EP0132456A1 - Méthode et dispositif pour contrôler la qualité des phrases de matière imprimée particulièrement pour journaux - Google Patents

Méthode et dispositif pour contrôler la qualité des phrases de matière imprimée particulièrement pour journaux Download PDF

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Publication number
EP0132456A1
EP0132456A1 EP83107480A EP83107480A EP0132456A1 EP 0132456 A1 EP0132456 A1 EP 0132456A1 EP 83107480 A EP83107480 A EP 83107480A EP 83107480 A EP83107480 A EP 83107480A EP 0132456 A1 EP0132456 A1 EP 0132456A1
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EP
European Patent Office
Prior art keywords
memory
pixels
bit map
nibble
byte
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
EP83107480A
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German (de)
English (en)
Other versions
EP0132456B1 (fr
Inventor
Peter Karow
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.)
Dr Ing Rudolf Hell GmbH
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Dr Ing Rudolf Hell GmbH
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 Dr Ing Rudolf Hell GmbH filed Critical Dr Ing Rudolf Hell GmbH
Priority to AT83107480T priority Critical patent/ATE32390T1/de
Priority to DE8383107480T priority patent/DE3375613D1/de
Priority to EP83107480A priority patent/EP0132456B1/fr
Priority to SU843778328A priority patent/SU1429929A3/ru
Priority to US06/634,961 priority patent/US4667247A/en
Priority to JP59157738A priority patent/JPS6073847A/ja
Priority to AU31286/84A priority patent/AU3128684A/en
Publication of EP0132456A1 publication Critical patent/EP0132456A1/fr
Application granted granted Critical
Publication of EP0132456B1 publication Critical patent/EP0132456B1/fr
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
    • B41B27/00—Control, indicating, or safety devices or systems for composing machines of various kinds or types
    • 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
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/39—Control of the bit-mapped memory
    • G09G5/391—Resolution modifying circuits, e.g. variable screen formats

