Invisible Patents (Class 235/468)
  • Patent number: 6595427
    Abstract: The present invention relates to encoding and decoding of information using materials that are capable of mildly absorbing radiation over a wide range of infrared wavelengths and substantially non-absorbing in the visible wavelengths. Examples of such encoding of information are bar codes and area markings. Information is encoded in markings on a base medium by depositing or intertexturing on the base medium a material where the surface dimensions, thickness and presence of the material contain the encoded information. The encoding, as disclosed in this invention, utilizes a lower cost, more stable material than a material that is capable of highly absorbing over a range of infrared wavelengths and substantially non-absorbing in the visible wavelengths. However, since the material used in this invention is mildly absorbing in the infrared range, the signal obtained by reflecting or transmitting infrared radiation from the markings will be less distinct.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: July 22, 2003
    Assignee: Polaroid Corporation
    Inventors: Vivek K. Soni, J. Barry Mahoney, William T. Plummer, Richard G. Egan
  • Patent number: 6590996
    Abstract: A color mapping process enhances a watermark by computing a change in colors that is less visible for a given watermark strength. The mapping process provides smooth transitions from one color region to another, and may be implemented efficiently with a 3D look up table. A user interface scheme enables the user to control encoding of the watermark in desired color regions.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: July 8, 2003
    Assignee: Digimarc Corporation
    Inventors: Alastair M. Reed, Geoffrey B. Rhoads
  • Patent number: 6581839
    Abstract: The present invention relates to a process for producing an opaque, transparent or translucent transaction card having multiple features, such as a holographic foil, integrated circuit chip, silver magnetic stripe with text on the magnetic stripe, opacity gradient, an invisible optically recognizable compound, a translucent signature field such that the signature on back of the card is visible from the front of the card and an active thru date on the front of the card. The invisible optically recognizable compound is an infrared ink and/or film, which can be detected by a sensor found in an ATM or card assembly line.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: June 24, 2003
    Assignee: American Express Travel Related Services Company, Inc.
    Inventors: Ellen Lasch, Lisa Webb, Judy Vigiletti, William J. Faenza, Jr.
  • Patent number: 6572025
    Abstract: An information code product (101) comprising a body (105) having a code-including image (104) formed thereon which includes at least one unit of information codes (103) with one or more specific color, wherein the unit of information codes is adapted to be obtained by extracting an image with the specific color from the code-including image. A user is authenticated by an authentication system (301) which comprises an authentication terminal (302) for reading data included in the product (101) and an authentication server (303) which is interconnected to the authentication terminal through a network (304).
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: June 3, 2003
    Assignee: Japan Gain The Summit Co., Ltd.
    Inventors: Hiroshi Nishikado, Satoshi Shimazaki, Tatahiro Miwa
  • Patent number: 6572021
    Abstract: The invention relates to a card-shaped data carrier having a printed layer (6) on a carrier layer (2) and a transparent film (1) with a thermoreversible color layer (4) on said printed layer (6).
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: June 3, 2003
    Assignee: Skidata AG
    Inventor: Johannes Lippert
  • Publication number: 20030090719
    Abstract: A method for providing a mailing system includes receiving, through a computer system, a mail item from a sender, and printing the mail item in a document including coded data thereon, the coded data including an indication of the identity of the mail item and at least one reference point on the document. The method also includes receiving, in the computer system, indicating data from a sensing device, the indicating data including information regarding the identity of the mail item and at least one action of the sensing device in relation to the document generated by the sensing device using at least some of the coded data; and generating a second mail item using said indicating data from the sensing device.
    Type: Application
    Filed: November 12, 2002
    Publication date: May 15, 2003
    Inventors: Paul Lapstun, Kia Silverbrook
  • Publication number: 20030090718
    Abstract: A method for providing a mailing system includes receiving, through a computer system, a mail item from a sender, and printing the mail item in a document including coded data thereon, the coded data including an indication of the identity of the mail item and at least one reference point on the document. The method also includes receiving, in the computer system, indicating data from a sensing device, the indicating data including information regarding the identity of the mail item and at least one action of the sensing device in relation to the document generated by the sensing device using at least some of the coded data; and generating a second mail item using said indicating data from the sensing device.
