With Electronic Scanning Patents (Class 250/208.3)
  • Patent number: 10416639
    Abstract: The system generally includes a crosspoint switch in the local data collection system having multiple inputs and multiple outputs including a first input connected to the first sensor and a second input connected to the second sensor. The multiple outputs include a first and second output configured to be switchable between a condition in which the first output is configured to switch between delivery of the first sensor signal and the second sensor signal and a condition in which there is simultaneous delivery of the first sensor signal from the first output and the second sensor signal from the second output. Each of multiple inputs is configured to be individually assigned to any of the multiple outputs. Unassigned outputs are configured to be switched off producing a high-impedance state.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: September 17, 2019
    Assignee: Strong Force IOT Portfolio 2016, LLC
    Inventors: Charles Howard Cella, Gerald William Duffy, Jr., Jeffrey P. McGuckin
  • Patent number: 10411812
    Abstract: An optical interconnect computing module having free space optical interconnects that form communication links with other systems with like optical interconnects and with computer blades contained within the computing module. The computing module adapts to changes in the position and orientation and other factors of the optical interconnects. The optical interconnects utilize solid-state electronic and optoelectronic components and optical components. The ability to adapt is controlled by an algorithm implemented in software, firmware and logic circuits. Computing modules within an equipment rack and between equipment racks as well as blades contained within a computing module may experience changes in position and orientation due to installation misalignment, servicing of equipment, vibrations, floor sagging, thermal expansion and contraction, earthquakes, line-of-sight obstructions, manufacturing imperfections and other sources.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: September 10, 2019
    Inventor: Forrest I Rose
  • Patent number: 10389906
    Abstract: An image scanning method applied in an image scanning device capable of scanning a card. Record background values at the time of a card being without being in a scanning channel, and the background values recorded at the time of the card being without being in the scanning channel are regarded as preset values. Before the card is scanned, check whether the background values in the scanning channel conform to the preset values. Drive the card to move a distance Y. Check whether the background values in the scanning channel conform to the preset values. Preset a preset movement distance, check whether a movement distance of the card or a distance of accumulated movements of the card exceeds the preset movement distance. Display that the card is stuck. Stop checking and proceeding with an image calibration. Start scanning the card. Complete scanning the card and withdraw the card.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: August 20, 2019
    Assignee: Foxlink Image Technology Co., Ltd.
    Inventors: Yao Shuo Chang, Yi Hsuan Lin, Jui Yi Yu, Te Yu Chu
  • Patent number: 10365625
    Abstract: The system generally includes a crosspoint switch in the local data collection system having multiple inputs and multiple outputs including a first input connected to the first sensor and a second input connected to the second sensor. The multiple outputs include a first and second output configured to be switchable between a condition in which the first output is configured to switch between delivery of the first sensor signal and the second sensor signal and a condition in which there is simultaneous delivery of the first sensor signal from the first output and the second sensor signal from the second output. Each of multiple inputs is configured to be individually assigned to any of the multiple outputs. Unassigned outputs are configured to be switched off producing a high-impedance state.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: July 30, 2019
    Assignee: Strong Force IOT Portfolio 2016, LLC
    Inventors: Charles Howard Cella, Gerald William Duffy, Jr., Jeffrey P. McGuckin
  • Patent number: 10313548
    Abstract: An image scanning method applied in an image scanning device capable of scanning a card. Record background values at the time of a card being without being in a scanning channel, and the background values recorded at the time of the card being without being in the scanning channel are regarded as preset values. Before the card is scanned, check whether the background values in the scanning channel conform to the preset values. Drive the card to move a distance Y. Check whether the background values in the scanning channel conform to the preset values. Preset a preset movement distance, check whether a movement distance of the card or a distance of accumulated movements of the card exceeds the preset movement distance. Display that the card is stuck. Stop checking and proceeding an image calibration. Start scanning the card. Complete scanning the card and withdraw the card.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: June 4, 2019
    Assignee: Foxlink Image Technology Co., Ltd.
