US2552156A - Numbers reading device - Google Patents

Numbers reading device Download PDF

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Publication number
US2552156A
US2552156A US735146A US73514647A US2552156A US 2552156 A US2552156 A US 2552156A US 735146 A US735146 A US 735146A US 73514647 A US73514647 A US 73514647A US 2552156 A US2552156 A US 2552156A
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United States
Prior art keywords
digits
numbers
rank
counter
screen
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Expired - Lifetime
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US735146A
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English (en)
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France Henri De
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Individual
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/22—Character recognition characterised by the type of writing
    • G06V30/224—Character recognition characterised by the type of writing of printed characters having additional code marks or containing code marks
    • G06V30/2247—Characters composed of bars, e.g. CMC-7

Definitions

  • My invention relates to devices for identifying Signs (letters, figures, drawings, etc.) marked on rigid or flexible supports, in particular on bonds, notes or the like, representing a monetary value, in particular with a view to avoiding the possibility of the same number being carried by two different bonds or notes.
  • the chief object of my invention is to provide a device which is better adapted to meet the requirements of practice than those used for the same purpose up to the present time.
  • the respective signs to be provided on said supports are given distinctive configurations (in particular are constituted by striae of difierent respective spacings) owing to which scanning thereof permits of generating identifying electric, acoustic or other frequencies.
  • these frequencies are supplied to a checking device arranged to be, for each successive support that is being scanned, in a given working position according to a predetermined law of succession of the signs (numbers) that are to be carried by the supports suCGeSSively examined.
  • the supports carrying the signs to be checked are successively brought into position for examination by a distributing apparatus and the occurring of an erroneous sign has for its eiiect automatically to stOp the distributing apparatus.
  • Fig. 1 shows two digits printed according to my invention
  • Fig. 2 shows two current modulation curves to be utilized according to the invention
  • Fig. 3 is a diagrammatical View of an embodiment of my invention.
  • Fig. 4 is a plan view of the distributing device of Fig. 3.
  • said digits are constituted by fine equidistant parallel striae the spacing between which is different for each of them and a characteristic thereof.
  • Such striae may be obtained by printing or photography. They may be constituted by perforations, or on the contrary by projections (obtained by depositing of matter, decalcomania, or machining). They may be alternately light and dark, or transparent and opaque, or reflecting and dull, etc.
  • I make use of means for scanning the digits for instance perpendicularly to their striae and at constant velocity.
  • This scanning is advantageously performed on a real image of each of said digits obtained through a suitable optical system so as to impress a modulated illumination on a photoelectric cell across the output terminals of which I collect a similarly modulated current, the frequency of which is a characteristic of the digit thus scanned.
  • the checking device is advantageously combined with a mechanical counter, the movement of which is conjugated with that of the distributing apparatus and which is designed in such manner as to include, for every rank (units, tens, hundreds, etc.) of the numbers to be checked, 2. set of resonant circuits correspond.- ing with the respective characteristic frequencies f the digits.
  • Each resonator is coupled with a relay adapted to be excited by the current supplied by said resonator but only if said relay is in working position, which occurs only when the digit registered by the counter element. of the same rank is that for the frequency of which said associated resonator can enter into action.
  • the Whole is so devised that as long as the num: bers carried by the notes that are scanned are correct, the distributing apparatus keeps working, but any mistake in the numbering of the notes causes the apparatus to stop.
  • the distributing apparatus includes two horizontal plates H3 and II, one of which carries the bonds I? to be checked, stacked in their normal numbering order, the numbered side turned upwardly while the other receives the bonds that have just been checked. Passage from one to the other is ensured by means of an arm I4 adapted to receive from a motor 29 a reciprocating vertical movement and a rotational movement about axis l5 and provided at its end with a sucker it placed in communication at the desired time with a source of vacuum.
  • the distribution machine is driven by an electric motor and the various operations thereof are controlled in the required order by a system of cams coacting with suitable levers.
  • I illuminate the top note of the stack l2 by means of an illuminating device diagrammatically shown at I1.
