EP0345088A2 - Zeichenverarbeitungsvorrichtung - Google Patents

Zeichenverarbeitungsvorrichtung Download PDF

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Publication number
EP0345088A2
EP0345088A2 EP89305597A EP89305597A EP0345088A2 EP 0345088 A2 EP0345088 A2 EP 0345088A2 EP 89305597 A EP89305597 A EP 89305597A EP 89305597 A EP89305597 A EP 89305597A EP 0345088 A2 EP0345088 A2 EP 0345088A2
Authority
EP
European Patent Office
Prior art keywords
character
input
recording
delete
key
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89305597A
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English (en)
French (fr)
Other versions
EP0345088B1 (de
EP0345088A3 (en
Inventor
Tetsuya Kawanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Publication of EP0345088A2 publication Critical patent/EP0345088A2/de
Publication of EP0345088A3 publication Critical patent/EP0345088A3/en
Application granted granted Critical
Publication of EP0345088B1 publication Critical patent/EP0345088B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/26—Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling
    • B41J29/36—Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling for cancelling or correcting errors by overprinting

Definitions

  • the present invention relates to a character processing apparatus and, more particularly, to an electronic typewriter in which recorded characters or the like can be deleted on a word unit basis.
  • a conventional electronic typewriter has a printing apparatus and a keyboard input apparatus.
  • the keyboard input apparatus has various kinds of function keys such as character input keys, space key and back space key to feed a printer head to the right and left in the horizontal direction, return key, index key, and reverse index key to feed a recording paper upward and downward in the vertical direction, delete key to delete recorded characters or the like when they were erroneously input or the like, etc.
  • the electronic typewriter has been electronized more and more.
  • an electronic typewriter having the back trace function in which by storing recorded characters or the like into memory means such as memory or the like, a printer head is returned to a plurality of preceding lines of the recorded characters or the like on a character or word unit basis.
  • an electronic typewriter having the word delete function in which characters or the like recorded in the same line are deleted on a word unit basis.
  • Fig. 13B SP denotes a space key and RTN indicates a return key.
  • RTN indicates a return key.
  • the first method of correction is shown in Fig. 14A.
  • the printer head is moved from y to y′ in in Fig. 13A by returning the recording paper by a predetermined amount by performing the reverse index key input (RIX).
  • RIX reverse index key input
  • SP space key input
  • DEL delete key input
  • the second method is shown in Fig. 14B and is applied to the case of the apparatus having the back trace function mentioned above.
  • the printer head is moved from y to z in Fig. 13A by performing the back trace key input (BTR).
  • the recorded characters ".”, “R”, “E”, and “T” are deleted by executing the delete key input (DEL) four times in a manner similar to the above.
  • characters "I”, "T”, “E”, “R”, and ".” are retyped. In this manner, the correction is executed.
  • the third method is shown in Fig. 14C and is applied to the case of the apparatus having the word delete function mentioned above.
  • the printer head is moved to z in Fig. 13A by performing the back trace key input (BTR).
  • BTR back trace key input
  • "TYPEWRTER.” are all deleted by executing the word delete key input (WDEL) and "TYPEWRITER.” are retyped. In this manner, the correction is executed.
  • the third method since the number of deleting times of the recorded characters is large, the operating time which is required for deletion, a use amount of a deleting ribbon, a use amount of a recording ribbon when retyping, and the like increase. Thus, there are drawbacks such that the correcting time (throughput) increases and the running cost also increases.
  • the present invention is made in consideration of the foregoing conventional example and it is an object of the invention to provide a character process­ing apparatus in which the reduction in running cost and the improvement in throughput in the word deleting operation can be realized and the operability regarding the word deletion is improved.
  • Fig. 1 is an external view of an electronic typewriter as a character processing apparatus to which the invention can be applied.
  • reference numeral 1 denotes a keyboard on which character input keys and various kinds of function keys are arranged. Print data and various kinds of instruction data are input by the keyboard 1.
  • Reference numeral 2 denotes what is called a daisy wheel printer mechanism.
  • a carriage 4 on which a printer head 3 is mounted can be moved in the longi­tudinal direction of a platen by a carrier motor (not shown).
  • the carriage 4 has a wheel motor (not shown) which can select a desired type by rotating a type wheel 5 and a feed motor (not shown) to take up a print ribbon and a correction ribbon by predetermined amounts.
  • the printer head 3 has a hammer (not shown) to print onto a paper through an ink ribbon by hitting the back surface of a desired type.
  • Reference numeral 6 denotes a platen around which is a paper 7 is wound and which is rotated by a paper feed motor (not shown) or the like and feeds the paper.
  • the platen 6 also functions as a recording base to receive the shock of the type by the hammer.
