JPS61124988A - Display cotnrol system for transactor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a transaction device having two displays for an operator and a customer, and uses a common display control circuit to reduce the number of signal lines and simplify the display control. The present invention relates to a display control method for a transaction device.

[Conventional technology]

Conventionally, in transaction terminals (POS), for example, display data input from an internal keyboard and a host device (host) is stored in a display memory under the control of a microprocessor (MPU). A transaction device is used which displays a display for a reading operator and also a display for a customer, if necessary. FIGS. 3(α) and (6) show an example of this type of transaction device. Under the control of the MPU 1 shown in the figure (@), the display memory 2.
A keyboard (KB), a 3° printer (PR) 4, and two display systems, a main display system for operators and a customer display system for customers, are provided. That is, operator-related memory M display data, M-customer-related memory C display data, and display control data input from the host through the internal keyboard are respectively written into the display memory 2 as codes. Under the control of the MPU 1, this content is read out and distributed via the distribution circuit 5 into two series according to addresses, and an address and data are assigned to each series.

Control data is sent to the module-configured display control circuits 61 and 62 through each bus, and after controlling the arrangement of each data at the screen position, it is sent to the image turn (as a turn) through decoders 7s * 7z for each data and control.
driver 81-1h), and customer displays 91. Graphics, two characters, etc. are displayed on the main display 92 for the operator.

In this case, the two display series share the input contents of the display memory 21, but are completely independent in configuration and their operations are controlled separately. FIG. 6(6) shows that the memory M display data and the memory M0 display data in the distribution circuit 5 are processed independently at different times.

[Problem to be solved by the invention 1 g3 In the configuration shown in Figure 0), the L/S and TDA control buses from the distribution circuit 5 to each display system are connected to each display control circuit IN*62 by cable. Further, each signal line is connected to a de-da driver on the respective display device side. By adding a customer display in addition to the main display in this way, the number of signal lines increases by about 30 in addition to the couple, making the ninth wiring more complicated, and especially when modularized, it becomes complicated and expensive. Become. If both displays display the same content at the same time, it is sufficient to share the display control circuit and display them in parallel. The displayed contents are not necessarily the same, and sometimes one side is displayed too much.

The purpose of the present invention is to reduce the number of signal lines by using a common display control circuit in a transaction device having two displays for an operator and a customer, and to display different display contents on both displays at the same time or on only one display. It is an object of the present invention to provide a transaction device display control method that has a wide range of functions and simplifies display control.

Next Means for Solving Problem C] In order to achieve the above object, the display control method of the transaction device of the present invention includes a first display for an operator that is controlled by a processor, stored in a display memory, and displays next transaction data. In a transaction device having a second display for a customer and a second display for a customer, an address is provided such that each scanning line is one screen across both screens of the first and second displays. Each transaction data is stored, and the first. The present invention is characterized in that a display control circuit for the second display is provided in common, and transaction data for each display is simultaneously read out from the display memory and displayed separately on both displays.

[For production]

With the above configuration, the display contents of both screens are continuous and treated as one screen, and the continuous display data of memory M and memory O read from the display memory is separately controlled by a common display control device, and the first half is is displayed on the main display, and the latter half is displayed on the customer display. If there is no display data on one side, the corresponding area of the display memory is cleared and only the other side is displayed. In this way, both displays can display different contents at the same time, or only one display can display.

In this case, one display control circuit suffices, and the number of cables and signal lines can be significantly reduced because the customer display only needs to be branched before the decoder and driver.

〔Example〕

FIG. 1 is an explanatory diagram of the configuration of an embodiment of the present invention.

In addition to the same diagram, the points that differ from the conventional example in Figure 6 are as follows:
A main display for the operator placed on the transaction terminal 1G,
One display control circuit 11 controls two display systems with a customer display 91 provided in a separate body 1b from the housing of the transaction terminal 1a, and connects them branchingly at the exit of the display control circuit 11.
The display data input to the display control circuit 11 is addressed so that, for example, memory M and memory 0 are consecutively displayed as one screen, as shown in the figure (&). This display data is inputted into the display control circuit 11, and the first half shown in FIG. Display each display content.

Of course, both may have the same content. If one is missing, no display is performed.

FIG. 2 is a flowchart showing the operation of the embodiment of the present invention.

In the figure, the MPU 1 inputs from an external or internal keyboard, checks whether the next display data is displayed only on the main display, and if it is only on the main display, stores the display content in the memory M in the display memory 2. Write and clear the memory Ct so that the customer display 91 is not displayed. If it is not only the main display, then check whether only the custom display is displayed.
Write the display contents to the display memory 20 MesosuC, and write the display contents to the memory M
Clear. If the deviation is not above, the respective display contents are written in memory M and memory 0.

As a result of the above, the display contents of either or both of the main display and the customer display are read out from the display memory 2, the display data in the format shown in FIG. 1 (6) is configured, and the data is sent to the display control circuit 11K . Then, the information is displayed separately on one or both of the main display and the customer display, and the process ends.

〔Effect of the invention〕

As explained above, according to the present invention, the display control circuit is shared between the main display for the operator and the customer display for the customer, and seven dressings are performed so that both screens become one screen, which is then stored in the display memory. This is read out and displayed separately on one or both of the screens. As a result, different contents can be displayed on both screens, or only on one side, and the number of display control circuits can be reduced to one, thereby significantly reducing the number of cables and signal lines.

[Brief explanation of drawings]

Figure 1 (→, (b) is an explanatory diagram of the configuration of the embodiment of the present invention, Figure 2 is a flowchart showing the operation of the embodiment, and Figure 3 (G). In the diagram, 1 is a microphone processor (MPU), 2 is a display memory, 3 is a keyboard, 4 is a printer, 71*7! is a decoder, 81@8! is a driver, and 91 is an expansion device. power star indicator,
9 indicates a main display, and 11 indicates a display control circuit.

Claims (1)

[Claims] In a transaction device that is provided with a first display for an operator and a second display for a customer that are controlled by a processor and display transaction data stored in a display memory, the first and second displays are arranged in the display memory. Each transaction data is stored at an address such that each scanning line forms one screen across both screens of the display device, and a display control circuit for the first and second display devices is provided in common, and the display memory is A display control method for a transaction device, characterized in that transaction data for each display is simultaneously read out and displayed separately on both displays.