Definitions

  • the present invention relates to a method and a device for checking the typesetting quality of printed products, in particular newspapers, in printing technology.
  • text commands are usually entered on an electronic typesetting machine in such a way that the addresses for the various successive characters such as letters, numbers, punctuation marks, etc. are fed in one after the other.
  • the typesetting machine uses the addresses to get the corresponding digital information for recording the character from its character memory or font memory, strings them together in the order ordered and in this way compiles the so-called bit map , in which the text image is coded line by line and point by point.
  • the individual bit maps of each of the characters stored in the font memory are usually displayed with 34 x 34 bits, each 9-square.
  • Such a bit map usually contains parts of a newspaper page in the form of slices about 1000 pixels wide across the entire page cached up to a length of approximately 12,000 bits.
  • a newspaper page of about 40 x 60 cm is read by line and point by point reading the bit map and line and point by point exposure of a film with e.g. B. laser light, the value 0 of a bit z. B. is interpreted as "light off” and the value 1 as "light on”.
  • a newspaper page usually has a size of 40 x 60 cm.
  • the text is usually written with a letter size of 3.4 x 3.4 mm for the square, which corresponds to about 2.2 mm for the height of the letter "H". If one were to display the upper (or lower) 40 x 40 cm of the newspaper page with 1000 x 1000 pixels, the area would only average approx. 8.5 instead of the 34 x 34 bits available in the original bit map of the newspaper page x 8.5 bits are omitted, i.e. 8.5 x 8.5 black or white pixels. This means that even when using special screens with the highest resolution that can be achieved today, the texts still remain illegible.
  • the invention is based on the object of specifying a method and a device for checking the typesetting quality of printed products, in particular newspapers, with the aim of achieving better legibility.
  • the invention achieves this in that the information content of a bit map from a reading device is read over several lines and fed to an intermediate device in which the average gray value of the rectangles mxn is determined from successive rectangles of m successive pixels of n adjacent lines and fed together with the position of the associated rectangle into a screen input device.
  • the successive rectangles consist of 4 successive pixels each of four successive lines, the pixels displayed on the screen having dimensions smaller than the sum of the dimensions of the individual pixels from which they are constructed.
  • the pixels displayed on the screen are preferably reduced in relation to the individual pixels of the bit map in a ratio of approximately 1: 2 to close to 1: 1.
  • bit map of the printed product to be checked is constructed from a font whose character matrices of the different characters are of the same height but different width depending on the nature of the respective character.
  • a device for carrying out the method comprising a permanent font memory, a sentence computer, a memory for the bit map created by the sentence computer and, if appropriate, an intermediate memory for the font memory Character information and a video controller connected upstream of the screen is characterized by a partial byte computer connected downstream of the bit map memory and a partial byte memory connected downstream of this and the video controller.
  • the sub-byte calculator is a nibble calculator and the sub-byte memory is a nibble memory
  • the input of the video controller has at least a bandwidth of 64 x 10 6 nibbles / sec and between Sub-byte memory and the monitor in the video controller
  • a selector for selecting individual sub-bytes from a packet of several sub-bytes is connected, wherein the selector can be a 1 out of 8 selector.
  • the invention enables legible image reproduction of the bit map of the upper or lower part of e.g. B. 40 x 40 cm of a newspaper page, i.e. 2/3 of the normal page. It is based on the surprising finding that this can be made possible by feeding the input device of the screen instead of bit by bit with the unprepared information content of the bit map with a specially prepared information thereof.
  • the information of several neighboring pixels is summarized as a gray tone and encrypted.
  • the ge in the font memory of the typesetting machine stored digital image information of the various letters and characters bit matrices of the same height but different widths used, depending on how the width of the respective character requires, z. B. for the letters "w" and “m” 34 bit including front and back width and only z. B. 5 for the point ".”.
