JPH04199409A - Information processor - Google Patents

Abstract

PURPOSE:To prevent an unqualified person from using illicitly an information processor while a qualified operator is absent by carrying out again an illicit use inhibiting means after detection of the presence or absence of the operator in his/her seat and with input of a detection signal showing the presence of the operator after an absence state. CONSTITUTION:A light emitting element 6 is provided at the front of a terminal and emits the infrared rays, and a light receiving element 7 detects the light emitted from the element 6 and reflected by an operator. Then an operator presence detection circuit 8 containing both elements 6 and 7 sends an interruption signal to a processor 1 when a detection signal showing the absence of the operator is received from the element 7 in an active state of an information processor. Then the illicit use of the information processor is inhibited when the signal showing the presence of the operator is inputted after the input of the interruption signal. Thus it is possible to reconfirm an identification number when the operator is present again in his/her seat and to prevent such an inconvenient case where an unqualified person operates the processor while the qualifies operator is temporarily absent.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an information processing apparatus equipped with unauthorized use prohibition means for confirming a password input by an operator at startup.

2. Description of the Related Art Conventionally, means for preventing unauthorized use of information processing equipment requires the operator to input a PIN number including a pre-assigned password only at the start of use, and this PIN number is not registered. The system compares the password with the current password and prohibits the operation if it is invalid.

Problems to be Solved by the Invention However, the above-mentioned conventional unauthorized use prohibition means is designed to check only when the operation is first started.

For this reason, there is a problem in that if an unqualified person operates the information processing apparatus while a qualified operator is sitting in his or her seat after it has been activated, this cannot be detected.

It is an object of the present invention to provide an information processing device that can prohibit unauthorized use by an unqualified person even in such a case.

Means for Solving the Problems In order to solve the above problems, the information processing device of the present invention includes:
In an information processing device equipped with unauthorized use prohibition means that prompts an operator to enter a PIN number at startup and prohibits operation if the entered PIN number is incorrect, the presence of an operator installed at the front of the terminal is detected. means for executing an interrupt process when a detection signal indicating that an operator is absent is input by the element in an operating state; and means for re-executing the unauthorized use prohibition means.

Effect With the above configuration, the operator inputs his/her own PIN number and performs a confirmation operation at startup, but at this time, an interrupt signal is sent each time the element that detects whether a person is seated or not is installed at the front of the terminal. This prevents an unqualified person from operating the equipment when a qualified operator temporarily takes a seat by reconfirming the PIN number when re-seating. There is.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an information processing device according to an embodiment of the present invention;
Figure 2 is a flowchart of interrupt processing in the above embodiment.

In FIG. 1, the information processing apparatus of this embodiment includes a processor 1, an auxiliary storage device 2 that stores a control program for the processor 1, a keyboard 3 through which an operator inputs commands or data, and a processor that inputs data by inputting from the keyboard. The control program includes a memory 4 for temporarily storing control programs from the auxiliary storage device and an auxiliary storage device, and a display section 5 for displaying them.

When the control program is first started by the operator, it displays a request for input of the operator's PIN number on the display unit 5, and this display indicates that the PIN entered by the operator is that of a pre-registered authorized user. If it matches, it contains a means to prohibit unauthorized use that allows the following operations. In other words, if they do not match, use will be prohibited.

Then, as shown in step 102 in FIG. 2, if there is no interrupt signal such as a software interrupt, such as a system call, and if there is no instruction to prohibit the task, the task is processed.

Here, the features of this embodiment include a light-emitting element 6 that emits infrared light and a light-receiving element 7 that detects the light emitted by the light-emitting element and reflected by the operator, which is provided at the front of the terminal. In addition, a seating detection circuit 8 is provided which sends an interrupt signal to the processor 1 when a detection signal of no seating is input from the light receiving element 7 while the information processing apparatus is in an operating state. The device is configured to prohibit unauthorized use when a signal indicating that a seat is present is input after the interrupt signal of the circuit 8 is input.

The operation will be explained using the flowchart shown in FIG.

In FIG. 2, if one interrupt signal is generated in step 102, file access is prohibited in step 103. This sets a flag in the illegal file access prohibition register 9, which is one of the working registers provided in the processor 1. Thereafter, this processor determines whether this flag is set before accessing a file, and if this flag is set, it does not access the file. Next, in step 104, it is determined whether the user has left the seat or not. If the user has not left the seat, it is determined that it is a software interrupt such as a system call, and in step 105, processing for the interrupt signal is performed.

If the operator leaves the seat, it is determined that the operator temporarily sat down, and the process continues in step 1 until the operator re-seats in step 106.
G7 maintains that state. If you are seated again after that, the screen prompts you to re-enter your PIN number in step 108, similar to the prohibition of unauthorized use at startup, and if the entered PIN number is registered in step 109, step In step 110, the prohibition of use by an interrupt signal is reset.

Effects of the Invention As described above, the present invention has the effect of making it difficult for unqualified persons to use the information processing apparatus illegally while the operator is away from his/her seat after the start of use.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an information processing apparatus showing an embodiment of the present invention, and FIG. 2 is a flowchart of interrupt processing in the information processing apparatus. 1... Processor, 2... Auxiliary storage device, 3...
Keyboard, 4...Memory, 5...Display section, 6...
- Light emitting element, 7... Light receiving element, 8... Seating detection device, 9... Unauthorized file access prohibition register. Agent Yoshihiro Morimoto Figure 1/-Fip processor 3-1. 6-11-t. 2-1. Illegal foot 4I rare 9 begging buttocks) L cash register” entered!

Claims (1)

[Scope of Claims] 1. An information processing device equipped with an unauthorized use prohibition means that requests an operator to input a password at startup and prohibits operation if the input password is invalid, the information processing device comprising: in front of a terminal; an element for detecting the presence or absence of a seated person in the section; means for executing an interrupt process when a detection signal indicating that no seat is occupied is input from the element in an operating state; An information processing device comprising: means for re-executing the unauthorized use prohibition means;