    Type: Application
    Filed: November 12, 2002
    Publication date: May 15, 2003
    Inventors: Paul Lapstun, Kia Silverbrook
  • Publication number: 20030089782
    Abstract: A method of producing textile based items whose authenticity is capable of being ascertained includes the application to the item of one or more components which cause an alteration to the response of the item to incident electromagnetic radiation. The one or more components may be arranged in a coded sequence within the item. The invention also provides the item having the one or more components incorporated therein, a method of establishing the authenticity of the item and apparatus associated therewith.
    Type: Application
    Filed: October 22, 2002
    Publication date: May 15, 2003
    Inventor: Christopher Reed
  • Publication number: 20030090720
    Abstract: A method for providing a mailing system includes receiving, through a computer system, a mail item from a sender, and printing the mail item in a document including coded data thereon, the coded data including an indication of the identity of the mail item and at least one reference point on the document. The method also includes receiving, in the computer system, indicating data from a sensing device, the indicating data including information regarding the identity of the mail item and at least one action of the sensing device in relation to the document generated by the sensing device using at least some of the coded data; and generating a second mail item using said indicating data from the sensing device.
    Type: Application
    Filed: November 12, 2002
    Publication date: May 15, 2003
    Inventors: Paul Lapstun, Kia Silverbrook
  • Patent number: 6556690
    Abstract: An object bearing a two-dimensional visible image on an image field of a non-planar and curved object surface in at least one dimension also bears an encodement of encoded information recorded in a symbology of a material that is visible or invisible to the eye and over a substantial portion of the image field. The encodement includes curved encodement portions due to the curvature of the non-planar image field. The symbology of the encodement is adapted to be imaged as a planar symbology image by a planar imager that is disposed in use generally normal to and at a predetermined distance from a central point of the two-dimensional visible image. The recorded symbology is adjusted from point to point in the image field during recording of the encodement by an encodement recording system to compensate for distortion of the symbology introduced by imaging the curved symbology portions as the planar symbology image.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: April 29, 2003
    Assignee: Eastman Kodak Company
    Inventor: David J. Nelson
  • Patent number: 6542622
    Abstract: A test target having N invisible test data encodements (660-66N, 740-74N, 74′0-74′N) each comprising test data printed over the surface of test print media media in a defined spatial order printed in invisible ink by a printer under test. The invisible ink print quality of the printer is determined by the ability of an invisible encodement reader to decode certain of the N invisible encodements (660-66N, 740-74N, 74′0-74′N). In a first preferred embodiment, a test print media is prepared by pre-printing or coating a media surface with an invisible ink that is sensitive to the same wavelength of light as the printer ink in a plurality N of areas on the media surface providing step background densities (580-58N) ranging from no applied ink to maximum printer ink density in a test tablet manner In the test mode, N test data files are printed as N invisible encodements (660-66N) in the corresponding N areas (580-58N) thereby creating a test target that is to be read by the reader.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: April 1, 2003
    Assignee: Eastman Kodak Company
    Inventors: David J. Nelson, Kevin W. Williams, Robert C. Bryant
  • Patent number: 6536672
    Abstract: A product authentication system and method employs a unique mark that is simple and cost-effective to apply, but provides several layers of protection, including anti-counterfeit and anti-diversion, against counterfeiters. The unique mark contains a product control code that is printed in invisible ink comprising a UV ink and an IR ink. The first layer of protection is invisibility. The second layer of protection is the code itself. The third layer of protection is the presence of the IR ink in the invisible code. The fourth layer of protection is the IR emitting characteristics of the invisible code.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: March 25, 2003
    Assignee: DNA Technologies, Inc.
