JPH09215027A - Selective call receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it difficult or disabled to read or decode a message that is secret. SOLUTION: When receiving or reading the message while storing plural pieces of quiz information in a quiz memory area 32a, one piece of quiz information is selected at random or sequentially out of plural pieces of quiz information stored in the quiz memory area 32a, a quiz based on that quiz information is displayed on a display part 2, it is discriminated whether answer data key- inputted are correct or not based on that quiz information and when it is the correct answer, the desired message is displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a selective call receiver capable of displaying a message serving as confidential information by using path information.

[0002]

2. Description of the Related Art Conventionally, for example, some selective call receivers are provided with a secret function in order to prevent others from seeing a received message.

The secret function is that when the user of the selective call receiver inputs and sets a password in advance in the receiver and the user inputs the preset password when he or she wants to read the received message, This is a function that enables the readout and display of the received message when the secret mode is released.

[0004]

However, in the selective call receiver according to the above-mentioned conventional example, the password is fixed until changed by the user, so that the password is known to the third party, or If it is decrypted, there is a problem that the message can be easily read out by using the password even though it is the secret information.

In order to solve the above-mentioned problems of the conventional example, the present invention makes it possible to make it difficult to decipher the path information and to make the message reading difficult or impossible for the message to be confidential information. The purpose is to provide a receiver.

[0006]

According to a first aspect of the present invention, there is provided a selective call receiver for receiving message information to which path information associated with a selective call and display information corresponding to the path information are added. And display means for displaying the message information and display information received by the receiving means, path information input means for inputting path information, and displaying the display information received by the receiving means on the display means. Display control means for permitting the display means to display the message information received by the reception means when the path information input by the path information input means and the path information received by the reception means match. It is characterized by having and.

According to the above configuration, the receiving means receives the message information to which the path information associated with the selective call and the display information corresponding to this path information are added, and the displaying means is received by the receiving means. The message information and the display information are displayed, the path information input unit inputs the path information, and the display control unit causes the display unit to display the display information received by the receiving unit and the input by the path information input unit. When the path information and the path information received by the receiving unit match, the display of the message information received by the receiving unit is permitted.

The path information is answer data, and the display information is quiz data.

Therefore, when the path information input while displaying the received quiz data matches the path information received with the quiz data, the message information received with the quiz data is displayed. Since I did so, regarding messages that are confidential information,
It is possible to make it difficult to decipher the path information and make it difficult or impossible to read the message.

According to the second aspect of the present invention, there is provided a selective call receiver having setting means for setting a plurality of sets of path information and display information corresponding to the path information, and setting means for setting the calling information. Receiving means for receiving the message information added with the designated information for designating the path information and the display information, and the setting designated by the message information received by the receiving means and the designated information added to the message information Display means for displaying the display information set in the means, path information input means for inputting the path information, and display information set in the setting means designated by the designation information received by the receiving means. The path information input by the path information input means and the designation information received by the receiving means are displayed while being displayed on the display means. And a display control unit that allows the display unit to display the message information received by the receiving unit when the designated path information set in the setting unit matches. .

According to the above construction, the setting means sets a plurality of sets of path information and display information corresponding to the path information, and the receiving means sets the path information set in the setting means associated with the calling of itself. And the message information to which the designation information designating the display information is added is received, and the display means is set to the setting information designated by the message information received by the receiving means and the designation information added to this message information. The display information is displayed, the path information input means inputs the path information, and the display control means displays the display information set in the setting means designated by the designation information received by the receiving means on the display means. It is displayed and set in the setting means designated by the path information input by the path information input means and the designation information received by the receiving means. In the case where the path information match, allowing display by the display means of the message information received by the receiving means. The path information is answer data, the display information is quiz data, and the designation information is a quiz identification code.

Therefore, when the data is received, if the quiz identification code is present, the quiz data is displayed and the path information is input. Therefore, if the quiz data matches the path information received, the quiz is entered. Since the message information received together with the data is displayed, it is possible to make it difficult to decipher the path information and make it difficult or impossible to read the message, which is confidential information.

