Patent application number | Description | Published |
20090081826 | PROCESS FOR MAKING DOPED ZINC OXIDE - The present invention relates to a process of making a zinc-oxide-based thin film semiconductor, for use in a transistor, comprising thin film deposition onto a substrate comprising providing a plurality of gaseous materials comprising first, second, and third gaseous materials, wherein the first gaseous material is a zinc-containing volatile material and the second gaseous material is reactive therewith such that when one of the first or second gaseous materials are on the surface of the substrate the other of the first or second gaseous materials will react to deposit a layer of material on the substrate, wherein the third gaseous material is inert and wherein a volatile indium-containing compound is introduced into the first reactive gaseous material or a supplemental gaseous material. | 03-26-2009 |
20100149246 | MEDIA IDENTIFICATION SYSTEM WITH MOVING OPTOELECTRONIC DEVICE - A printing system includes a carriage that is movable along a carriage scan direction and an optoelectronic device mounted on the carriage. A media input location, for storing a recording medium, is included along with at least one unobstructed optical path between the optoelectronic device and a plurality of regions of the media input location as the carriage is moved along the carriage scan direction. | 06-17-2010 |
20100149594 | MEDIA IDENTIFICATION SYSTEM WITH SENSOR ARRAY - A printing system includes a media input location for storing a recording medium prior to transport within the printing system for subsequent printing; a light source directed toward an extended region of the media input location; an array of photosensors restricted to only a substantially perpendicular movement relative to a plane of the media input location; and an optical path including a first optical path section from the light source to the extended region of the media input location and a second optical path section from the extended region of the media input location to the array of photosensors. | 06-17-2010 |
20100155679 | SIZE DEPENDENT MARKER CODES - A security marker material comprising emissive particles and the emissive particles can be grouped into at least two groups with different size distributions and the size distributions satisfy the formula: | 06-24-2010 |
20120069075 | OPTICAL SENSOR FOR PRINTER MEDIA MOTION DETECTION - An inkjet printer includes a paper tray for holding print media; a pick-up roller for moving the print media along at least a portion of a pre-print zone of a paper transport path; a light source disposed along the pre-print zone of the paper transport path that directs light toward a non-print side of the print media for illuminating the non-print side of the print media; and an array sensor that receives reflected light from the non-print side of the print media; wherein data from the sensor is used to determine an amount of motion of the print media in the pre-print zone. | 03-22-2012 |
20120138857 | SIZE DEPENDENT MARKER CODES - A security marker material comprising emissive particles selected from at least two groups with different size distributions and the size distributions satisfy the formula: | 06-07-2012 |
20120139985 | PRINTER FOR DETERMINING PAPER TYPE USING TRANSMITTANCE - A printer that determines paper type includes one or more light sources sequentially outputting a short wavelength radiation and a long wavelength radiation onto a paper that transmits the long wavelength radiation and the short wavelength radiation is absorbed by a fluorescent compound in the paper resulting in the emission of long wavelength fluorescent radiation; a first detector that detects a long wavelength fluorescence signal resulting from the short wavelength source and a transmittance signal resulting from the long wavelength source; and a lookup table that determines a paper type from a plurality of paper types based on the fluorescence signal and transmittance signals. | 06-07-2012 |
20120139986 | METHOD FOR DETERMINING PAPER TYPE IN PRINTERS - A method for determining a type of paper and for determining printing parameters based on the type of paper, the method includes the steps of (a) illuminating a paper sequentially with an short wavelength radiation and a long wavelength radiation; detecting a fluorescence signal resulting from the short wavelength radiation and a long wavelength signal resulting from the long wavelength radiation; determining a paper type from a plurality of paper types based on the fluorescence signal and second long wavelength signal; and adjusting the printing parameters based on the determined paper type. | 06-07-2012 |
20120139991 | PRINTER FOR DETERMINING PAPER TYPE USING REFLECTION - A printer that determines paper type includes one or more short and long wavelength radiation sources sequentially outputting a short wavelength radiation and a long wavelength radiation onto a paper that reflects the long wavelength radiation and the short wavelength radiation is absorbed by a fluorescent compound in the paper resulting in the emission of long wavelength fluorescent radiation; a first detector that detects a long wavelength fluorescence signal resulting from the short wavelength source and a reflectance signal resulting from the long wavelength source; and a lookup table that determines a paper type from a plurality of paper types based on the fluorescence signal and reflectance signals. | 06-07-2012 |