    Inventor: Chris Outwater
  • Patent number: 6471126
    Abstract: An invisible symbol reading apparatus includes a heating unit for heating an invisible symbol formed on a sample and containing a material which emits infrared light when heated, a detecting unit for detecting infrared light emitted from the invisible symbol, and an arithmetic operation unit for binarizing a detection signal from the detecting unit. The arithmetic operation unit calculates a differential coefficient of the detection signal, that corresponds to a position on the sample. On the basis of upper and lower threshold values set for the differential coefficient, the arithmetic operation unit determines a maximum value of the differential coefficient in a region exceeding the upper threshold value and a minimum value of the differential coefficient in a region smaller than the lower threshold value. The arithmetic operation unit binarizes the detection signal by using the maximum or minimum value as a leading or trailing edge of a binary function.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: October 29, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Taeko I. Urano, Kenji Sano, Hideo Nagai, Tomokazu Domon, Hironori Fukuda
  • Publication number: 20020130182
    Abstract: A method of forming symbols, characters, and other images from a light polarizing material including machine readable indicia enabling automated identification of articles is disclosed. A light polarizing material is applied over a reflective layer in a machine readable pattern. The material may be an image imprinted on a label with a light polarizing material on a substrate such as a transparent oriented film. In one aspect, a mail processing system includes a computer including a database of destination codes corresponding to a plurality of mail pieces for delivery to at least some of the destination codes. A media applicator utilizes the database for generating and applying a light polarizing material to a label or article to form a machine readable indicia, including the destination code for each of the plurality of mail pieces. A mail sorting system utilizing the label includes a camera with polarized lenses for filtering light reflected from indicia formed from a light polarizing material on the label.
    Type: Application
    Filed: December 28, 2001
    Publication date: September 19, 2002
    Inventor: George R. Mondie
  • Patent number: 6409087
    Abstract: A scanning and detection device has a radiation source emitting radiation onto an object to be scanned. The device also has a detection screen with fluorescent elements converting incident radiation of the radiation source into different fluorescent radiation. The fluorescent elements are inorganic elements, organic elements, or inorganic and organic elements.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: June 25, 2002
    Assignee: Europa Trading, s.r.l.
    Inventors: Pier Giovanni Menci, Romano Menci, Pier Luigi Caprioli, Mauro Di Tomassi
  • Publication number: 20020056756
    Abstract: A bar code 10 incorporating thermochromic materials in selected modules 20 such that its code changes with temperature. Below a specified temperature, the bar code 10 displays the code as in FIG. 3. Above this temperature, the bar code 10 shows a new code as in FIG. 2. The bar code 10 is printed with conventional printing equipment (not shown) onto conventional printing media, and is scanned with conventional bar code scanning equipment (not shown).
    Type: Application
    Filed: December 3, 1999
    Publication date: May 16, 2002
    Inventors: JON CAMERON, TOBIN GAEDKE
  • Patent number: 6384409
    Abstract: An optical system for the tracking or verification of items, having an energy source (e.g., an illumination source), selectively producing a specific wavelength (or small set of wavelengths, such as a spectrum) of energy matched with a material sensitive to that illumination. When the material is subjected to the energy source, it emits a wavelength of energy which is then sensed by a detector.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: May 7, 2002
    Assignee: MQS, Inc.
    Inventors: Miles Augustus Libbey, III, Randall Eugene McCoy
  • Patent number: 6375075
    Abstract: A symbol reader employs an optical element having first and second optical axes positioned to image a same portion of a color coded symbol onto two different portions of an image sensor. The reader includes one or more filters to remove different color portions of the light reflected from the symbol to create color separations at the image sensor. Thus, the image sensor detects different intensities of light, corresponding to different color states. A comparator, such as a microprocessor, programmed general purposed computer, or digital logic circuit, can determine the position and color of the various symbol elements based on image data produced by the image sensors, and decode the color coded symbol.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: April 23, 2002
    Assignee: Intermec IP Corp.
