponding message is displayed on the display 9.

The determining means 42 determines whether or not the secret setting code or the secret decryption code is inserted in the received selective call signal.

The secret mode control means 43, when the secret setting code is detected by the determination means 42, sets the secret mode, thereafter stops the message display control by the message display control means 41, and detects the secret decryption code. If so, the secret mode is decoded and the message display control operation by the message display control means is permitted.

Next, the operation of the system configured as described above will be described.

When the power is turned on, the selective call receiver PS performs an initial process in step 2a by the control circuit 40 as shown in FIG. 2 (a), and then enters a call waiting state. In this initialization process, for example, the control circuit starts the initialization operation itself, establishes synchronization with the selective call signal transmitted from the base station BS, determines its own reception period for battery saving, and the like.

When in the call waiting state, the selective call receiver PS starts the control circuit
According to 40, the operation monitoring of the display switch 11 and the arrival monitoring of the reception period are repeatedly performed in steps 2b and 2c, respectively. Then, when it is time to receive the data,
The radio circuit 2 and the demodulation circuit 3 are set in an operating state by a battery saving circuit (not shown), and a selective call signal coming from the base station BS is received during this period.

In this state, it is assumed that a normal selective call signal addressed to the own device including a message code has arrived. Then, the control circuit 40 of the selective call receiver PS first proceeds to step 2d
Then, the ID code included in the reception selective calling signal is compared with its own ID code stored in the ID-ROM 50, and it is determined in step 2e whether both ID codes match. And receive
When it is confirmed that the ID code matches the ID code of the own device, it is determined that a call to the own device has occurred, and a sound is generated in step 2f. In step 2g, it is determined whether a message is included. If a message code is included, it is further determined in step 2i whether a secret code is included in the message code. If the secret code is not included, the control circuit 40 proceeds to step 2m and determines whether or not the secret mode is being set.

Suppose now that the secret mode has not been set. Then, the control circuit 40 proceeds to step 21 where the received message code is decoded and displayed on the display 9. That is, a normal message display operation is performed. And when the message is displayed, the control circuit
40 moves to step 2n in FIG. 2 (b),
2n stores the received message code in the message memory
Store it in 10. Then, in this state, in steps 2o and 2p, a time T1 (for example,
(10 seconds) has elapsed and the determination whether a stop switch (not shown) has been pressed is repeatedly executed. Then, if the stop switch is pressed during the time T1 has elapsed or during that time, the process proceeds to step 2q at that point, where the generation of the sound is stopped. When the generation of the sound is stopped, the control circuit 40 determines in step 2r and step 2s whether or not the time T2 (for example, 20 seconds) has elapsed since the start of the generation of the sound, and a stop switch. The monitoring of whether or not is pressed is repeated. Then, in this state, time T2
If the stop switch is pressed again during or during this time, the process proceeds to step 2t at that point, where the display of the message is stopped, and the process returns to the call waiting state.

On the other hand, if the display switch 11 is pressed while the secret mode is not set, the following control is performed. That is, the display switch in the call waiting state
When 11 is pressed, the control circuit 40 proceeds from step 2b to step 3a shown in FIG. 3, where it first determines whether or not the secret mode is being set. Then, if it is determined that the secret mode is not set, then it is determined in step 3b whether or not the message code is stored in the message memory 10, and if it is stored, the message is read from the message memory 10 in step 3c. Read the sign. At this time, the message code to be read out with the latest reception timing is selected. When the message code is read out, the control circuit 40 decodes the message code in step 3d and causes the display 9 to display the corresponding message. In this state, the control circuit 40
Monitoring of the re-operation of the display switch 11 by 3e and step 3f
The monitoring of whether a predetermined time T2 has elapsed since the start of the display of the message according to and the monitoring of whether the stop switch has been pressed in step 3g are repeatedly performed. Then, when the display switch 11 is pressed again, the read address is incremented in step 3h, and the process returns to step 3c. Here, the next new message code is read from the message memory 10 and displayed on the display 9 in step 3d. Let it. Similarly, every time the display switch 11 is pressed, the message codes stored in the message memory 10 are read out one by one in the order of the newest reception timing and displayed on the display 9.

Further, when the display time of one message reaches T2 or the stop switch is pressed during that time, the control circuit 40 shifts to step 3i at that point, stops displaying the message, and thereafter waits for a call. Return to

By the way, it is assumed that the user performs a calling operation on his / her own selective calling receiver using the telephone TEL in order to set the secret mode in his / her own selective calling receiver.
Then, base station BS is called by exchange EX in response to this calling operation, and the secret setting code input as a message by telephone TEL is sent to base station BS. In response, the base station BS generates an ID code corresponding to the telephone number of the selective call receiver transferred from the exchange EX, and creates a selective call signal in which the ID code and the secret setting code are inserted. . Then, the selective calling signal is transmitted by the selective calling receiver during a corresponding transmission period.

