DE1549860A1 - Proofreading procedure - Google Patents

Description

ooari Ja ta Corporation in i'Jorristown, Pennsylvania

Proofreading procedure.

present force indun / ⁵ ; relates to a method for proofreading documents with 'i'extmateriel for reading in symbol recognition devices.

The use of symbol recognition methods, ie, recognition and reading of printed material by uechenma-; jchinen, is used more and more nowadays. However, covfoh 1 optical scanning systems, as well as other symbolic

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he recognizes s sy stars in quite a ria ^ e on printed material limited "The lirund for this fact lies aarin, that the manuscripts were made to a very high degree by one person others vary if the information is not in print or typewritten .form, it is therefore necessary to bring them into such a form so that they are recognized by symbol recognition devices and then the memory of a larger calculation machine, a Printing machine or any other data processing machine can be fed.

henceforth must in all those cases in which on printed material defects or Irrtüner occur, the same again written by typewriter so that the thus corrected material be read by a symbol detection device and a memory may be supplied, however, as is very common in corrected form that with the exception of a single line, an entire page of uata could be used perfectly; nevertheless, with the current state of the art, it is necessary that the entire page has to be copied or reprinted so that the insertion or omission can be inserted into the new text with regard to one line »

jis is therefore the aim of the present invention to provide a new. show good and improved proofreading procedures,

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with. its help a proofread copy "by means of optical scanning devices directly into a data machine can be read. '

Another aim of the present invention is to provide: ei.- ¹ '; new and "improved" proofreading process on zuzeiten, which uses easily recognizable correction symbols.

ii. Another aim of the present invention is to to create a set of correction symbols, welcUe allow the correction of a large part of the text "VHF. Can be changed without, however, additional manual iiroeit for a new reproduction of the entire text material for the subsequent conversion by a üym-Dolerkennunrt-sisystein in electronic machine language necessary, v <arre.

üiin another £ iel of the present invention is to 'show • ^L -in uno new improved method to text material to change so that the corrected haterial be read directly from an optical pickup r.ann. .

Another object of the present invention is to to demonstrate a new and improved process with

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wheel construction

corrected text material is read into a machine can be.

Finally, the object of the present invention is to provide a to show improved and new symbol recognition devices, with which it is possible to use printed l'ext material with handwritten corrections and changes read by machine.

According to the invention this is achieved in that from one Set of correction symbols, each of which is a correction instruction corresponds to individual correction symbols from Hand attached in the vicinity of the erroneous text passages also that the i'extmo material, which is provided with the corresponding correction symbols, is then entered directly into a symbol recognition device is introduced and that a corrected one from the symbol recognition device Text is worked out without the corrected 'i' text material having to be copied again or rewritten.

dine advantageous symbol recognition device according to the method of the present invention is that it contains the following units:

a) Units for introducing and scanning the document

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certain places. ■■■ - ■ _..-

b) A unit for controlling the body used by the Scanning organeri on the document is scanned and zu.m generating electrical signals according to the relevant scanned location.

c) units that respond to the scanning unit for recognition and. Determine the scanned files and generate them electrical signals as a function of the sampled , Lines.

d) A pike machine unit for storing the electrical Signals, both those being scanned and their positions on the document and to generate a text in which the Corrections are taken into account according to the correction symbols used are. .: ■ "·.

Furthermore, it is very advantageous if all correction symbols are derived from a U-round structure, and that the; uruij.uuor * x \. our aua consists of a vertical line and three pairs of horizontal lines, of which one pair each, in the middle and at the bottom of the horizontal line, and that the various correction symbols through the combinatorial presence or absence of the horizontal lines are formed.

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Furthermore, it is very advantageous if the depth machine unit contains a sub-unit which, in order to determine the correction reference, contains the positions of the rsuchstaoen of the original i'ext with that of the handwritten i compares correction symbols.

Within the scope of the present invention is a set of correction symbols which, although handwritten, are very easily recognized by a symbol recognition system can. The symbols consist of a vertical line and the combinatorial presence or absence of 6 horizontal lines that start laterally from the vertical line. These correction symbols are connected used with the text material by inserting it a suitable symbol below the relevant incorrect text passage. Having the symbols necessary for modification or correction of the text material have been inserted, the page of the text material is displayed together with the handwritten correction symbols into the symbol recognition device entered and read by derseluen; this then automatically corrects the text material in connection with the correction symbols.

'Other work times and attendant advantages of the present invention are explained in the following description of the figures in more detail and still with reference to the beige--

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attached drawings set out:

ri ^ ür 1 ict an enlarged view of the u-round structure of the invention; G _} .; e!: ipben correction symbol from which the batz, the. iorrektursymoole auigeoaut is;

Figure 2 is einodatZuVönekoFrektursymbolen constructed igur 1 from the correction of the symbol according to Jrundstruktur J- ^r;

■ i'i; '; ur 3 is a plan view of a sheet of text material, which has been proofread using the standard procedure;

Jc'igur U- is a top looks at a sheet of the same text material according to X ¹¹ IgUr 3, but with a proofreading according to the present invention;

j? 'igur 5 is a schematic block diagram of the optical Scanning system according to the present invention;

6 is a schematic block diagram of the for this oyotern used ochieberegisters;

! • 'igur? iot a schematic circuit diagram of the i'J iOp-FlopD-iindstromkreises, so v / heer within the ogictara used everywhere viird;

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SAD OfilOINAL

Figure 8 is a schematic circuit diagram of the character recognition circuitry as used within the signage connector cover assembly is used;

Figure 9 is a pictorial representation of the operation the character recognition circuits;

Figure lü is a schematic block diagram of the data flow inside the system according to the invention;

Figure 11 is a schematic block diagram of the flow of data within a hackle machine after a document has been scanned;

Figure 12 is a pictorial representation of the operation of the character recognition circuitry for recognizing a correction symbol.

The following is intended to focus more precisely on the various figures of the accompanying drawings are received, in many cases identical symbols correspond to identical parts. The correction symbol in the context of the present invention is shown in its most general form in Figure 1, corresponding to the reference sign 29, "Das Ivorrektursyinuol 2ü consists in principle of a vertical straight line 22 which extends through the entire length of the correction symbol.

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Symbol-points- furthermore 6 horizontal lines 24, 26, 28, 3Ü, -32-, and 34 on “The first pair of horizontal bars 24 and 26 extends sideways from the top of the straight Line 22 to the left or »to the right. From the center of the straight upright line 22 extends the pair of strokes 28 and 3 O sideways, also after left or right. Finally, the pair of strokes 32 and 34 extend from the bottom of the upright stroke also to the left or to the right.

The liorrektursyrnbol 2ü is the (J-round structure for a sentence . of handwritten symbols, which are marked by the upright Line 22 and a combinatorial presence or absence the lines 24 to 3 * 4- are formed. This set of symbols is shown in Figure 2 »As you can see from this, there are 64 symbols that come from the basic structure according to Figure! can be formed. This corresponds to the number of Coffibination options, which are determined by the presence or absence from 6 lines can be generated lu ^ wx, fiLh. 2jpr or 64, as will be further explained in the following, facilitates the use of a correction symbol ,, das consists of a single vertical line and a plurality of horizontal lines, an easy recognition of the symbol in question.

Each of the symbols according to FIG. 2 can be used to give either a correction instruction, a letter insertion or a correction instruction. Ho can zH the correct

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door symbol 36, which has a vertical j-line 22 and the riorizontal lines 24, 26, 32 and 34 and which is shown in FIG to give the instruction that a capital letter should be used instead of one at this point. Lower case is required, i.e. wherever text material is printed with an error due to the lower case of the first letter of a noun, the correction symbol j6 must be written below the first letter of this word. If thereupon the text material is introduced into a symbol recognition engine according to the present invention, a command is triggered on the basis of the correction tool 36 to change the text material according to the instruction; on ürund this command, the machine will then print an (irossbuhhstaben instead of a lowercase letter.

