JPS61107428A - Character pattern transfer system - Google Patents

Abstract

PURPOSE:To attain registration of a specific character pattern and to obtain a transfer system with ease of operation by providing additionally a circuit having a function switching the character pattern between a central processing unit side and the own equipment side to a terminal device. CONSTITUTION:When a terminal device which is connected to the central processing unit, provided with the operation as a work station and an off-line function, transmits a character pattern for display/print uses a direct access device, a signal A is brought into logical 1, an output of an AND circuit 6 is logical 1 to request a character pattern to the central processing unit. In using the character pattern of a floppy disc, the signal A is brought into logical 0, an output of an AND circuit 8 goes to logical 1 to request the character pattern to the own equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a character pattern transfer method, and more particularly to a character pattern transfer method in a system having a workstation function and an offline function.

C. Prior Art] Terminal devices that transfer character patterns from a storage area for storing character patterns and display the characters on a screen, and printing devices that print characters based on the character patterns are widely used. These devices are connected to a central processing unit and used as workstations, and these devices are also commonly used offline.

Devices used as workstations share a storage area for storing character patterns on the central processing unit side, and transfer character patterns from the storage area for display or printing. On the other hand, an offline device uses a storage area for character patterns within its own device to display or print. The former problem is that workstation devices cannot use device-specific character patterns, and the latter problem is that setting a uniform pattern for offline devices means changing the character pattern for all devices, making management operations difficult. The problem is that it becomes complicated.

[Problem that the invention seeks to solve]

In view of the above-mentioned conventional situation, it is an object of the present invention to provide a character pattern transfer method that allows each user to register a unique character pattern and is easy to operate. In order to facilitate operation, the device is equipped with a character pattern switching function on its own side and on the central processing unit side.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides a device that is connected to a central processing unit, operates as a workstation and has an offline function, and transfers and displays/prints character patterns. The apparatus is equipped with a function of switching character patterns between the central processing unit side and its own apparatus side, and the character patterns to be used can be switched.

[Effect]

The switching described above displays the mode to indicate that the workstation is to be used in an offline state, and switches by changing the mode to facilitate operation.

〔Example〕

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a circuit diagram showing the switching function of an embodiment of the present invention, FIG. 2 is a flowchart showing the operation of the present invention, and FIG.
The figure is a system configuration diagram to which the present invention is applied. The same parts are denoted by the same reference numerals throughout the figures.

The central processing unit l has a direct access device 2 (hereinafter referred to as DASD) as a storage area for storing character patterns,
This character pattern of DASD 2 is transferred to each terminal device 3-1 to 3-n and used by each terminal device. In order to perform an offline function, each terminal device has, for example, floppy disks 4-1 to 4-n as character pattern storage areas.

A circuit having a switching function shown in FIG. 1 is attached to each of the terminal devices 3-1 to 3-n described above.

The explanation will be given using the terminal device 3-1. When the terminal device 3-1 uses DASD 2, it is set to workstation mode, and the logical value is "1." When the floppy disk 4-1 is used, it is set to the terminal device mode, and the logical value rOJ is set to 1.
．．・Turn a signal into a signal.

If you want to use DASD 2, you can add a logic value to the signal "
1” activates the flip-flop circuit 5 and the logic value becomes “1”.
is output, and a logic value "1" is input to one terminal of the AND circuit 6. A signal requesting a character pattern is inputted at the logical value "1" to the other input terminal of the AND circuit 6, and the AND circuit 6 outputs the logical value "1". At this time, the output logic value "1" of the flip-flop circuit 5 is cut off by the invert circuit 7, and the output of the AND circuit 8 is set to the logic value "0". When the output of the above-mentioned AND circuit 6 is a logical value "1", a character pattern is requested from the central processing unit 1.

When the character pattern on the floppy disk 4-1 is used, the signal to the signal becomes a logic value "0", the Furi-7Fronop circuit 5 outputs a logic value "0", and the output of the AND circuit 6 becomes a logic value "0". At the same time, it is inverted by the invert circuit 7 and becomes the logical value rlJ, and the output of the AND circuit 8 is changed to the logical value "
1". When the AND circuit 8 becomes a logical value "1", it requests the character Bakun from its own device.

The above operation will be explained using FIG. 2. Mode setting is performed (1), and when a character pattern is requested (2), the character pattern to be used is determined (3). The determined corresponding character pattern is used (4).

Although the above explanation has been made with respect to the terminal device 3-1, it goes without saying that any other terminal device can operate without any problem.

Therefore, character patterns can be switched between the central processing unit side and the terminal device side simply by setting the mode.

〔Effect of the invention〕

As you can understand from the above explanation, the character pattern used independently is the character pattern of the own device, and when the character pattern is changed and used in common, the character pattern of the central processing unit is used. When applied to a device that handles character patterns, it has many operational advantages.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing a switching function of an embodiment of the present invention, FIG. 2 is a flowchart showing the operation of the present invention, and FIG. 3 is a system configuration diagram to which the present invention is applied. In the figure, 1 is a central processing unit, 2 is a DASD, 3-
1 to 3-n are terminal devices, and 4-1 to 4-n are floppy disks. Figure 1 Figure 2

Claims (1)

[Claims] In a device that is connected to a central processing unit, has an operation as a workstation and an offline function, and performs display/printing based on character patterns, the character patterns on the central processing unit side and on the own device side are transmitted to the device. A character pattern transfer method that is equipped with a switching function and is characterized in that the character patterns to be used can be switched.