    Inventors: Yao Shuo Chang, Yi Hsuan Lin, Jui Yi Yu, Te Yu Chu
  • Patent number: 10305456
    Abstract: The present disclosure relates to a device for converting an optical pulse to an electronic pulse includes a photoresistor having first and second terminals and being capable of receiving a pulsed laser signal arising from a mode-locked laser source The first terminal is linked to a node for applying a reference potential via a resistive element and a capacitive element connected in parallel. The second terminal is connected to a node for applying a supply potential.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: May 28, 2019
    Assignee: STMicroelectronics SA
    Inventors: Hanae Zegmout, Denis Pache, Stephane Le Tual
  • Patent number: 10181544
    Abstract: Methods, systems, and devices are disclosed for photoconductive switch package configurations. In some aspects, a photoconductive switch package includes of a wide bandgap photoconductive material (e.g., GaN, ZnO, diamond, AlN, SiC, BN, etc.), a source for energetic photons (e.g., a laser), a mechanism to couple the laser into the switch, and a mechanism for high voltage to enter and leave the switch package. In some implementations, the disclosed photoconductive switch packages can be configured as a three terminal device, e.g., similar to transistors, with one of the terminals being laser input or the voltage input to the laser system.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: January 15, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Scott D. Nelson, George J. Caporaso, Steven A. Hawkins, Hoang T. Nguyen, Stephen Sampayan, Li-Fang Wang
  • Patent number: 9528312
    Abstract: An active object detection sensor is provided which allows an installation worker to easily adjust a detection area, and further identify an optimum position of a guide mark in a touch detection area. The active object detection sensor used for opening/closing of automatic an opening/closing unit (3) includes: an object determination unit (52) that during an operation mode determines that an object is in a detection area (A) when a detection level of a detection beam received by a receiver (22) exceeds an operation threshold to output an object detection signal; and a detection level indication unit (43) that during an adjustment mode indicates the detection level of the detection beam received by the receiver (22).
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: December 27, 2016
    Assignee: OPTEX CO., LTD.
    Inventors: Masayuki Shimazu, Takayasu Ikeda, Kenta Shimoji, Takuya Maeda
  • Patent number: 9279884
    Abstract: A method for determining a DOA (Direction of Arrival) comprises the following steps: (a) providing at least two antennas arranged with a squint angle; (b) producing at least two base beams between two adjacent base beams; (c) every two virtual beams of the multiple virtual beams which cross together at a specific angle are define to a virtual beam set; (d) synthesizing the two virtual beams of each one of the virtual beam sets to be a monopulse; and (e) determining the DOA of the object according to comparison between magnitude of demodulated signals corresponding to the monopulses. A device for estimating a DOA is also disclosed.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: March 8, 2016
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Shyh-Jong Chung, Jen-Hao Cheng
  • Publication number: 20140239159
    Abstract: An optical sensing device includes a plurality of scanning lines having a plurality of first scanning lines and a plurality of second scanning lines, a plurality of sensing lines, a plurality of reading lines, and a plurality of optical sensing modules electrically connected to the scanning lines. Each optical sensing module includes a first optical sensing unit and a second optical sensing unit, each of which includes a sensing unit, a charge storage unit, and a reading unit. The optical sensing module further includes a plurality of differential amplifiers electrically connected to the corresponding reading lines, for determining the difference between the reading lines, wherein the difference indicates the ambient light variation. A first transistor of the sensing unit of the first optical sensing unit is different to a first transistor of the sensing unit of the second sensing unit in channel width.
    Type: Application
    Filed: September 4, 2013
    Publication date: August 28, 2014
    Applicant: AU Optronics Corp.
    Inventors: Yung-Da CHEN, Yueh-Hung CHUNG
  • Publication number: 20140097359
    Abstract: The disclosed scanner allows detecting decay time characteristics of light emitted by a luminescent marking on an item which is transported, even at high speed, on a distribution/production line. The detection zone of the scanner's light sensor has a shape elongated along a path of the moving item, and the responsivity of the light sensor, within the wavelength range of the emitted luminescence light, is uniform over the detection zone. The control unit of the scanner is further operable to adapt the drive current, or drive voltage, powering its excitation light source to accordingly adapt the intensity of the excitation light delivered to the marking so that its light sensor can reliably measure the corresponding luminescence light response, and thus accurately determine a corresponding decay time value.