In standard systems for proofreading textual material, it has been necessary up to now to correct all the material and then copy it again on a typewriter or to be reprinted so that the corrections can be included in the incorrect text and a final one jpext is entered into the symbol recognition device can be. On the basis of the following example it is very easy to see that by using the new system According to the present invention, after proofreading tightly the text material no longer creates additional work »

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since the text material is directly in the. symbol recognition device can be entered without the need for a perfect copy were",. ■. , "■

Ir: the following example shows the system according to the invention, with which z.zt. the systems used in the υώ government's printing office (ü-overnment Printing Office) compared; From this example it can be seen that the type of pre-root reading of textual material proceeds in a fairly similar manner. In the .folgenden is a table with some correction symbols as they are used by the Druckereioüro uS Kegierung and entirprechende erfinttungs ^ emäße bymbole derseloen to execute i ⁽ 'unJitionen specified: -

1. Öymoole for the proofreading:

otandord correction symbols according to the invention; Korrekturs.vmbole

njj ta f:> o

cinor »e ^ jluijo

rijnzufü; -; endor space JU

one

.Letters exchange XSY - "1

Kicinbuch.staoe J | ^ JL

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The following are examples of letter insertions and urucican white sunk, which at the same time with the correction symbol according to the invention can be inserted:

2. Alphabetical insertions:

r-L

a -Γ
f -J η
O _ ρ
_ -η -C 3. Line printing instructions:
Vogue Bold - jl 11 JVikazeile - 3 20 point

JiS must understand that the correction symbols given above are only given as examples. It ist.einleuchtend that other symbols could be used Dür same functions, the same symbol may also not only for a correction instruction, but also for a auchstabeneinf \ ig _Un g or a line print instruction are used: because of the basic structure 20 with a vertical stroke 22 and $ horizontal bars 2 ^ to 34 · only Gk korrektursyrnbole can be formed, 1st necessary correction symbols in more than one way to be used when the total number of statements, letters insertions and üeilendruckanweisungen is greater. as. 6 * K The way in which a symbol. Can be used is indicated by either

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its position or determined by the correction symbol below, bo is ζ-.ΰ. an insertion of a letter always after a correction symbol. It can therefore be specified that a correction instruction symbol within the calculating machine determines on the basis of the program that the following symbol must be an insertion of a letter. It must also be understood that correction symbols according to the invention can be used not only for alphabetical or graphic insertions, but also for inserting numbers and other graphic symbols.

As will be described below, the calculating machine can further determine, by scanning corrective instruction symbols in locations outside the text, that as opposed to alterations in the textual material

as such a symbol expressly a line or font instruction is to be treated. The use of the invention n-correction symbols are used in conjunction with the following jjoisplox klarec are shown:

± a i'-i / iur '} and / f a ülatt 38 or, 4ü is shown with a text material that lies in the first case with the help of pymbol.on of the "Uruckereioüros der US />; (ü -for morning

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Printing Office or GtG for short) and in the second case with the help of the correction symbols according to the present condition has been corrected. The relevant text material is written in English and roped as follows:

Il

with growing urgency, OS planners are grappling with a momentous international problem: an * increasingly hungry world is turning more and more to this bountiful country for needed food; but the Ud with its surpluses already shrinking, will be unable to fill the food gap that looms ahead.

To fend off the specter of starvation, the planners are pondering: various comoinations of American help and foreign self-help. The choice ^ finally made will hang in part on how much room is left for welfare programs

as Vietnam was spending 'rises ..

For this (iruriüe are attached in .figur 'j 2 to modify ur.a correct the Dehler symbols within the Tt. In the upper left ricke ties sheet' 3ti is

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the designation "VB 2ö χ 11" "is shown. This designation in the GP correction defective language transmits the following Instructions to employees of the printing works such as the typesetters:

"Print the text material in Vogue Bold with 20> points and one Ii rikazeile. "

In iigur ^ the same instruction is given in the upper left corner by <diei correction symbols ty2, i | 4 and 4-6. The symbol k ^ o consists of a vertical line 22 and the presence of the horizontal lines 24 ·, -26,3 ^ and yz and the presence of the remaining lines 2ö and 2k . üa s ivorrektursyrnbol ^ consists of the vertical line 22 and the presence of the horizontal lines 26, 28 and Jk ..

The correction symbolΛ6 consists of the vertical line and the presence of the horizontal lines 26, 28, 3 ^ ^ur * -d

The correction symbol Λ2 gives, as already mentioned, a line setting instruction for the use of "Vogue Bold". The correction symbol ^ k is an instruction for the use of "20 iamkt" and the correction symbol ^ + 6 is a z-setting instruction. for an ¹¹ 11, pika line ¹¹ .

jis can therefore be recognized without further ado that for dj e An gave how the text should be printed, Cor rectification aymDole according to the present invention in its entirety, used in the same way as the ώϋ abbreviations can,

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Referring to Figure 3, the first line of text material on sheet 38 shows an error that is that the lowercase "s" in the abbreviation "us" ^{should be a capital 11} S. This error is identified by the ϊφΟ symbol of 3 parallel handwritten lines below the incorrect letter, indicating that an uppercase "S" should replace a lowercase "s".

As previously indicated, the symbol 36 can be placed below the lowercase letter "s" on the first line of sheet kO in Figure k , indicating that the uppercase letter "S" should be used in place of the lowercase letter.

Furthermore, an error appears in the second line of sheet 38 and kO-, which consists in the fact that the letter "z ^u " should be a letter "a." The GPO method of proofreading would consist in replacing the GPO symbol with the letter ^u z ^tt would be made and that the GPO symbol for the beginning of an insertion would then be inserted on the crossed-out letter.The letter "a" would then be placed over the GPO symbol ⁿ / \ ⁿ .

On the second line of sheet ^ O, the "z" turns into a "a" corrected by the correction symbol 4-8 below

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of the "ζ" is set. The correction symbol 48 indicates that the letter above it should be omitted. The correction symbol 48 is in front of the correction ^ KtursyiTiDol 50 and 52. The correction symbol 50 indicates that the Letter "a" should be inserted while 'the correction symbol 5 ^ expresses that no more letters place of the omitted letter "z" should.

The word "worlds" should correctly be called ^u world "on the third line of pages 38 and 40. The GtO symbol7 indicating an omission is written through the letter" s ", indicating that the word should be called" world " .

On the sheet 40 the correction symbol 54 is inserted, which anglot that only an omission was made This symbol is inserted below the -tsuchötabens "s" in from the word "worlds" and gives therefore indicate that this letter should be deleted.

On the fourth line of the sheet 3 ^nd 40 passes another i / ehl.er on which is the words "needes" una "food" ciaß voneirjanaer would have to be separated by the UAS is GtO oymuojito'ür the üinführung a at a standstill

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On sheet ^ O the correction symbol 56 appears below the letters "α" and "f" inserted in the word "neededfood", indicating that a space should be inserted between the letters 2d "and" f ".

The next line of the text material does not contain any errors on both sheets 38 and kü; therefore, correction symbols are not necessary in either of the two systems.

On the next line the word "ahaed" is misspelled because the "a" and the ^u e "are not in the correct order. On sheet 38, therefore, the U-PO symbol j / f for transposing letters is shown below of the letter "ae".

On the sheet 40, the correction symbol 58 is below the The letters "ae" are used to indicate that it is necessary to swap the letters "a" and "e" is"

in the next line, i.e. in the first line of the second In the second paragraph, further errors occur, which consist in that the word "of" should be inserted between the words "specter" and "starvation", furthermore that the first The letter of the word "riimners" can be an ivleine letter should. The first r'oliler on this ^ hurry wiru. ; .ui dom JJlat

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-Iy-

38 corrected by adding the GPQ symbol y \ for the beginning an insertion between the words "specter" and "starvation" and that the word "of" is above attached to this symbol.