  • I form a magnified vertical real image of the number carried by this bond on an opaque screen 18, by means of a mirror l9 and a suitable optical system 29.
  • the striae which form the digits are horizontal, alternately dark and light.
  • this image is scanned by imparting to screen I8, in which I provide a horizontal slot 2! of a width equal to that of the image of one of the finest striae used for constituting the digits, say that corresponding to the zero, a vertical translatory movement in its own plane, with a constant speed and preferably of an amplitude such that the whole of the image is scanned, this movement being imparted by a crank Isa driven by a suitable source of power.
  • a photoelectric cell 22 disposed behind this movable screen will receive a periodically varying light flux of a frequency characterizing the figure that is being scanned, this frequency depending upon the width of the striae and the velocity of translation of the screen. I therefore collect across the terminals of cell 22 a modulated current of this frequency.
  • each cell 22 is coupled with an amplifier 23 itself connected with a group of ten resonators, from to 9, including resonance circuits designed in such manner as to permit an appreciable current to flow only through the one the frequency of which corresponds to that of the current supplied by cell 22.
  • the highest frequency must not be equal to twice (or a multiple of) the lowest one (see curves of Figs. 2a and 21)).
  • the frequencies and consequently the width of the striae will vary by 7% from one to the other (since log 1.07: log 2) forming the following sequence of numbers: 11.07-1.l5-l.23l.321.41- l.51--l.62l.74l.86, in the chosen example of different signs (digits) to be identified.
  • Each resonator will be coupled with a relay, such as 2a, capable of being excited by the current fiowing through the resonator with which it is associated, and to establish a contact at 2b between two wires 24, 25.
  • a relay such as 2a
  • Relays 2a are arranged for every rank, in such manner that they can be excited by the current flowing through the associated resonator 2 only if said resonator truly corresponds to the number that must be carried by the bond that is being examined.
  • the number that is to be carried by the bond that is being examined is registered by a mechanical counter 26 including as many wheels or analogous elements 26a, 26b, 260 as there are digits (or ranks of digits) in the numbers to be checked.
  • a contact stud is provided to correspond to each figure of the wheels and I connect, for every rank of figures, the ten contact studs respectively to the output of the excitation winding of the ten relays of the same rank, such as 2a, the input of said windings being connected with the associated resonators, in such manner, for instance, that to the contact stud No. 2 of the dial of hundreds there is connected to relay associated with the resonator of the rank of hundreds that is responsive to the frequency characterizing digit 2 (see Fig. 3 where only the control group corresponding to the hundreds has been represented).
  • each dial I To cooperate with the ten contacts studs of each dial I provide a fixed contact 21 connected with the return wire 28 leading to the output of amplifier 23.
  • I connect in series the terminal 24a and 25a corresponding to the respective ranks of figures, three in the example shown, in such manner as to form a circuit when the three contacts, such as 21), are closed, and I cause the closing of this circuit to produce, through a suitable set of relays, the operation of the above described distributing apparatus, and the advance by one unit on counter 26.
  • the operation of the device may be summed up as follows:
  • Every digit of the number of bonds l2 that is being examined gives an image on movable screen [8 the scanning slot of which imparts to a cell 22 a varying illumination of a frequency characteristic of the digit that is being scanned.
  • This cell produces a modulated current of the same frequency; this current is amplified and analyzed by a group of resonators only one of which, that corresponding to the digit that is being examined, say 2, permits an appreciable current to fiow.
  • This current excites a relay, such as 2a, the excitation circuit of which is closed, to a common return 30, only through a contactor associated with the wheel, of the same rank as the digit that is being scanned, on a mechanical counter 26, said contactor being connected with the contact stud corresponding to the digit of this rank that must be carried by the bond.
  • a relay such as 2a
  • the relay is excited and closes a contact (2b) otherwise, if there is no correspondence between the relay the circuit of which is closed and the resonator excited by the modulated current, no contact such as 2b is closed.
  • These contacts are grouped in series to close a distributor control circuit. If a single one of these contacts is open, the distributor does not work.
  • the contact that establishes the working position of the counter could be located ahead of the resonators or between them and the relays. Supplementary means could be provided for identifying as well figure 0 as the absence of any figure (so as, in particular, to identify numbers written both in the form 0047 as in the form 47).
  • the frequencies might be of acoustic nature and capable of cooperating with resonators of the same kind.