    Type: Application
    Filed: June 1, 2012
    Publication date: April 10, 2014
    Applicant: SICPA HOLDING SA
    Inventors: Milan Vasic, Nicola Duca
  • Publication number: 20130161491
    Abstract: An optical touch control module for providing at least one sensing area includes: a light-reflecting unit, a first light-sensing unit and a second light-sensing unit. The light-reflecting unit includes a light-reflecting element for partially surrounding the sensing area. The first light-sensing unit is disposed beside one edge of the at least one sensing area and adjacent to one end of the light-reflecting element. The first light-sensing unit includes at least one first light-emitting element, at least one first light-detecting element, and at least one first oscillating reflecting element oscillating depending on time. The second light-sensing unit is disposed beside another edge of the at least one sensing area and adjacent to another end of the light-reflecting element. The second light-sensing unit includes at least one second light-emitting element, at least one second light-detecting element, and at least one second oscillating reflecting element oscillating depending on time.
    Type: Application
    Filed: January 19, 2012
    Publication date: June 27, 2013
    Applicant: AZUREWAVE TECHNOLOGIES, INC.
    Inventors: CHUN-YU LU, CHI-HSING HSU
  • Patent number: 8435823
    Abstract: According to one embodiment, a method of manufacturing a back-illuminated solid-state imaging device including forming a mask with apertures corresponding to a pixel pattern on the surface of a semiconductor layer, implanting second-conductivity-type impurity ions into the semiconductor layer from the front side of the layer to form second-conductivity-type photoelectric conversion parts and forming a part where no ion has been implanted into a pixel separation region, forming at the surface of the semiconductor layer a signal scanning circuit for reading light signals obtained at the photoelectric conversion parts after removing the mask, and removing the semiconductor substrate and a buried insulating layer from the semiconductor layer after causing a support substrate to adhere to the front side of the semiconductor layer.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: May 7, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hirofumi Yamashita
  • Patent number: 8373108
    Abstract: The present invention relates to an indicia reading terminal operative to capture and process a succession of frames of image data during an operator activated read attempt. The succession of frames can comprise alternating frames, wherein the alternating frames can have first and second frame featurizations. The frames having the first frame featurization can have a first window position and the frames of the second featurization can have a second window position. In one embodiment, exposure of frames of the first featurization can be controlled according to a first exposure control process and exposure of frames of the second featurization can be controlled according to a second exposure control process. In one embodiment, gain that is applied to image signals of frames of the first featurization can be controlled according to a first gain control process and gain that is applied to image signals of frames of the second featurization can be controlled according to second gain control process.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: February 12, 2013
    Assignee: Hand Held Products, Inc.
    Inventors: Edward C. Bremer, William H. Havens, Chen Feng, Ynjiun P. Wang
  • Publication number: 20130033455
    Abstract: A light sensing panel includes sensors arranged in rows and columns, where the sensors receive a first bias voltage and a second bias voltage and output light sensing signals based on light incident thereto; first and second bias lines which transfers the first and second bias voltages, respectively, to the sensors, where each of the first and second bias lines includes a main line and sub lines diverged from the main line and arranged in a second direction corresponding to the columns;, where the sub lines of the first and second bias lines are alternately arranged, and where when two adjacent sub lines are shorted, the shorted sub line of the first bias line is separated from the main line of the first bias line.
