JPS5844573A - electronic dictionary - 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] This invention relates to an electronic dictionary.

In recent years, electronic dictionaries that can translate Japanese into English or English into Japanese have been devised and put into practical use. The electronic dictionary has a Japanese table and an English table, and each table stores words in correspondence with each other. In this case, for Japanese, 6 to 9 bits are required for each character,
For English, 5 to 8 bits are required for each character. However, in the conventional electronic dictionary mentioned above, the characters of words are stored in a single table formed by ROM (read-only memory), so as the number of words increases, the capacity of ROM increases. . With current technology, s
Since the capacity and cost for one ROM chip are fixed, as the number of constituent bits for each character increases, the number of memory words decreases and the functionality of one product deteriorates.

For this reason, various data compression storage methods have been proposed in order to increase the amount of time that can be stored in the ROM as much as possible. One method is to store one character in 8 vinylia so that it is not stored as character data. There is something like this. As another method, when storing multiple words in a predetermined word order, for example, alphabetically, if the first few characters of the previous word and the first 111% characters of the next word are the same character data (for example, ABO The word 苧T and ABOVI
In the case of a single word, both words have the same character data in the first two character table B), the latter single word is stored with data that combines the remaining character data with a predetermined code ≧ - indicating the same character data. There is something I tried to do.

However, in the former method, substantial data compression cannot be achieved unless a large number of characters represented by the 8-digit character '''om are included in a single character, which is a drawback of poor practicality.Furthermore, in the latter method, , unless there are many identical character data parts, the data compression effect cannot be improved.Furthermore, in both methods, 1, the processing when reproducing data as a single piece is **
＊ To efficiently perform single memory 1
Accordingly, an object of the present invention is to provide an electronic dictionary that can increase the number of words that can be included even with the same ROM capacity.

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a keyboard, and data input from this keyboard 1 is sent to OPυ2. This 0PU2
For example, an external control circuit 21 for controlling external circuits such as an external memory and a bond section, and a control ROM 22% for storing various control program programs include each persimmon register circuit 25 such as M to D registers to be described later. , are connected to each other by a pass line. The control ROM 22 has output buses α and b, outputs the address data of the RAM 23 from the output bus α, and outputs various instructions and its own next address from the output bus b. ◇The control circuit 25 outputs f
It operates according to instructions sent from the t4111ROM 22 via the output bus b, and controls read/write to the RAM 23, addition/subtraction to the arithmetic circuit 24, and control to the external control circuit 21. , FmaIRO
M 22 colors send: h next address and arithmetic circuit 2
4 etc., the next address of the control ROM 22 is specified.

The external control circuit 21 also controls the dictionaries 3a to 3.3 provided outside the 0PU2. d control. These dictionaries 3a to 3It are composed of ROM, and store words to be translated, such as English, Japanese, and candy, in correspondence with each other.The contents of these dictionaries 36 to 3d are controlled by external control The circuit 21 sequentially outputs the data in the 0PU2 and sends the data to be displayed to the display control section 4. This display control section 4 includes a display buffer 41 that temporarily stores data from the dictionaries 3a to 3d, a character generator 42 that generates dot pattern data for the data held in this display buffer 41, and a dot pattern output from this character generator 42. It consists of a display driver 43 that operates the display section 5 according to pattern data. Above display section 5
For example, dots can be created using a liquid crystal display element! It has an F-litas electrode configuration, and characters are displayed using a dot pattern.

Next, the single storage method of the dictionaries 3a to 3d will be explained with reference to FIG.
It shows the state of being In other words, 1 alpha beech is 26
Since it is a character, each character of AlphaPets can be represented by 5 bits. For example, literary m can be represented by ``00000J, m by [0
0001J, O [00010J, D rooollJ
l, l is roolooJ,' is ``0OIOIJ, --...
, Zwort 1001" respectively.

In other words, 1 character table, 1.0, p, expletive, 1, ..., 2
0 corresponding to the decimal numbers 0.1.2.3.4.5, ..., 25, respectively, and when storing English words composed of such characters in the dictionary ROMs 3a to 3d, Each character of the alphabet is divided into the soft upper bit (1 bit) and the remaining 4 bits and stored. In this case, 1, the most significant bit of the 16 characters from M to P is 10"
is represented by the top 10 characters of characters Q~2,
) is represented by 11''. Also, each single shall be composed of a maximum of 8 characters, and a single with less than S8 characters shall be stored with the code [11111J.

The method of storing English words in the dictionary ROMs 3a to 3d will be explained in more detail with reference to FIG. In this case, the area for the first 8 bits contains each letter of the above English word "BODIelFZ", B10,
Data [0000001J is stored in the first to seventh bits of D, IC, IF, and Z(F).

However, there are now seven-letter English words [munon] that are less than eight letters long.
Since myzJ is taken as an example, the above code "11111J" is written in the 8th bit where no character exists. Therefore, in the 8th bit following the above data "0000001J, the upper 'E code rl 1111 J o This English word "AB" is placed in the area for the 8 bits mentioned above.
ODiff! 1iJ17), if the data ro o o
o.

