JPS6077230A - Method for driving light pen of display keyboard - Google Patents

Abstract

PURPOSE:To process plural input modes only by one light pen by connecting an input mode changeover switch, selecting software in a memory and attaining inputs such as key input and bar code input. CONSTITUTION:The input mode is accessed automatically by turning on a power supply of a device, and when the input mode is not changed, a detector 23 (light pen) is pressed to a key input part 21 to detect the position of the key. Provided that when a switch SW-1 of the detector 23 is turned on, a light emitting element 23a is emitted and a display pattern of the key input part is turn on or off with time series to detect the position. When the input mode is to be changed, an input mode selection key (switch 22) is depressed and the input mode software is accessed to a microcomputer to input the data. Thus, the input mode changeover switch 22 is connected and inputs such as key input, bar code input and printing input can be attained to execute the input processing of plural input modes only by one light pen.

Description

DETAILED DESCRIPTION OF THE INVENTION fal Technical Field of the Invention The present invention relates to a light pen driving method for a display keyboard in which the keyboard section is composed of liquid crystal panels.

(bl) Prior Art and Problems A handy input terminal with a display keyboard in which the entire keyboard section is composed of a liquid crystal panel is constructed as shown in Fig. 1. In Fig. 1, 1 is an input key switch, 2
3 indicates a display section, and 3 indicates an input-only light bezel. In other words, as shown in the figure, manual key input was performed using a dedicated light pen, and input modes other than manual key input were performed using other dedicated machines.

Next, referring to FIG. 2, the method of driving the light pen will be explained with reference to the apparatus shown in FIG. 1. In FIG. 2, 5 is a liquid crystal panel, 6 is a CPU, 7 is a RAM for programming, 8 is a ROM for character generation, and 9 is a display controller, and one or more of these components constitute a liquid crystal module. 10 is a detector having a light emitting element and a light receiving element;
Reference numeral 11 indicates a detector controller. Note that the detector controller 11 includes a controller that controls image information, a microcomputer that calculates position information, and a memory that stores position information.

-1 The controller that controls the image information generates regular display data in time series and displays it on the liquid crystal panel, and the microcomputer uses the detector (signal detected by the iron) to
This allows the specified position to be detected.

The liquid crystal panel of the present invention constructed in this way
A method of specifying a position using a specifying device will be explained using FIG. Figure 3 shows the display screen of the liquid crystal panel from X1 to X4 and Y1 to Y.
This is an example in which the rv is divided into 4×4, and the detector 10 at the indicated position lights up two display patterns in time series from t1 to t81.
The position is detected by the signal. That is, at time tl, X1 column Y, at time t2, 1 column X2 column V, t3
At time t4, further X3 column 'Y, and at time t4, further X
Turn on the 4 columns and see which column the detector is in. In the case of FIG. 3, the position is detected in column X4.

Next, from time t5 to t7), start from column X4.

Yt+yn...and one after another, f disappears t! 'itt,
It can be seen that there is a detector at the coordinate point X4 + Y■l.

The device shown in FIG. 1 is difficult to handle because it only has a manual key mode.In the past, there was no single device that could input more than three modes except the manual key mode.

OBJECTS OF THE INVENTION In view of the above drawbacks of the prior art, an object of the present invention is to provide a light pen driving method for a display keyboard that can be operated with a plurality of manual mode Vitta light pens.

(d) Structure of the Invention The object of the present invention is to provide a light pen whose display section and keyboard section are composed of a liquid crystal panel, which has a light receiving and light emitting element, and a controller which generates a specific pattern at regular intervals. A display keyboard 1 is equipped with a code generator that generates a code corresponding to a specified position, a microcomputer that calculates input information Z, and a memory device. Achieved by selecting the software and providing a display key that can be used as a multiple input device such as for manual input, for inputting codes, for inputting printed characters, etc. - Achieved by providing a light pen driving method for the board. EXAMPLES OF THE INVENTION Hereinafter, Example 1 of the method according to the present invention will be described in detail with reference to the drawings.

FIG. 4 shows an apparatus equipped with the method of the present invention, in which 21 is a key power section made of a liquid crystal, 22
The input mode changeover switch (liquid crystal) 23 is a detector (light pen) having a light receiving and light emitting element. As shown in FIG. 4, in the present invention, an input mode changeover switch is provided in the keyboard section of the display keyboard so that the software of the selected mode is called up to the microcomputer to process input data. Note that the light-receiving element of the detector of the present invention is not limited to one element, and may be a one-line sensor or an area sensor. 1.1.1 of the 0" TFC input mode changeover switch is, for example, a key for manual input. , l, one tray for barcodes is set for printing characters, and so on.