[0013]

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. (First Embodiment) FIG. 1 is a front view showing the external shape of a selective call receiver according to the present invention. In FIG. 1, reference numeral 1 denotes a pager (selective call receiver) used in the POCSAG system, for example. Shows. This pager 1 has a display unit 2 such as an LCD on the front and cursor keys 3 for moving a cursor displayed on the display unit 2 in the vertical and horizontal directions.
4 and a select key 5 for selecting characters, a received message, a quiz option described later, and the like on the display unit 2. Also, in the pager 1, on the left side,
A power switch 6 is provided, and a speaker 7 for notifying an incoming call by voice when there is an incoming call for selective calling and an LED 8 for notifying the incoming call by lighting are provided on the right side.

FIG. 2 is a block diagram showing the internal structure of the pager 1. The pager 1 shown in FIG.
Antenna 21, RF receiver 22, decoder 23, I
D-ROM 24, CPU 25, key input unit 26, LED
The driver 27, the LED 8, the speaker driver 28, the speaker 7, the vibrator driver 29, the vibrator 30, the display unit 2, the ROM 31, and the RAM 32 are included.

The antenna 21 is a receiving device that receives a modulated wave (address data, message data, etc.) wirelessly transmitted from a transmission base station (service center) (not shown), and outputs the modulated wave to the RF receiver 22. Under the control of the decoder unit 23, the receiving unit 22 intermittently drives the time slot of its own frame set in the frame data of the ID data to detect the signal received by the antenna 21,
It has a function of demodulating and outputting to the decoder unit 23. The ID-ROM 24 is a memory for registering data such as address data set in the pager 1 and frame data indicating intermittent reception timing. Decoder part 2
Reference numeral 3 collates the calling number data (address data) input from the RF receiver 22 with the address data registered in the ID-ROM 24, and outputs a coincidence signal to the CPU 25 in the case of coincidence. It has a function of controlling the RF receiving unit 22 to continue the receiving operation.

The CPU 25 controls the operation of the pager 1 as a whole according to various programs stored in the ROM 31, and controls each unit connected as shown in FIG. 2 by a control signal or reads / writes data. To control. The CPU 25 reads and displays the received message, which serves as secret information as a secret function, by the operation according to the flowchart of FIG. The key input unit 26 is an operation input device including cursor keys 3 and 4, a select key 5, a power switch 6, and the like.
Signals associated with various operations are output to the CPU 25. The LED driver 27 is controlled by the CPU 25, and when receiving a call, LE
D8 is for lighting display drive, LED8 is LE
As the D driver 27 is driven, a lighting display for notifying an incoming call is displayed. The speaker driver 28 is a CPU
The speaker 7 is controlled by 25 to generate a setting notification sound signal, and the speaker 7 generates a notification sound which is a ringing sound for notifying an incoming call based on the signal generated by the speaker driver 28. Vibrator driver 2
Reference numeral 9 is controlled by the CPU 25 to drive the vibrator 30 to vibrate when an incoming call arrives. The vibrator 30 generates a vibration for notifying an incoming call according to the driving of the vibrator driver 29.

The display unit 2 receives display data from a display buffer (not shown) to display images such as characters and figures corresponding to each key operation, and a cursor to be moved according to the operation of the cursor keys 3 and 4. It has a display function. The ROM 31 is a program for operating the CPU 25 (a program according to the flowchart of FIG. 4 or the like).
And a character generator ROM section for generating display data (character image) based on the character code. RAM3
Reference numeral 2 has areas such as a quiz memory area 32a in which a quiz and its correct answer are stored in a data format, a message memory area 32b in which received message data and the like are stored, and a work memory area 32c when the CPU 25 operates.

The RAM 32 will be described in detail. FIG. 3 is a diagram showing an example of a memory configuration of the quiz memory area 32a of the RAM 32 according to the first embodiment. In the quiz memory area 32a, as shown in FIG. 3, the quiz information in which the quiz data (QZ1, QZ2 ... QZm) and the answer data (ANS1, ANS2 ... ANSm) showing the correct answer are associated in a data format is m ( m is a natural number) and each quiz information is No. 1 to No. It is managed by addresses up to m. These quiz information are randomly or in order to restrict reading of message data which is confidential information to a third party every time a message is received or the message data stored in the message memory area 32b is read. , One by one. This can prevent continuous reading of the same quiz. The user can input and set the quiz data and the answer data using the key input unit 26.