  • the "over-pixels" can be displayed on the screen in a smaller size than the sum of the individual pixels from which they are constructed.
  • each “over-pixel” is composed of 4 ⁇ 4 individual pixels with the dimensions of 0.1 ⁇ 0.1 mm each, it is preferably instead of a size of 0.4 ⁇ 0.4 mm depending on the dimensions of the television screen used from 0.2 x 0.2 mm to 0.36 x 0.36 mm.
  • a newspaper section of 40 x 40 cm with over pixels of 0.2 x 0.2 to 0.36 x 0.36 mm side length, i.e. on a screen of 20 x 20 to 36 x 36 cm with an image capacity of 1000 x 1000 pixels, can be displayed.
  • an intermediate device between the reading device connected downstream of the bit map and the input device connected upstream thereof is required, which reads out the bit map n lines by line (preferably 4 times by lines), in m - Pixel width (preferably 4-pixel width) combined into a series of successive rectangles, from the mxn (preferably 4 x 4) individual pixels, the average gray value is calculated and fed into the screen input as a multi-bit code (preferably as a nibble).
  • FIG. 1 a shows the bit map for this letter with the bit number of 34 x 34 bits, which is common in newspaper printing, of 34 x 34 bits per 9 p letter, with the "over pixels" combined according to the invention to form rectangles (in the example shown, 4 x 4 pixels).
  • the number of black bits contained in each of these rectangles is indicated.
  • Figure lc shows what this letter would look like in a pure black and white reproduction (black the rectangles with at least 7 and white those with 6 or fewer black bits per rectangle) with 8.5 x 8.5 pixels per letter - namely completely illegible.
  • Figure 2 (1) is a bus line through which the modules (2 to 7) can communicate with each other, for. B. a commercially available VME-BUS.
  • a font memory (2) is provided in which the bit matrices for the individual characters are permanently stored, preferably on magnetic disks (floppy disks). The sum of all characters of a certain font forms a so-called font.
  • a bit matrix of 34 x 34 bits is provided for a font that is to be displayed in 9p font size, cf. Fig. 1, in which the number of black pixels per 4 x 4 bit square are also entered.
  • the text to be set is from a sentence calculator (3), z. B.
  • the text commands to be processed by the typesetting computer (3) contain, in addition to the text, information about the thickness (cf. FIG. 1) of each letter, ie the exact distance in bits, which it together with a small white area (Pre-width) and a small white area after (post-width). In this way, the sentence computer (3) can determine the most advantageous starting position for the bit map of the respective subsequent letter from the information of the character just set.
  • the partial byte computer (6) used according to the invention and also connected to the BUS (1) works.
  • it is a nibble byte computer, eg. B. a FORCE CPU 68000 Sys 68 K / CPU-1.
  • the computer (6) proceeds line by line and forms the first 1 x 1000 nibbles of the first 4 x 4000 bits of the bit map (5) Memory (7), as well as the second 1 x 1000 nibbles etc. from the second 4 x 4000 bits etc.
  • the record processor (3) and the nibble calculator (6) it only fetches to the nibble memory (7), but not to the BUS -Line (1) connected video controller (8) from the nibble memory (7) line by line 1000 nibbles each. From these, the television signals for a television line are generated via the digital-to-analog converter (9) required for the screen input and are offered to the electronics of the monitor (10).
  • FIG. 3 The completion of these orders in time can be seen in FIG. 3, in which the top line represents the transfer cycle, which can be, for example, 125 ns.
  • the successive order numbers are given in the second line.
  • the requested nibble packet is transferred to the video controller (8) (transfer points F 1 , F 2 , F3 ... ) , ( end points E 1 , E2 ' E3 ).
  • Figure 4 shows a circuit suitable for this purpose. It is a 2-way memory into and from which data can be transferred asynchronously via both routes. The circuit enables multiple accesses, four times in the example shown.
  • an address sent by an address generator which is shown later in FIG. 5a, under which a 32-bit word is to be read, passes via the transfer interface b, which is shown in FIG ) in one of the 4 address / data registers (23), (26), (29), (32). Which one exactly depends on the address. With consecutive addresses, the registers (23), (26), (29), (32) are addressed in succession.
  • Each of the 4 registers is connected to a memory matrix (24), (27), (30), (33) with a capacity of 64 K 32-bit words and a memory controller (124, 127, 130, 133).
  • the memory controller which ensures the correct timing for the memory modules, is known per se and is made up of standard TTL modules.