20120140007 | INKJET PRINTERS WITH DUAL PAPER SENSORS - A printer that determines paper type includes a first short and long wavelength radiation source located on a first side of paper which first radiation source sequentially outputs a short wavelength radiation and a long wavelength radiation onto the first side of the paper that reflects the long wavelength radiation and the short wavelength radiation is absorbed by the paper and emitted as long wavelength fluorescence radiation; one or more first detectors located on the first side of the paper and each detector detects a long wavelength fluorescence signal resulting from the short wavelength radiation source of the first radiation source and a reflectance signal resulting from the long wavelength radiation source of the first short and long wavelength radiation source; a second short and long wavelength radiation source located on a second side of the paper which second short wavelength and long wavelength radiation source sequentially outputs a short wavelength radiation and a long wavelength radiation onto the second side of the paper that reflects the long wavelength radiation and the short wavelength radiation is absorbed by the paper and emitted as long wavelength fluorescence radiation; one or more second detectors located on the second side of the paper each detector detects a long wavelength fluorescence signal resulting from the short wavelength radiation source of the second radiation source and a reflectance signal resulting from the long wavelength radiation source of the second short and long wavelength radiation source; and a lookup table that determines a paper type from a plurality of paper types based on the fluorescence signal and reflectance signals. | 06-07-2012 |
20120274467 | DEACTIVATION OF A SECURITY FEATURE - A method to deactivate a security measure includes applying a first covert optically active security marker to a product or document; completing a transaction for the product or document; and applying a second optically active security marker to the product or document which indicates completion of the transaction. | 11-01-2012 |
20120274789 | SIGNAL IMAGE EXTRACTION - An apparatus for eliminating background noise from a security marker authenticating system including a first sensor for capturing an image of a background of the security marker; a light source for illuminating the security marker; the first sensor or a second sensor or both captures a plurality images of the optical response of the security marker; a computer which averages the plurality of optical response images; the computer smoothes the background image; and the computer subtracts the smoothed background image from the average of the plurality of optical response images. | 11-01-2012 |
20120274819 | SIGNAL IMAGE EXTRACTION - A method of eliminating background noise from a system for authenticating security markers includes capturing an image of a background of the security marker; illuminating the security marker; capturing a plurality of images of the optical response of the security marker; averaging the plurality of optical response images; smoothing the background image; and subtracting the smoothed background image from the average of the plurality of optical response images. | 11-01-2012 |
20120275639 | IMAGE ALGORITHMS TO REJECT UNDESIRED IMAGE FEATURES - A method for detecting authorized security markers includes capturing an image of a region of interest on a product with a camera; storing image data in a two-dimensional array on a microprocessor; counting a number of pixels at or above a predetermined brightness level in the image data with the microprocessor to determine a first score; eroding the image data; counting the pixels which remain at or above the predetermined brightness level after erosion to determine a second score; calculating a ratio of the second score to the first score; and producing a first authentication signal if the ratio meets a first predetermined criteria. | 11-01-2012 |
20120275640 | METHOD OF AUTHENTICATING SECURITY MARKER - A method for authenticating security markers includes capturing an image of a region of interest on a product with a camera; storing image data in a two-dimensional array on a microprocessor; counting a number of pixels at or above a predetermined brightness level in the image data with the microprocessor to determine a first score; establishing an area within the image; counting a number of pixels within the area to determine a second score; calculating a ratio of the second score to the first score; and if the ratio is above a predetermined threshold the security marker is authenticated. | 11-01-2012 |