  • the printer mechanism 2 in the embodiment is operated by a control circuit, which will be explained hereinlater.
  • Fig. 2 is a control block diagram and Fig. 3 shows a detailed construction of a control logic circuit 11 in Fig. 2.
  • the control logic circuit 11 comprises an MPU (microprocessing unit) 30, an ROM (read only memory) 31, an RAM (random access memory) 32, a timer 36, and the like. These components are connected by an MPU bus.
  • MPU microprocessing unit
  • ROM read only memory
  • RAM random access memory
  • the MPU 30 executes the arithmetic operation control in accor­dance with micro instructions which have previously been stored in the ROM 31, receives the key input information from an input control circuit 9, and executes the input/output control with a print control circuit 13.
  • the timer 36 Under the control of the MPU 30, the timer 36 generates reference time information, measures the elapsed time, generates an interruption request (INT) according to the time control condition, or controls the control logic circuit 11 in a real-­time manner.
  • INT interruption request
  • the RAM 32 has work areas such as area for a key buffer 34 to temporarily store the key information input from the keyboard 1, area for a correction buffer 33 to store the characters or the like which were displayed and/­or recorded, area for a buffer 35 of a pointer 37, a space amount 38, an E-flag, and R-flag, and a register which are necessary for the program control, and the like.
  • the input control circuit 9 retrieves the input state of the keyboard 1 every predetermined period (5 msec) through a keyboard control line 8 by using the timer 36 and the like. When a key input is detected, the position on the matrix where the input key exists is examined and is converted into the microcode or the like.
  • the key input data is supplied to the MPU 30 through an input interface 10.
  • the MPU 30 analyzes the key input data and stores into the key buffer 34 in the RAM 32.
  • the key buffer 34 has what is called a ring buffer structure and has the FIFO function.
  • the MPU 30 When the key input data is stored in the key buffer 34, the MPU 30 sequentially reads out the key input data and discriminates whether the input key is the character key or one of the various kinds of function keys. If the input key indicates the printing operation or the like, the MPU 30 controls the operation of actuators such as carrier motor, wheel motor, and the like mentioned above through the print control circuit 13 comprising a motor driver and the like and makes the printer mechanism 2 operative, thereby executing the print control such as printing of a desired character, deletion of the character, or the like. To enable the characters to be automatically deleted by executing the delete key input or word delete key input, the printed characters and the like are stored into the correction buffer 33.
  • actuators such as carrier motor, wheel motor, and the like mentioned above
  • the print control circuit 13 comprising a motor driver and the like and makes the printer mechanism 2 operative, thereby executing the print control such as printing of a desired character, deletion of the character, or the like.
  • the keyboard 1 comprises character keys 40 and various kinds of function keys and the like. By pressing the character key 40, the character written on the upper surface of the key depressed can be input and printed.
  • Reference numeral 41 denotes a space key to input a blank between words or to instruct to shift the carriage 4 to the right; 42 indicates a back space key to instruct to shift the carriage 4 to the left; 43 a delete key to instruct to erase the nearest printed character; 44 a word delete key to indicate to delete the nearest printed characters on a word unit basis; and 45 a code key to instruct to extend the function.
  • the depressed function key or character key functions as a sole function key. Therefore, many functions can be added without increasing the number of keys to the typewriter keyboard.
  • Reference numeral 47 denotes a return key to instruct the carriage return and 46 indicates a shift key to instruct the switching between the capital letter and the small letter and between the numeral and the symbol. On the other hand, the shift key 46 can further instruct many functions in association with the code key 45.
  • the printed character storage control is executed by using memory means such as correction buffer 33, buffer 35, and the like in the RAM 32.
  • the buffer 35 has memory areas for the pointer 37 and space amount 38.
  • Fig. 5A is a diagram for explaining the states of the correction buffer 33 and pointer 37 upon initiali­zation by the power-on of the apparatus or the like.
  • n indicates a head address in the correction buffer 33 in the RAM 32 and m represents an area size in the correction buffer 33.
  • a buffer start code (BG) indicative of the head in the correction buffer 33 is stored into address n.
  • a buffer end code (BE) indicative of the end in the correction buffer 33 is stored into address n+(m-1), that is, the end address in the correction buffer 33.
  • n is set into the pointer 37 to make the data from address n+1 to address n+(m-2) invalid.
  • the data from the address indicated by the pointer 37 to the buffer end code (BE) is handled as invalid data.
  • Fig. 5B shows the result in which "I”, “T”, “space key”, ... were sequentially input by the keyboard 1 of the apparatus and printed and output.
  • Fig. 5C shows the states of the correction buffer 33 and pointer 37 at that time. The character printing and the storage of the printed characters will now be described.
  • the correction buffer 33 and pointer 37 are set into the foregoing states.