    Type: Application
    Filed: January 10, 2012
    Publication date: February 7, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ki-Hun JEONG, Woongkwon KIM, Kun-Wook HAN, Daecheol KIM, Sungryul KIM, Sungjin MUN, Jung suk BANG, Byeonghoon CHO
  • Patent number: 8270047
    Abstract: First, second, and third image planes are obtained from at least one image sensor. The first image plane is formed from light of a first spectral distribution. The second image plane is formed from light of a second spectral distribution. The third image plane is formed from light of a spectral distribution which substantially covers the visible spectrum. First spatial frequency components are generated from the first, second and third image planes. A second spatial frequency component is generated from the third image plane. A color transform is applied to the first spatial frequency components from the first, second, and third image planes to obtain at least first, second and third transformed first spatial frequency image planes. The at least first, second and third transformed first spatial frequency image planes are combined with the second spatial frequency component from the third image plane to form an image.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: September 18, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Stephen Pollard, Andrew Hunter, Renato Keshet
  • Patent number: 8173947
    Abstract: A scanning projector includes a mirror that scans in two dimensions, at least one of which is sinusoidal. A position sensor provides a position signal that represents an angular displacement of the mirror. The position signal is amplified by an amplifier with time variant characteristics. A beam position determination component compensates for the time variant characteristics of the amplifier.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: May 8, 2012
    Assignee: Microvision, Inc.
    Inventors: Mark Champion, Steve Holmes, Lakhbir Singh Gandhi, Harpal Singh Sira, Bruce C. Rothaar
  • Patent number: 8173948
    Abstract: An optical coupling apparatus for a dual column charged particle beam tool allowing both optical imaging of an area of an integrated circuit, as well as localized heating of the integrated circuit to form silicide. In one embodiment, optical paths from a whitelight source and a laser source are coupled together by way of first and second beam splitters so that a single optical port of the dual column tool may be utilized for both imaging and heating. In another embodiment, a single laser source is employed to provide both illumination for standard microscopy-type imaging, as well as localized heating. In a third embodiment, a single laser source provides heating along with localized illumination for confocal scanning microscopy-type imaging.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: May 8, 2012
    Assignee: DCG Systems, Inc.
    Inventor: Chun-Cheng Tsao
  • Patent number: 8111433
    Abstract: An image reading device includes a reference member, a reading unit, a first reference value setting unit, a detecting unit, a second reference value setting unit, a determining unit, and a pixel value setting unit. The reading unit obtains image data and reference data. The first reference value setting unit sets a first reference value based on the reference data. The detecting unit detects a usage state of the reading unit. The second reference value setting unit sets a second reference value in accordance with the usage state. If the determining unit determines that the first reference value is in a predetermined condition, the pixel value setting unit sets a pixel value based on the image data and the first reference value; otherwise, the pixel value setting unit sets the pixel value based on the image data and the second reference value.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: February 7, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hideaki Nagasaka
  • Publication number: 20120006976
    Abstract: Disclosed are various embodiments of a single track reflective optical encoder featuring current amplifiers disposed in the signal generating circuit thereof. Voltage amplifiers and their associated feedback resistors are eliminated in the various embodiments disclosed herein, resulting in decreased die size and improved encoder signal accuracy and performance, especially at high speeds The single track optical encoder configurations disclosed herein permit very high resolution reflective optical encoders in small packages to be provided. Methods of making and using such optical encoders are also disclosed.
    Type: Application
    Filed: July 7, 2010
    Publication date: January 12, 2012
    Applicant: Avago Technologies ECBU(Singapore) Pte, Ltd.
    Inventors: Chung Min Thor, Gim Eng Chew
  • Patent number: 8004725
    Abstract: A device for scanning a document is provided. A document placed on a support surface is scanned line by line by a camera that is provided with an optoelectronic line sensor, and electric signals are produced. The line sensor includes a plurality of image recording elements disposed in a linear orientation. A lens system is used to image the light reflected by the document to be captured onto a part of the image recording elements.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: August 23, 2011
    Assignee: Chromasens GmbH
    Inventor: Markus Schnitzlein
  • Patent number: 7995114
    Abstract: A method for providing image illumination calibration includes: generating a plurality of images of a calibration target at a plurality of exposure levels, each image of the plurality of images being represented by a total pixel area; identifying a plurality of zones of the total pixel area, each zone of the plurality of zones corresponding to a particular image of the plurality of images at a particular exposure level of the plurality of exposure levels, with each zone representing a pixel sub-area that excludes saturated pixels; combining the plurality of zones for the plurality of images of the calibration target to generate a final calibration image; and generating a shading table to correct the final calibration image to obtain a uniform image of the calibration target over the total pixel area, the shading table including gain and offset values associated with each pixel of the total pixel area.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: August 9, 2011
    Assignee: Lexmark International, Inc.