    Inventors: H. Sprague Ackley, Richard Steward Penn
  • Patent number: 6354501
    Abstract: A composite authentication mark includes a bar code portion that is visible when illuminated with visible light and an invisible code portion that is not visible when illuminated with visible light, wherein the bar code portion includes a plurality of bars and spaces and the invisible code portion is arranged in at least one of the spaces of the bar code portion without overlapping any of the bars of the bar code portion. Because the invisible code portion does not overlap with any of the bars of the bar code portion, a single-step printing and reading processes may be used. More information can be coded by the composite authentication mark by using the relative location of the invisible code portion within the spaces of the bar code portion.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: March 12, 2002
    Assignee: CrossOff Incorporated
    Inventors: Chris Outwater, Mark Helmick
  • Patent number: 6343743
    Abstract: The invention relates to a method for testing the authenticity of a data carrier with an integrated circuit and is characterized in that a material is provided in an area of the integrated circuit which is excited to luminesce for example by an electromagnetic radiation or by an electric field, the electromagnetic radiation emitted by the material being measured and evaluated for determining the authenticity of the data carrier.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: February 5, 2002
    Assignee: Giesecke & Devrient GmbH
    Inventor: Michael Lamla
  • Patent number: 6286761
    Abstract: An identification document for a subject includes a substrate and a visual image formed on the substrate or a recording layer over the substrate, such visual image including an identifiable first area. The identification document further includes invisible but retrievable embedded information formed in the identifiable first area but not formed in a second area of the visual image, such embedded information related to the subject or the use of the identification document.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: September 11, 2001
    Assignee: Eastman Kodak Company
    Inventor: Xin Wen
  • Patent number: 6270213
    Abstract: A ink that is printed under a printed information-based indicia so that the information-based indicia will not require a Facing Identification Mark (FIM). The ink provides the foregoing result by being both fluorescent and phosphorescent. Current desk top printers and color photocopiers are not capable of duplicating fluorescence and phosphorescence at the same time.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: August 7, 2001
    Assignee: Pitney Bowes Inc.
    Inventors: Ronald P. Sansone, Richard A. Bernard, Judith D Auslander
  • Patent number: 6264107
    Abstract: An object or an article for a detector or reader has a latent illuminance marker. A light source illuminates the marker and the marker emits illuminance as phosphorescence. A photosensor detects the emitted illuminance, and the decay time is determined. The decay time is checked to provide identification and/or authentication of different types or generations of objects or articles.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: July 24, 2001
    Assignee: Iomega Corporation
    Inventors: Fred C. Thomas, III, Glenn B. Dixon
  • Patent number: 6202929
    Abstract: Barcode patterns or other meaningful patterns are printed with a differentially conductive ink. A sensor incorporating a plurality of capacitive couplings distinguishes features of the patterns by comparative measurements that are largely independent of variations between the sensor and the patterns affecting all of the couplings. The patterns can be distinguished despite being hidden from view, such as inside sealed envelopes.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: March 20, 2001
    Assignees: Micro-Epsilon Mess Technik, Translucent Technologies, LLC
    Inventors: Gerrit L. Verschuur, Franz Hrubes
  • Patent number: 6177683
    Abstract: A portable viewer for viewing bar codes and other markings printed at least in part with invisible inks includes a light source for illuminating and exciting the ink of the bar code, a camera for detecting light emitted by the excited bar code and for outputting image data, a display for creating a visible image of the bar code from the image data output from the camera, and an optical system for projecting the visible image onto a viewing screen. The display may be a miniature, transmissive active matrix liquid crystal display with high resolution that produces a sharp, bright image. A backlight and lens project the image produced by the display to generate an enlarged virtual image that can be easily viewed by a user. The portable viewer is compact in size and can be accommodated in a small package and requires only a small amount of power.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: January 23, 2001
    Assignee: C2it, Inc.
    Inventors: Jason R. Kolesar, Gerard A. DeRome, James M. Guberski, Edward J. Kapturowski
  • Patent number: 6168081
    Abstract: An invisible symbol reading apparatus includes a heating unit for heating an invisible symbol formed on a sample and containing a material which emits infrared light when heated, a detecting unit for detecting infrared light emitted from the invisible symbol, and an arithmetic operation unit for binarizing a detection signal from the detecting unit. The arithmetic operation unit calculates a differential coefficient of the detection signal, that corresponds to a position on the sample. On the basis of upper and lower threshold values set for the differential coefficient, the arithmetic operation unit determines a maximum value of the differential coefficient in a region exceeding the upper threshold value and a minimum value of the differential coefficient in a region smaller than the lower threshold value. The arithmetic operation unit binarizes the detection signal by using the maximum or minimum value as a leading or trailing edge of a binary function.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: January 2, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Taeko I. Urano, Kenji Sano, Hideo Nagai, Tomokazu Domon, Hironori Fukuda
  • Patent number: 6142380
    Abstract: An information based indicia (IBI) that does not require a FIM and is able to be read by Advanced Facer Canceller Systems. The foregoing is accomplished by printing on the mail piece an upper layer IBI indicia over a lower layer invisible ink. The lower layer ink is a dual luminescent ink that is invisible to the naked eye and the upper layer IBI indicia is printed with an ink that is visible to the naked eye. The lower layer may also be produced by two inks, one of which is fluorescent and the other of which is phosphorescent. The fluorescent ink will be printed in one area of the lower layer and the phosphorescent inks will be printed in another area of the lower layer.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: November 7, 2000
    Assignee: Pitney Bowes Inc.
