EP0144657A2 - Méthode d'affichage de textes avec des directions d'écriture différentes - Google Patents

Méthode d'affichage de textes avec des directions d'écriture différentes Download PDF

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Publication number
EP0144657A2
EP0144657A2 EP84112600A EP84112600A EP0144657A2 EP 0144657 A2 EP0144657 A2 EP 0144657A2 EP 84112600 A EP84112600 A EP 84112600A EP 84112600 A EP84112600 A EP 84112600A EP 0144657 A2 EP0144657 A2 EP 0144657A2
Authority
EP
European Patent Office
Prior art keywords
font
character
characters
script
writing
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
EP84112600A
Other languages
German (de)
English (en)
Other versions
EP0144657A3 (en
EP0144657B1 (fr
Inventor
Gerd-Joachim Dipl.-Ing. Günther (FH)
Heide-Marie Miller
Hermann Dipl.-Ing. Rothenaicher
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0144657A2 publication Critical patent/EP0144657A2/fr
Publication of EP0144657A3 publication Critical patent/EP0144657A3/de
Application granted granted Critical
Publication of EP0144657B1 publication Critical patent/EP0144657B1/fr
Expired legal-status Critical Current

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/16—Display of right-to-left language
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/08—Cursor circuits

Definitions

  • the invention relates to a method for displaying characters with different writing directions on a display unit according to the preamble of claim 1. Furthermore, the invention relates to an arrangement for performing the method.
  • the invention is therefore based on the object of specifying a method which greatly simplifies the input of the characters of different fonts with opposite writing directions.
  • the object is achieved in the method of the type mentioned by the features specified in the characterizing part of claim 1.
  • the method according to the invention has the advantage that mixed input between the two fonts is possible without difficulty. Furthermore, the subsequent insertion of further characters is easily possible. Regardless of the font, the cursor always identifies the position where the next character is written. In this way, the use of a typewriter or a telecommunications device provided with the display unit becomes very simple.
  • a particularly advantageous representation is achieved if the cursor jumps to the last character of the first font after switching to the second font and remains at this point while the characters of the second font are being entered. If the cursor is designed as a character filling a character space, it is particularly advantageous if the last character of the first font is then inverted within this cursor.
  • the method is used in an advantageous manner in particular if an Arabic script and a Latin script are provided as the two scriptures.
  • the method works in the same way regardless of whether the Arabic script or the Latin script are provided as the first or the second script.
  • the display unit is part of a telecommunication device, for example a teleprinter
  • the characters shown are implemented in such a way that cooperation with other telecommunication devices is possible in accordance with a customary method of transferring the characters. This is achieved in particular in that after the changeover to the second font, each character in the second font is assigned two feed characters in the first writing direction. In this case, it is ensured that after writing the text of the second font, the printing position is in the first free space after the first character of the second font.
  • An advantageous arrangement for carrying out the method has a control unit which, after switching to the second font, prevents the cursor from being shifted after each input of a character of the second font and which, after switching back to the first font, prevents the cursor from moving to the first free position in the writing direction.
  • a writing line ZE of a display unit for example a single-line display unit or a multi-line cathode ray tube, is shown schematically.
  • An Arabic script is assumed as the first font, which is displayed in the first writing direction, from right to left, and a Latin script, which is displayed in the second writing direction, from left to right, is assumed as the second font.
  • the cursor SM jumps back to the last character of the Arabic script and the character Z4 is shown inverted. It is now assumed that the Latin text "PAT" should be inserted within the Arabic text. As the first character, as shown in line d, the character "P” is shown as the character Z5 immediately to the left of the cursor SM. The position of the cursor SM is not changed. If now the writing character "A" is entered, as shown in line e, the cursor SM remains unchanged.
  • the system switches back to the first font, namely the Arabic font.
  • the cursor SM jumps, as shown in line g, to the first free space to the left of the character Z7 and the input of Arabic characters can be continued.
  • the cursor SM is only formed as a vertical line after the last character in each case, it need not be shifted when switching from the first font to the second font. In this case, it can remain after the last character of the first font until after switching to the second font there is a switch back to the first font.
  • FIG. 2 shows the movement of a printing unit of a conventional teleprinter on which the text shown in FIG. 1, line g is printed out.
  • the text must be presented in the manner shown in FIG. 2.
  • a feed V1 takes place in the writing direction of the Arabic script, namely to the left. Since the characters of the Latin script contain a feed V3 to the right, a number of feeds V2 to the left must be carried out beforehand, which corresponds to the number of Latin characters. Then the Latin script kingdoms are printed with the feeds V3 to the right.
  • corresponding feeds V4 to the left are required again until the next free printing position is reached.
  • the block diagram shown in FIG. 3 shows a telecommunication device, for example a teleprinter, which is equipped with a display unit AE, for example a cathode ray tube, on which the texts are shown in lines ZE.
  • the telex machine also contains a printing unit DR, a keyboard TA for entering the characters, a peripheral memory PS and a line adapter LA, to which a trunk line FL is connected.
  • a control unit ST controls the processes during input and output as well as during the transfer of the characters.
  • This control unit ST preferably contains at least one microcomputer in which programs run which control the implementation of the method according to the invention.
  • a shift key UM is provided on the keyboard TA, which can be used to switch between the Arabic and the Latin characters. If, after the display of the Arabic text on the display unit AE, the shift key UM is actuated, the cursor SM on the display unit AE is controlled by the control unit ST such that the last character of the Arabic script is identified. If the keys assigned to the Latin character are then actuated, these characters are shown on the display unit AE as shown in FIG. 1. If the shift key UM is then actuated again, the cursor SM jumps, as shown in line g in FIG. 1, to the first free position in the writing direction of the Arabic script.
  • the control unit ST contains a memory SP in which the texts shown on the display unit AE can be stored.
  • the control unit ST ensures that, in addition to the code words for the Arabic characters Z1 to Z4 and the Latin characters Z5 to Z7, the corresponding feed characters V1 to V4 according to FIG. 2 are also stored in the correct place, so that the printer DR can be controlled can or that the texts are transmitted to a remote subscriber via the line adapter LA and the trunk line FL can be or can be stored in the peripheral memory PS and can be output to other output units without difficulty.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Digital Computer Display Output (AREA)
EP84112600A 1983-10-21 1984-10-18 Méthode d'affichage de textes avec des directions d'écriture différentes Expired EP0144657B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3338366 1983-10-21
DE19833338366 DE3338366A1 (de) 1983-10-21 1983-10-21 Verfahren und anordnung zum darstellen von schriften mit unterschiedlichen schreibrichtungen an einer anzeigeeinheit