On sheet * tQ the symbol 60 is inserted below the space between the words "specter" and "starvation ¹¹ to lead to the beginning of an insertion, followed by symbols 62, * j4,58 to indicate that the letters" o "and" f "should be inserted between the words" specter "and" starvation " .

On the sheet 38 is also the GPO symbol Zc * for. added lower case letters above the "P" of the word "Planners" to correct this spelling mistake. _; -. _. .._

On sheet AO- the correction of the capital letter ¹¹ P "is indicated in a lower case letter" p ¹¹ by a correction symbol which is placed below the letter "P" and indicates that a lower case letter "p" should be placed in place of the present capital letter .

The next three lines do not contain any errors and are therefore also, not corrected, however, on the last line ₁ He of pages 38 and ^ u. -Should the words "was specting" fol-

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Gender equals: "was spending". On sheet 38, this line is corrected by making the uPO deletion symbol JJr with the letters "s"'and ^u c "and by inserting the GPO symbol S \ for the beginning of an insert after each of these deletion symbols. The letters "r" and "n" are then inserted over the first and second symbols, respectively, of the beginning of an insertion to indicate that they should replace ^{the letters "s" and "c lt, respectively.}

On the last line of the sheet 40, the correction symbol 48 is set both below the letter "s" in the word "worlds" and the letter "c" in the word "specding", while the first symbol 48 of the J \ orrektursymDolen 68 and 52, the second correction symbol 4-8 is followed by the correction symbols 70 and $ 2. These symbols are inserted after the correction symbols 48 and indicate that the letters "s" and "c" should be replaced by the letters "r" and "n".

From this description of the proofreading. of sheets 38 and 40 one can see very easily that the method of reading of textual material in accordance with the present invention the method of proofreading when using

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conventional xs correction symbols, such as those from the printing office of the U3 alloy are used very much is similar.

The symbols according to the invention are very easy to write and can be used in many ways. OO q, eoen these symbols can be used not only for instructions for text changes and omissions, but also for letter insertions, line setting instructions, and insertions and instructions of a general nature.

The schematic block diagram of the device according to the invention for optically scanning the proofread sheet 40 is shown in i'igur 5. The device contains a document handling unit 72, a scanning unit Teine Command and control unit? 6, a cross-connection unit with a shift register 78 »a unit 80 with Feature covers and a unit 82 with logic circuits to combine the work characteristics to characters, also a Encryption generator 84, a main control unit 86 and an input / output buffer stage unit 88.

The document treatment unit 72 essentially consists of a rotatable cylindrical roller and a document feeder unit, which feeds the inputted documents to the roller feeds, uie rotatable roller provides the carrier for the

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Documents and lies next to the scanning unit 7k. The scanning unit 7k is a light point scanner and consists essentially of a cathode ray tube which is controlled by the video control unit. The unit 7k also contains a photoelectron multiplier tube and a pulse generator circuit Document handling unit 72 is directed, which is ready for scanning in this position. The size of the light grid, or the position of a light point on the same, is determined by the size of the input signals on the lines 100 and 102. The lines 100 and 102 connect the keypad units 7k un <(the command control unit 76,

Lines 100 and 102 actually consist of one Defense number of individual line cores, as well as this through the The junction of the cable harness is indicated in i'igur 5 lines indicated generally by thick lines that they are a multi-core cable with a plurality of input and output lines. The horizontal position of the ivathode ray tube.enrasters is determined by the size of the ώίη output signals on the lines 100 * is also determined horizontal size of the hasters also by electrical

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Missing signals determined by the scanning unit via the lines lüü are supplied,.,

The size and. Location of the haste's vertical position aui ae.r cathode ray tube of the scanning unit 7 ^ is through oignaie from the command control unit 76 over the lines Iü2 determined. Furthermore, the position of the haste is regarding the horizontal and vertical direction via the processing lines 100 and 102 back to the command control unit and thence through the input-output buffer stage unit 78 signals to the main control unit that the position or the coordinates of a character are both in the horizontal as well as in the vertical direction together saved with the recognized character itself, soxvie it should be described in the following:

within the scanning unit 7 ^ forms the cathode ray tube the end member of the light spot scanning system which a light beam is emitted, which is directed against that lying within the document handling unit 72 Document is directed. The light beam is suitably ./eise through a between the cathode ray tube and the Document lying lens system aligned. The light beam runs within a haster, which is a bit larger is j as the largest character to be scanned. In the present exemplary embodiment, there is the preferred scanner

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from 30 vertical scanning lines. Inside the scanning unit 7 ^ the photomultiplier tube is connected to a pulse shaper, which is defined in advance Time intervals the output of the photomultiplier tube scans, 'while the cathode ray tube emits a light beam along a vertical z, ei-Ie onto the surface of the document, creates aie Photoelectron multiplier tube a signal that is in accordance with that on the surface of the document.re- ■ flexed amount of light of the light beam is. For this lirun-. de has the output signal of the phot © electron multiplier tube a certain size when the light beam reflects off a white surface area of the document on the other hand, a different output signal is an generated by the photomultiplier tube as soon as the A beam of light hits a black surface part of the document such as the line of a correction mark. Of the Pulse shaper scans the output of the photoelectron multiplier at certain time intervals, thereby scanning the cathode ray along the surface of the document Depending on the white or black state of the surface, pulses of different sizes are generated.

ßei a preferred embodiment of the invention is groping the pulse shaper controls the output of the photomultiplier tube ^ O times in each line. For every light grid that

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the cathode ray tube on the surface of the document throws, therefore generates the pulse shaper 1200 (3O columns with 40 sampling points per column) discrete output signals. The pulse shaper also contains suitable circuits, so that the output signal has a black sampling point indicates unless a certain threshold value of reflected light that is incident on the photomultiplier is exceeded. In this way becomes a digital Output generates j because the output of the pulse shaper always has one of two values: while the first value corresponds to a predominantly black sampling point, the second value corresponds to a predominantly white sampling point.

Therefore, if the light beam coming from the cathode ray tube runs along a "partially black and white surface and the amount of light reflected by the photoelectron multiplier tube is measured, the gate circuit within the pulse shaper generates discrete, digital output signals with one of two specified levels." ten. " The output signal of the pulse shaper is passed via the line 104 of the scanning unit 74 to the shift register 70. Bas .78 shift register is to store bits lüüü able üs therefore, the von'.den scanning output signal generated for the complete scanning of an

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Sign on the document within the bchieo register get saved.

The shift register consists of 1200 Jj'lip-Flop circuits, which are connected to one another in series as shown in FIG. The flip-flop circuits are in 30 vertical columns labeled 0-1, 0-2 ... C-30 and 4u horizontal rows labeled KI, K-2, 11-3 ... ri-4u in Correspondence with the position of the sampling points on the sampling grid is shown. The first line 0-1 consists of the flip-flop circuits FF-I, FF-2, FF-3 ... j? -F-40. . These flip-Hops are connected in series to each other, ie the output of the circuit FF-I is the üingang the circuit FF 2 ,, the output of the circuit FF-2 in turn to the input of the circuit FF 3 · "- ^u Finally, the output of the circuit FF-39 is connected to the input of the circuit FF-40. The output of the flip-flop circuit 40 is connected to the input of the circuit FF-41, which is at the top in the second column 0-2. The circuits FF-41 to FF-80 form a second column and are connected in a similar way by series connection, the output of the circuit FF-ÖO is connected to the input of the circuit FF-oil. Etc., up to the 30th column O -30. There are therefore 30 columns of 40 flip-flops. Each of these 40 flip-flop circuits corresponds to a set of outputs

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touch points along a vertical column on the button. '

The pulse shaping unit measures the output of the photoelectron multiplier in accordance with signals from a pulse generator, which also supplies adjustment pulses via line 106 to shift register 78. The wiring harness 106 is connected to the input of each of the flip-plop circuits FF-I to FF-1200. While a sequence of input pulses according to the output of the photoelectron multiplier is fed to the shift register via line 10i] - the control pulses on line 106 switch the pulse sequence step by step through the shift register. It should of course be understood that the shift register 78 does not necessarily have to be spatially structured in 30 rows with k0 flip-flop circuits each. The flip-flop circuits FF-I to FF-1200 can be designed so that the lip-flop circuits are continuous in a single row from FF-I to FF-12UÜ, or that the same are divided into some other spatial division . It is not absolutely necessary that the flip-flop circuits are designed in accordance with the spatial arrangement of the ßaster. The need to design the flip-flop circuits in a rectangular shape is superfluous because electronic extraction cover ends can be used which are connected to the outputs of the flip-flop electrical circuits regardless of their spatial design.