  • the memory matrix is made up of 64 K-bit dynamic RAM memories (e.g. Mostek MK 4564). After the access time of the memory matrix (24), (27), (30), (33) has expired, the data are available at the output of the matrix and are entered into the address / data registers (23), (26), (29) (32) loaded. Via the transfer interface (34) they arrive in a nibble byte register of the video controller (8).
  • the access of the nibble computer (6) is analogous to the memory access of the video controller.
  • connection to the bus (1) via the interface a takes place via the registers (22), (25), (28) and (31).
  • FIGS. 5a and 5b show the transfer from the half-byte memory (7) to the monitor (10) in greater detail.
  • An address generator (35) is provided (e.g. AMD AM 2932), which is connected via a Basic clock d is controlled. This clock is supplied by the synchronization generator (20) and is identical to the basic clock shown in FIG. 3, ie the transfer clock.
  • the address generator (35) transfers the current address of the nibble packet to be called up to an address register (36) (e.g. TI SN 74LS374), which takes over the address with the system clock and makes it available at the output.
  • the address reaches the nibble memory (7) via a bus driver (21).
  • the data supplied by the nibble memory arrives in the nibble byte register (12) via a selector (11), where it is accepted with the system clock c.
  • a nibble packet consisting of 8 individual nibbles is available at the output of the register (12).
  • the individual nibbles are selected in succession via an l out of 8 selector (15) and passed on to a nibble representation register (18), into which they are adopted with the system clock c.
  • the 1 out of 8 selector (15) has 8 inputs and a control unit (17).
  • the control unit (17) consists of a register (171) which is controlled by the system clock c.
  • the register (171) is connected to a selector (172) which is controlled by the basic clock d, which, like the clock c, is supplied by the synchronization generator (20).
  • the clock c is 8 times faster than the clock d since the 1 out of 8 selector (15) is queried 8 times in a clock period of d.
  • the selector (172) is also connected to a step-up circuit (173) and to a zero generator (174), which is also driven by the clock d.
  • the control unit (17) is reset via the control signal d, so that the first nibble reaches a nibble representation register (18) via the 1 out of 8 selector (15).
  • the system clock c increases the value of the control unit by 1, and the next nibble reaches the nibble representation register (18) via the 1 out of 8 selector (15).
  • the last nibble of the nibble packet is switched through to the nibble representation register (18).
  • a new output cycle of the nibbles then begins with the resetting of the control unit (17) via the control line d.
  • the half byte located in the nibble display register (18) via the digital / analog converter (19) (eg Analogic MP 8318th) into an analog voltage - signal implemented and to the monitor (10) as a video signal in the video input given.
  • the digital / analog converter (19) eg Analogic MP 8318th
  • a known and commercially available synchronization generator (10) which can be constructed discretely from standard TTL modules, provides the necessary synchronization signals (horizontal and vertical synchronization signals) for operating the monitor (10) as well as the basic clock d and the 8 times higher clock c.
EP83107480A 1983-07-29 1983-07-29 Méthode et dispositif pour contrôler la qualité des phrases de matière imprimée particulièrement pour journaux Expired EP0132456B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT83107480T ATE32390T1 (de) 1983-07-29 1983-07-29 Verfahren und vorrichtung zur pruefung der satzqualitaet von druckerzeugnissen, insbesondere zeitungen.
DE8383107480T DE3375613D1 (en) 1983-07-29 1983-07-29 Method and device to check the sentence quality of printed matter, in particular for newspapers
EP83107480A EP0132456B1 (fr) 1983-07-29 1983-07-29 Méthode et dispositif pour contrôler la qualité des phrases de matière imprimée particulièrement pour journaux
SU843778328A SU1429929A3 (ru) 1983-07-29 1984-07-27 Способ электронного ретушировани печатных изданий
US06/634,961 US4667247A (en) 1983-07-29 1984-07-27 Method and apparatus for checking the quality of composings for printing products, in particular newspapers
JP59157738A JPS6073847A (ja) 1983-07-29 1984-07-30 印刷物の植字品質を検査するための方法および装置
AU31286/84A AU3128684A (en) 1983-07-29 1984-07-30 Checking record quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83107480A EP0132456B1 (fr) 1983-07-29 1983-07-29 Méthode et dispositif pour contrôler la qualité des phrases de matière imprimée particulièrement pour journaux