20120306955 | INKJET PRINTER HAVING AUTOMATED CALIBRATION - An inkjet printer includes a printer carriage positioned on a first side of a platen and that moves across at least a portion of the platen; a light source positioned on a second side of the platen which second side is different from the first side; a sensor positioned on the printer carriage that detects an amount of light illuminated from the light source; an electronic device that receives data indicating the amount of light transmitted through a media patch with known characteristics; wherein the electronic device compares the amount of transmitted light to stored target values to determine a variation of the sensor response for forming a correction factor; wherein the electronic device uses the correction factor to calibrate at least a first signal of the inkjet printer. | 12-06-2012 |
20120306957 | METHOD FOR DETERMINING VARIANCE OF INKJET SENSOR - A method for determining a variance of a sensor in inkjet printers includes maintaining a printer carriage at a stationary position; illuminating a media patch of known characteristics with a light source that varies an intensity of the light between at least a first and second intensity, in which the second intensity is different from the first intensity; obtaining at least specular reflectance data from light reflected off the print media by measuring a signal from a photo-detector during the illumination; and comparing the specular data to stored values to determine a variation of the sensor response for forming a correction factor; and using the correction factor to calibrate at least a first signal of the inkjet printer. | 12-06-2012 |
20120306958 | METHOD FOR ADJUSTING A SENSOR RESPONSE - A method for determining a variance of a sensor in inkjet printers comprising maintaining a printer carriage at a stationary position; illuminating a media patch of known characteristics with a light source that varies an intensity of the light between at least a first and second intensity, in which the second intensity is different from the first intensity; obtaining an amount of light transmitted through the media patch by measuring a signal from a photo-detector during the illumination; and comparing the amount of received light to stored target values to determine a variation of the sensor response for forming a correction factor; and using the correction factor to calibrate at least a first signal of the inkjet printer. | 12-06-2012 |
20120313747 | METHOD FOR AUTHENTICATING SECURITY MARKERS - A method for authenticating security markers includes preparing a security marker with at least two or more optically active compounds; applying the security marker to an article to be authenticated; illuminating the security marker with radiation; detecting the optical response of the security marker; and wherein the two or more optically active compounds have a complementary response to different wavelengths of the illuminating radiation. | 12-13-2012 |
20120313748 | AUTHENTICATION OF A SECURITY MARKER - A method for authenticating security markers includes illuminating the security marker with a laser, detecting an optical response from the security marker, changing a temperature of the laser to vary the wavelength of radiation produced by the laser; detecting changes in the optical response from the security marker as the wavelength of the radiation changes, comparing the optical response profile from the security marker as it varies with changes in wavelength to a reference profile; and authenticating the security marker if the optical response profile matches the reference profile. | 12-13-2012 |
20120313749 | AUTHENTICATION OF A SECURITY MARKER - An apparatus for authenticating security markers includes a laser or LED for illuminating the security marker; a detector for detecting an optical response from the security marker; an element for changing a temperature of the laser or LED to vary the wavelength of radiation produced by the LED; a detector for detecting changes in the optical response from the security marker as the wavelength of the radiation changes; a microprocessor for comparing the optical response profile from the security marker as it varies with changes in wavelength to a reference profile; and authenticating the security marker if the optical response profile matches the reference profile. | 12-13-2012 |
20130087699 | METHOD FOR VIEWING INVISIBLE INDICIA - A method for detecting and viewing invisible indicia includes illuminating the invisible indicia with radiation of a first wavelength with an illumination source; detecting emitted light from the invisible indicia at a second wavelength with a sensor array; eliminating reflected radiation at the first wavelength; focusing an image of the invisible indicia on the sensor array; displaying the image of the invisible indicia; spacing the sensor array at a fixed distance from the invisible indicia with a spacer; and adjusting sensitivity of the sensor array. | 04-11-2013 |
20130087740 | INFRARED FLUORESCENT COMPOSITION HAVING POLYVINYL ACETAL BINDER - A composition is disclosed that includes a dye that fluoresces in the infrared region of the electromagnetic spectrum and a polyvinyl acetal binder. The weight ratio of the dye relative to the combined weight of the dye and binder is in a range of 0.001 to 0.025. | 04-11-2013 |