  • the space amount 38 is set to "0".
  • the printer head 3 is located at a in Fig. 5B.
  • the printer mechanism 2 is made operative and "I” is printed at the position a in Fig. 5B on the recording paper 7.
  • the printer head 3 is shifted by a predetermined amount and is located at the position b in Fig. 5B.
  • the pointer 37 is advanced by (+1).
  • the character code "I” is stored in address n+1 in the correction buffer 33.
  • a feed amount of the printer head 3 is stored into the space amount 38.
  • the space amount indicates the distance from "T” to "I”.
  • the pointer 37 is advanced to n+4.
  • the character code "I” is stored into address n+4.
  • the feed amount of the printer head 3 after "I” was printed is set into the space amount 38.
  • the control similar to the above is executed in accordance with the order of "S", "space”, “T”, “H”, “E”, "space”, “K”, .
  • the carriage return is executed and the printer head 3 is moved to the position d in the diagram.
  • the pointer 37 is advanced to n+33.
  • the space amount 38 is subtracted from the absolute position information of the printer head 3.
  • the resultant value is stored as a position code (CP) into address n+33.
  • the pointer 37 is advanced to n+34.
  • the line end code is stored into address n+34.
  • the space amount is set to "0".
  • the printed characters are stored, thereby making the result of the printing shown in Fig. 5B correspond to the correction buffer 33 shown in Fig. 5C.
  • the pointer 37 indicates address n+34 in the correction buffer 33, and the line end code (DL) is stored in address n+34
  • the content in address n+34 in the correction buffer 33 which is indicated by the pointer 37 is first examined, thereby checking that the input data indicates the line end code (DL) instead of the character code. Since the input data is the line end code (DL) in this case, the recording paper 7 is returned in the vertical direction by a predetermined amount and the printer head 3 is set to the vertical position of the first line.
  • the pointer 37 is moved back by (-1) and the content in address n+33 in the correction buffer 33 is examined. Since it indicates the posi­tion code (CP), the printer head 3 is moved to the absolute position indicated by the data of the position code. The space amount 38 is set to "0". The pointer 37 is moved back to indicate address n+32. By the above operation, the printer head 3 is moved to the position e corresponding to ".” (period) shown in Fig. 6A. On the other hand, the correction buffer 33 and pointer 37 in such a state are as shown in Fig. 6B. Due to this, in the invention, when the word delete key 44 is input, if the printer head 3 does not exist at the position over the printer character, the printer head 3 is located to the nearest printed character.
  • the printer head 3 can be easily located to the final printed character or the end of the word.
  • the printer head 3 is ordinarily located at the position next to the final printed character, an inconvenience such that when the word delete key 44 is erroneously input, the word which does not need to be deleted is deleted is prevented.
  • the word delete key 44 When the word delete key 44 is input in the above-mentioned state, that is, the state in which the printer head 3 exists at the position e in Fig. 6A, the pointer 37 indicates address n+32, the content of the correction buffer 33 is as shown in Fig. 6B, and the space amount 38 is set to "0", the pointer 37 indicates address n+32 and the character code ".” (period) is set in address n+32 in the correction buffer 33. Therefore, the word deleting operation is executed. In other words, to delete ".” (period), the type “.” (period) of the type wheel 5 is selected and hit through the correction tape. The printed character ".” (period) on the recording paper 7 is peeled off or the white ink is coated onto the printed character, thereby deleting the printed character.
  • the pointer 37 is moved back by (-) and address n+31 is indicated.
  • the distance from the present printer head position (e in the diagram) to "N" stored in address n+31 is stored into the space amount 38. Since address n+31 in the correction buffer 33 indicated by the pointer 37 represents the character code "N”, the printer head 3 is moved to the position over the printed character "N" on the basis of the movement distance information of the space amount 38. Then, the space amount 38 is set to "0".
  • "N" is deleted, the pointer 37 is moved back by (-1) to indicate address n+30, and the distance from the printer head position to "I" in address n+30 is stored into the space amount.
  • the pointer 37 indicates address n+26 in the correc­tion buffer 33.
  • the content in address n+26 indicates the space code (SP) instead of the character code.
  • SP space code
  • the word deletion is finished and a predeter­mined feed amount indicated by the space code (SP) is added to the space amount 38 and the resultant data is stored.
  • the recording paper 7 has a form as shown in Fig. 7A.
  • the contents of the correction buffer 33 and pointer 37 are as shown in Fig. 7B.
  • the printer head 3 is located at g in Fig. 7A. The distance from the present printer head position to the printed character "Y" is stored in the space amount 38.
  • the pointer 37 indicates address n+25 in the correction buffer 33.
  • the content in address n+25 is the character code "Y".
  • the space amount 38 is not set to "0" and indicates that the printer head 3 does not exist over the printed character. Therefore, the word deletion is not executed.
  • the printer head 3 is moved to the position (h in the diagram) over the printed character "Y" on the basis of the movement distance information of the space 38.