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Each circuit FF-I to FF-1200 consists of a flip-flop circuit 107, which consists of a bistable flip-flop with buffer amplifiers according to FIG. is, uer cistaoile part aes in J / igur 7 shown circuit is a flip-flop according to the kind Eccles-Jordan and consisting of transistors 108 and HO and the associated switching elements.

The emitters of transistors 108 and 110 are connected to ground. The collector of the transistor 108 is connected to the liasing connection of the transistor 110 via a resistor 112 and a capacitor 114 lying parallel to it. The collector of the transistor 108 is also connected via the resistor 116 to the negative voltage source (-v) and also via the line 118 to the input of the next stage. The collector of the transistor HO is connected to the base terminal of the transistor 108 via the resistor 120 and the capacitor Izz lying in parallel therewith and furthermore to the negative voltage source (-V) via the resistor 124. The collector connections of the transistors I <jb and HO are also connected to the base connections of transistors 126 and 128, respectively. The latter serve as amplifiers to enable the power to control the feature extraction cover panels within the unit 60. The base connections of the transistors 108 and HO are connected to the positive voltage source (ν) via the resistors 127 and 129, respectively.

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Furthermore, the base connection of the transistor IQS is with your capacitor 130 is connected, which in turn, with the Output line of the previous transistor stage is connected. More precisely: the output line · of the upstream jflip - ^ 'lop-lo? is with the subsequent flip ■ flop otroru circle over the. Capacitor I30 connected} an exception however, the flip-flop circuit FF-I represents, in that the capacitor of this circuit is connected to the output line 7 ^ The outer rsasis connection of the transistor 110 is connected to connected to capacitor I32, which in turn is on the line 106 lies. This line transmits the adjustment pulses for the shift register "8," its memory content in a chain from one level to the next.

The collector of the transistor 126 is connected to the output line 13 which feeds the various feature masking elements connected to a particular stage of the shift register 78. In a similar way, the collector of the transistor G12b is connected to the output line I36, which is also connected to various features a cover panels corresponding to the relevant stage of the shift register Y'ä. The jimitter connections of the transistors lk: 6 and I2d are via corresponding resistors 138 and

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rait connected to the positive voltage source ( V) , the collectors of the transistors 126 and 126 are also connected to the negative voltage source ( -V) via resistors 142 and 144, respectively.

As has already been mentioned, the i'lip-flop circuit consisting of the [transistors 108 and 110] bistable, i.e. either transistor 108 or 110 is conducting d while the other is off - below that The prerequisite that transistor 108 is conductive is transistor 110 due to the voltage at the collector of the Transistor 108 blocked. This tension is running to the resistive divider, which consists of resistors 112 and 129, whereby the transmitter-ttase separating layer of the Transistor 110 receives a negative bias, üobalo. however, transistor 110 is in the conductive state, giot similarly the collector voltage of the "transistor 110 has a negative bias voltage of the transmitter base separation layer 108 so that it is turned off.

It is now assumed that the transistor 110 is conductive: an incoming control pulse at the capacitor I32 will then give the limitter base separating layer of the transistor 110 a negative bias voltage , as a result of which this transistor becomes non-conductive; the related change in

10 9 8 19/1391 Qad

The voltage at the collector of transistor 110 then brings transistor 108 into a conductive state. Should however, the transistor 110 already has an input pulse-on . processing 10 ^ must be switched off before a control pulse den.kondensator I3Ü reached, the transistor llü driven even further into the · ÄDschaltregioii and animal state, the i-'lip-.e'lop-o-circuit would remain unchanged «, is However, the transistor IO8 is conductive and an input pulse comes at the capacitor I3Ü, the transistor 108 switched off, whereby the voltage rise at the 'ivollecfeor den Transistor 11U turns off, but the transistor ought to Ιυο be switched off, an on iondensator I30 ankoiiiienüer input impulse only the transistor 10 continue to travel into the disconnection area; the ^ The state of the flip-flop circuit would therefore remain unchanged.

From this you can see the following: Every time a control pulse is brought to the line 10b, the relevant- de ^ 'lip-Ji'lop-ütrornkreis 107 within the shift register in the direction that the transistor 110 is turned off is: If the transistor 108 of a certain stage of the shift register is switched off, it is set to Or and one Pulse on control line 106 brought into the conductive state; however, if it is already conductive, its switching state remains unchanged.

109819/1391

The previous stage is then used by each subsequent flip-flop stage 107 received .-- As soon as an impulse on the line from the previous stage arrives, the transistor 108 of the next stage is activated by the input pulse on Capacitor I30 switched off. It should be understood that corresponding pulse delay elements between the output of the previous stage and the input of the next following stage i.e. before the condenser 13Ü are switched on so that the flip-flop circuits 107 switched by the control pulses have enough time to Stabilize before they can receive an input signal from the previous stage.

Whenever the transistors 108 of the flip-flop circuits are switched off, this is an indication that one is black This point on the document has been scanned. However, in all cases where transistor 108 is conductive this is an indication that a white area on the document has been scanned. However, it should be understood be that this mode of operation can also be reversed, if certain requirements for the circuits so require. However, for ease of reference it should be understood be that as soon as in a certain stage of the shift register the transistor 108 is conductive, or the transistor 110 is turned off, this stage is in a white state. However, as soon as the transistor 108 is switched off

10 9 8 19/1391

and transistor 110 is conductive, it is assumed • that this level is in the "black" state »·

The collector output of transistor 108 also drives. the transistor 126, the _β generates an inverted output signal on the line 134. This signal will be driven diemit each flip-flop * connected Merkmalabdeckblenden stage "In the same way, the output voltages at the Kollector of the transistor are inverted by the amplifier 128 110 and over the Lines 136 are fed to the feature covers connected to the relevant stages of the flip-flop circuits of the shift register.

as can best be seen in Figure 5, that is Shift register 78 via a 1 * 4-5 cable with the feature extracting cover panels 80 connected. The cable 1 ^ -5 contains the output lines 134 and 13 £ «Of all flip-

'r

Flop circuits of the visual register, combined appropriately, lead the lines 134 to a plurality of data cover plates which are located within the unit 80. As many feature cover plates are provided as _: Features must be present in order to recognize a character switched through the shift register y8. Each feature extraction cover plate is provided with a plurality of flip-lop current circuits of the shift register Yö ver-i ·

ι 109819/1391

WHEEL

bound. The output signals of these cover panels get to the flip-flop circuits either via lines 134 or lines 1 3 $ , respectively. according to what kind of feature is to be recognized: if a character is to be recognized by the combinational presence of various features, the recognition circuits are connected to lines 13.4 of the flip-flop circuits of the shift register 78; the absence of various features is to take place, this is always done by scanning the lines 136 of the corresponding flip-flop circuits «