Next, the operation will be described. FIG. 4 shows the first
5 is a flowchart for explaining the operation according to the embodiment of the present invention, and FIGS. 5 to 7 are views showing display examples when a message is received.

In the pager 1, when the power is turned on by turning on the power switch (key input unit 26), an incoming call is detected by intermittent reception in order to wait for a selective call from the service center (steps S1 and S2). .

When an incoming call is detected in step S2, in the next step S3, the calling number in the received data is compared with its own address data stored in the ID-ROM 24, and the coincidence is confirmed. Then, in step S4, the incoming call is notified by a preset sound mode or vibrator mode. After the incoming call notification in step S4, the message data in the received data is stored in the message memory area 32b. It is to be noted that the lighting control of the LED 8 is performed at the time of incoming call.

Next, in step S6, a quiz is selected. In this case, since the quiz data is randomly selected from the quiz memory area 32a as a predetermined condition, for example, the random number generation process is executed by the CPU 25, and the address ADR is obtained according to the random number value obtained as a result.
One address is selected from S1 to ADRSm, and the quiz data stored corresponding to this address is determined as the quiz to be given for this incoming call. For example, address A
When DRS1 is selected, this address ADRS
The quiz data QZ1 corresponding to 1 will be adopted.

Then, the quiz data QZ1 is read from the quiz memory area 32a and is displayed on the display unit 2 by characters or figures (step S7). When the read quiz data QZ1 is expressed by a character string and the content is, for example, "What is the highest mountain in Japan?", As shown in FIG. 5, the quiz display area is displayed. At 21, the character string “Nihondaiichi Bantakai Yamaha?” Is displayed. Since this quiz is one of three choices, three answers including one correct answer are included in the quiz data QZ1 as a part of the quiz data, and as shown in FIG. The character string "1. Takayama 2. Fujisan 3. Hotakadake" is displayed. In this quiz, the correct answer is the second answer, and the content of the answer data ANS1 stored in association with the quiz data QZ1 is "2".

In this display state, the user can operate the cursor key 3 to move the cursor CL on the display unit 2 to a desired answer position, and operate the select key 5 at that position. This operation completes the input of the answer. That is, when the cursor CL is pointing to the second answer (2. Fujisan) as shown in FIG. 6 and the select key 5 is operated (step S8), this is C.
The PU 25 detects and shifts the processing to the next step 9. In this step S9, the input answer data "2" is compared with the answer data ANS1 "2" stored in the quiz memory area 32a, and a match / mismatch is determined. In this judgment, both answer data are "2".
Therefore, the determination result of agreement, that is, the correct answer is obtained. Therefore, since the answer entered by the user is the correct answer (step S10), in step S11,
The message data received in step S5 is read from the message memory area 32b, and the content is displayed on the display unit 2. For example, if the content of the message data is the character string "always", the character string "Itsumono Tokoro" is displayed in the message display area 23 as shown in FIG.

If no incoming call is detected in step S2, the calling number does not match its own address in step S3, or the answer entered in step S10 is an incorrect answer, the process is executed. The process returns to step S1 again to wait for an incoming call.

When the secret mode is not selected by the select key 5, after the process of step S5, the process of steps S6 to S10 is skipped and the process proceeds to step S11.

As described above, according to the first embodiment, when the message arrives, the path information that must be input each time is changed, that is, the content of the quiz given every time is changed. Therefore, even if the third party knows the content of one quiz, the content does not have to be continuously asked, and it is possible to make it difficult to read the message which is the confidential information and to decrypt the message.

Since the path information is in the quiz format,
Unlike the case of simply storing a character string, a pager owner can easily derive an answer by association from the relationship between the quiz and the answer, and is free from the trouble of remembering. This is because if the path information is a character string, the more path information there is, the easier it will be to forget because it has a lesser memory. Is easy to remember and easy to derive by association. In this case, the number of quizzes hardly matters, and a plurality of pieces of path information can be easily and persistently remembered in a quiz format.