  • An apparatus for identifying signs marked on a support and each constituted by a multiplicity of elements juxtaposed with a distinctive spacing between them which comprises, in combination, means for illuminating said support, a screen, optical means for forming on said screen a real image of the signs carried by said support, means for moving said screen in its own plane in the direction in which the images of said elements are juxtaposed to one another, said screen being provided with an aperture of a dimension in this direction corresponding to that of the smallest of said element images, a photoelectric cell behind said screen opposite said aperture, and means for identifying the frequency of the electric current across the terminals of said cell.
  • An apparatus for identifying a sign marked on a support this sign being constituted by the juxtaposition of a multiplicity of marking elements corresponding to a characteristic code pattern
  • this apparatus comprising, in combination, a screen, optical means for forming on said screen a real image of the sign carried by said support, means for moving said screen at least substantially in its own plane in the direction in which the images of said marking elements are juxtaposed to one another, said screen being provided with an aperture the dimension of which in this direction is adapted to ensure a periodical variation of the light flux passing therethrough in the course of this movement of the screen, a
  • photoelectric cell behind said screen opposite said aperture and means for identifying the frequency of the electric current across the ter minals of said cell.
  • An apparatus for checking up the respective numbers marked on a succession of supports, said numbers being formed by digits each constituted by a juxtaposition of marking elements corresponding to a characteristic code pattern this apparatus including in combination, means for advancing each successive support into checking position, a counter having a plurality of movable parts corresponding each to one numerical rank of digits of said numbers, means for actuating said counter parts in synchronism with said support advancing means so that the number registered by said counter increases by one unit upon every operation of said support advancing means, means including an electric circuit, for controlling said support advancing means to permit operation thereof only when said circuit is closed, said circuit including a plurality of control contacts in series, corresponding each to one numerical rank of digits of said numbers, a plurality of luminous means, corresponding each toone numerical rank of digits of said numbers, for scanning the digit of this rank of the number marked on the support in checking position to produce a light flux variation of a frequency corresponding to the characteristic pattern of said digit, a plurality of photo-electric
  • An apparatus for checking up the respec tive numbers marked on a succession of supports, said numbers being formed by digits each constituted by a juxtaposition of marking elements corresponding to a characteristic code pattern this apparatus including, in combination, means for advancing each successive support into checking position, a counter having a plurality of movable parts corresponding each to one nu merical rank of digits of said numbers, means for actuating said counter parts in synchronism with said support advancing means so that the number registered by said counter increases by one unit upon every operation of said support advancing means, means, including an electric circuit, for controlling said support advancing means to permit operation thereof only when said circuit is closed, said circuit including a plurality of control contacts in series, corresponding each to one numerical rank of digits of said numbers, a plurality of luminous means, corresponding each to one numerical rank of digits of said numbers, for scanning the digit of this rank of the number marked on the support in checking position to produce a light flux variation of a frequency corresponding to the characteristic pattern of said digit
  • An apparatus for checking up the respective decimal numbers marked on a succession of supports, said numbers being formed by digits each constituted by a juxtaposition of marking elements corresponding to a characteristic code pattern this apparatus including in combination, means for advancing each successive support into checking position, a counter having a plurality of movable parts corresponding each to one declmal rank of digits of said numbers, means for actuating said counter parts in synchronism with said support advancing means so that the number registered by said counter increases by one unit upon every operation of said support advancing means, means, including an electric circuit, for controlling said support advancing means to permit operation thereof only when said circuit is closed, said circuit including a plurality of control contacts in series, corresponding each to one decimal rank of digits of said numbers, a plurality of luminous means, corresponding each to one numerical rank of digits of said numbers, for scanning the digit of this rank of the number marked on the support in checking position to produce a light flux variation of a frequency corresponding to the characteristic pattern of said digit,