Oll will be stored.

◎Then, for the 8th character, the Seayu code [1ll
The lower 4 bits of data "11jlJ" are stored in the lower 4 bits of 1 and 1J. In this way, in the case of an English word, a total of 40 bits of data, including the first 8 bits of data and the next 4 bits of data x 8 = 3.2 bits of data, is stored. , -Yu.

On the other hand, Japanese monotonous sounds are expressed in four voices in kana characters.

Therefore, since the kana characters are 45 characters from A to A,
Each character can be represented by a 6-pit code. In that case, each kana character is divided into the upper 2 bits and the lower 4 bits, and the dictionary R is divided into the upper 2 bits and the lower 4 bits.
It is obvious that the information can be stored in OM, 3a to 3d. In this case, the beginning of 1m in Japanese is 2 bits x 8 = 1
The 6-bit area and the next 4-bit x 8 = 32-bit area (#4 & pit) are set;
In other words, it is represented and stored as 48-pitz F data.

Next, referring to the 70-chart of 3rd LIi,
) are memorized by the state of the English word “AIt.

The operation of reproducing DIFZJ into an 8-bit code for each character will be explained.

When the playback operation starts, first, the English word "ABoDIIl]Pz stored in any of the dictionaries 110M38 to 3d as shown in FIG. The 1-bit data group ``000000 '1'l'J'' is outputted and set for transfer.

Next, the numerical value "8" is set in the register for the counter in the RAM 23 (step B). Next, through the processing in step SS, the first digit data (character m (data for
oo60J) is transferred. Next, in step 84, the 8-bit ■ data @0'' in the m register and the above data ro 00 in the a register are transferred.
0J is combined with -1・8 of p register in RAM23
(corresponds to the 8th character, i.e., the leading character of the English word, and each digit in the D register is made up of 8 bits). Therefore, the 8th digit of the register is transferred to the character m. The 8-bit code representing ``00000000J'' is stored.The data in the register is decremented by 1 by the next step ss, and the count value becomes 7.Next, step 8
By the process of 6, whether the above count value in the B register is O or not 1
That is, it is determined whether or not the playback operation has ended. Now, the count value is not 0, and the process proceeds to step S1.

In step 81, the 7th digit of the D register is all @11.
data or not, that is, the synthesized data is the above code l”
It is determined whether the data corresponds to IIIJ or not, and the determination result is "MO" and the process returns to step am.

With the above, the 21st m(g) d is written as English single 1i ri B O
From the memory data of "11ya y2", the first character "mu"
This means that we have obtained the code roo000000J for the character "mu". 2 shows the storage state of the D register, that is, the code j00000000J of the character "mu" is reproduced and stored at the beginning (8th digit).

Thereafter, repeat steps 8B, 84, g-18 7 times.
@, 81 IjEi operations are executed, and the 7th to 1st digits of the 2nd-(as shown in the phrase <%I) register contain the reproduced characters of the 2nd to 71st characters of the English word ``5l1OD11FWJ''. The reproduced code and the reproduced code of the code "l 1111" are each stored as 8-bit data.

The above playback data in the D register is then converted into a code most suitable for the system, for example, an A80! During the encode conversion, data (41) (4) is added to the data of each digit of the Lujistar, and the data is subjected to translation processing.

I won't explain about the reproduction of Japanese words, but I will do the same with the above-mentioned English single II! i will be managed.

Note that in the above embodiment, the number of characters in a word is 8, but the number is not limited to this, and may be 4 characters, 16 characters, etc.

As explained above, the present invention is an electronic dictionary equipped with a dictionary memory for storing words, in which a bit group of a predetermined number of bits representing a %1 character is divided into an upper bit side and a lower bit side. The dictionary memory stores the data of the upper bits of each character constituting the word in the order of the characters in the word, and then stores the data of the lower bits of each character. Since an electronic dictionary is provided in which data is stored in the above character order, the number of words that can be stored even with the same 10M capacity is greatly increased, which is extremely advantageous, and character data can also be easily reproduced. Especially av of 4-bit processing and 1-bit processing.
When using V, there are advantages of easy word playback and easy control.

[Brief explanation of drawings]

The 1st vA is FIG. 4t of an electronic dictionary according to an embodiment of the present invention.
It is a flowchart explaining q main operation. 1-...Keyboard, 2...OPU, 31-3d...
- Dictionary 10 M s 4... Display control section, b... Display section.

Claims (1)

[Claims] In an electronic dictionary equipped with a dictionary memory for storing words,
The word is formed by combining a plurality of characters formed by dividing a predetermined number of bits constituting one character into high-order bits and low-order bits, and the dictionary memory stores each character that makes up the word. 5. An electronic dictionary characterized in that data on the upper bit side of a character is stored in the order of the characters in the word, and then data on the lower bit side of each character is stored in the order of the characters.