KR970003663B1 - Correction method of mis-type character for type writer - Google Patents

Abstract

The present invention discloses a manual correction method for an electronic typewriter that can correct manually and repeatedly characters erroneously typed without reinput of keys of characters to be corrected. This method includes the steps of starting a manual correction mode in response to a manual correction key input; storing corresponding character keys in response to input of character keys corresponding to characters to be corrected and checking key input; correcting corresponding characters and checking key input; moving a carriage forward by a minimum driving range responsive to input of space key and checking key input; moving the carriage backward by a minimum driving range in response to a back space key input; conveying the paper forward by a minimum driving range in response to an index key input and checking key input; moving the paper backward by a minimum driving range in response to an inverse index key input and checking key input; and completing a manual correction mode in response to a completion key input.

Description

Manual Modification Method of Electronic Typewriter

1 is a block diagram of a general electronic typewriter to which the present invention is applied.

2 is a flowchart illustrating a manual modification control process according to the present invention.

The present invention relates to a manual correction method for an electronic typewriter, and more particularly, to a manual correction method for repetitive manual correction without re-input of a character key to be modified during manual modification.

In general, it is difficult for a user to know the correct position on a sheet of paper when the user wishes to manually correct the printed characters on the electronic typewriter. Accordingly, the user roughly estimates the correct position and inputs a character key to be manually corrected. Therefore, you must repeatedly type the character key to be modified until you actually finish the modification.

As described above, in the related art, there is an inconvenience of having to repeatedly input a character key to be modified during manual modification.

Accordingly, an object of the present invention is to provide a manual correction method that can be corrected by repeated manual correction by one character key input even when the correct position is not known accurately during manual correction.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram of an electronic typewriter, which includes a keyboard for generating key data according to a key input and a central processing unit 20 for overall control of the electronic typewriter according to key data from the keyboard 10. And a carriage driver 30 for driving a carriage under control of the central processing unit 20, and a platen driver 40 for driving a platen under control of the central processing unit 20. And a ribbon drive unit 50 for transferring a ribbon under control of the central processing unit 20, and a daisy wheel drive unit 60 for driving a daisy wheel under control of the central processing unit 20. ), A ROM (70) for storing the execution program of the central processing unit 20, and a RAM (RAM) for temporarily storing the processing data and key data of the central processing unit 20.

2 is a flow chart illustrating a manual modification control process according to the present invention, a mode setting process of starting a manual modification mode in response to a manual modification key input, and storing a corresponding factor key in response to a printing key input corresponding to a modified character. Printing process of printing the key after checking the key input, and modifying by printing the stored printing key in response to the execution key input, and the modification execution process of checking the key input after transferring the modified ribbon by one step, and the set moving key input And a mode shifting process of checking a key input after moving the corrected position in response to the step, and a mode releasing process of terminating the manual correction mode in response to an end key input.

In FIG. 2, the position shift process includes a first carriage shift process in which the carriage is moved one step to the right in response to a space key input and a key input is checked, and a carriage is responded in response to a back space key input. The second carriage moving process of checking the key input after moving 1 step to the left, and driving the platen in response to the index key input, conveying the paper one step to the bottom, and then feeding the first paper to check the key input. And a second paper transfer process of driving the platen in response to a reverse index key input to transfer the paper one step to the bottom and then inspecting the key input.

Hereinafter, an operation example of the present invention will be described in detail with reference to FIGS. 1 and 2.

First, among the keys generally provided in the keyboard 10 of FIG. 1, a manual modification key, a printing key, an execution key, and an ending key are used for manual modification of the present invention. As a moving key, a space key, a back space key, an index key, Use the reverse index key. The manual modification key is used as a key to start manual modification mode, the argument key is a general character key and the key corresponding to the character to be modified, the execution key is used as a key to execute the modification, and the space key is used to move the carriage forward. When used as a key to move the minimum driving range, the back space key is used to move the carriage as the minimum driving range in the reverse direction, and the index key is used as a key to move the platen as the minimum driving range in the forward direction. The index key is used to move the platen in the reverse direction to the minimum driving range, and the end key is used to exit the manual modification mode. It is assumed here that the forward direction of the carriage is the right direction with respect to the paper and the reverse direction is the left direction. In addition, it is assumed that in the moving direction of the platen, the forward direction is a direction for transporting the paper to the bottom and the reverse direction is a direction for transporting to the top. The minimum driving range of the carriage and the platen is assumed to be one step of each drive motor.