A feature mask is shown in FIG. Each cover screen consists of a plurality of resistors 146, which are connected on one side to the output lines I34 or 136 of the various flip-flop stages of the shift register 78. The feature mask also includes a threshold gate circuit comprised of transistors 148 and 150 and associated switching elements. It must be understood that various combinations of resistances can be used for a decorative decorative panel. ^ ₀ must e.g. in no-

As a rule, 4 resistors can be provided as shown, but any number of resistors from ü-6u can be used for a Werkmalabdeckblende. In most bal len but a ciurehsurmit customary filler panel contains be-

109819/1301

See ^ and 15 such resistors, "The resistors 146 can be staggered with regard to their size, so that with regard to the signal size at the base terminal of the transistor 148 a larger value can be assigned to certain more important subcomponents of a factory. The transistors 148 and 150 are The two emitter connections of the transistors 148 and 150 are connected to earth via a resistor 152. The collector of the transistor 148 is connected to the negative voltage source (-E) via the resistor 154 and to the base connection of the transistor via the resistor 156 150. The base connection of the transistor I50 is also connected via the "resistor 158" to the positive voltage source (K). Furthermore, the collector of transistor 150 is connected via resistor 160 to the negative voltage source (-K) Voltage source (&) connected. The collector of transistor 150 is also connected to the positive voltage source (ji) via the understand l64. The transistors 146 and 15-Ö receive a bias voltage via the Sparai connections (K) and (-E), so that. Do not conduct the same until the resistors 146 "receive several input signals for overcoming the previously defined threshold value, if, therefore, a certain masking screen consists of 4 resistors and is set in such a way that it responds to * input signals at min- -

1 ö 9 8 1 9/1 3 9 1

'■ .- ■■■■ BAD ORK3INÄL

at least 3 of the k resistors 146 responds, then the cover panel must have a slightly lower threshold value than the sum of the input signals at 3 of the 4 resistors 14-6. As soon as the circuit 3 receives input signals, the emitter base separating layer of the transistor 1 ^ 8 receives a bias voltage and therefore becomes conductive. This forces transistor 150 to conduct, producing an output signal on line 162. Line 162 is connected to the collector terminals of transistor 150, the output of which is passed to the logic power circuits. This is located within the unit 82 for combining the individual features into complete characters. As can be seen from the figure, the factory painting cover panel unit 80 is connected to the unit 82 via a line 166; this line contains the output lines 162 from all threshold gates within the feature masking unit.

The following explanations relate to FIG. 9, in which a character cover panel is shown schematically. The figure shows all of the feature maskers used to identify the letter "H": it shows the manner in which the shift register? 8 is scanned to recognize the letter "H" when such a letter is on the document is located and is swept by the cathode ray of the scanning unit 7 ^.

The diagram consists of 30 columns each containing O ^ fields 168. de-

109819/1391 ^BAo OntQ _INAL

of the field represents one stage of the flip-flop current circuits of the shift register ″ / S to which the resistors 146 of the feature masking panels are connected. The designations of the columns GI to C-3Ü and the designations of the rows fi-1 to H-40 therefore correspond to the individual rows and rows of the shift register 78 according to FIG. 6; the field 168 in column CI and Heine HI corresponds z.ß, the flip-flop circuit FF-I in Figure 5, "Therefore, when the Merkmalabdeckblende for a ¹¹ H", the detection of either a predominantly white or black patch on the point in question of the document, one of the resistors 146 of the feature cover is connected to the line I34 or I36 of the flip-flop circuit FF-I. A feature cover is used for the letter "H" as shown in the illustration in FIG The letter "H" consists of a plurality of subsections or sectors 170, 172, 174, 176, 178, 180, 182, 184, I86 and 188. Each of these sectors of the letter "H" is "5 fields long and 3 fields wide and therefore comprises a total of 15 fields. This means that within the letter "H" in FIG. The sectors Γ / ϋ to 1? 6 extend in a vertical direction; and form the left vertical strioh of the

10981 9 / i

- 38 - 1S49860

Letter ¹¹ H "" Sectors 178 and 180 extend in the horizontal direction and form the middle bar of the letter "H", while the sectors 182 to 188 extend in the vertical direction and make up the right vertical line of the letter "H".

The letter face "H" also has a taar of sectors 190 and 192, each of which makes up 2 fields in a square. Accordingly, the animal feature cover panels for each of the two sectors contain k resistors 14-6, which are connected to the output lines I36 of ^ stages of the shift register 78. The sectors 190 and 192 correspond to white areas on the document, so that the letter aperture ¹¹ H * requires not only the detection of black zones on the document corresponding to the printed letter "H" thereon, but also the detection of white zones between the vertical ones Dashes and the middle slash of the letter ^U H "is necessary.

a corresponding Metkmalabdeckblendaeinheit 80 is provided for each illustrated sector of the letter ^{screen W} H ^{M according to FIG.} the sector 170 the schematic representation of a feature cover with 16 resistors 1 ^ 6 each according to Figure 8. Each of the fields I08 inner halo ties sector 170 corresponds to a resistance 1 ^ 6 in such a Werrnalabdeckblende. For example, the resistance Iko for «as inner

109819/1391

half of column C-21 and field 168 lying below fi-11 is connected to the output line of the flip-flop circuit FF-811. Conversely, field 169 within de? Column C-21 and the row R-12 indicates that a further resistor 1 ^ 6 to the output line I34 of the flip-flop circuit FF 812 is connected to the erkmalabdeckblende h. In a similar way, all sectors 1 - 2 to 188 Merkraalabdeckblende. Each 15 resistors 146 can be seen that they are connected to the various output lines IJk of the flip-flop circuits within the shift register 78 in accordance with the position of the fields in FIG. l) Sectors 19O and 192 correspond to feature masking panels, each with ^ J input resistances 1 ^ 6. For example, field 168 within column G-I5 and row H-15 shows that the first resistor 1 ^ 6 within the cover panel corresponding to sector 110 is connected to output line 136 of flip-flop circuit FF-57, viobti the latter is in column G-15 and row R-12 within shift register 78 *

while the cathode ray tube within the scanning unit 7 ^ scans the letter "H" on the document, the ^{electrical signals generated by scanning the letter 11} H "are switched through the shift register 78. As soon as the" resulting "signals ^{by scanning the letter 11 H} in accordance

109819/1391 ■ original bathroom

with the fields according to FIG. 9 within the shift register are stored, each feature faceplate should be in accordance with sectors 170 to 192 are excited and emit an output signal via the respective lines 162.

It is sufficient, however, that some of the original cover panels are excited, ie. it is not absolutely necessary that all sectors of the letter "H" respond at the same time. If, for example, one of the two sectors 170 or 172 does not respond, the letter "H" is nevertheless recognized by the recognition of a sector. Therefore, if the printing of the letter ^U H ^U on the document should be incorrect with regard to one of the two sections of the sectors 170 or 172, the letter "H" can still be recognized. Similarly, failure to recognize other sectors does not completely prevent recognition of the letter "H", as will be described below.

The output signals of the feature masking panels corresponding to sectors 170 to 192 are routed to the conventional combination unit 2 via the cable 166. This unit 82 'consists of a plurality of gate, tree and logic circuits to transform the output signals of the various feature masking panels into letter signals. In the example of the letter "H", suitable logic circuits are used to electrically evaluate ^{the following (calibration to recognize the letter "ri 1!"):}

109819/1391

H = (S 170 + S 172). (S 17 ^ * 3176). (£ »178 + $ .180) _r (S 182 + S 184), -. (S 186. + Sl88). (S19Ü; S 192)

This is a Boolean equation which is solved within unit 82. The designations S 170 to S 192 indicate that an output signal for issuing the addressing of a sector is on the respective line 162, which is connected to the corresponding feature masking panels or sectors 170 to 192; While the ¹¹ + * symbol ^{indicates an "or 1} - puncture, the". "Symbol indicates an" and "function. From the above equation, it can be seen that the following conditions must be fulfilled within the unit 82 so that a scanned letter ¹¹ H "is recognized: ·

1) Detecting the presence of one or both sectors 170 and 172 *

2) Detecting the presence of one or both sectors 174 and 176. "» "'.