  • the space amount 38 is set to "0" and the operation is finished. Con­sequently, according to the invention, even when the printer head 3 is located on the same line as the printed character, if the printer head 32 is not located over the printed character, the head 3 is moved to the nearest printed character.
  • the printer head 3 can be located to the position over the nearest printed character. Therefore, even in such a case, the word can be deleted by inputting the word delete key 44 twice. Thus, the word deletion can be executed without performing the complicated operations as in the conven­tional example.
  • Fig. 8 is a flowchart for the word deletion processing program stored in the ROM 31 in the control logic circuit 11. This program is started by inputting a word delete instruction by the word delete key 44.
  • step S4 the pointer 37 is moved back to delete the data of the erased printed character from the correction buffer 33.
  • step S5 the distance from the position of the printer head 3 to the stored character or the like indicated by the pointer 37 is obtained and stored into the space amount 38.
  • step S6 if the stored data indicated by the pointer 37 is the character code, step S7 follows and the printer head 3 is moved back by only the distance stored in the space amount 38 in order to move the printer head 3 to the position over the printed character of the stored data indicated by the pointer 37.
  • step S8 the space amount 38 is reset to "0".
  • the processing routine is again returned to step S3 and a desired character is deleted.
  • step S9 follows. If the pointer does not indicate the space code (SP), this means that the buffer start code (BG) or line end code (DL) has been detected. Therefore, the word deleting process is finished.
  • step S10 follows and the shift amount is added to the space amount 38 and the resultant value is stored.
  • the space code (SP) is deleted in step S11 and the word deleting process is finished.
  • step S12 follows and the printer head 3 is moved back by only the distance stored in the space amount 38 and is located over the printed character.
  • the space amount 38 is reset to "0" in step S17 and the word deleting process is finished.
  • step S13 follows. If the control code is not the line end code (DL) in step S13, the control code is the buffer start code (BG). Therefore, this means that no printed character exists, so that the word deleting process is finished. Since such a state relates to the case where the word delete key 44 was input when the character to be deleted does not exist, this state is regarded as an abnormal operation and a warning may be informed to the operator by a buzzer or the like.
  • step S14 follows and the platen 6 of the printer mechanism 2 is rotated to locate the printer head to the previous line.
  • step S15 the pointer 37 is moved back and the line end code (DL) is deleted.
  • step S16 then follows and the printer head 3 is moved to the absolute position shown by the position code (CP) indicated by the pointer 37. The printer head 3 is located over the printed character.
  • step S17 the space amount 38 is reset to "0" and the word deleting process is finished.
  • the key data input by the keyboard 1 is temporarily stored into the key buffer 34, so that a problem such that the input key data is lost does occur.
  • the key data stored in the key buffer 34 is not read out so long as the word deleting process is finished.
  • Fig. 9A is a diagram showing a state during the execution of the word deletion of a word "TYPEWRTER.” (shown in a region i in the diagram) as a printed character string having the wrong spelling.
  • the characters (ER.) shown as broken lines in the diagram denote that they have already been deleted.
  • the printer head 3 is located at the position j in the diagram.
  • Fig. 9B shows printer mechanism control timings which are required for the word deleting operations such as deletion (D1) of ".”, deletion (D2) of “R”, deletion (D3) of "E”, ... by inputting the word delete key (WDEL) 44 from the keyboard 1.
  • the operat­ing times differ in dependence on the characters to be deleted or the like.
  • the key input is retrieved at every predetermined period by using counting means in the timer 36 of the apparatus. When the key input is detected, the input key data is immediately stored into the key buffer 34.
  • the correction word such as "T” input (K1), "Y” input (K2), ... can be also input. Since the input characters or the like are stored in the key buffer 34, when the word deleting operaiton is finished, the characters stored in the key buffer 34 are sequentially read out in accordance with the storing order and a desired correction word "TYPEWRITER.” is printed and output. In this manner, the input waiting time is reduced, the throughput is raised, and the smooth operation is provided.
  • the flag and register buffer area 35 in the RAM 32 has an E-flag 351 (not shown) and an R-flag 352 (not shown). Both of the E-flag 351 and the R-flag 352 are reset upon initialization of the power-on of the apparatus or the like.
  • Fig. 11 shows a flowchart for the word deletion processing program stored in the ROM 31 of the control logic circuit 11. This program is started when a word deletion instruction is input by the word delete key 44.
  • step S6 If the pointer 37 indicates the character code in step S6, a check is made in step S21 to see if the stop operation has been instructed or not by checking the R-flag 352. If NO, step S7 follows and the printer head 3 is moved to the position over the character to be deleted. The space amount 38 is reset in step S8. The processes in steps S3 to S8 are repeated until the control code (delimiter of a word) is detected in step S6.