    Inventors: Ronald P. Sansone, Richard A. Bernard, Judith D. Auslander
  • Patent number: 6138913
    Abstract: An invisible indicia or encoded information is imprinted on a substrate using a compound which produces a fluorescence at a wavelength greater than about 650 nm when exposed to near infrared radiation. The information covered by a layer of material that reflects or absorbs a substantial amount of the visible and UV radiation illuminating its surface.
    Type: Grant
    Filed: January 5, 1998
    Date of Patent: October 31, 2000
    Assignee: Isotag Technology, Inc.
    Inventors: Michael John Cyr, James John Krutak, Sr., Horst Clauberg, Tony Wayne Helton
  • Patent number: 6119939
    Abstract: The invention is optical assembly for use in a barcode reader that includes a frame having a rear housing and a pair of arms outwardly extended from the housing. An optical card containing an imaging lens is slidably received in a rear guideway situated between the arms. An aperture card is slidably received in a front guideway situated between the arms in front of the lens. Lamp support brackets are also mounted to either side of the arms. Each bracket contains a pair of LEDs that are aligned in coplanar relation with the imaging lens. A cylindrical lens is mounted in front of the lamp support brackets within the arms of the frame to magnify and focus the illumination from the LED upon a target in barcode space. A horizontally extended field stop aperture is positioned in front of each LED.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: September 19, 2000
    Assignee: Welch Allyn, Inc.
    Inventors: Eric D. Schwartz, Edward B. Hubben, Brian L. Jovanovski, Vivian L. Hunter, Melvin D. McCall
  • Patent number: 6119943
    Abstract: A substrate capable of receiving and retaining imaging is coded so as to maximize the amount of the scannable information that can be packed into an area, and/or to provide an effective security feature. A first machine readable identification code (e.g. bar code) is imaged on a predetermined area of the substrate, and is opaque to a first predetermined wavelength range of electromagnetic energy (e.g. the infra-red region of light). An overlay is applied over and at least partially covering the first code. The overlay is transparent to the first wavelength range, and opaque to a second wavelength range (e.g. the visible spectrum of light). The overlay may be a security block which substantially completely covers the first code, or may be a second bar code (or additional codes) which is transparent to the second range.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: September 19, 2000
    Assignee: Moore Business Forms, Inc.
    Inventor: Orrin D. Christy
  • Patent number: 6119071
    Abstract: Apparatus and method for reading a luminescent bar code on a background surface whose reflectance may vary over the coded area, including a light source for providing light to scan, and to excite luminescence in the bar code or to reflect from the background surface of the coded area; a first detector responsive to reflected non-luminescent light for providing a first signal; a second detector responsive to luminescent light for providing a second signal; and memory having stored calibration indicia of reflectance and luminescence, the memory responsive to the first and second signals for providing an output signal substantially independent of background reflectance, and substantially free of bar code edge distortion.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: September 12, 2000
    Assignee: Battelle Memorial Institute
    Inventors: Ronald L. Gorenflo, Thomas M. Dolash, John J. Garvey
  • Patent number: 6112982
    Abstract: Equipment (100) for coating photographic media (14), such as photographic film and paper, has an apparatus (10) for printing bar code indicia (12) on a moving photographic media and a printer means for printing human readable indicia (16) on the media. The printer (20a, 20b) moves into print position along a lateral edge (28) of the media (14) in response to input signals received from a controller (22) having computer readable medium for directing the printing and movements of the printer (20a, 20b).