Publications (3)

Publication Number Publication Date
EP0144657A2 true EP0144657A2 (fr) 1985-06-19
EP0144657A3 EP0144657A3 (en) 1985-07-17
EP0144657B1 EP0144657B1 (fr) 1988-02-03

Family

ID=6212470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112600A Expired EP0144657B1 (fr) 1983-10-21 1984-10-18 Méthode d'affichage de textes avec des directions d'écriture différentes

Country Status (3)

Country Link
EP (1) EP0144657B1 (fr)
JP (1) JPS60115987A (fr)
DE (2) DE3338366A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0210666A2 (fr) * 1985-08-02 1987-02-04 ARABIC LATIN INFORMATION OF SYSTEMS INC. (Alis Inc.) Dispositif et méthode pour un écran d'affichage d'un TRC
GB2186163A (en) * 1986-02-05 1987-08-05 Philips Electronic Associated Display apparatus for Hangul characters
EP2405363A1 (fr) * 2010-07-09 2012-01-11 Alpine Electronics, Inc. Procédé d'affichage de curseur et appareil d'entrée de caractères

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0710388Y2 (ja) * 1987-07-15 1995-03-08 シャープ株式会社 アラビア語表示装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2490365A1 (fr) * 1980-09-17 1982-03-19 Texas Instruments France Dispositif de visualisation de donnees en des ecritures de natures differentes telles que les ecritures arabe et latine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2490365A1 (fr) * 1980-09-17 1982-03-19 Texas Instruments France Dispositif de visualisation de donnees en des ecritures de natures differentes telles que les ecritures arabe et latine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, Band 22, Nr. 1, Juli 1979, Seiten 386-388, NEW YORK, (US). M.A. BATEY et al.: "Dual keying direction display closure". * Seiten 386-388 * *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0210666A2 (fr) * 1985-08-02 1987-02-04 ARABIC LATIN INFORMATION OF SYSTEMS INC. (Alis Inc.) Dispositif et méthode pour un écran d'affichage d'un TRC
EP0210666A3 (en) * 1985-08-02 1989-12-06 Arabic Latin Information Of Systems Inc. (Alis Inc.) Apparatus and method for crt display screen
GB2186163A (en) * 1986-02-05 1987-08-05 Philips Electronic Associated Display apparatus for Hangul characters
GB2186163B (en) * 1986-02-05 1989-11-01 Philips Electronic Associated Data display apparatus
EP2405363A1 (fr) * 2010-07-09 2012-01-11 Alpine Electronics, Inc. Procédé d'affichage de curseur et appareil d'entrée de caractères
US8810510B2 (en) 2010-07-09 2014-08-19 Alpine Electronics, Inc. Cursor display method and character input apparatus

Also Published As

Publication number Publication date
EP0144657A3 (en) 1985-07-17
DE3469234D1 (en) 1988-03-10
JPS60115987A (ja) 1985-06-22
DE3338366A1 (de) 1985-05-09
EP0144657B1 (fr) 1988-02-03

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