FIG. 5 shows a block diagram of the present invention. In Figure 5,
26 is a CPU, 27 is a RAM for programs, 28 is a ROM for character generation, and 29a.

29b represents a display controller, and 30 represents a detector controller. Note that 23 is the light emitting element 2
3a, a detector having a light receiving element 23b.

In the apparatus shown in FIG. 5, when the apparatus power is turned on, the input key mode is automatically called up. If the input mode is not changed, the light pen is pressed against the key input section to detect the key position. However, when the switch 5W-1 of the detector (light pen) 23 is turned on, the light emitting element emits light and the display pattern of the key manual section turns on or off in chronological order to detect the position. When changing the input mode, press the input mode selection key to call software for a different input mode to the microcomputer and input data. The stored data may be processed by connecting to a host machine or may be processed within the device. In the device shown in Fig. 5, (a) the manual mode changeover switch 22 may be located on the light bench side, and (b) the input mode changeover switch does not have to be on the liquid crystal keyboard. )'s switch sw-i may be a manual button switch or a touch switch;
It goes without saying that more than one type may be used. However, detector 2
3 has at least a light-receiving and a light-emitting element.

FIG. 6 shows a basic flowchart illustrating the operation of the apparatus of FIG. Figure) Input mode detection (block 32)
is performed by the input mode changeover switch 22, and the result is displayed on the display 241.

(Block 33) Waiting for this, the key manual unit 21 detects optical data and displays the detected data (Blocks 34 and 35). If there is an error in the detected data, the detection is repeated (block 36), and if there is an error, it is corrected and a decision is made as to whether or not to change the input mode (block 37); if the input mode is not to be changed, the optical Deciding whether or not to continue data detection Figure 7 is a rounded flowchart showing the operation of the device in Figure 5, where input mode fll&-j: indicates key manual mode, (n+ indicates barcode The input mode (II indicates the print character input mode, but the flowcharts for modes ([1 and (ml) are exactly the same.

The input mode (1) is input mode (1).
1. Setting the processing program (block 41), displaying the input mode from the display controller 29a on the display block 42), checking whether the detector switch sw-i is on or not (block 43) 1. display controller 29b After confirming that the light emitting element of the detector is turned on (block 44), the detector light-receiving element detects the input key (block 45) and the detector key is turned on.
is displayed (block 46) and the detection continues.

Input mode (1) 7 input mode (+1
The process differs from that in that after the light emitting element of the detector is turned on (block 54a), the optical data '&RAM 1 is input (block 55a) image search processing is performed (block 5).
6a) The result is shown (block 57a) (, the processing of input mode (1) is exactly the same as the processing of (Ill).

tf+ Effects of the Invention As explained in detail above, according to the present invention, data can be imported into the device in multiple input modes by using both a barcode detector and a key-powered detector, and the device is compact. The effects of the present invention are extremely large as it becomes possible to manufacture light mice at low cost04

[Brief explanation of the drawing]

Figure 1 shows a conventional display keyboard.
As an example, FIG. 2 is a block diagram illustrating the method for driving the detector in FIG. 1. Figure 3 is a diagram explaining the position specification on the liquid crystal panel (LCD panel) in the block diagram of Figure 2;
Fig. 5 is an external view showing an embodiment 4' of a display keyboard according to the present invention, Fig. 5 is a block diagram of a device according to the present invention, and Figs. Flowcharts showing the operation of the device are shown respectively. 〇 Referring to the drawings, 21 is a key manual section, 22 is an input mode changeover switch, and 23 is a detector (light ben). 24 is a certain section, 26 is a CPU, 27 is a RAM, and 28 is an R
OM, 29a, 29b are display controllers,
30 indicates the detector controller bit 2t. Patent applicant Fujitsu Limited Patent agent Akira Aoki 9'f Patent attorney Satsuyuki Nishidate 1) Yukio 7P patent attorney Akira Yamaguchi ■ ■ ■

Claims (1)

[Claims] The display section and the keyboard section are composed of a liquid crystal panel. A light ben that has light-receiving and light-emitting elements, and a controller that generates a specific pattern at regular intervals. A display keyboard 1 comprising a code generator that generates a code corresponding to one specified position, a microcomputer and memory YA that calculates input information,
Select the software in the memory using the switch to select the use mode of the detector. A light pen driving method for an f-display keyboard, characterized in that it is used as a multi-manpower device for keys, barcode input, printing characters, etc.