On the other hand, the selective call receiver PS checks the ID code included in the selective call signal transmitted from the base station BS with its own ID code in step 2d as described above. If they match, the process proceeds to step 2f where the speaker 7
Generates a sound from. Next, in step 2g, it is determined whether or not a message code is included in the selective calling signal. If it is determined that the message code is included, a secret setting code or a secret release code is included in the message code. Is determined in step 2h. As a result of this determination, when it is determined that the secret setting code is included, it is determined in step 2i whether the secret code is a setting code or a release code. Set secret mode. The setting of the secret mode is performed, for example, by setting a flag in a storage unit in the control circuit 40.

Now, when incognito mode is set,
Thereafter, even if a call to the own device occurs and a message code is included in the selective call signal, the control circuit 40 proceeds from step 2m to step 2n in FIG. 2 (b) as it is, and in this step 2n The received message code is stored in the message memory 10. That is, the process proceeds to the next step without displaying the received message.
Therefore, for example, it is impossible for a third party to know the received message even if he tries to know it.

Further, even if a third party presses the display switch 11 to view a past received message stored in the message memory 10 during the setting of the secret mode, the message is not displayed. That is, the control circuit 40
When the operation of the display switch 11 is detected in step 2b, the process proceeds to step 3a in FIG. 3, where it is determined whether or not the secret mode is being set. If the secret mode is being set as in this case, the process returns to the call waiting state without performing any message display operation. Therefore,
In this case as well, it becomes impossible to see the message stored in the message memory 10, and the confidentiality of the received message is maintained.

On the other hand, it is assumed that the user performs a calling operation on his / her own selective calling receiver using telephone TEL in order to cancel the secret mode. Then, the base station BS transmits a selective call signal including the ID code of the selective call receiver and the secret release code. Then, the control circuit 40 of the selective calling receiver PS confirms in step 2h that the selective calling signal contains a secret code, and determines in step 2i whether the secret code is a setting code or a cancel code. Then, if it is confirmed that it is the secret release code, the secret mode set in step 2k is released and the step
At 21, the display operation of the message code included in the currently selected call signal is performed. The secret mode is released by defeating the secret mode flag.

Therefore, when a selective calling signal addressed to the own device including the message code arrives thereafter, the secret mode is released, and the control circuit 40 proceeds from step 2m to step 21.
Then, the received message is displayed.
When the display switch 11 is pressed in the call waiting state, the control circuit 40 shifts from step 3a to step 3c and step 3d via step 3b in FIG. 3, whereby the message is stored in the message memory 10. The message code is read out and displayed on the display 9. Therefore,
Confirmation of a message received in the past can be performed again.

As described above, according to the present embodiment, the secret call mode can be set in the selective call receiver as necessary, so that the selective call signal addressed to the own device including the message code is received, Even when the display switch 11 is operated, no message is displayed. Therefore, for example, it is impossible for a third party to know the received message even if he / she knows it intentionally, thereby increasing the confidentiality of the message.

In addition, since the setting and release of the secret mode are performed via the base station BS using a normal calling procedure, for example, for a selective calling receiver left on a desk,
The user can arbitrarily set the secret mode from whereabouts. Therefore, setting and canceling of the secret mode can be easily performed anytime and anywhere.

Further, by adding a password to each of the secret setting code and the secret releasing code, it is possible to prevent a third party from setting and releasing the secret mode.

The present invention is not limited to the above embodiment.
For example, in the above embodiment, when setting or canceling the secret mode, a selective call signal in which a secret setting code or a secret canceling code is inserted instead of the message code is transmitted, but the secret setting code or the secret code is transmitted to the message code. You may make it transmit, adding a release code.

Also, the secret code password may be selectively used by preparing two or more types of passwords instead of one type. Further, the password of the secret code stored in the ID memory may be arbitrarily changed by a user using a ROM writer or a personal computer as needed.

In the above embodiment, when the secret mode is set, the display of all the message codes stored in the message memory is prohibited. However, a code indicating the importance is added to the message code in advance. Alternatively, it may be configured to prohibit the display of only messages having a predetermined importance or higher according to the sign indicating the importance.

In addition, the configuration of the secret code, the control procedure for setting and canceling the secret mode, the message display control procedure, and the like can be variously modified without departing from the gist of the present invention.

[Effects of the Invention] As described above in detail, the present invention provides a first determination unit for determining whether predetermined secret setting information is inserted in a selective calling signal, A second determining unit for determining whether or not secret release information has been inserted, and a secret control unit are provided. When the secret control means determines that the secret setting information has been inserted by the first determining means, the secret mode is set and thereafter the display of the message information by the message display means is stopped. If the second determining means determines that the secret release information is inserted, the secret mode is released and the display of the message information by the message display means is permitted thereafter. is there.

Thus, according to the present invention, all received messages, including those previously received by remote control via a (selection) call signal, can be prevented from being easily viewed by a third party, thereby allowing the message information to be displayed. A selective call receiver and a mobile wireless communication device that can increase confidentiality can be provided.