20130087741 | INK HAVING POLYVINYL ACETAL BINDER - An ink is disclosed that includes a solvent, a dye that fluoresces in the infrared region of the electromagnetic spectrum and a polyvinyl acetal binder. The weight ratio of the dye relative to the combined weight of the dye and binder is in a range of 0.001 to 0.025. | 04-11-2013 |
20130088603 | COMPACT VIEWER FOR INVISIBLE INDICIA - An apparatus for detecting and viewing an invisible indicia includes an illumination source for illuminating the invisible indicia with radiation of a first wavelength; a sensor array for detecting emitted light from the invisible indicia at a second wavelength; a filter between the sensor and the invisible indicia for eliminating reflected radiation at the first wavelength; a lens for focusing an image of the invisible indicia on the sensor array; a video display for displaying the image of the invisible indicia; a spacer for spacing the sensor array at a fixed distance from the invisible indicia; and a gain control for adjusting sensitivity of the sensor array. | 04-11-2013 |
20130089713 | ARTICLE PRINTED WITH INFRARED DYE - A printed article is disclosed including a substrate and printed data that is not visible to the unaided eye. The printed data includes a dye that fluoresces in the infrared region of the electromagnetic spectrum and a polyvinyl acetal binder. The weight ratio of the dye relative to the combined weight of the dye and binder is in a range of 0.001 to 0.025. | 04-11-2013 |
20140048723 | AUTHENTICATION WITH ACCESS CONTROL AND CALIBRATION - A method of enabling an authenticating device ( | 02-20-2014 |
20140151445 | SYSTEM FOR DETECTING REPRODUCTION OF BARCODES - A system for detecting reproduction of barcodes ( | 06-05-2014 |
20140151454 | DECODER FOR BARCODES WITH ANTI-COPY FEATURE - A method for detecting reproduction of barcodes ( | 06-05-2014 |
20140210998 | METHOD FOR AUTHENTICATING AN OBJECT - A method for authenticating an object that includes providing a label ( | 07-31-2014 |
20140211071 | CELL PHONE AUTHENTICATION DEVICE - A system for authenticating an object includes a label ( | 07-31-2014 |
20140233861 | METHOD FOR LOCATING AN ELECTRONIC APPARATUS - A method for locating an electronic apparatus, the method includes identifying a mobile communication device that is proximate the electronic apparatus; receiving location information embedded in an image file by the mobile communication device and transferred from the mobile communication device; and storing the location information in the electronic apparatus. | 08-21-2014 |
20140312116 | SYSTEM FOR DETECTING REORIGINATION OF BARCODES - A system for detecting reproduction of barcodes ( | 10-23-2014 |
20140312120 | METHOD FOR DETECTING REORGINATION OF BARCODES - A method for detecting reorigination of barcodes ( | 10-23-2014 |
20140339434 | SYSTEM FOR AUTHENTICATING UV ABSORBING SECURITY MARK - A system for authenticating a document includes a document having a substrate comprising an optical brightener; printing a background with a ultraviolet (UV) absorbing material on the substrate comprising a first pattern of lines having a first frequency and a first orientation; printing a security mark with the UV material on the substrate comprising a second pattern of lines having a second frequency and a second orientation; a lenticular lens; placing the lenticular lens over the security mark and background; a UV lamp; illuminating the security mark and background through the lenticular lens with UV light; orienting the lenticular lens to match either the first orientation or the second orientation; and authenticating the document if the security mark matches a predetermined security mark. | 11-20-2014 |
20140339807 | METHOD FOR AUTHENTICATING UV ABSORBING SECURITY MARK - A method of authenticating a document includes providing a document having a substrate comprising an optical brightener; printing a background with a ultraviolet (UV) absorbing material on the substrate comprising a first pattern of lines having a first frequency and a first orientation; printing a security mark with the UV material on the substrate comprising a second pattern of lines having a second frequency or a second orientation or both; placing a lenticular lens over the security mark and background; illuminating the security mark and background through the lenticular lens with UV light; orienting the lenticular lens to match either the first orientation or the second orientation; and authenticating the document if the security mark matches a predetermined security mark. | 11-20-2014 |
20140339808 | DOCUMENT CONTAINING UV ABSORBING SECURITY MARK - A document with a security marker includes a substrate comprising an optical brightener; a background comprising an ultraviolet (UV) absorbing material arranged in a first pattern of lines having a first frequency and a first orientation; and a security mark comprising the UV material arranged in a second pattern of lines having a second frequency and a second orientation. | 11-20-2014 |
20150028227 | SYSTEM FOR AUTHENTICATING AN ITEM - A system of authenticating an item with a security mark includes a substrate ( | 01-29-2015 |
20150028578 | METHOD OF AUTHENTICATING AN ITEM - A method of authenticating an item with a security mark includes providing a substrate ( | 01-29-2015 |