Publications (2)

Publication Number Publication Date
EP0132456A1 true EP0132456A1 (fr) 1985-02-13
EP0132456B1 EP0132456B1 (fr) 1988-02-03

Family

ID=8190600

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83107480A Expired EP0132456B1 (fr) 1983-07-29 1983-07-29 Méthode et dispositif pour contrôler la qualité des phrases de matière imprimée particulièrement pour journaux

Country Status (7)

Country Link
US (1) US4667247A (fr)
EP (1) EP0132456B1 (fr)
JP (1) JPS6073847A (fr)
AT (1) ATE32390T1 (fr)
AU (1) AU3128684A (fr)
DE (1) DE3375613D1 (fr)
SU (1) SU1429929A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201972A2 (fr) * 1985-05-13 1986-11-20 Philips Electronics Uk Limited Méthode et circuit d'arrondissage d'éléments d'image pour un dispositif d'affichage à balayage à trame et dispositif d'affichage à balayage à trame comportant un tel circuit
EP0304509A1 (fr) * 1987-08-28 1989-03-01 URW Software & Type GmbH Dispositif d'affichage vidéo pour la visualisation de textes

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4916545A (en) * 1988-11-16 1990-04-10 Eastman Kodak Company Electronic graphic arts screener that suppresses Moire patterns using pseudo-random font selection
US4918622A (en) * 1988-11-16 1990-04-17 Eastman Kodak Company Electronic graphic arts screener
US4977458A (en) * 1988-11-16 1990-12-11 Eastman Kodak Company Apparatus for addressing a font to suppress Moire patterns occurring thereby and a method for use therein
US5274473A (en) * 1989-08-04 1993-12-28 Intergraph Corporation Rapid variable angle digital screening
US5065149A (en) * 1989-11-09 1991-11-12 Document Technologies, Inc. Scanned document image resolution enhancement
US5543939A (en) * 1989-12-28 1996-08-06 Massachusetts Institute Of Technology Video telephone systems
US5083210A (en) * 1990-09-28 1992-01-21 Xerox Corporation Elimination of contouring on displayed gray level images
FI92255C (fi) * 1992-10-16 1994-10-10 Data Instmsto Oy Laite painokoneella tuotetun painojäljen laadun valvontaan
EP0651352A1 (fr) * 1993-10-27 1995-05-03 Toshiba Engineering Corporation Méthode et appareil pour inspecter une irrégularité de surface d'un objet ou article
US5929866A (en) * 1996-01-25 1999-07-27 Adobe Systems, Inc Adjusting contrast in anti-aliasing
US6563502B1 (en) 1999-08-19 2003-05-13 Adobe Systems Incorporated Device dependent rendering
US7006107B2 (en) 2003-05-16 2006-02-28 Adobe Systems Incorporated Anisotropic anti-aliasing
US7002597B2 (en) * 2003-05-16 2006-02-21 Adobe Systems Incorporated Dynamic selection of anti-aliasing procedures
US7639258B1 (en) 2004-03-31 2009-12-29 Adobe Systems Incorporated Winding order test for digital fonts
US7719536B2 (en) * 2004-03-31 2010-05-18 Adobe Systems Incorporated Glyph adjustment in high resolution raster while rendering
US7602390B2 (en) * 2004-03-31 2009-10-13 Adobe Systems Incorporated Edge detection based stroke adjustment
US7580039B2 (en) * 2004-03-31 2009-08-25 Adobe Systems Incorporated Glyph outline adjustment while rendering
US7333110B2 (en) 2004-03-31 2008-02-19 Adobe Systems Incorporated Adjusted stroke rendering
US20080068383A1 (en) * 2006-09-20 2008-03-20 Adobe Systems Incorporated Rendering and encoding glyphs

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GB2005500A (en) * 1977-09-26 1979-04-19 Burroughs Corp A video synthesizer for a digital video display system employing a plurality of gray-scale levels
US4303948A (en) * 1978-09-14 1981-12-01 Fuji Xerox Co., Ltd. Image transcribing system
EP0054693A2 (fr) * 1980-12-24 1982-06-30 International Business Machines Corporation Système de traitement de mots affichant la représentation d'une page totale

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JPS5291614A (en) * 1976-01-28 1977-08-02 Fujitsu Ltd Correcting quality of printed characters in printer
JPS52150157A (en) * 1976-06-07 1977-12-13 Matsushita Electric Works Ltd Protection cap of electric shaver

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Publication number Priority date Publication date Assignee Title
GB2005500A (en) * 1977-09-26 1979-04-19 Burroughs Corp A video synthesizer for a digital video display system employing a plurality of gray-scale levels
US4303948A (en) * 1978-09-14 1981-12-01 Fuji Xerox Co., Ltd. Image transcribing system
EP0054693A2 (fr) * 1980-12-24 1982-06-30 International Business Machines Corporation Système de traitement de mots affichant la représentation d'une page totale

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Title
IBM TECHNICAL DISCLOSURE BULLETIN, Band 19, Nr. 9, Februar 1977, Seiten 3248-3249, New York, US *
IBM TECHNICAL DISCLOSURE BULLETIN, Band 23, Nr. 8, Januar 1981, Seiten 3553-3555, New York, US *
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201972A2 (fr) * 1985-05-13 1986-11-20 Philips Electronics Uk Limited Méthode et circuit d'arrondissage d'éléments d'image pour un dispositif d'affichage à balayage à trame et dispositif d'affichage à balayage à trame comportant un tel circuit
EP0201972A3 (fr) * 1985-05-13 1990-07-04 Philips Electronics Uk Limited Méthode et circuit d'arrondissage d'éléments d'image pour un dispositif d'affichage à balayage à trame et dispositif d'affichage à balayage à trame comportant un tel circuit
EP0304509A1 (fr) * 1987-08-28 1989-03-01 URW Software & Type GmbH Dispositif d'affichage vidéo pour la visualisation de textes

Also Published As

Publication number Publication date
EP0132456B1 (fr) 1988-02-03
ATE32390T1 (de) 1988-02-15
JPS6073847A (ja) 1985-04-26
DE3375613D1 (en) 1988-03-10
SU1429929A3 (ru) 1988-10-07
US4667247A (en) 1987-05-19
AU3128684A (en) 1985-01-31

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