  • step S21 On the other hand, if the R-flag 352 has been set in step S21, this means that the stop of the opera­tion has been requested. Therefore, step S22 follows and the E-flag 351 and R-flag 352 are reset and the input of the stop operation is inhibited and the word deleting process is stopped. Since the stop discrimi­nating step S21 is executed every deletion of the character, the operation can be stopped at an arbitrary position during the word deleting operaiton.
  • step S6 When the operation stop is not requested, the control code (delimiter of a word) is detected in step S6.
  • the processing routine advances to step S9. If the pointer does not indicate the space code (SP) in step S9, the E-flag 351 and R-flag 352 are reset in step S22 and the word deleting process is finished. If the pointer indicates the space code (SP) in step S9, the space amount 38 is updated in step S10. Step S11 then follows and the pointer 37 is moved back and the space code (SP) is deleted. In step S22, the E-flag 351 and R-flag 352 are reset and the word deleting process is finished.
  • step S2 if the space amount 38 is not set to "0" in step S2, the printer head 3 is moved to the nearest printed character in step S12. Step S17 follows and the space amount 38 is reset. The word deleting process is finished.
  • step S13 follows. If the control code does not indicate the line end code (DL) in step S13, the word deleting process is finished. If the line end code (DL) has been indicated in step S13, the recording paper 7 is returned to the previous line in step S14. In step S15, the pointer 37 is moved back and the line end code (DL) is deleted. Step S16 then follows and the printer head 3 is moved to the position indicated by the position code (CP). In step S17, the space amount 38 is reset. The word deleting process is finished.
  • Fig. 12 is a flowchart for a key input process­ing program stored in the ROM 31 in the control logic circuit 11.
  • the state of the keyboard 1 is retrieved at every predetermined time by the interrupting process or the like on the basis of an output (INT2) of the counting means of the timer 36.
  • INT2 an output of the counting means of the timer 36.
  • step S31 follows. If a blank area exists in the key buffer 34, the input key data is stored into the key buffer 34 in step S32 and the key input process is finished. If the key buffer 34 is filled with data, the key input process is finished. At this time, the overflow of the key buffer can be also warned by a buzzer sound or the like.
  • step S33 follows and a check is made to see if the word deletion stop operation is executed or not.
  • the word deletion stop operation can be also executed by inputting an independent function key.
  • the stop operation is executed by inputting a combination of the existing keys on the keyboard 1, for instance, by inputting the word delete key 44 with the code key 45 depressed.
  • step S34 follows and the R-flag 352 is set such that the stop is determined in the discriminating step S21 in Fig. 11.
  • step S35 the key buffer 34 is reset to delete the key data which was input during the word deleting operation and the key input process is finished.
  • the key buffer 34 is reset to delete the key data which was input during the word deleting operation and the key input process is finished.
  • the key buffer 34 is filled with data, the key data of the stop operation is processed without being stored into the key buffer 34. Therefore, in the case of the slow operation such as a deleting operation, even if the key input operations had been executed at a high speed and the key buffer 34 over­flowed, the word deleting operation can be stopped.
  • the key input data is stored into the FIFO buffer.
  • the key input operations were performed by a combination of special keys, the key input data is not stored into the FIFO buffer but the special instructing function can be provided.
  • step S31 follows and if a blank area exists in the key buffer 34, the key input data is stored into the key buffer 34 in step S32 and the key input process is finished. Thus, a correction word or the like can be also input during the word deleting operation.
  • the word delete key 44 has been used to instruct the word deletion.
  • the word deletion can be also instructed by inputting the delete key 43 with the code 45 depressed.
  • the hood-open sensor provided in the conventional recording apparatus such as a typewriter or the like can be omitted.
  • the low-cost apparatus can be provided without reducing the functions of such an apparatus.
  • the invention can be also similarly applied to the deletion of one line. In such a case, it is sufficient that the deleting operation is finished by using the line end code (DL) and buffer start code (BG).
  • DL line end code
  • BG buffer start code
  • the printer head can be easily moved to the position over the nearest printed character to be deleted.
  • the printer head can be easily moved to the position of a desired printed character to be deleted without operating a plurality of keys as in the conventional apparatus.
  • the word deleting operation can be stopped at an arbitrary position, the deletion is not performed in vain in the case of the erroneous operation, so that the high efficient typing work can be provided.
  • daisy wheel printer has been used as a printing apparatus in the embodiments, the similar effect can be also obtained by applying the invention to other recording apparatuses such as a thermal copy transfer printer and the like.