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: September 5, 2000
    Assignee: Eastman Kodak Company
    Inventors: Gary W. Ahlquist, Thomas J. Clifford, Jr., Andrew Zwickl, Jr., Bruce G. Rockey, Donald D. Eggleston, Walter W. Jacobe
  • Patent number: 6039244
    Abstract: The invention relates to a method of building up a data bank containing customer data and/or for the organization of a rebate or coupon system. Furthermore, the invention relates to the use of such a method and also to computerized tills usable in the context of the method, to printed till receipts, printed invoices, printed entry cards, product packages, product labels and product tags. Finally, the invention also relates to an apparatus for the production of the said product packages, product labels and product tags.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: March 21, 2000
    Inventor: Martin Finsterwald
  • Patent number: 6039257
    Abstract: A system that scans and reads IBI in accordance with the United State Postal Service Specification. This invention also improves both the readability and security of the Information-Based Indicia. The apparatus of this invention utilizes a postage meter that prints an Information-Based Indicia, scans and checks the Information-Based Indicia and prints an invisible, secure message, i.e., bar code over the Information-Based Indicia. The apparatus may also audit the franking process by immediately scanning and verifying the bar code that was printed over the Information Based-Indicia.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: March 21, 2000
    Assignee: Pitney Bowes Inc.
    Inventors: William Berson, Judith D. Auslander
  • Patent number: 5971276
    Abstract: A method of reading a pattern including steps of heating or irradiating with infrared light a substrate on which a transparent pattern is formed, the pattern containing a material capable of absorbing infrared light of specific wavelength such as polyacrylonitrile, and detecting infrared light which is radiated or reflected from the pattern.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: October 26, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenji Sano, Taeko I. Urano, Hideyuki Nishizawa, Mitsunaga Saito, Kenji Todori
  • Patent number: 5959296
    Abstract: An apparatus for detecting an invisible, near infrared fluorescing mark disposed on a background comprises: includes an excitation source for exciting the mark, having sufficient power to excite the mark and provide a fluorescent signal the mark from a; a signal detector for detecting the fluorescent signal from the mark; a and power modulator means for varying the power if the excitation source between zero and the maximum power level to produce a decodable fluorescent signal from the mark disposed on the background. A process for decoding an invisible mark having a near infrared fluorescing material includes the steps of: providing at least one invisible, near infrared fluorescing mark disposed on at least one portion of a background; exciting the mark with a laser having a maximum power level sufficient to provide a fluorescent signal from the mark; detecting the fluorescent signal and concurrently varying the power of the laser between zero and its maximum power, to obtain a decodable fluorescent signal.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: September 28, 1999
    Assignee: Eastman Chemical Company
    Inventors: Michael John Cyr, James John Krutak, Sr., Horst Clauberg, Randy Barnett Meade, James Edward Moore, Gabor Patonay
  • Patent number: 5932870
    Abstract: This invention relates to a document authentication system that may be read by a human and/or machine. A one or two-dimensional bar code or other printed code is printed over a magnetic strip, which may contain information linked to the encoded bar code data and human readable text that appears on the document. The magnetic strip that contains a printed bar code is affixed to a document that contains human readable text and a protective transparent laminates is placed over the bar code for abrasion resistance. The bar code or other code may be printed with an invisible ink for additional security.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: August 3, 1999
    Assignee: Pitney Bowes Inc.
    Inventor: William Berson
  • Patent number: 5912451
    Abstract: An optical reader for reading indicia such as bar codes comprises a first and second light source for generating first and second laser beams. The respective laser sources generate light at different wavelengths and a dichroic filter is provided to allow either source to be used without parallax effects. The laser scanner beam can be used to aim the reader when carrying out field of view reading. The optical reader is further provided with a band-pass filter shaped to match the wave-front of light generated at a given location incident on the filter to reduce the band-pass bandwidth and hence the ambient noise. The shaped band-pass filter can be incorporated in the optical reader dichroic filter arrangement.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: June 15, 1999
    Assignee: Symbol Technologies, Inc.