In the first embodiment, both the quiz data and the answer data are represented by characters, but either one or both may be figures (images). In addition, since the quiz was selected from three choices, the desired number was input as the method of inputting the answer. However, the answer may be input in characters without using the quiz as an alternative question. The role of the secret function becomes larger.

(Second Embodiment) Now, the above-mentioned first embodiment
In the above embodiment, the case where the receiver sets the secret mode in the pager 1 on the receiving side has been described. However, as in the second embodiment described below, the sender on the transmitting side sets the secret mode. It can also be applied to the case. Also in the second embodiment, the pager has the same configuration as that of the pager 1 shown in FIGS. 1 and 2, and therefore the description thereof is omitted and the same reference numerals are used.

First, a method of designating a quiz will be described. FIG. 8 is a diagram showing an example of a data format of transmission data according to the second embodiment. The transmission data 80 shown in FIG. 8 includes call number data 81, quiz identification code 82, quiz data 83, and answer data 8 which are the main parts.
4 and message data 85. The receiving pager starts the receiving operation according to the data format of the transmission data 80.

The quiz identification code 82, the quiz data 83, and the answer data 84 are added to the beginning of the message data when the sender wants to send the message data 85 as a secret message (secret information) to the calling party. This is the data to be attached.

In the transmission data 80, the calling number data 81 is data for determining whether or not the pager on the receiving side only selectively calls itself, by comparing and collating with the own address data stored in the ID-ROM 24. is there. The quiz identification code 82 is information indicating whether or not the transmission data 80 is a message with a quiz. The quiz data 83 and the answer data 84 are data transmitted in association with the quiz identification code 82, and are the above-mentioned quiz data QZ1.
..- QZm and the answer data ANS1 to ANSm have a one-to-one correspondence. For the message data 85, the quiz identification code 8 is added to the transmission data 80.
Since 2 is added, it is positioned as confidential information.

Next, the operation will be described. FIG. 9 is the second
10 is a flow chart for explaining the operation according to the embodiment of the present invention, and FIGS.

In the pager according to the second embodiment, when the power is turned on by turning on the power switch (key input unit 26), the transmitting base station (service center)
In order to wait for the selective call from (1), the incoming call is detected by the intermittent reception (steps S21 and S22).

When an incoming call is detected in step S22, the received calling number is compared with the self-address stored in the ID-ROM 24 in the next step S23, and if a match is confirmed, the step is confirmed. In S24, the incoming call is notified by a preset sound mode or vibrator mode. After the incoming call notification in step S24, the received data is stored in the message memory area 32b in step S25. In this case, if the received data has a data format such as the transmitted data 80, it becomes a message with a quiz. Therefore, in the message memory area 32b, together with the message data 85, the quiz identification code 82 after the calling number data 81. , Quiz data 83, and answer data 84 are stored.

Next, in step S26, it is determined whether or not the message has a quiz. This step S2
In step 6, the existence of the quiz identification code is determined from the received data stored in the message memory area 32b in step S25. When the presence of the quiz identification code 82 is confirmed in the received data, the received data is determined to be a message with a quiz. In this case, the process proceeds to step S27, and the quiz data is read from the message memory area 32b.

For example, when the quiz data 83 read from the message memory area 32b is a mixture of figures and character strings, the quiz display area 24 is displayed as shown in FIG. , And the portrait of the caller, who is the sender, is displayed together with the character string "Watashi Hadare de show?" In this quiz, an answer display area 25 is set, and characters can be input therein by operating the key input unit 26.

In this display state, the user can operate the cursor key 3 and the select key 5 to move the cursor CLL on the display section 2 to the right and input the name of the portrait figure. That is, as shown in FIG. 11, if the name (character string) of "TOKYO TARO" is input as a character, the answer input is completed (step S28). CPU
25 collates the input answer data of the name "Tokkyo Taro" with the answer data 84 stored in the message memory area 32b, and determines whether they match or not (step S29). In this judgment, since both answer data are "Tokkyo Taro", a judgment result of coincidence, that is, a correct answer is obtained. Therefore, since the answer entered by the user is correct (step S30), the message data 85 received in step S25 is read from the message memory area 32b in step S31, and the content is displayed on the display unit 2. . For example, if the content of the message data 85 is the character string "usually", the character string "Itsumono Tokoro" is displayed in the message display area 26 as shown in FIG. At this time, the name of the answer “Tokkyo Taro” (answer display area 25) may be displayed.