When the power is turned on, the CPU 20 performs a key scan on the keyboard 10 in step 201 to check key input. At this time, if a manual correction key is input from the keyboard 10, it recognizes it in steps 202 and 203 to start the manual modification mode of the present invention. That is, in response to the manual modification key input, the key scan related to the manual modification mode is checked by performing the kiss scan in step 204.

If there is a key input in step (204), it is checked in step 205 whether the printing is a key input. If the print key input corresponding to the modified character is input in step 205, the key data of the print key is stored in the RAM 80 in step 206, and then the procedure goes to step 204 to check the key input again.

If it is not the print key input in step (205), it is checked in step (207) whether the execution key is input. At this time, if the execution key input, according to the key data stored in the RAM 80, controlling the daisy-wheel drive unit 60 to modify the letter corresponding to the printing key, and in step (209) to control the ribbon drive unit 50 modified ribbon After moving to step 1 and preparing for the next modification, proceed to step (204) and check the key input again.

If the execution key is not input in step 207, it is checked whether the key is input in step 210. At this time, if the space key input, the carriage driving unit 30 is controlled in step 211 to move the carriage to the right by one step, and then proceeds to step 204 to check the key input again. If the space key is not input in step 210, it is checked whether the back space key is input in step 212. At this time, if the back space key input, the carriage driving unit 30 is controlled in step 213 to move the carriage to the left by one step, and then proceeds to step 204 to check the key input again.

If it is not the back space key input in step 212, it is checked whether index key input is performed in step 214. In this case, if the index key is input, the platen driving unit 40 is controlled in step 215 to drive the platen to transfer the sheet to the bottom by one step, and then the process proceeds to step 204 to check the key input again. If it is not the index key input in the step (214), it is checked whether the reverse index key input in the step (216). In this case, if the reverse index key is input, the platen driving unit 40 is controlled in step 217 to drive the platen to transfer the sheet to the top by one step, and then proceeds to step 204 to check the key input again. .

If it is not the reverse index key input in step 216, it is checked in step 218 whether it is an end key input. At this time, if the end key is input, the manual modification mode is terminated. If the end key is not input, the process proceeds to step 204 to check the key input again.

Therefore, correct manual modification is done by inputting the printing key only once, specifying the modification position with the space key, back space key, index key, and reverse index key, and repeatedly modifying it with the execution key.

As described above, the present invention has the advantage that it can be corrected by repeated manual correction by one character key input even when the correct position is not known at the time of manual correction.

Claims (5)

In the manual type correction method of an electronic typewriter, a mode setting process of starting a manual mode in response to a manual modifier key input, and a factor for checking a key input after storing a corresponding factor key in response to a factor key input corresponding to a modified character. A key storing process, a modified execution process of checking the key input after correcting the corresponding character by printing the stored factor key in response to the execution key input, and checking the key input after the corresponding moving position of the corrected position in response to the set movement key input. And a mode releasing process of terminating the manual correction mode in response to an end key input. The method of claim 1, wherein the correcting step includes transferring the modified ribbon after the first step. In the manual type correction method of an electronic typewriter, a mode setting process of starting a manual mode in response to a manual modifier key input, and a factor for checking a key input after storing a corresponding factor key in response to a factor key input corresponding to a modified character. A key storing process, a modified execution process of checking a key input after modifying the stored character key in response to an execution key input, and moving a carriage forward by a minimum driving range in the forward direction in response to a space key input, and then key input. A first carriage moving step of checking a key, a second carriage moving step of checking a key input after moving the carriage in a reverse direction in response to a back space key input, and minimizing a paper in a forward direction in response to an index key input. The first paper transfer process that checks the key input after moving by the driving range, and the minimum drive in the reverse direction in response to the reverse index key input. The manual modification method which comprises a two mode release process of the sheet feeding process, and, in response to the end key to terminate the input mode to manually modify the above test after a key input fed by. 4. The manual modification method of claim 3, wherein the modification execution includes transferring the correction ribbon after the correction. The manual correction method according to claim 4, wherein the minimum driving range is set to one step.