    Inventors: Anthony Michael King, Mark Eric Miller
  • Publication number: 20110133091
    Abstract: A radiation detector includes an array of detector pixels each including an array of detector cells. Each detector cell includes a photodiode biased in a breakdown region and digital circuitry coupled with the photodiode and configured to output a first digital value in a quiescent state and a second digital value responsive to photon detection by the photodiode. Digital triggering circuitry is configured to output a trigger signal indicative of a start of an integration time period responsive to a selected number of one or more of the detector cells transitioning from the first digital value to the second digital value. Readout digital circuitry accumulates a count of a number of transitions of detector cells of the array of detector cells from the first digital state to the second digital state over the integration time period.
    Type: Application
    Filed: July 15, 2010
    Publication date: June 9, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Thomas FRACH, Klaus FIEDLER
  • Publication number: 20110032443
    Abstract: A sensing circuit includes a sensor array, a first controller and a second controller. The sensor array is charged by a sensing signal corresponding to an external light in response to a driving signal during a first time period and discharged in response to a switching signal during a second time period. The first controller provides the driving signal to the sensor array. The second controller provides the switching signal to the sensor array.
    Type: Application
    Filed: June 29, 2010
    Publication date: February 10, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventor: Jaehyun CHO
  • Publication number: 20100245809
    Abstract: An avalanche photodiode and a sensor array comprising an array of said avalanche photodiodes is disclosed. Then avalanche photodiode comprises a substrate of a first conductivity type; a first well of a second conductivity type formed within the substrate; a second well of the second conductivity type formed substantially overlying and extending into the first well; a heavily doped region of the first conductivity type formed substantially overlying and extending into the first well, the junction between the heavily doped region and the second well forming an avalanche multiplication region; a guard ring formed from a first conductivity material positioned substantially about the periphery of the multiplication region at least partially underlying the heavily doped region; and an outer well ring of the second conductivity type formed about the perimeter of the deep well and the guard ring.
    Type: Application
    Filed: March 17, 2008
    Publication date: September 30, 2010
    Applicant: JOHNS HOPKINS UNIVERSITY
    Inventors: Andreas G. Andreou, Miriam Adlerstein Marwick, Philippe O. Pouliquen
  • Publication number: 20100038520
    Abstract: A multifunction detector for detecting energy reflected from the surface, the detector comprising: a focal plane array in communication with the optical receiving path; and an optical receiving path; a read-only integrated circuit in communication with the optical receiving path, integrated with a focal plane array; and a processor programmed to operate the focal plane array and read-out integrated circuit in a first mode to process signals in a first frequency band, and in a second mode to process signals in a second, wider frequency band.
    Type: Application
    Filed: October 19, 2009
    Publication date: February 18, 2010
    Applicant: Lockheed Martin Corporation
    Inventors: William Yenisch, Richard LeBlanc
  • Patent number: 7612321
    Abstract: An optical coupling apparatus for a dual column charged particle beam tool allowing both optical imaging of an area of an integrated circuit, as well as localized heating of the integrated circuit to form silicide. In one embodiment, optical paths from a whitelight source and a laser source are coupled together by way of first and second beam splitters so that a single optical port of the dual column tool may be utilized for both imaging and heating. In another embodiment, a single laser source is employed to provide both illumination for standard microscopy-type imaging, as well as localized heating. In a third embodiment, a single laser source provides heating along with localized illumination for confocal scanning microscopy-type imaging.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: November 3, 2009
    Assignee: DCG Systems, Inc.
