JPS6087383A - Electronic type language learning machine - 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] [Technical Field of the Invention] The present invention is an electronic language learning system that is controlled by a microcomputer and is capable of easily converting input of alphabetic and kana characters into ASCII character codes or JIS character codes. Regarding machines.

[Prior art]

Conventionally, as for this building, for example, the patent application
There is TI's "Sbeak and Spell J" disclosed in Publication No. 608, but it uses a fluorescent display tube as a display device to display capital letters of the alphabet by combining segments. On the other hand, alphabets are discriminated and lighting position data suitable for the display device is output.

However, when trying to print characters on a display device or printer that has a highly advanced dot matrix structure and can display uppercase letters, lowercase letters, and katakana characters as an output device, the number of display types increases, and it becomes difficult to specify characters. It has become common to use 8-bit data such as ASCII character codes and J/S character codes to represent characters.

The data transfer format between the character font built-in LSI that drives the display device and printing device (f IJ printer) and the microcomputer that is the control controller is also AS.
This is often done using CII character code or JIS character code.

Conventionally, the method of converting alphabets and katakana composed of key matrix into ASCII character code or JIS character code is to judge the character content of the key and ASC
Either perform II or JIS character code conversion using a number of branch programs, or prepare a data table for ASCII or JIS character code conversion on ROM.
The main method used has been to perform conversion.

However, in the former method, there are many branches as the character content of the key increases, the conversion program is complicated, and the program capacity increases extremely, requiring the use of a microcomputer with a large program capacity. No.

Also, according to the latter method, the ROM for the data table
[Summary of the Invention] This invention was made to eliminate the above-mentioned drawbacks of the conventional technology. Alphabetic characters and katakana characters can be easily converted into a key matrix.
We propose an electronic language learning machine that can convert to SCII character code or JIS character code.

[Embodiments of the invention]

Hereinafter, one embodiment of the electronic language learning machine of the present invention will be described based on the drawings. FIG. 1 is a schematic diagram showing the external appearance (11 configurations) of an embodiment of the present invention. In the figure, 1 is a dot matrix LCD display device, 2 is a hard copy printer, and 3 is an operational A mode key is used to instruct the microcomputer about the contents, and 4 is an alphabet key.

FIG. 2 is a block diagram showing the configuration of the electronic language learning machine in this embodiment. The dot matrix LCD display device 1 and the printer 2 are shown in FIG. 1, and 5 is the dot matrix LCD display device. 1, and character data transfer from the control microcomputer 6 is performed using ASCII character codes for alphabets and JIS character codes for katakana characters. A key matrix 7 is connected to the computer 6. This key matrix 7 is based on the mode key 3 and alphabet key 4 in FIG.

Also connected to the microcomputer 6 are a printer control circuit 8, a nonvolatile memory 9 (ROM), and a volatile memo VRAM10 for storing key manual information.

The printer control circuit 8 is for controlling the printer 2, and is configured to print alphabets and katakana by transferring ASCII character codes and JIS character codes as character data. ing. Furthermore, the non-volatile memory 9 is for storing Japanese translation data and the like.

Next, regarding the operation of the electronic language learning machine of the present invention configured as described above, the memory map (hereinafter referred to as RAMMAP) of the volatile memory for storing key manual information shown in FIGS. 3 to 6 will be explained.
This will be explained using the flowcharts shown in FIGS. 7 and 8.

(Figures 3 and 5 are separate schemes) This is a diagram showing the meaning of RAMMAP when IJ Lux rows and connections are made.When a key is pressed, the valley RAMMAP bit goes up (to 1"). Become).

Figures 4 and 6 show the RAMM of Figures 3 and 5, respectively.
In both cases, the keyboard is wired to be AP, and the alphabet 6P# is pressed.

As shown in the flowchart of FIG. 7(b), this RAMMAP write operation is performed every 20 m5ec on each output line Oo.-〇 and input I of the microcomputer 6.

~■, by performing a key scan and sequentially writing into the volatile memory 10 for storing key manual information.

That is, in step T1, a timer interrupt is performed every 20 msec. In step T2, a key scan is performed and the data is written into the volatile memory 10 for storing key manual information (in this case, if the key is pressed, it is "1"). Next, in step T3, the read contents are held.

As a control method for performing ASCII character code conversion, a flow as shown in FIG. 7(a) can be considered. This figure 7 (
In a), starting at step S1, step S
Volatile memo IJ 1 for key human information storage in 2 and S3
A process is performed to determine the presence or absence of the key human power to read the contents of 0, and if it is determined in step S3 that the key human power is present, the process moves to step S4, and if it is determined that the key human power is not available in step S3, the key is Step fS2. until pressed. Step S3 Repeat the loop of i≦ゝ＼.

If it is determined in step S3 that the key is manually operated, each bit of the volatile memory 10 for storing key manually operated information is checked in step S4, and in step S5 whether the mode key 3 or the alphabetical key 4 is used to instruct the operation content. If the mode key 3 is input, an operation according to the mode contents is performed in step S6, and the process proceeds to step S9 to end the operation.