If no incoming call is detected in step S22, the calling number does not match its own address in step S23, or the answer entered in step S30 is an incorrect answer, the process is executed. The process returns to step S21 again to wait for an incoming call. If it is determined in step S26 that the message is not a quiz message, the process proceeds to step S31 to display the message based on the message data stored in the message memory area 32b.

As described above, according to the second embodiment, the sender can change the path information added to the message data, that is, the content of the quiz, so that the third party can change the quiz. Even if the sender knows the contents, the sender can change the contents of the quiz added to the message data to make it difficult to read and decrypt the confidential message.

In the case of the second embodiment, it is possible to increase the sense of solidarity between the sender and the legitimate receiver, and improve the confidentiality of the third party. Since this is a question, the recipient side can send a message with entertainment, in that the quiz is solved unlike receiving a message.

Also in the second embodiment, either one or both of the quiz data and the answer data may be a figure (image). When the quiz data is a figure, a portrait The figure is not limited to a figure, and may be something that can be understood only by the owner of the pager on the receiving side, such as a building. In addition, the answer method may be an alternative method as in the first embodiment.

In the second embodiment, the method of transmitting the quiz data by including the quiz data in the transmission data 80 is adopted, but as a modified example, the quiz data is the same as in the first embodiment. A method may be adopted in which the pager on the reception side stores the quiz data and the transmission side specifies the desired quiz data.

FIG. 13 is a diagram showing the memory configuration of the quiz memory area in the modification of the second embodiment, and in the figure, 132a indicates the quiz memory area. This quiz memory area 132a is a quiz number.
1 to No. n (n is a natural number), and the quiz data (QZ1 to QZ1 to
QZn) and answer data (ANS1 to ANSn) are stored.

Next, a method of designating a quiz will be described. FIG. 14 is a diagram showing an example of the data format of transmission data according to the modification of the second embodiment. FIG.
The transmission data 140 shown in FIG. 1 is the calling number data 141, the quiz identification code 142, the quiz number.
It has data 143 and message data 144. The receiving pager starts the receiving operation according to the data format of the transmission data 140.

In the transmission data 140, the calling number data 141 is data for determining whether or not the pager on the receiving side only selectively calls itself, by comparing and collating with the own address data stored in the ID-ROM 24. is there. The quiz identification code 142 is information indicating whether the transmission data 140 is a message with a quiz. Quiz N
o. The data 143 is data transmitted in association with the quiz identification code 142, and is the quiz data QZ described above.
In order to specify one quiz data from 1 to QZn, the quiz number. 1 to No. n is designated. Since the quiz identification code 142 is added to the transmission data 140, the message data 144 is positioned as confidential information.

Next, the operation will be described. The second mentioned above
9, the quiz number is displayed based on the quiz data 83 received in step S27 in FIG. Based on the data 143, the quiz No. Decrypt the quiz memory area 1
32a of the decrypted quiz number. Processing for reading and displaying the quiz data corresponding to is executed. Also,
In contrast to the answer determination in step S29, in this modification, the above-mentioned decrypted quiz number from the quiz memory area 132a. A process for reading and determining the answer data corresponding to is executed.

As described above, even if the pager itself possesses the quiz data and the answer data, the quiz specified by the transmitting side is presented when the message arrives, as in the second embodiment. Therefore, even if the third party knows the content of one quiz, by changing the quiz designated by the sender, it is possible to make it difficult to read and decrypt the message which is confidential information.

Further, the sender does not need to send the quiz data and the answer data, and only the data designating the quiz need be added to the message data and sent.
It is possible to simplify the transmission process, reduce the traffic volume, and increase the transmission message data volume.

