JPS63188231A - System for protecting software - Google Patents

Abstract

PURPOSE:To realize the execution of a software as long as no connector box is available by utilizing the idle pin terminal of a standard interface to secure the attachable/detachable connection of the connector box incorporating a ROM and connecting cables via the connector box. CONSTITUTION:The connector box 4 incorporating the ROM 3 is fitted freely attachably and detachably to the connector 2 of a standard interface of an equipment main body. A data bus 9 is connected to the ROM 3 via a reading I/O port 8 by means of an idle pin terminal When the desired software is carried out, a program is loaded from an external magnetic memory medium, then the program is executed and the ROM 3 is read. Thus it is checked whether or not the read number is coincident with the loaded program number. Then the software is carried out when the coincidence is obtained between both numbers and not carried out when no said coincidence is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a protection method for software, particularly software stored in an external magnetic storage medium.

[Background of the invention]

In general, commercially available or self-created software, especially software stored on external magnetic storage media, etc., can be copied in case of damage or deterioration, but the copied software must be compatible. If you have the main model, you can run it anytime.

For this reason, it has become difficult to prevent copied software from being executed without permission. Conventionally, as a measure to prevent this unauthorized use, the printed circuit board built into the main device was Deep sea,
However, according to this method, the task of replacing the printed circuit board, etc., has become extremely troublesome.

[Purpose of the invention]

Therefore, the present invention has been made by focusing on the above-mentioned conventional problems, and can easily prevent the unauthorized execution of software by using hardware, and moreover, the hardware can be attached and detached with one touch. Our goal is to provide a software protection method that can be executed on any device that is compatible with the main unit, as long as it has the hardware and media, and that does not affect other devices. The purpose is

[Means for solving the problem] In order to achieve this objective, the software protection method according to the present invention uses the vacant pin terminals of the standard interface attached to the main body of the device to incorporate the ROM. The present invention is characterized in that a connector box is detachably connected thereto, and a cable of the standard interface is connected through the connector box.

[Effect]

As mentioned above, by using the vacant pin terminals of the standard interface, which usually has 25 pins, to detachably attach the connector box containing the ROM,
If the connector box does not exist, the software will not be able to run, and since the connector box can be attached and detached with one touch, it can be executed on any device as long as the connector box and media are paired. It becomes.

〔Example〕

Next, an embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.

FIG. 1 is a block diagram showing the configuration of hardware on which the software protection method according to the present invention is executed, and numeral 1 in the figure indicates the main body of the device. This device body 1 has standard interfaces, especially R3” 232C.
A connector 2 (hereinafter simply referred to as R3) is provided, and a connector box 4 having a built-in ROM 3 is detachably attached to this connector 2 R9. The address of this ROM 3 is fixed, and data paired with the corresponding software is written therein. Reference numeral 5 in FIG. 1 indicates a control circuit for R3, to which an RS cable 7 is connected via a connector box 4 and a connector 6.

Furthermore, 8 in the figure is an I10 port for reading, which connects the data bus 9 to the ROM 3 built in the connector box 4 by using the vacant pin terminal of RS via this I10 port 8. It becomes.

Also, Fig. 2 is a flowchart when the target software is executed by hardware configured as shown in Fig. 1, and the program is executed after being loaded from an external magnetic storage medium. Then, ROM3 is read. When ROM3 is read, it is checked whether the read number and the loaded program number match. If they match, the software is executed, and if they do not match, it is stopped. .

〔Effect of the invention〕

As described above, according to the software protection method according to the present invention, software cannot be executed without a connector box containing a built-in ROM, and although software can be copied, its execution is restricted. It has become.

In addition, the connector box is detachable using the vacant pin terminals of the RS boat, so there is no need to create a special connector for it, and it does not affect other devices. As long as a magnetic storage medium and a connector box exist as a pair, software can be executed on any compatible device.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of hardware on which a software protection method according to the present invention is executed. FIG. 2 is a flowchart showing control when executing the software. l...Device body 3...ROM 4...Connector box 5...Control circuit 7...Cable 8...I10 boat 9...Data bus patent applicant Alps Electric Co., Ltd. Representative Katsutabe Ma

Claims (2)

[Claims] (1) A connector box with a built-in ROM is removably connected using the vacant pin terminal of the standard interface attached to the device body, and the cable of the standard interface is connected through the connector box. A software protection method characterized by: (2) A software protection method characterized in that the standard interface is RS232C.