3) Detecting the presence of either or both Sectors 178 and 19.O.

4) Detecting the presence of one or both sectors 182 and LöW

5) Detecting the presence of one or both sectors 186 or .188.

6) Recognizing the presence of the two sectors 190 and 192,

.-...- ■ - ■■ '. ■ - ■ * - ■ ύ Η "'-ΓΓ-.ττΓ" «.

BATH ORIQINAL

109819/1391

Recognizing the letters by corabinizing the individual features triggers a signal within the unit 82 which is fed to the encryption generator 84 via the line 194. Those arriving via Jueitung 194 Input signals are from the encryption generator 84 transformed into a binary representation.

The output of the encryption generator 84 is connected to the input-output buffer stage unit 88 via line 196. The line 96 consists of a plurality of line branches which conduct the letter to the buffer stage unit 88 in parallel with one another. The buffer stage unit 88 serves as an i ^v instructive times coupling unit to route signals on a time division basis signals to and from the main control unit 86th The main control unit 86 is preferably a general purpose digital computer which is programmed according to the requirements of the proofreading device according to the invention.

The dinar encrypted letter signal is momentary fed to a memory within the main control unit 86. The command control unit? 6 generates the x / y coordinates of the piece of surface on the Document on which the letter "li" was touched has been and leads accordingly

10 9 8 19/1391

via the χ and y coordinate lines 198 and 200, respectively to the 'i-ufferstufeeinhe.it 88. This means that the place, at which the cathode ray tube has scanned the document, is determined by the χ and ϊ coordinate, and that corresponding electrical signals are passed via the lines 198 and 200 into the t-buffer unit 88. This unit 88 transmits these coordinates to the main control unit 86 via the newspaper 212 not only the letter to be read, but also its location - within a short-term memory of the main control unit saved. It should be noted that the buffer stage entity 88 also has instructions via line 20 * 1- to the command control unit. 76 supplies. The main control unit 86 sends command signals for the entire system via line 202, as mentioned earlier, is the buffer stage unit δδ a multiple coupling unit, which the traffic between the main control unit 86 and the Best. of the system controls.

In the following, Figure 12 will also be discussed, which schematically shows a combination of feature capping ends for recognizing and identifying correction symbols according to the present invention shows how already in FIG. 9, FIG. 12 shows, in the form of a diagram, traditional cover panels, but in this case for identification of correction symbols on relevant documents. Of the vertical line 22 of the correction symbol 20 consists

10 9 819/1391

from 15 sectors h-1 oisw-1.5. -Each of these sectors

is 5 fields long and 1 field wide and has an elongated shape in vertical directionj the sectors lie essentially on the center line of the haster. The upper left bar 24 · consists of the sectors T-1, T-2 and T-3-Der upper right horizontal line 26 consists of the sectors T- ^, T-5 and Ϊ-6. The left middle horizontal Line 28 consists of sectors G-I, C-2 and C-3. jjer right central horizontal line 30 consists of the sectors C-4, C-5 and C-6. The lower left horizontal stroke 32 consists of sectors L-I, L-2 and L-3. The lower right horizontal line 3 ^ consists of the sectors L-4, L-5 and L-6. Each of the horizontal bars 2 ^ to 3 ^ constituting sectors T-I to L-6 is in horizontal Hichtung elongated and with the width of one field has a length of 5 fields.

Each of the sectors M-I to H-15 represents a Hermal cover panel with 5 -üingangswi of stands 14-6. These resistors are with the output lines 13 ^ - the different The stages of the shift register 178 are rounded in accordance with the position of the fields according to FIG. "each the oectors T-I to T-6, G-I to C-6 and L-I to L-6, the horizontal lines of the correction symbol 2ü

10 9 8 19/1391

make, corresponds to a pair of Herkmalabdeckblenclen with 5 resistors Ik6, the resistors 1 ^ 6 of the first set of these werkmalabdeekblenclen - in accordance with the corresponding sectors of the correction symbol 20 - are connected via the output lines IJk to the corresponding stages of the shift register 78, however the resistors 3Λ6 of the second set of these inerkmalabdeekzüge are connected across the output lines I36 of the corresponding stages of the shift register? 8. jis therefore provides feature masking screens for both determining the presence and the absence of each sector within the horizontal bars of the correction symbol 20.

The original cover panels, which are connected to "black" areas or to the corresponding stages of the flip-flop circuits via the lines IJk , generate an output signal to indicate the presence of a sector when the corresponding area on the document is predominantly black .. The presence of a "black" sector on the output line 162 of the feature shutters 162 shall be indicated by its reference number in the following equations. The addressing of the sector TI means that a certain black area of the document has been touched - the presence of this sector should therefore be in the table

103819 / 13B1

Equation can be denoted by ^{11 TI ".}

On the other hand, the Merkraalabdeckblende connected to the lines I36 indicate _f the absence of a certain feature on the document; this means that they respond to predominantly white areas of the paper. However, in this case, that is, if z, B. the oektor TI responds to predominantly white areas, the output signal generated by the feature cover must be labeled TI. The signals generated by the feature cover panels, which serve to indicate the presence of a black sector, should therefore generally agree with the designation of the sector; however, in those cases in which the feature masking plates detect the absence of black zones or the presence of white zones and, based on this fact, emit a signal, this signal with the designation of this sector should be designated with a horizontal line above should be used throughout in the following u-calibrations.

A horizontally extending sector Τδ is provided above the horizontal sectors TI and T-4 and the upper fields of the vertical sectors MI, M-2 and i ^{v i-3.} This sector is I3 fields. long and 1 i>'wide. and therefore has exactly the same width as the upper «411

1098 19/139

BAD OHlQlNAL

dashed of the correction symbol 20. Furthermore, the sector is provided at a distance of one field above the correction symbol 20. Below the horizontal sectors L-3 and Jb-6 and the lowest fields of the vertical sectors M-13 ,. ti-14- and ä-15 , a horizontally extending sector DZ is provided ^ which is also at a width of one field, -13 fields long. The sectors TZ and DZ are each connected to a feature extraction cover which has 13 resistors 146 connected to the base connection 148. Each of the resistors is connected to the output line I36 of the corresponding stages of the shift register 78. The sector TZ extends from the column C-IO to G-22 within the series H ~ 6j for this reason the resistors 146 are with the individual stages FF-366, FF-406, FF-446, FF-486 ... and FF-846 connected. The resistors 146 of the feature blinds in connection with the sector BZ are connected to the flip-flop circuits FF-394, FF-434 ... and to FF-874.

Along with the horizontal lines 24 and 28 and the vertical line 2 '<L , a sector L ^ is provided which is 3 fields long and 2 fields wide. Another sector KZ is provided between the horizontal lines 30 and 34 and the vertical line 22. This is also 3 fields long with a width of 2 fields. The sectors J-.Z and IiZ are connected to the corresponding feature maskers}, which have 6 resistors; the wi ~

'· ■■; 109819/1391 "bad

resistors are via the lines I36 with appropriate Stages of the shift register? 8 connected -as in the following to be explained further, the sectors TZ, ßz, LZ and HZ guarantee that the oeim scanning of the Correction symbol resulting signals when passing through the shift register 78 are in the correct order for the letter identification to occur correctly.