In the first and second embodiments and the modifications of the second embodiment described above, the explanation was given mainly on the arrival of a message, but it was received in the past and stored in the message memory area 32b. A quiz may be provided for the message data that is present and the message may be read and displayed only when the answer is correct. In this way, it is possible to make it difficult to read and decipher a message received in the past, and to enable double guarding of confidential information at the time of message reception and message reading. . In the second embodiment and the modification of the second embodiment, a method for storing and managing a dedicated memory area so that it is possible to determine whether or not a past message is confidential information, and a quiz identification. There are methods such as managing by code.

In addition, when the quiz is asked, the quiz data may include hint data which is a hint of the quiz. In this case, even if there is a hint, the legitimate recipient (pager owner) will be notified. However, it is difficult for the third party to understand. For example, in the second embodiment, there is a method of displaying a part of the name in characters on a portrait picture which is a quiz.

Also, a legitimate recipient (pager owner)
The contents of the quiz that can be understood only include a quiz about the sender, a quiz about the receiver, a quiz about the hobby of the receiver, and the like.

[0054]

As described above, according to the invention described in claim 1, the path information input while displaying the received quiz data matches the path information received together with the quiz data. Message information received together with the quiz data is displayed, it is possible to make it difficult to decipher the path information and to make it difficult or impossible to read the message for confidential messages. The selective call receiver can be obtained.

According to the second aspect of the present invention, when the data is received, if there is a quiz identification code, the quiz data is displayed and the path information is input, so that the path information received together with the quiz data is included in the path information. When they match, the message information received with the quiz data is displayed, so it is possible to make it difficult or impossible to read the path information for messages that are confidential information, and to make the message reading difficult or impossible. It is possible to obtain a possible selective call receiver.

[Brief description of drawings]

FIG. 1 is a front view showing an external shape of a selective call receiver according to the present invention.

FIG. 2 is a block diagram showing an internal configuration of the pager shown in FIG.

FIG. 3 is a diagram showing a memory configuration example of a quiz memory area shown in FIG.

FIG. 4 is a flowchart illustrating an operation according to the first embodiment.

FIG. 5 is a diagram showing a display example at the time of selective calling in the first embodiment.

FIG. 6 is a diagram showing a display example at the time of selective calling according to the first embodiment.

FIG. 7 is a diagram showing a display example at the time of selective calling according to the first embodiment.

FIG. 8 is a diagram showing an example of a data format of transmission data according to the second embodiment.

FIG. 9 is a flowchart illustrating an operation according to the second embodiment.

FIG. 10 is a diagram showing a display example at the time of selective calling according to the second embodiment.

FIG. 11 is a diagram showing a display example at the time of selective calling according to the second embodiment.

FIG. 12 is a diagram showing a display example at the time of selective calling in the second embodiment.

FIG. 13 is a diagram showing a memory configuration example of a quiz memory area according to a modified example of the second embodiment.

FIG. 14 is a diagram showing an example of a data format of transmission data according to a modification of the second embodiment.

[Explanation of symbols]

 1 pager 2 display section 3, 4 cursor key 5 select key 6 power switch 7 speaker 8 LED 21 antenna 22 RF receiving section 23 decoder section 24 ID-ROM 25 CPU 26 key input section 27 LED driver 28 speaker driver 29 vibrator driver 30 vibrator 31 ROM 32 RAM 32a Quiz memory area 32b Message memory area 32c Work memory area

Claims (2)

[Claims] 1. Receiving means for receiving message information added with path information associated with selective call and display information corresponding to the path information, and displaying the message information and display information received by the receiving means. Display means, path information input means for inputting path information, display information received by the receiving means on the display means, and path information input by the path information input means and receiving by the receiving means And a display control unit that allows the display unit to display the message information received by the receiving unit when the received path information matches. 2. Setting means for setting a plurality of sets of path information and display information corresponding to the path information, and specification information for specifying the path information and the display information set in the setting means associated with self-calling. Receiving means for receiving the added message information, and a display for displaying the display information set in the setting means specified by the message information received by the receiving means and the specifying information added to the message information Means, path information input means for inputting path information, display information set in the setting means designated by the designation information received by the receiving means on the display means, and the path information input It is set in the setting means designated by the path information input by the means and the designation information received by the receiving means. A selective call receiver comprising: a display control unit that allows the display unit to display the message information received by the receiving unit when the path information matches.