    Inventors: Vladimir Gurevich, Mark Krichever, Boris Metlitsky, Paul Dvorkis
  • Patent number: 5861618
    Abstract: A bar code and/or indicia scanning method that is able to determine what light was emitted from an upper layer invisible bar code and/or upper layer invisible indicia and what light was reflected back to the detector from a visible lower layer bar code and/or visible lower layer indicia. The detecting is "blind" to the spectra of the excitation source. Rather than differentiate between the exciter and emitter in the spectral domain, this invention differentiates between the exciter and the emitter in the time domain. The latency and persistence of the phosphorescent pigments of the invisible ink are used so that the detected signal is only the signal emitted by the upper layer invisible ink after the light source is turned off. Illumination and detection are synchronized to reduce the effects of reflection to zero so that the detector need not be chosen to be blind to the exciter. The foregoing is particularly suited to LED and laser illumination where the light source may be easily turned on and off.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: January 19, 1999
    Assignee: Pitney Bowes, Inc.
    Inventor: William Berson
  • Patent number: 5801067
    Abstract: A method and system for identifying and providing absolute identification on any visual medium or devices, to permit accurate recall of unique characteristics of the device being identifying. The recorded production information become the characteristics of the device, enabling fast and accurate identification and retrieval at a later date. The recording apparatus basically comprises a keyboard for inputting identification information for each device of a production lot, an electronic encoder for encoding the identification information into an index code, a laser device for etching or engraving the index code to a surface of each device, an inking device for filling the etched surface of each device with ultraviolet or infrared ink, and a spraying device for spraying a protective coat over the etched surface of each device. The index code can be retrieved at a later time for identifying each device from the production lot and the index code will remain invisible and not be seen by the naked eye.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: September 1, 1998
    Assignee: Ronald Shaw
    Inventors: Ronald Shaw, John Brooks, Frank Flemming
  • Patent number: 5773808
    Abstract: An apparatus and method for reading invisible messages is disclosed. Two light sources impinge upon a surface upon which a luminescent message is located. The first light excites the luminescent message, which luminesces and emits a luminescent light. The luminescent light is received by an image sensor and is converted into a first electric signal. The second light has wavelengths substantially similar to the luminescent light, which reflects from the surface and is received by an image sensor and converted to a second electric signal. The first and second signals are processed to compensate for local variations in the reflectivity of the surface.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: June 30, 1998
    Inventor: Vadim Laser
  • Patent number: 5760384
    Abstract: An information storage medium has a base portion and a code storage portion. The code storage portion is disposed on the base portion and contains an infrared absorber which absorbs substantially only infrared rays within a narrow wavelength band. If a real information storage medium is produced like that, subject mediums are judged real or not by a method includes the steps of emitting rays to the subject medium, receiving rays reflected from the subject medium, detecting a first reflectance at the peak absorption wavelength and a second reflectance at a comparison wavelength near the peak wavelength, and judging if the subject medium is real or not. The rays at the comparison wavelength are not very much absorbed by the absorber.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: June 2, 1998
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Noriyuki Itoh, Masahiko Wakana, Manabu Suzuki, Haruki Ohta
  • Patent number: 5672859
    Abstract: A reproduction apparatus (14) for reproducing documents (12) which comprise a base material. The apparatus comprises a platen (10) for forming a scanning area and for positioning the documents (12) on its one side, scanning means (18) for scanning the scanning area, and means for obtaining a relative movement between the scanning means and the documents in order to allow for the scanning. The scanning means (18) comprise a microwave system which is constituted by microwave transceivers (26) arranged in an array such that they can detect the presence of particles (13) which have electromagnetic properties which are substantially different from the electromagnetic properties of the base material and which are incorporated in at least a part of the documents (12), irrespective of the position of the documents (12) on the scanning area.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: September 30, 1997
    Assignee: N.V. Bekaert S.A.
    Inventors: Johan Samyn, Walter Van Loock
  • Patent number: 5668363
    Abstract: A high-reliability optical reading apparatus for reading a latent image mark capable of accurately reading the code information of a latent image mark. The optical reading apparatus comprises a light-projecting light member for projecting on a surface of the latent image mark, the light having a wavelength to excite a fluorescent substance contained in the latent image mark having desired information; and a light-receiving member for receiving fluorescence emitted from the surface of the latent image mark. A range in which the latent image mark can be read is formed by setting a point at which the optical axis of the light-projecting member and that of the light-receiving member intersect with each other as a reference. An intersection angle between the two optical axes is preferably in the range of from 10.degree. to 40.degree..