As mentioned earlier, the herkmalabdeckblender wertmäiBig different resistances may have, however, ns, it is provided that the resistors 1 ^ 6 are substantially equal within the herkmalaodeckblenden for the individual vectors of the correction symools 2U. The target gate circuits connected to the individual vectors have a suitable bias voltage so that they respond to a total of 5 fields by receiving at least 3 signals from the bchieo register. So if, due to the scanning by the cathode ray tube, a total of 5 fields within an oector responds to black, the ochwell gate circuit switches within the feature cover panel, sends an o signal on line 162 and thus indicates that the oector is present . Normal variations of the cross-section of a pencil or a .b'ccier haoen

10 9 8 19/1391 ^A °

therefore in no way means that the gate circuits of the do not address relevant sectors "

The sectors TZ ", LZ,; fiZ and BZ are control sectors. As has already been mentioned, the feature covers corresponding to these sectors serve to prevent imprecise identification of a feature within the symbol cover. The feature covers of these sectors TZ and HZ are designed so that the I3 resistors 146 are equal in value and that the corresponding gate circuit ρ responds when receiving at least 10 signals via the lines 136 from the 13 stages of the shift register, i.e. when the cathode ray tube 10 white fields out of a total of 13 fields of this Sector scans, the i'ierkmalabdeckblende responds, with the sectors LZ and tiZ in connection, i4erkmalabdeckblende are designed so that of the 6 fields at least k fields when the sector is scanned by the cathode ray tube on üruna the threshold gate circuit to white, have to speak before the monument cover panel responds, including features The ends of the sectors LZ and Hz indicate, when excited, that the color of the corresponding fields on the document is predominantly white. This condition should be represented in the following equations by a line (in this case TZ) above the designation of the scanned sector. Similarly, the

BAD ORIOINAL 109819/1331

use of a dash above the designation έ.ο. ΐ-l) also- mean that those features cover / slides in the sectors of the correction symbol 20, which have the white lines I36 with the ü'lip-irlop circuits of the Shift register 78 are connected, on and the absence of the sector concerned have been excited "

The lines 14 to 3 ^ of the correction symbol 20 are recognized by the logic circuits when recognizing at least one of the 3 sectors within each horizontal line. The upper left segment 2k ca3, denoted below by TL, is recognized when the relevant animal feature cover panel is excited with respect to one of the vectors ϊ-1, ΐ-2 or Ί'-3. In a similar way, the horizontal lines 26, 28, 30, 32 and Jk (hereinafter referred to as ΐϋ, UL, U LL or ο IjH) are positively recognized when at least one of the sectors is addressed by the corresponding MerkmaiaDaeckDlenden.

With regard to the recognition and the identifying aes correction symbol, are the circuits of the unit, 82 to combine of the characteristics in accordance with cten ßoolean Equations acted out as follows:

10 9 8 19/1391

the presence of the horizontal bars:

(1) TL = T-I + Ϊ-2 + T-3 ■

(2) Tfi = ■■ T-4- + T-5 + T-6

(3) GL = G-I ■ + G-2 + G-3

(4) CH. = C-4 ■ + G-5 + G-f;

(5) LL * = L-I + i, -2 + L-3

(6) Lii = L-4 + L-5 + 1, -6

Freestyle the absence of the horizontal

(D I ¹ L (2) Td (3) M. QR (5) LL (6) LH

= ■ 0 ^ 4. (JI5 " 0 ^

= L-4-. L-5. L-6

The vertical bar 22 consists of 5 groups of 3 sectors each built up, ^ s therefore 5 vertical parts of the line ao / 5 are probed, which in the following rait V-I, ¥ -2, v'-3, ν-4 and ν - 5-.designated should be vferden. V-I should be anv / eser.d if the ^ eikmalabdeckDlende of itgena one of the sectors h-1, w-2 or i'i-3 is excited. In £ a.eicher vieise the rest speak vertii-o.lon Tcila pieces if at least one of the vertical sec-

109819/1391

gates of these sections. These sections are therefore recognized within the unit 82 of logic circuits which are in accordance with the following ßooleanschen Equations are structured as follows:

(1) V-I = M-I + 14-2 + M-3

(2) v-2 = Hk + M-5 + M-6

(3) V-3 = M-7 + i'l-8 + M-9
(Z _4. ) V-4 = M-IO + M-Il + w-12
(5) _v _5 = M-13 + M -14+ M-15

if each of these vertical sections V-I ois v-5 is absent, so the vertical cross-section is 22 (in the following referred to as V) present in its entirety. The recognition of V can therefore by the following. Equation can be given:

V = v-l. V-2. V-3 '. V-4. ν-5

In order to ensure that the presence of the vertical line or the combinatorial presence and absence of the horizontal lines I ¹ L ₁ TH ₇ GL ₁ UHjIiL and LH is correctly recognized, a control signal H should also be in accordance with the following Boolean Equation can be generated:

ή = TZ . bZ. JbZ. . HZ

10 9 819/1391

^BAD «te

From this it can be seen that for recognizing the presence a correction symbol through the label cover ends not only must the vertical bar 22 be absent, which generated one within the logic circuits 'Electric signal corresponds, but that also a control signal Κ is necessary, which is also within the Lo- ■ electrical circuits is generated. "If both H and ν signals are present, this is an indication that the correction is symool, link the following equations as an example you can see how the logic circuits are structured like a tree, with the following correction symbols can be recognized:

νΐ) χ = a .. V Γι if
ο XJ-J -. Eq ! .LL . TH " GH . LK U) £ = κ -.- V . TL. . GL . LL . TH. CR . LK V ο TL Y CL . LL .TH. GH . LH V ^: . TL SEE . ΊΣ . TH. GK "Lk (5) E = H. V . TL ο GL . LL . TH .. GH . LR (6) 3t = * V . TL . Cl, . LL . TH. GH . LK ("7) 3 ^ ri ..- \1 . Tl ' . GL .LL . Tk. GH . LK Cb) J =. κ. V . TL . GL “LL ν Ϊ.Κ'ζ GH . LH (9) t | = κ.; ο TL. CL. . LL . ΊΉ Ό UR .'EE

(1O) J = xi ο V. TL _:. UL, LL. TH ο GH. uti.

From this we can see that a correction symbol has been found as soon as electrical signals from both H and V are present. From these equations one can further-

109 8 19/139 t BAD

ner recognize that wherever a certain horizontal line of a correction tool is available, the corresponding The designation of the stroke appears on the right-hand side of the above equation, "those strokes, however, that appear in the If the correction symbol does not appear, it appears on the right-hand side of the above equations in the form of the corresponding reference number with a prime over it "This means that e.g. whenever the top left stroke 26 is present in a correction symbol on the left side of the equation, the Designation TL appears on the right-hand side of the equation ·; however, if the upper left line is not present, appears regularly the symbol TL on the right-hand side of the equation.

As soon as the unit 82 has recognized a correction symbol, an output signal is passed over the line 19 ^ · to the encryption generator . The encryption generator 84 transforms the signal arriving via the line 194 into a binary-coded signal and forwards this binary signal via the line 1 ^ 6 to the buffer stage unit 8.

The command control unit 6 also sends binary signals over the lines lyö and üüu which correspond to the original coordinates of the correction symbol on the document. The buffer stage unit 88 then transmits both the correction symbol itself and its original coordinates χ and y i: n to the license control unit 66, where they are stored.

10 9 819/1391 ^ - -

^BAD om _QINAL

The main control unit 86 also sends command signals to the command control unit and the control unit 38 via the line ZOk-. The size of the Äotastraster must be changeable in cases in which the correctursyijibol is not subject to any particular limitations with regard to its size. therefore, if the correction symbol has been written too small, the haste generated by the cathode ray tube is reduced. On the other hand, the dimensions of the iiaster are increased if the correction syinbol is too large.

