JPS6145258B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display method in a data input device.

Data input devices include, for example, typewriter keyboard printers, cash registers, and the like, but recently devices with a one-line display have come into use. This one-line display consists of a plasma display panel, a character display tube, etc., and is used to monitor currently input characters, numbers, alphabets, kana characters, etc.

On the other hand, with such data input devices, there is a demand for displaying, confirming, or correcting recent data that has already been input. In this case, it may be possible to add multiple buffer memories to store recent input data, but if the stored data is recalled and simply displayed on a one-line display, the meaning of the data will be lost. It is not possible to determine whether the data has . Therefore, a method may be considered in which the stored data and its meaning, such as date, amount, etc., are input in pairs to the PDF memory. However, in a normal one-line display, there is no space to display not only the stored data but also its meaning, and in the case of a one-line numeric display, it is not possible to display the date, amount, etc. I can't.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to propose a display system for a data input device that can substantially reproduce and display data and its meaning without changing the existing one-line display.

In accordance with the above object, the present invention temporarily stores only the data input during data input and its meaning (modifier) in a newly established 1-line buffer corresponding to each modifier. , and a modifier in the data input device that displays the meaning of the data based on the address when the previous data is addressed and displayed on the 1-line display via the newly established buffer management section and mode control section. It is characterized by selectively marking keys to give meaning to the data, and this operation can also be performed by tracking desired previous data by operating the newly installed forward display key and back display key. It is characterized by doing.

The present invention will be explained below with reference to the drawings.

FIG. 1 is a front view showing an example of a data input device implementing the present invention. In this figure, 10 is a data input device, and a 1-line display 11
is added. Reference numeral 12 denotes a normal keyboard, on which keys for numbers, letters, symbols, alphanumeric characters, kana characters, etc. are arranged in a grid pattern. Also 13
It is also a normal keyboard, and modifier keys such as date and amount keys, so-called execution keys, are arranged in a grid pattern.
However, these modifier keys 13 are modified as described below based on the present invention. Therefore, in the figure, 14, 15F, and 15B are newly installed operation keys, 14 is a mode designation key, and 15F and 15B.
are the forward and back display keys respectively. The mode designation key 14 switches between normal monitor mode and reproduction mode. In this reproduction mode, the keys 15F and 15B are used to track desired data by forward search and backward search. In this reproduction mode, if past input data, for example "1978.12.24" is displayed on the one-line display 11, one of the modifier keys 13 lights up at the same time. This illuminated modifier key displays the date. In the reproduction mode, it is possible to mark the meaning corresponding to the data on the one-line display 11 by marking one of the modifier keys 13, e.g. by lighting it up, or by displaying the illumination associated with each modifier key. This can also be done by lighting up a diode or the like, and the display method is free.

The block diagram in FIG. 2 shows an example of a circuit for realizing the above-mentioned novel display method. In this figure, 10 corresponds to the data input device in FIG. 1, and 11 corresponds to the one-line display in FIG. 12 and 13 also correspond to the data input keyboard and modifier input keyboard shown in FIG. However, the keyboard 13 in FIG. 2 has keys 14, 15F, and 15B in FIG.
Execution keys such as are also included and are represented in one block. First, during normal operation, the keyboard 12 for data input is operated and the data is temporarily stored in the monitor data memory 21. And mode designation key 14 in execution keyboard 13 (Fig. 1)
When the monitor mode is specified, the mode control unit 22 opens the AND gate 23-1 and transfers the data in the monitor data memory 21 to the display buffer memory 25 through the OR gate 24. Furthermore, this is displayed on a monitor with a 1-line display.

The above is a normal monitor display operation, but at the same time, the next operation is proceeding. That is, when inputting data using the keyboard 12, modifiers that modify the meaning of the input data are also input to the keyboard 13.
(See 13 in FIG. 1). This modifier is input to the buffer management section 26 through the mode control section 22. This buffer management unit has the function of allocating one address to one modifier. 1 line buffer memory (28-1, 2
8-2, 28-3...28-n) are specified by the decoder 27 which inputs the address and decodes it. By driving the specified 1-line buffer memory, the data stored in the monitor data memory 21 is also stored in the 1-line buffer memory.

Next, if you want to recall past data that has already been input for confirmation or correction, press the mode designation key 1 on the execution keyboard 13.
4 (FIG. 1) specifies the reproduction mode. There are a maximum of n pieces of this past data, and they are stored in one of the n 1-line buffer memories 28-1 to 28-n. These stored past data are tracked using the forward display key 15F (FIG. 1) and the back display key 15B (FIG. 1) in the execution keyboard 13 to search for desired data. Now, assuming that a certain arbitrary address is specified in the buffer management section 26, a one-line buffer memory corresponding to this address, for example, one-line buffer memory 28-3, is captured. At the same time, the corresponding AND gate 29-3 is opened, and the 1-line buffer memory 28
The past data within -3 is output from the OR gate 30. In this case, the mode control unit 22 specifies the reproduction mode, and the AND gate 23-
2 is open, the output data from the OR gate 30 is displayed on the one-line display 11 through the OR gate 24 and the display buffer memory 25. This one line display 1
The meaning of the past data displayed in 1 cannot be determined from this display alone.

Therefore, an arbitrary address is specified in the buffer management section 26 mentioned above, and the decoder 27
When this address is decoded, this decoded address is also sent to line 31. Line 31 connects to a modifier keyboard (see 13 in FIG. 1) in execution keyboard 13 and marks the modifier key corresponding to that decode address. As described above, this mark can be made by lighting up the modifier key itself or its vicinity. After all, there is a one-to-one relationship between the lit modifier key and the past data currently displayed on the one-line display 11.
Since it corresponds to , the data will be given meaning. Line 32 in the figure is a read control line, and the data input keyboard 12
This is an information line for inhibiting the input of the next data after inputting one data from the buffer management section 26 until the buffer management section 26 finishes storing the one data in the corresponding one-line buffer memory. The past data in the 1-line buffer memory (28-1 to 28-n) is cleared and updated to the new data each time new data is input to the corresponding 1-line buffer memory. Ru. Therefore, it is desirable to select the number of one-line buffer memories close to the number of modifiers.

As described above, according to the present invention, a one-line display can perform not only the function of monitoring currently input data but also the function of reproducing past input data.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an example of a data input device for implementing the present invention, and FIG. 2 is a block diagram showing an example of a circuit for implementing the present invention. In the figure, 10 is a data input device, 11 is 1
Line display, 12 is a data input keyboard, 13 is a modifier keyboard, 14 is a mode specification key, 15F is a forward display key,
15B is a back display key, 21 is a monitor data memory, 22 is a mode control section, 2
6 is a buffer management unit, 27 is a decoder, 28-1
.about.28-n are n 1-line buffer memories.

Claims (1)

[Claims] 1. A data input device comprising a data input key, a modifier key that gives meaning to the input data input from the data input key, and a one-line display that monitors the input data. The buffer management unit includes a monitor data memory that temporarily stores input data, a buffer management unit that specifies the address of a modifier that gives meaning to the input data, and a plurality of one-line buffer memories. a reproduction mode in which the input data is stored in one one-line buffer memory of the plurality of one-line buffer memories corresponding to the decoded address outputted via the decoder, and past input data is reproduced; When the reproduction mode is designated in the mode control section that selectively designates the normal monitor mode, the contents of the 1-line buffer memory corresponding to the address designated in the buffer management section are displayed on the display. 1. A display method for a data input device, characterized in that one of the modifier keys corresponding to the designated address is marked. 2. The display method of the data input device according to claim 1, wherein the mark is displayed by lighting up the modifier key itself or its vicinity.