JP2546474B2 - Communication terminal - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal device such as a facsimile device, and more particularly to a communication terminal device of a type having a function of determining whether communication is possible using a so-called password.

[0002]

2. Description of the Related Art For example, in a facsimile machine having a polling transmission function, the same password as a pre-registered password is transmitted from the other party (calling side) so that polling transmission can be executed only to a particular party. If it is not done, there is one configured not to execute polling transmission to the other party. Conventionally, the number of digits of a password used in such a facsimile device is also caused by the fact that the polling transmission / reception function is not standardized by CCITT (International Telegraph and Telephone Consultative Committee).
It is uniquely specified for each manufacturer. Then, when registering the password, only the password matching the number of digits designated by the manufacturer is registered. Then, conventionally, the determination as to whether or not the password transmitted from the communication partner matches the pre-registered password is made by referring to the total number of digits of the password.

[0003]

However, in the above-mentioned conventional apparatus, although the passwords can be matched between the facsimile machines shared by the manufacturers, the passwords cannot be matched between the facsimile machines of different manufacturers. There was a drawback that the polling transmission could not be executed.

As a measure to solve the above-mentioned difficulty, for example, by standardizing the transmission procedure of the password, a field of a predetermined maximum number of digits (for example, 20 digits) for setting the password in the procedure signal of the transmission procedure. It is conceivable to provide a field) and use the password with the number of digits within that range. However, in the conventional facsimile apparatus, in order to judge the data of all digits of the password transmitted from the other party as valid data, for example, in a field of maximum 20 digits, a password of 4 digits of a smaller number of digits is used. When (for example, “9678”) is used, the handling is different depending on whether the remaining 16 digits are 0 or space. For example, if the password of "9678" is registered following the space of 16 digits, and the other party sends data in which 16 digits of "0" and "9678" are combined, both passwords are It will not match. Therefore, in such a case, a problem that desired polling transmission / reception cannot be performed still occurs, and the above-mentioned difficulties cannot be appropriately solved.

Further, in the above case, in order to properly match the passwords without error, the password with the maximum number of digits may be used instead of the password with the few digits. However, with such a configuration, it is necessary to always perform a designated input operation of a password with the maximum number of digits (for example, a key operation of "000 ... 0009678" of 20 digits) every time a specific communication is executed. Therefore, the trouble is very troublesome, and the above-mentioned difficulties cannot be properly solved.

The present invention has been proposed in view of the above points, and when a password having an arbitrary number of digits required by the user is used within the range of the allowable number of digits of the password, the user can Eliminates the possibility that a password that should originally match due to data other than the password data of the number of digits requested by the company will not be unduly judged as a mismatched password, and data communication that uses a password with a number of digits smaller than the maximum number of digits Its purpose is to enable proper execution.

[0007]

The communication terminal device according to the present invention, which has been proposed to achieve the above-mentioned object, is provided when a password transmitted from a communication partner matches a password previously registered in a storage unit. A communication terminal device having a control means for permitting subsequent predetermined communication only, and means for counting the number of digits of a registered password is provided, and the control means has been transmitted from a communication partner. It is configured so that only the data of the counted digit number of the password is the determination target.

[0008]

In the communication terminal device according to the present invention having the above-mentioned configuration, if the desired password is registered in the storage unit, the digit number of the password is counted. When password data is transmitted from a predetermined communication partner, even if additional data such as 0, space, or the like is added to the password data, the above Only the data of the counted number of digits is used as the determination target, and other data such as 0 and spaces are excluded, and it is determined whether the passwords match or mismatch. Therefore, as the sender of the password,
If a password having the registered number of digits is input and transmitted on the password receiving side, both passwords are determined to match, and desired communication can be performed thereafter. Further, as a result of the above, it is not necessary to use the maximum number of digits of the password, and the password input operation and the like become easy.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an example of a hardware configuration of a facsimile device F as a specific example of a communication terminal device according to the present invention. This facsimile device F is a CP
For the signal processing unit 1 (corresponding to the control means according to the present invention) composed of U or the like, a facsimile communication control unit 2, a storage unit 3, an operation unit 4 provided with ten keys and other operation keys necessary for communication operation, An image reading unit 5 for reading and scanning the image of the document G, a display unit 6 having a liquid crystal display screen, a print output unit 7 for printing out image data on recording paper, and encoding / decoding of image data. Hard codecs 8 and the like that perform processing are interconnected. Here, the facsimile communication control unit 2
Is a line for switching connection between a modem 2a for transmitting / receiving image data and mutual transmission of a protocol signal of a binary code signal system including password data, and a line L between the modem 2a and an attached telephone 9. The control unit 2b includes a tone signal generating circuit 2c for executing mutual transmission of protocol signals as tonal signals, a tone signal detecting circuit 2d, and the like.

The storage unit 3 is provided with a system memory 3a, an image memory 3b and the like, which are composed of a ROM and a RAM. The image memory 3b stores image data of an original G read and scanned by the image reading unit 5. It can be stored as image data for polling transmission. On the other hand, the RAM of the system memory 3a is configured to be able to store the password data D1 for allowing the polling transmission by a specific key input operation of the operation unit 4, as shown by the arrow a. Further, the data processing unit 1 is also configured to be able to store data D2 regarding the number of digits of the password data counted by the signal processing unit 1.