A general flow of operations within the symbol recognition device according to the invention according to FIGS. 1 and 5 is shown schematically by the flow diagram in FIG. From this figure it can be seen that the loinktionweise of the invention according to the Bubble recognition device goes on in the following ways:

Proof-read document is placed on the cylindrical roller within the document handling unit? 2 for scanning. As soon as the document is in the correct position, the document handling unit sends a signal via the line 206. the scanning unit? 4- and indicates the fact that the Do ^ utnent in the correct position is. If the .document is not in exactly the right position, the

109819/139 1 bath

Feed device of the document handling unit 72 see above long controlled until the document is correctly inserted ο

The cathode ray then begins in the scanning unit Find the first line of the document to find the first line of typed or printed information determine the cathode ray tube touches aer sampling continue with this specified öchema until the first line row is found.

As soon as the first line is found, the horizontal and vertical position of the cathode ray via the command control unit 76 and the buffer stage unit 86 to the Main control unit transmitted. Once the main control unit 86 the exact location of the first line on the document has received, the same gives the scanning unit the command to start scanning using a predetermined Letter schemes at the given horizontal and vertical position of the document! in the following with x / y j \ oordinate marked) to begin. The scanning unit then begins scanning the letters at the x / y coordinate. if the scanner does not recognize a video character, which would mean that there is no letter in the first position, based on commands from the command control unit, the

■ r-

109819/1391

549860

Letter abutment moved further along the line.

However, once a video character has been discovered it will the x / y coordinate of the letter via the command control unit ' 76 and the buffer stage unit 88 to the main control unit 86 transmitted »At this coordinate the letter is then scanned by the cathode ray tube and that Output signal of the photomultiplier tube over the line 104 · passed to the shift register? 8. Once the letter identified and recognized by units 80 and 82 are electronic signals of this letter and its x / y coordinate within the main control unit saved. -. '■

Jüie command control unit gives corresponding commands the scanning unit, so that the latter with the letter scanning continues along the line to its end «At the end of the line, the scanning unit is controlled by the command control unit ? 6 ordered, below the one just scanned Line to perform a correction symbol scan. The scanning unit continues with the correction symbol search until the video signal is interrupted. JJies means that a correction symbol is present within this correction line «The x / y coordinate of the relevant correction symbol is then displayed to the -Hauptkontrolle-i-nhe.it '"and the scanning unit

109819/1391 · ■ BAD-ORIQlNAL

i549860 St

starts scanning this symbol. To determine the correction symbol "found on the relevant line, the scanning unit Ik sends the output signals of the thoto multiplier to the shift register. The recognition device then sends the binary coded signals of the correction symbol to the main control unit so that it is stored there at the same time with its x / y coordinate. The command control unit 76 then commands the scanning unit to continue scanning the correction line to the end; the call error control unit then commands the scanning unit to begin scanning the next line of text material. This process of scanning along a line of text material and then the part of the document below that z> rush in search of Korrekturanv / eisungen will continue step by step. at ünde the document a final signal is within the main control unit if produced and the Dokumentbehanalungseinheit? 2 is the ßefefeh l. to initiate the document and. to bring the next document in ax correct position for optical scanning.

As was already mentioned before, the main control unit is a military biokdigitalcomutor. The information regarding the letters along the lines of the text material and the

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lvorrelttursjmbole are temporarily ^{stored in a memory 1} «. The programming of the main control unit causes the lines of text and the corresponding correction lines to be mixed up and the correction operation is carried out in this way the hackling machine is achievable.

As can be seen from this, the x / y coordinate of the first letter in the first line is fetched from the short-term memory when the document code signal arrives. The x / y coordinate of the first correction bar is then also extracted from the short-term memory. Subsequently, the two ivoordinatensatze of character and Korrektursyiaoole compared "Should the two Koordinatensä.tze not correspond to each other or in other words when feststehtj that the" x / y coordinate of correction symbol not iiähe or _o below the x / y coordinate of the letter reads, then the text letter within the text does not have an error and does not have to be changed. Then the x / y coordinate of the next letter is searched for and the coordinate sets of the correction symbol are compared with this letter in the same way and in the same way. However, if there is a

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has been made the same at which the two sets of coordinates of the letter and the correction symbol are within specified limits, i.e. if the correction symbol is more or less below the letter, the correction symbol is fetched from the memory and the necessary Correction operation performed as well as indicated by the correction symbol is specified. The result of the correction operation is stored in the iiid memory together with the previous one Letters of the already corrected text saved, after the corrective operation is fully carried out Is finished, the final operation will be in accordance in it the correction symbols of the font setting instructions carried out,. The calculating machine lays on this information the number of letters per assignment, ozw. oie Division of letters and u / places within the zeiia for a given column width for the «-Jia.erga.De aes Textmateri & ls firmly followed by the textile material is issued from the hacking machine.

can see from this that both a new and improved method of proofreading, as well as a new one and improved letter recognition device has been shown is.

The present invention allows the proofreading of

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of printed or typed text material for direct input into a letter recognition device The necessity of a new machine copy bz-ΐ- ;. Imprint of the entire sheet in a fair copy has therefore become superfluous «,

.furthermore, this requires a proper procedure Proofreading does not take longer than already known procedures for proofreading. Finally, the corrections according to the invention are rsymoole very easy to write and at the same time very easy to recognize by a scanning machine * ms proofread documents can therefore be directly placed in a letter recognition device, both the text material and the changes made can read ».

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Claims (1)

549860 Claims l) Proofreading procedures for documents containing textual material to ü.ingaoe in bymbol recognition in front of directions, characterized in that, from a set of correction symbols, each of which corresponds to a correction instruction, insert individual correction symbols by hand into the near the incorrect text passages, furthermore, that then the text material provided with the corresponding correction symbols directly into an oymboler identification device introduced wirrf imo "op« ^ or e'er S ^ - Bolt recognition device a corrected text is worked out without the corrected text material again copied or rewritten <l) üymDol recognition device according to aem proceeding from claim 1, characterized in that it contains the following units: a) Units / 2,7 ^) for inserting and scanning the document in certain places. b) a unit (7t>) to control the point that of the scanning devices on the document ctb.p; etastet wire and for generating -electric oi ^ nals according to the 10 9 819/1391 appropriate scanned point _{or similar} c) units (78, 80, 82, 84) on the Aotasteinheit 74 address, to identify and determine the scanned - th lines and for generating electrical signals in Dependency of the scanned lines. d) a Äechenmaschlneneinheit (86) for storing the electrical signals, both of the scanned characters as well as their positions on the document and to generate a text in which the corrections according to the correction symbols used are taken into account, 3) symbol recognition device according to claim 2, characterized characterized in that the correction symbols in their form are set and consist of a vertical and an or consist of several horizontal lines. H-) symbol recognition device according to claim 3, characterized in that all correction symbols are derived from a basic structure ZO , further that the iirundstruio door 20 consists of a vertical line (22) and 3 tars each (2M - 2O, 20-30, 32-yO consists of horizontal lines, one pair each at the top, in the middle and at the bottom of the horizontal line and that the BAD ~ ™ - " ^lfti - 109819/1391 different correction symbols through combinatorial attachment or Absence of horizontal strokes are formed. 5) bymbol recognition device naöh one of the above claims, characterized in that the correction symbols are attached below incorrect text passage. 6) Dymool recognition device according to claim 5 »characterized in that that in addition to the correction symbols for correcting erroneous text passages, further correction symbols are used, which are attached in the r-i Nahe des l'extmateri & ls are "transmit line setting instructions" 7) symbol recognition device under the above claim thereby characterized in that the sheet machine unit (ob) contains a sub-unit which is used to determine the correction reference compares the positions of the letters in the original text with those of the handwritten correction symbols . 8) üymüolerkommunikationsvorrichtung according to any one of the above claims indicated that the following correction Symbols are provided: t- [b E A TUVT ~ b * I VT -Γ -k.-F.-L ^ -b -E = F = L 109819/1391 3ΪΪΪ111 Ξ Blank page