JPS5834849B2 - data input device - Google Patents

Description

[Detailed description of the invention] The present invention relates to an input device for an electronic computer.

More specifically, the present invention relates to a tablet-type input device.

Recently, pen-touch type tablet input devices have been used as multi-item input boards for inventory management machines, medical counter devices, etc. (FIG. 1).

When an item (for example, a drug name) is specified with a pen, the specified item can be confirmed by displaying it on a CRT display or printing it out.

However, these methods increase the cost of the device.

For this reason, conventionally, light-emitting elements such as light-emitting diodes are arranged in a matrix, and these are scanned and blinked at intervals of several tens of milliseconds, and after an input pen detects an instruction item, the corresponding light-emitting element continues to light up. Methods have been taken to do this.

However, in this method, the wavelength of light for input pen detection,
Since the wavelength of the display light is the same, manual pen detection and display cannot be performed at the same time.

Therefore, check the display each time you enter an item,
Then, the display must be turned off and the next manual action must be performed, a process repeated.

On the other hand, there is a desire from operators to confirm several items after inputting them.

Separately, when designing dot-type characters, you can display a single character using light-emitting elements arranged in a matrix (see Figure 2). Alternatively, there is a desire to turn off the light and design text.

In other words, as computer phototypesetting machines and kanji printers became popular,
When designing thousands of dot-patterned Kanji characters in a short period of time, or when a user is running a printer, a special Kanji pattern is not available in the system and must be designed immediately. The need has arisen for this to be the case.

For example, many people's names have special characters, and it is often necessary to design kanji on the spot when printing addresses or registering residents.

At this time, as in the past, the wavelength of light for human pen detection,
If the wavelength of the display light is the same, a tablet with the conventional concept cannot handle the problem.

An object of the present invention is to improve the functionality of a tablet-type input device.

More specifically, the purpose of the present invention is to improve the monitoring function in a multi-item manual device function, and to provide a good monitoring mechanism in a device that manually manufactures character patterns while monitoring dot patterns such as Chinese characters. .

In the present invention, a light emitting diode that emits light of different wavelengths is embedded in the position where one item is displayed, and the light of one side of the light emitting diode is used to detect the input pen, and the light of the other wavelength of the light emitting diode is used for displaying. It is intended to be used for

For example, the former may be a gallium arsenide (GaS) PN junction diode that emits infrared light (wavelength of approximately 960 nm), and the latter may be a red visible light (wavelength of approximately 650 nm).
) can be considered as a gallium arsenide phosphorous (GaSP) light emitting diode.

In this case, the manual pen is for infrared detection. FIG. 3 shows an embodiment of the present invention.

3. 1 is a tablet board, and 2 is a human-powered pen for detection.

3 is an item indicated with a pen.

FIG. 4 is an enlarged cross-section of item 3.

4 is a dial, on which the names of items (for example, medicines, place names, etc.) are displayed.

5 is, for example, a GaAs light emitting diode for detecting an input pen.

6 is a GaAsP red light emitting diode for display, for example.

As explained in the conventional example, the diodes 5 are turned on one after another at the item positions arranged in a square IJ box shape, and by detecting this with the input pen, the position coordinates of the detected item positions are detected, and this is used for code conversion. and input.

On the other hand, the diode 6 at the position of the detected coordinates is lit,
The operator is informed that the position information has been manually input.

In the present invention, the characteristics of the light receiving part of the input pen are selected so that it detects only light of the wavelength of the diode 5,
The lighting of the display diode 6 does not interfere with the detection of the human position coordinates.

Therefore, any display method may be used, such as keeping the display diode 6 lit until the next input is received, or keeping two or more input positions displayed.

FIG. 5 shows yet another embodiment, and the difference from FIG. 4 is that in FIG. In the figure, the light emitting area of the light pen detection light source is large.

That is, in the past, when a light emitting diode was used to detect a light pen, since it was a point light source, it was very troublesome to adjust its position.

Therefore, in the present invention, an upper double phosphor T (for example, an infrared-visible conversion phosphor, a ytterbium-erbium-activated sodium yttrium sootide phosphor, NaY) 4 is attached to the light-emitting diode bezel 1. :Y b ”+E
r”).

With this configuration, when the GaAsP red light emitting diode 6 is turned on, this light emitter emits red light.

Further, when the GaAs infrared light emitting diode 5 is turned on, the emitted infrared rays are emitted as visible light for edge color (wavelength: about 541 nm) by the infrared-visible conversion phosphor.

If you use a light pen that detects green visible light, the light emitting body is a dog phosphor, so it is easy to detect and the position of the light emitting body can be easily adjusted.

As described above, in the present invention, a data input device is provided with a light emitting element that can separately emit two lights of different wavelengths at one input position, one for sensing a human pen, and the other for monitoring the input position. , the next input can be made while being monitored, improving operability.

Note that the light-emitting element may be a pair of two light-emitting diodes sealed together, as shown in this embodiment, or a pair of two light-emitting diodes sealed separately.

[Brief explanation of drawings]

Fig. 1 is a diagram showing an overview of a multi-item manual device, Fig. 2 is a diagram showing an example of a kanji font, Fig. 3 is a diagram showing an embodiment of the present invention, and Fig. 4 is an example of a light emitting element of the present invention. Figure 5 showing
The figure is a diagram showing another example of the light emitting element of the present invention. 1: Tablet board, 2: Human pen, 3: Input position, 4:
Dial, 5, 6: Light emitting diode, T: Fluorescent body.

Claims (1)

[Scope of Claims] 1. A plurality of sets of light emitting elements each having a different emission wavelength are arranged in a matrix, one light emitting element of each set is turned on sequentially for detecting an input position, and the other light emitting elements are turned on in order to detect an input position. A data human power device characterized in that one light emitting element is configured to light up to indicate a human power position where human power is detected. 2. The data human-powered device according to claim 1, wherein the set of light emitting elements is made up of a plurality of light emitting elements sealed together and covered with a phosphor.