Another aspect of the present invention is a secret for setting a secret mode in a selective call receiver or a mobile radio communication device when making a call request to a desired selective call receiver or a mobile radio communication device to a base station. Setting information or secret release information for releasing the secret mode is transmitted, and when the above-mentioned paging request is generated at the base station, a selective call signal having the secret setting information or secret release information arriving is created and transmitted. In the selective calling receiver or the mobile radio communication device, if the selective calling signal is received and the selective calling signal is addressed to itself, is the secret setting information or secret release information inserted in this signal? No, and if it is determined that secret setting information has been inserted, The secret mode is set to stop displaying the message information thereafter, and if it is determined that the secret release information has been inserted, the secret mode is released to allow the display of the message information thereafter. It was done.

Therefore, according to another embodiment of the present invention, whether or not to display a message can be remotely set through a selective calling signal, so that any time and anywhere, including a message received in the past, can be included. It is possible to provide a message display control method capable of easily setting whether or not to display all messages.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a functional configuration of a selective calling system using a selective calling receiver in one embodiment of the present invention;
2 and 3 are flowcharts showing control procedures and control contents of a control circuit of the selective call receiver shown in FIG. 1, and FIG. 4 schematically shows a storage state of secret codes in an ID-ROM. FIG. 5 is a diagram showing a configuration of a secret setting code and a secret release code.
FIG. 6 is a block diagram showing the configuration of a conventional selective call receiver. TEL: Telephone, EX: Switch, BS: Base station, PS ...
Selective call receiver, 1 ... antenna, 2 ... radio circuit, 3
... demodulation circuit, 6 ... drive circuit, 7 ... speaker, 8 ...
... display drive circuit, 9 ... display, 10 ... message memory, 11 ... display switch, 40 ... control circuit, 41 ... message display control means, 42 ... judgment means, 43 ... secret mode control means , 50 ... ID-ROM.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Makoto Murai 3-1-1 Asahigaoka, Hino-shi, Tokyo Toshiba Hino Factory Co., Ltd. (56) References JP-A-2-198230 (JP, A) JP-A-Hei 3-141732 (JP, A) JP-A-61-26337 (JP, A) JP-A-62-239726 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04B 7/24 -7/26 102 H04Q 7/00-7/38

Claims (6)

(57) [Claims] 1. A message display for receiving a selective call signal transmitted from a base station and storing and displaying the message information when the selective call signal is addressed to the terminal itself and includes message information. In the selective call receiver provided with means, first determining means for determining whether predetermined secret setting information is inserted in the selective call signal, and predetermined secret release information is included in the selective call signal. Second determining means for determining whether or not the secret setting information has been inserted; and when the first determining means determines that secret setting information has been inserted, a secret mode is set and thereafter the message display is performed. Stopping the display of the message information by the means and determining that the secret release information has been inserted by the second determining means , Selective calling receiver characterized by comprising a secret control means for authorized to view the message information by subsequent said message display means to release the secret mode. 2. The secret setting information and the secret release information are respectively composed of a code indicating that a secret mode is to be set, a code indicating that a secret mode is to be released, and a password predetermined for each selective call receiver. The selective call receiver according to claim 1, wherein the call is performed. 3. A secret setting information for causing a selective call receiver to set a secret mode or a secret release for releasing a secret mode when making a call request to a desired selective call receiver to a base station. When the paging request is generated at the base station, the base station creates and transmits a selective call signal in which the secret setting information or secret release information is inserted. Receive,
If this selective calling signal is addressed to the own device, it is determined whether secret setting information or secret release information is inserted in this signal, and if it is determined that secret setting information is inserted, Setting the secret mode to stop displaying the message information thereafter, and, when it is determined that the secret release information is inserted, releasing the secret mode and permitting the display of the message information thereafter; A message display control method comprising: 4. A paging signal transmitted from a base station is received,
In a mobile radio communication device provided with a message display means for storing and displaying the message information when the call signal is addressed to the own device and including the message information, predetermined secret setting information is included in the call signal. First determining means for determining whether or not a secret release information is inserted in the call signal; and first determining means for determining whether or not predetermined secret release information is inserted in the calling signal. When it is determined that the secret setting information is inserted by the determining means, the secret mode is set and thereafter the display of the message information by the message displaying means is stopped, and the secret releasing information is determined by the second determining means. Is released, the secret mode is released and the message display Mobile radio communication device, characterized by comprising a secret control means for permission to view the message information. 5. The secret setting information and the secret release information are respectively composed of a code indicating that a secret mode is to be set, a code indicating that the secret mode is to be released, and a password predetermined for each mobile radio communication device. The mobile radio communication device according to claim 4, wherein the mobile radio communication device is used. 6. A secret setting information for allowing a mobile station to set a secret mode or a secret release for canceling a secret mode when a call request for a desired mobile station is made to a base station. When the base station issues the call request, the base station creates and transmits a call signal in which the secret setting information or secret release information is inserted, and the mobile radio communication device receives the call signal. If this call signal is addressed to the own device, it is determined whether secret setting information or secret release information is inserted in this signal, and if it is determined that secret setting information is inserted, Set the secret mode to stop displaying message information and If the release information is determined to have been inserted, a message display control method being characterized in that to release the secret mode so as to permit the display of the subsequent message information.