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  • Accessory Devices And Overall Control Thereof (AREA)
  • Record Information Processing For Printing (AREA)
  • Document Processing Apparatus (AREA)
EP19890305597 1988-06-03 1989-06-02 Zeichenverarbeitungsvorrichtung Expired - Lifetime EP0345088B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63136786A JPH01305464A (ja) 1988-06-03 1988-06-03 記録装置
JP136786/88 1988-06-03

Publications (3)

Publication Number Publication Date
EP0345088A2 true EP0345088A2 (de) 1989-12-06
EP0345088A3 EP0345088A3 (en) 1990-04-11
EP0345088B1 EP0345088B1 (de) 1993-11-10

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ID=15183486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890305597 Expired - Lifetime EP0345088B1 (de) 1988-06-03 1989-06-02 Zeichenverarbeitungsvorrichtung

Country Status (3)

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EP (1) EP0345088B1 (de)
JP (1) JPH01305464A (de)
DE (1) DE68910585D1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156559A (en) * 1984-03-09 1985-10-09 Scm Corp Automatic word correcting system
EP0228292A2 (de) * 1985-12-28 1987-07-08 Brother Kogyo Kabushiki Kaisha Ein Schriftzeichen-Löschdruckgerät
EP0256633A2 (de) * 1986-06-13 1988-02-24 Brother Kogyo Kabushiki Kaisha Zeichenlöschvorrichtung für Drucker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156559A (en) * 1984-03-09 1985-10-09 Scm Corp Automatic word correcting system
EP0228292A2 (de) * 1985-12-28 1987-07-08 Brother Kogyo Kabushiki Kaisha Ein Schriftzeichen-Löschdruckgerät
EP0256633A2 (de) * 1986-06-13 1988-02-24 Brother Kogyo Kabushiki Kaisha Zeichenlöschvorrichtung für Drucker

Also Published As

Publication number Publication date
EP0345088B1 (de) 1993-11-10
DE68910585D1 (de) 1993-12-16
EP0345088A3 (en) 1990-04-11
JPH01305464A (ja) 1989-12-08

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