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  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Image Analysis (AREA)
  • Mechanical Optical Scanning Systems (AREA)
US735146A 1946-03-19 1947-03-17 Numbers reading device Expired - Lifetime US2552156A (en)

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FR1000656T 1946-03-19

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646717A (en) * 1950-09-20 1953-07-28 Paul J Selgin Device for the identification of documents or printed matter
US2827822A (en) * 1953-02-02 1958-03-25 Ross L Timms Apparatus for identifying printed documents and the like as genuine
US2896763A (en) * 1954-07-23 1959-07-28 Lehigh Inc Vending machine
US2927216A (en) * 1957-12-19 1960-03-01 Burroughs Corp Photometric character recognition device
US2959638A (en) * 1955-06-03 1960-11-08 Sperry Rand Corp Magnetic printer
US2961649A (en) * 1956-03-09 1960-11-22 Kenneth R Eldredge Automatic reading system
US2964641A (en) * 1957-04-26 1960-12-13 Paul J Selgin Device for identification of engraved documents
US3044043A (en) * 1958-07-21 1962-07-10 Gen Motors Corp Vehicle signalling apparatus for warning of approaching road conditions
US3104324A (en) * 1957-11-22 1963-09-17 Rabinow Engineering Co Inc Electro-optical scanning system for reading machines
US3173291A (en) * 1960-10-26 1965-03-16 Universal Match Corp Method and apparatus for analyzing articles
US3181119A (en) * 1960-11-30 1965-04-27 Control Data Corp Reading machine output controller responsive to reject signals
US3332064A (en) * 1960-07-26 1967-07-18 Gen Electric Double-frequency coded symbol reader
RU2246761C2 (ru) * 2000-05-12 2005-02-20 Российский Федеральный Ядерный Центр - Всероссийский научно-исследовательский институт технической физики им. академика Е.И. Забабахина (РФЯЦ-ВНИИТФ) Оптическое устройство для автоматической идентификации объектов

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3000000A (en) * 1955-05-06 1961-09-12 Gen Electric Automatic reading system
BE628507A (fr) * 1959-10-20
DE1118269B (de) * 1960-06-04 1961-11-30 Christian Kuehlcke Selbsttaetige Waehleinrichtung fuer Fernmelde-, insbesondere Fernsprechanlagen, bei der die unterschiedlichen Flaechengroessen von Ziffern ausgewertet werden

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1870989A (en) * 1929-09-28 1932-08-09 Byron E Eldred Electrical transmission of messages
US1915993A (en) * 1931-04-27 1933-06-27 Gen Electric Statistical machine
US2224646A (en) * 1937-04-22 1940-12-10 William F Friedman Electric control system for tabulating cards, documents, and the like
US2294720A (en) * 1939-07-25 1942-09-01 Ibm Apparatus for verifying statistical data
US2335945A (en) * 1940-04-15 1943-12-07 Ibm Record sequence checking device for tabulating machines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1870989A (en) * 1929-09-28 1932-08-09 Byron E Eldred Electrical transmission of messages
US1915993A (en) * 1931-04-27 1933-06-27 Gen Electric Statistical machine
US2224646A (en) * 1937-04-22 1940-12-10 William F Friedman Electric control system for tabulating cards, documents, and the like
US2294720A (en) * 1939-07-25 1942-09-01 Ibm Apparatus for verifying statistical data
US2335945A (en) * 1940-04-15 1943-12-07 Ibm Record sequence checking device for tabulating machines

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646717A (en) * 1950-09-20 1953-07-28 Paul J Selgin Device for the identification of documents or printed matter
US2827822A (en) * 1953-02-02 1958-03-25 Ross L Timms Apparatus for identifying printed documents and the like as genuine
US2896763A (en) * 1954-07-23 1959-07-28 Lehigh Inc Vending machine
US2959638A (en) * 1955-06-03 1960-11-08 Sperry Rand Corp Magnetic printer
US2961649A (en) * 1956-03-09 1960-11-22 Kenneth R Eldredge Automatic reading system
US2964641A (en) * 1957-04-26 1960-12-13 Paul J Selgin Device for identification of engraved documents
US3104324A (en) * 1957-11-22 1963-09-17 Rabinow Engineering Co Inc Electro-optical scanning system for reading machines
US2927216A (en) * 1957-12-19 1960-03-01 Burroughs Corp Photometric character recognition device
US3044043A (en) * 1958-07-21 1962-07-10 Gen Motors Corp Vehicle signalling apparatus for warning of approaching road conditions
US3332064A (en) * 1960-07-26 1967-07-18 Gen Electric Double-frequency coded symbol reader
US3173291A (en) * 1960-10-26 1965-03-16 Universal Match Corp Method and apparatus for analyzing articles
US3181119A (en) * 1960-11-30 1965-04-27 Control Data Corp Reading machine output controller responsive to reject signals
RU2246761C2 (ru) * 2000-05-12 2005-02-20 Российский Федеральный Ядерный Центр - Всероссийский научно-исследовательский институт технической физики им. академика Е.И. Забабахина (РФЯЦ-ВНИИТФ) Оптическое устройство для автоматической идентификации объектов

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Publication number Publication date
FR1000656A (fr) 1952-02-14
GB639052A (en) 1950-06-21

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