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: September 16, 1997
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Masato Nishida, Tomoaki Ishituka, Toshio Oshima
  • Patent number: 5629512
    Abstract: An invisible information recording medium includes an underlying layer, an invisible information recording layer provided above the underlying layer, being invisible under visible light, and fluorescing upon being applied with light having a particular wavelength excepting that of the visible light, thus becoming visible, and an optical modulation layer provided between the underlying layer and the recording layer.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: May 13, 1997
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Yasunobu Haga
  • Patent number: 5600115
    Abstract: A system which includes an information transmitting element including flexible length of cable supporting an array of energy emitting elements of such sizes, shapes and spacings as to represent bar code markings, a carrier for the information transmitting element which is adapted to be mounted on a person or object, where its movement from one place to another requires control and where its admission to such places might be selectively denied, and a receiver element for detecting and determining the encoded information being transmitted.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: February 4, 1997
    Inventor: Alfiero Balzano
  • Patent number: 5548106
    Abstract: Accessory apparatus for authenticating articles is used in conjunction with existing readers or scanners of articles bearing stored data, such as credit cards or identification cards. The accessory apparatus is disposed before, after, on, under, inside, or adjacent to existing reader apparatus, to have a view of the article whose data is to be read. Information in addition to the stored data is coded on the article in non-visible indicia and is detected by the accessory authenticating apparatus. This coded additional information may be related to identification data stored in the article by the article's normal storage mechanism, such as a magnetic stripe or an embedded memory IC chip. The additional information may be coded in various combinations of predetermined characteristics of light emitted by the article to be authenticated when the article is irradiated with non-visible light from the accessory apparatus.
    Type: Grant
    Filed: August 30, 1994
    Date of Patent: August 20, 1996
    Assignee: Angstrom Technologies, Inc.
    Inventors: Louis H. Liang, Daniel A. Marinello, William J. Ryan
  • Patent number: 5545883
    Abstract: A magnetic card includes a magnetic layer, a bar code, a protection layer, and a pseudo bar code. The magnetic layer is formed on a substrate, records magnetic information, and reflects light. The bar code is formed on a predetermined area of the magnetic layer by a light absorption material and detected by a lack of reflected light from the magnetic layer. The protection layer is formed on the predetermined area of the magnetic layer and protects the bar code. The pseudo bar code is formed on the magnetic layer and intermingled with the bar code. An address information code is provided on the card for determining the bar code form the pseudo bar code. A card reader apparatus using this magnetic card is also disclosed.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: August 13, 1996
    Assignee: Tamura Electric Works, Ltd.
    Inventors: Hiroshi Sasou, Takumi Kawashima
  • Patent number: 5525798
    Abstract: Inks have been discovered that are selectively excitable by different wavelengths of incident radiation. This allows a lower layer bar code to be written on an object with an invisible ink and an upper layer bar code to be written over the lower layer bar code with an ink that is invisible to the naked eye. The apparatus of this invention is a detector that is able to read the upper and lower layer bar codes.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: June 11, 1996
    Assignee: Pitney Bowes Inc.
    Inventors: William Berson, Judith D. Auslander
  • Patent number: RE37491
    Abstract: An information storage medium has a base portion and a code storage portion. The code storage portion is disposed on the base portion and contains an infrared absorber which absorbs substantially only infrared rays within a narrow wavelength band. If a real information storage medium is produced like that, subject mediums are judged real or not by a method includes the steps of emitting rays to the subject medium, receiving rays reflected from the subject medium, detecting a first reflectance at the peak absorption wavelength and a second reflectance at a comparison wavelength near the peak wavelength, and judging if the subject medium is real or not. The rays at the comparison wavelength are not very much absorbed by the absorber.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: January 1, 2002
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Noriyuki Itoh, Masahiko Wakana, Manabu Suzuki, Haruki Ohta