JPH02100095A - External character registration device - Google Patents

Abstract

PURPOSE:To update registered data automatically and rationally by deleting the oldest registered code among registered external character codes whose use frequencies do not reach a standard use frequency when an external character table comes to have no free area. CONSTITUTION:This device is provided with a use frequency storage means 4 for storing the use frequencies of respective registered external character codes stored in the external character table 1 and a use frequency comparing means 5 which compares the use frequencies of the respective registered external character codes with the preset reference use frequency. Then when the external character table 1 comes to have no free area, an external character registering means 3 deletes the oldest codes among the registered external character codes whose use frequencies do not reach the reference use frequency with the output signal of the use frequency comparing means 5 and registers a new external character. Consequently, the registered external character which is no important is selected and deleted to register a new external character.

Description

[Detailed Description of the Invention] [J! E Required] When the number of registered characters becomes overwhelming with respect to the character registration devices used in computers, word processor printers, and other equipment, especially with respect to the character registration devices that can automatically update the registered contents. The purpose of this system is to efficiently select and delete unimportant registered characters and register new characters, and to memorize the frequency of use of each registered character code registered in the character table. A usage frequency storage means and a usage frequency comparison means for comparing the usage frequency of each registered external character code with a preset standard usage frequency when the external character table runs out of free space are provided, and the free space is no longer left in the external character table. Sometimes, the output signal from the frequency of use comparison means causes the private character registration means to delete the oldest registered private character code among the registered private character codes whose usage frequency does not reach the standard usage frequency, and register a new private character. Configure.

[Industrial Application Field] The present invention relates to a custom character registration device used in computers, word processors, screen printers, and other devices, and in particular, to a custom character registration device that can automatically update registered contents. It is related to the device.

Generally, there is a limit to the number of characters that a printer or other device can hold. Therefore, when it is necessary to use special characters (external characters), an external character registration device is provided that allows users to individually register and use the external characters.

However, there is a limit to the number of characters that can be registered with such a non-standard character registration device, so when the non-standard characters are registered all at once, it is necessary to delete the non-registered non-standard characters that are considered relatively unnecessary and register new non-standard characters. There is a need to do. Since manually deleting such registrations and registering new ones is time-consuming, recent external character registration devices have been designed to automatically update the registered contents when a large number of external character registrations have been completed. I have to.

[Prior Art] There are two types of external character registration devices that automatically update the registered contents.In the past, when there was a rush to register external characters, the oldest registered characters were registered first. The registration had been deleted. However, this has the inconvenience that even frequently used bold characters are deleted when their turn comes and must be re-registered.

Therefore, as shown in Japanese Patent Application Laid-Open No. 61-97739, for example, the number of times a registered non-standard character has been used is stored, and when the non-standard character registration is full, the registration of the non-standard character used the least number of times is deleted. I was doing it.

[Problem to be solved by the invention] However, since it is normal that the more recently registered characters are used, the fewer times they are used, so simply deleting the characters that have been used least often will eliminate the newly registered characters, even if they are relatively important. It has the disadvantage that it is easy to delete, and old registered non-registered characters are difficult to delete even if they are not important.

Also, to select the least frequently used character,
Since the number of uses of all registered external characters must be compared each time they are registered, this process takes time, and if the registered capacity is large, there is a disadvantage that the processing speed will be significantly delayed. .

This invention solves such conventional drawbacks, and makes it possible to efficiently select and delete unimportant registered characters and register new characters when registration of custom characters becomes overwhelming. The purpose of this invention is to provide a user-defined character registration device.

[Means for Solving the Problems] In order to achieve the above object, the non-standard character registration device of the present invention, as shown in FIG. A private character font memory 2 stores a font pattern corresponding to a registered private character code, and when a private character code is input together with a registration instruction signal, the private character code is registered in the private character table 1 and corresponds to the private character code. In the external character registration device, the external character registration means 3 stores a font pattern to be registered in the external character font memory 2, and the usage frequency storage means 4 stores the frequency of use of each registered external character code registered in the external character table 1. , a usage frequency comparison means 5 is provided for comparing the usage frequency of each registered external character code with a preset standard usage frequency when there is no empty area in the external character table 1; When the usage frequency comparison means 5 runs out, the external character registration means 3 deletes the oldest registered external character code among the registered external character codes whose usage frequency does not reach the standard usage frequency, and creates a new one. It is characterized by registering external characters.

[Function] When there is no free space in the external character table, the usage frequency of each registered external character code is compared with a preset standard usage frequency, and registration is performed among the registered external character codes whose usage frequency does not reach the standard usage frequency. The oldest one is deleted and a new external character is registered.

Therefore, it is not necessarily the least frequently used item that is deleted, but a newly registered item that is less frequently used but is less likely to be deleted.

[Example] An example will be described with reference to the drawings. This embodiment is an example in which the present invention is applied to a printer such as a computer.
The present invention is not limited to this example, but the CR
The present invention may be applied to T and other output devices, or to the main body of the device such as a computer or a word processor.

FIG. 2 shows the configuration of an embodiment of the present invention.
Reference numeral 11 indicates an M unit of the printer; 2 is a control microprocessor (MPU); 13 is an input/output unit for signals to and from a host device such as a computer or word processor (not shown), and a printing unit 14 of the printer; The input/output interface 15 is a character generator that generates a font pattern of standard characters such as JIS Level 1, and a font pattern corresponding to the character code of the standard characters input from the post equipment. Output.

MPU12 has ROM1B,! - RAM 17 is connected, and software for controlling the operation of MPU 12 is stored in ROM 16. In RAM17,
A private character table 1 for registering private character codes, a private character font memory 2 for storing font patterns corresponding to the private character codes registered in the private character table 1, and the like are formed.