    Inventor: Chun-Cheng Tsao
  • Patent number: 7583419
    Abstract: A graphical scanner for scanning a graphical image includes a source for producing an optical beam, a monochromator for dividing the optical beam into a plurality of component beams for hyperspectral bandpasses, a director for directing the component beams to illuminate portions of the graphical image, a sensor for measuring a light intensity for the one or illuminated portions, and a translator for transforming the measured light intensities for each of the one or more portions into hyperspectral traces each representing a spectral power distribution. The translator further transforms the hyperspectral traces into one or more device-independent representations of color.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: September 1, 2009
    Inventor: Larry Kleiman
  • Publication number: 20090050788
    Abstract: A system for sequentially measuring the current generated by a plurality of individual current sources such as photodiodes monitoring the light output of individual LEDs representing discrete colors arranged in an array of pixels constituting an area illumination source such as an electronic billboard includes (1) a current measuring circuit connected to each current source/photodiode; (2) a separate switch such as a switching diode connected in series with each current source/photodiode and (3) sequential control means for sequentially enabling each switch/switching diode to conduct current from the current source/photodiode to the current measuring circuit while maintaining all of the remaining switches in the disable state.
    Type: Application
    Filed: September 12, 2006
    Publication date: February 26, 2009
    Inventor: Clint L. Deckert
  • Publication number: 20080319559
    Abstract: A method and an apparatus for transferring a substantially flat and substantially circular objects, such as wafers, from a pick-up position to a delivery position, the apparatus comprising, a manipulator, at least one source for emitting a source signal, at least one sensor for sensing said source signal and for providing a sensor signal, a computing device arranged for processing at least one sensor signal to obtain data on the position of said object, the manipulator being arranged for simultaneously transferring a first and a second object along a path in a substantially parallel orientation, spaced apart from each other, and substantially co-axially whereby the central axis of each object may be displaced radially, a said source and a said sensor are connected by a virtual line, whereby the virtual line includes an angle with the central axes of the first and second objects.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 25, 2008
    Inventors: Christianus Gerardus Maria De Ridder, Theodorus Gerardus Maria Oosterlaken
  • Patent number: 7127098
    Abstract: The present invention provides an image detection system capable of picking up a high resolution image of the surface condition of a circuit pattern-formed wafer without being affected by steep pattern steps, discontinuous reflectance distributions and optically transparent substances which are formed after resist patterns are formed and removed. A defect detection apparatus using such an image detection apparatus is also provided by the invention.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: October 24, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Atsushi Shimoda, Masahiro Watanabe, Syunji Maeda, Hiroshi Goto, Tadashi Suzuki
  • Publication number: 20020162953
    Abstract: According to the present invention, an optical output automatic control circuit includes an optical output cutoff control circuit outside its feedback loop, and sets an optical output setting voltage at the ground level to prevent overshoot of the optical output while an optical output cutoff signal is being input.
    Type: Application
    Filed: March 12, 2002
    Publication date: November 7, 2002
    Inventors: Takeshi Yoshida, Masaki Hirose, Takeshi Inagaki, Katsuhito Toyoda
  • Patent number: 6278513
    Abstract: A digital copier includes an image reading part and a printing part. The image reading part includes reading means for electrically scanning lines of image information of a document in a primary scanning direction at a predetermined cycle to output image signals for the lines; secondary scanning means for mechanically moving a primary scanning position with respect to the document at a constant secondary scanning speed V in a secondary scanning direction perpendicular to the primary scanning direction; and line thinning means for thinning out lines for the image signals to 1/N where N is an integer. The printing part prints an image on a printing medium based on the image signals supplied from the image reading part. The lines of image information of the document are copied at an arbitrary zoom ratio in the secondary scanning direction by combining a value of the integer N and a value of the secondary scanning speed V.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: August 21, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuyuki Murata, Takehito Yamaguchi, Hideyuki Kuwano, Yuji Okada, Joji Tanaka, Naoki Takahashi, Kenji Hisatomi