The signal processing section 1 controls the operation of each section in order to properly execute facsimile communication, and is configured to perform the following control when executing polling transmission. That is, the signal processing unit 1 waits for the original document G to be set in the image reading unit 5 or the original document G in the image memory 3b.
When a call is made from another facsimile device in the standby state in which the image data of FIG. 2 is stored, the incoming call is made and the mutual transmission (handshake) of the protocol signal is executed via the facsimile communication control unit 2. . Then, during the handshake, when the control command and the password data requesting the polling transmission are transmitted from the other party, the password and the digit number data D1 registered in advance in the RAM of the storage unit 3,
D2 is read and it is determined whether or not the transmitted password matches the registered password. However, in such a determination, for example, when the digit number data D2 is “4 digits”, only the last 4 digits of the password data transmitted from the other party are determined as valid data, and other than that. It is configured to compare with the registered password data D1 while excluding the data of the number of digits. In such a case, only the four digits of the registered password data D1 are also compared. If the signal processing unit 1 determines that the passwords match, as a result of the above determination, it causes the facsimile device on the calling side to perform polling transmission of the image data in the standby state, but if the passwords do not match, polling transmission is performed. Is executed, but for example, a communication error is processed.

Next, an example of use and operation of the facsimile apparatus F having the above configuration will be described. First, it is necessary to input and store the desired password data D1 in the storage unit 3 by operating the operation unit 4 of the facsimile apparatus F.
When using, for example, "5268" as the password, enter the number. Then, the signal processing unit 1 stores the data of the input password D1 in the storage unit 3 and counts the digit number data D2 as "04",
This data D2 is also stored in the storage unit 3. Even if the password field has a maximum of 20 digits, it is not necessary to register a 20-digit password such as "000 ... 0005268". Incidentally, the fact that the password of the facsimile apparatus F is "5268" is transmitted to the desired party as necessary.

Next, in a state in which the document G is set in the image reading unit 5 and the standby state for polling transmission is set, a call is made from another facsimile machine Fa shown in FIG. When the control command requesting polling transmission and the password data are transmitted during the handshake, the facsimile device F regards only the last four digits of the password data as valid data and stores it. The password data registered in the part 3 is compared. Therefore, the password data sent in the 20-digit field is "000 ...
"0005268" or "526 following the space
8 ”, it is determined that the password matches the registered password. In addition to this, if the last four digits of the password sent are "5268",
It is determined that the passwords match, regardless of the data of other digits. As a result, on the side of the facsimile device Fa on the calling side that requests polling transmission, a simple operation of inputting "5268" is sufficient for the key operation input of the password. Even if the 20-digit password field is set, there is no need to enter the 20-digit password.

As a result of judging the data of both passwords as described above, if the passwords match,
After that, the facsimile device F polls and transmits predetermined image data to the facsimile device Fa. On the other hand, if the passwords do not match, polling transmission is not executed and the line is cut off. Steps 100 to 111 of the flowchart shown in FIG. 3 show the above-mentioned series of operation procedures.

In the above embodiment, the case of polling transmission / reception in the facsimile machine has been described as an example, but the present invention is not limited to this. In the present invention,
It is needless to say that it can be applied to password communication other than polling transmission / reception, for example, confidential communication, and the specific type of the communication terminal device is not limited to the facsimile device, and various communication terminals such as a computer having a communication function can be used. It is applicable to the device. Further, in the above embodiment, when the password data is registered, the number of digits is automatically counted and stored in the storage unit. Also, the configuration may be input by the operator.

[0016]

As can be understood from the above description, according to the communication terminal device of the present invention, by registering a password having an arbitrary number of digits, only the number of digits of the registered password is matched with the password.・ Because it can be judged as a mismatch, if you try to use a password with an arbitrary number of digits requested by the user within the allowable number of digits of the password, the password that should originally match , It is possible to solve the problem that it is judged as unreasonable mismatch due to data other than the registered number of digits, and simple data communication with key operation using a password with fewer digits than the maximum number of digits. The special effect of being able to properly execute is obtained. In particular, this effect promotes standardization of communication procedures using passwords by abolishing the number of digits specified for each manufacturer and allowing the use of passwords with any number of digits within the specified maximum number of digits. It is useful and useful.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of a hardware configuration of a facsimile device as a specific example of a communication terminal device according to the present invention.

FIG. 2 is an explanatory diagram showing an example of a usage state of the facsimile apparatus shown in FIG.

3 is a flowchart showing a series of operation procedures when polling transmission / reception using a password is executed in the facsimile apparatus shown in FIG.

[Explanation of symbols]

 1 signal processing unit 2 facsimile communication control unit 3 storage unit 3a system memory 3b image memory 4 operation unit 5 image reading unit 6 display unit D1 password data D2 password digit data G original L line F facsimile machine

Claims (1)

(57) [Claims] 1. A communication terminal device comprising control means for permitting subsequent predetermined communication only when a password transmitted from a communication partner matches a password registered in advance in a storage unit, which is registered. Means for counting the number of digits of the password, and the control means is configured so that only the data of the counted number of digits of the password transmitted from the communication partner is the determination target. Terminal device.