FIG. 3 shows the contents of the external character table l.

In this embodiment, the external character table l includes a 2-byte table address field 1a and a 2-byte external character code registration field 1b for each character, forming a pair, and the table address field 1a includes 0 to n. Addresses are recorded. Therefore, n+1 external characters can be registered in this table, and the number is, for example, 200.

Additionally, the external character table 1 is also provided with a usage frequency storage section 4 of 1 byte each for storing the usage frequency of the registered external character code.
X2...) is stored here. Furthermore, the total number of uses of all registered non-character codes ΣX is stored.

The external character registration means of the above embodiment operates as follows when the external character code is input from the post device.

5 to 8 are flowcharts of the external character registration process of this embodiment. S indicates a step.

When an external character code is input together with a command from the host 141 at SL, it is determined at s2 whether the command is a registration instruction signal instructing registration.

If the input external character code has already been registered in the external character table 1, the host device will not output a command to instruct registration. Therefore, in that case, step S21
Then, 1 is added to each of the number of uses X■ of the corresponding private character code and the total number of uses ΣX, and in S22, the font pattern corresponding to that private character code is output from the private character font memory 2 to the printing unit 14, and the process ends. do.

If it is determined in 52 that the command input in sl is an instruction for registration, it is determined in s3 whether or not the external character table 1 is empty.

If there is an empty space in the private character table l, in S23, the table address next to the last registered private character code is
A new external character code is registered, and at the same time, the font pattern corresponding to the external character code is loaded from the host device and stored in the external character font memory 2, and the process ends. At this time, x=0 is recorded as the number of uses of the newly registered external character code.

In S3, if there is no space in external character table 1, in S4,
The standard usage frequency coefficient is read with the final address number n of the external character table and the total number of usages ΣX. It may be set, or it may be set on the host device and input at 51 along with commands.

Then, in S5, the average number of uses A for each registered non-character code is calculated by A=Σx/(n+1).

Next, in S6, the counter i is set to i=0, and in S7, the usage port a of the external character code of table address O is first set.
o is read and compared with the standard usage port ak meeting A in S8.

If the number of uses XQ of the external character code is not less than the reference number of uses -A, it is determined in S9 whether i=n. If i is not equal to n, add 1 to i using sho and return to S7. Then, in S7, the number of uses of the external character code at table address 1 is read, and S8
Compare with -A to the reference number of uses.

In this way, in step S7, i is incremented by 1 and the flow up to slO is repeated until a custom character code whose number of uses does not reach the reference number of uses -A is found.

In S8, the number of times the external character code of table address i is used is
If l is determined to be less than the standard number of uses, s
ll deletes the external character code and number of uses for that table address. At the same time, the font pattern corresponding to the non-standard character code is deleted from the non-standard character font memory 2.

As a result, among the registered external character codes whose frequency of use does not reach the frequency of usage, the oldest registered one is deleted.

Next, in S12, as illustrated in FIG. ), a new custom character is registered, and at the same time, the font pattern corresponding to the custom character code is loaded from the host device and stored in the custom character font memory 2. Then, in S14, X.

−〇, subtract the Xi deleted by sll from ΣX, and finish.In addition, if the usage frequency of all registered external character codes is higher than the standard usage frequency, when i=n in S9, the table address is set in S24. The registration of O is deleted, all remaining registered addresses are raised one by one in S25, and a new custom character is registered in the last address n of the custom character table 1 in S26. At the same time, the font corresponding to that custom character code is registered. A pattern is loaded from the host device and stored in the external character font memory 2. In other words, if the frequency of use of all registered non-standard character codes is equal to or higher than the reference frequency of use, so-called first-in first-out processing is performed.

Then, in S27, set xy = 0, and from ΣX, S24
Subtract the XQ deleted in step and exit.

[Effects of the Invention] According to the external character registration device of the present invention, when there is no free space in the external character table, the oldest registered external character code whose usage frequency does not reach the standard usage frequency is deleted. Therefore, relatively recently registered external characters are difficult to be deleted even if they are not used frequently, and the registration is updated automatically and rationally, which has an excellent effect.

In addition, if a character that does not reach the standard usage frequency is found, there is no need to perform any further calculations, so there is no need to compare the usage frequency of all registered external characters every time they are registered, and the processing speed is also improved. It has the effect of becoming faster.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the configuration of the present invention, Fig. 2 is a block diagram of an embodiment of the present invention, Fig. 3 is a diagram showing the contents of the external character table of the embodiment, and Fig. 4 is an example of the external character registration process. The explanatory diagrams and FIGS. 5 to 8 are flowcharts of the external character registration process. In the figure, 1: External character table, 2: External character font memory, 3: External character registration means 2, 4: Usage frequency storage means, 5: Usage frequency comparison means.

Claims (1)

[Claims] A private character table (1) for registering private character codes, and a private character font memory (1) for storing font patterns corresponding to the private character codes registered in the private character table (1).
2) When a private character code is input together with a registration instruction signal, the private character code is registered in the private character table (1), and the font pattern corresponding to the private character code is stored in the private character font memory (2). External character registration means (3)
), a usage frequency storage means (4) for storing the frequency of use of each registered custom character code registered in the custom character table (1); When it's gone,
A usage frequency comparison means (5) is provided to compare the usage frequency of each registered external character code with a preset standard usage frequency, and when there is no empty space in the external character table (1), the usage frequency comparison means ( 5), the output signal from
The private character registration means (3) is characterized in that the oldest registered private character code among the registered private character codes whose usage frequency does not reach the standard usage frequency is deleted and a new private character is registered. Device.