Further, in step S5, in the case of alphabet key 4, it is converted into an ASCII code in step S7, and in step S8, it is converted to an ASCII code on the dot matrix LCD display device 2.
Display contents are transferred to an LCD driver 5 that drives the printer 2, or print contents are transferred to a printer control circuit 8 that controls the printer 2.

In addition, FIG. 7(b) uses the timer interrupt function of the microcomputer 6 itself to generate 20 m s as described above.
The key input situation for each ec is shown in Figure 4t or Figure 6R.
Performs AM@, APK write processing. Microcomputer 6-key key Only the keys required with or without human power are the RAs listed above.
MMAPt check step S2) and process.

In this case, if the IJ rack configuration (key 7) in Figure 2 is as shown in Figure 3, the ASCII code conversion will be ×8 ×
Bit test at address ×, then test bit at address xxxx+1, bit test at address XXXX+2, ×X××
A test was performed on address +3, and since the 6th bit of address xxxx+2 was set, it was necessary to use special processing to determine what this bit corresponded to and convert it into an ASCII code.

Here, the special processing includes a branching method, a conversion table method, and the like.

However, this method requires an increase in program capacity due to branching or a data table LIM.

However, by using the key matrix groove bottom as shown in Fig. 5, the ASCII code conversion process is performed at 70 in Fig. 8.
- Significant simplification as shown in the chart.

That is, in FIG. 8, in step U1, ASCII
The code conversion process is started, and in step U2, a counter is provided as an 8-bit counter in the register or RAM, and (41)I( is set).Next, in step U3, the position of the alphabet "A" is specified. , move to Stella fU4.

In this step U4, the bits are tested starting from the bit of alphapella) rAJ, and by referring to the counter value where 1'' is set (in Figure 6, the 5th bit "P" at address XXXX+2), In step U7), the value becomes an ASCII code, and this state is held in step U8.

This is the alphabet key R from A# to ``z''
It is also helpful that the arrangement on AMAP is continuous.

Also, in step U4, a bit test is performed,
If "1" is not set, the process moves to step U5, the bit to be checked in alphapella) rAJ is updated, the counter value is incremented at step fU6, and the process returns to step U4.

It should be noted that the present invention is not limited to the structure of the embodiments, and it goes without saying that various modifications may be made within the scope of the claims and without departing from the technical concept.

〔Effect of the invention〕

As mentioned above, according to the Gunzi 2 language study plan of this invention,
Provides a hardware element and a volatile memory counter for configuring alphabetic character keys or kana character keys to be arranged and wired consecutively in ASCII character code order and JIS character code order in volatile memory for storing key manual information. , I decided to initialize the counter, sequentially test from the bit of the alphabet rAJ to the bit of rZJ, and when "1" is set, refer to the counter value and use the software code that becomes the ASCI I code. It is now possible to effectively convert ASCII code or JIS code, which has a great practical effect, especially for hand belts or pocketable electronic language learning devices that have limited memory elements. play.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of the external configuration of an embodiment of the electronic language learning machine of the present invention, FIG. 2 is a block diagram showing the configuration of an embodiment of the electronic language learning machine of the present invention, and FIG. Figure 4 is a diagram showing the correspondence between the volatile memory map for key manual information storage and keys in the electronic language learning machine.
Figure 5 shows the memory map data state when "P" is pressed, and Figure 5 shows the correspondence between keys and the memory map of the volatile memory for storing key manual information, which is different from Figure 3. Figure 6 is a diagram showing the memory map data state when the alphabet "P" in the memory map of Figure 5 is pressed, Figure 7 (a)
is a flowchart of the key human processing program, Figure 7 (
b) is a flowchart of key scan using timer interrupt, and FIG. 8 is a flowchart of HASCII code conversion program. 1... Dot matrix LCD display Hl+1.2.
...Plink, 3...Mode key, 4...Alphabet person key-15...LCD driver, 6...Microcomputer, 7...Key matrix, 8.
...Printer control circuit, 9...Nonvolatile memory, 10...Volatile memory for storing key manual information. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Masuo Oiwa Figure 7 Figure 8

Claims (1)

[Claims] An operator input device having a key matrix configuration as an alphabet input means or a kana character input means, or this alphabet input means and a kana character input means, and an ASC
In an electronic language learning machine that has an alphabetic or kana character output device that displays or prints characters according to II character code or JIS character code, and uses a microcomputer to control the keys and the output device, a timer interrupt that the microcomputer has A means of storing information on whether or not all keys have been pressed at regular intervals in a volatile memory for storing key manual information, if necessary, and storing information on whether a key has been pressed or not as necessary A means for reading from the volatile memory for storage, information on whether or not each of the alphabetic character keys or the kana character keys has been pressed is stored in the volatile memory for storing manual information using ASCII.
An electronic language learning machine characterized by having a manual key means arranged and connected so as to be stored continuously in I character code order or JIS character code order.