Patents by Inventor Matthew D. Blasczak
Matthew D. Blasczak has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240113496Abstract: An optical pattern generating system for providing an aiming pattern in a field of view (FOV). The optical pattern generating system includes a light source configured to provide light along an optical axis, the light source including a vertical-cavity surface-emitting laser. The system further includes an optical substrate disposed along the optical axis configured to receive the light from the light source, the optical substrate having a first surface having a first flat optical element thereon, the first flat optical element being an element that collimates the light, a second surface having a second flat optical element thereon, the second flat optical element configured to diffract the light to form an optical pattern, and a thickness defined by the distance between the first surface and second surface.Type: ApplicationFiled: September 29, 2022Publication date: April 4, 2024Inventors: Matthew D. Blasczak, Chinh Tan
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Patent number: 11934911Abstract: Method and systems for driving an aiming assembly of a barcode imager are provided. An example method includes obtaining an operating mode of the barcode imager having an aiming assembly and, in response, determining a duty cycle of an aiming pulse of the aiming assembly. That duty cycle is determined as a percentage of a frame duration of an imager sensor and, further, such that simultaneous constraints are satisfied by the aiming pulse. The constraints include a simultaneous frame duration-independent, peak pulse optical power constraint and a frame duration-dependent heat dissipation constraint.Type: GrantFiled: October 12, 2021Date of Patent: March 19, 2024Assignee: Zebra Technologies CorporationInventors: Vladimir Gurevich, David Tsi Shi, Jason S. Mak, Thomas Lackemann, Matthew D. Blasczak
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Publication number: 20230111084Abstract: Methods and devices for driving a laser diode are disclosed herein. An example method includes a boost regulator outputting a maximum boost voltage to drive a laser diode that is configured to output light within a wavelength range of 495 nanometers (nm) to 570 nm. A boost servo may measure a laser voltage, and calculate a voltage difference between the two voltages. The servo may then compare the voltage difference to a drive voltage to determine an excess voltage, and may cause the boost regulator to output an optimum voltage based on the excess voltage. The boost servo may also calculate a low voltage to drive at least one additional component that is electrically coupled to the boost regulator when the laser diode is inactive; and may cause the boost regulator to output the low voltage to power the at least one additional component.Type: ApplicationFiled: October 12, 2021Publication date: April 13, 2023Inventors: Matthew D. Blasczak, James R. Giebel, Mark Weitzner, Gary G. Schneider
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Publication number: 20230112765Abstract: Method and systems for driving an aiming assembly of a barcode imager are provided. An example method includes obtaining an operating mode of the barcode imager having an aiming assembly and, in response, determining a duty cycle of an aiming pulse of the aiming assembly. That duty cycle is determined as a percentage of a frame duration of an imager sensor and, further, such that simultaneous constraints are satisfied by the aiming pulse. The constraints include a simultaneous frame duration-independent, peak pulse optical power constraint and a frame duration-dependent heat dissipation constraint.Type: ApplicationFiled: October 12, 2021Publication date: April 13, 2023Inventors: Vladimir Gurevich, David Tsi Shi, Jason S. Mak, Thomas Lackemann, Matthew D. Blasczak
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Publication number: 20220077644Abstract: A system is disclosed which includes a laser which has a calibrated optical power and a calibrated tolerance. The system includes a driving circuit configured to generate a first current pulse and a second current pulse. The system includes a primary observer module configured to observe a first and second primary input. The system includes one or more secondary observer modules configured to observe one or more first and one or more second secondary inputs. The system includes a controller communicatively coupled to the laser, driving circuit, primary observer module, and the one or more secondary observer modules. The controller is configured to receive an information packet, calculate an optical power, determine a deviation of the optical power from the calibrated optical power, compare the deviation with the calibrated tolerance, and perform an action if the deviation exceeds the calibrated tolerance.Type: ApplicationFiled: November 19, 2021Publication date: March 10, 2022Inventors: Vladimir Gurevich, Matthew D. Blasczak, Peter Fazekas
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Patent number: 11211766Abstract: A system is disclosed which includes a laser which has a calibrated optical power and a calibrated tolerance. The system includes a driving circuit configured to generate a first current pulse and a second current pulse. The system includes a primary observer module configured to observe a first and second primary input. The system includes one or more secondary observer modules configured to observe one or more first and one or more second secondary inputs. The system includes a controller communicatively coupled to the laser, driving circuit, primary observer module, and the one or more secondary observer modules. The controller is configured to receive an information packet, calculate an optical power, determine a deviation of the optical power from the calibrated optical power, compare the deviation with the calibrated tolerance, and perform an action if the deviation exceeds the calibrated tolerance.Type: GrantFiled: December 20, 2018Date of Patent: December 28, 2021Assignee: Zebra Technologies CorporationInventors: Vladimir Gurevich, Matthew D. Blasczak, Peter Fazekas
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Patent number: 11182573Abstract: Imaging arrangements and barcode readers including such imaging arrangements. An imaging arrangement for use in a barcode reader includes a housing. The imaging arrangement also includes a light source configured to emit light along a central light axis. The light source is disposed in the housing. The imaging arrangement also includes a lens having a first surface and a second surface opposite the first surface. The lens is disposed in the housing. The first surface is configured to face the light source and is structured to substantially collimate light received from the light source into a collimated beam. The second surface includes surface structures structured to generate a patterned beam in response to receiving the collimated beam.Type: GrantFiled: June 15, 2020Date of Patent: November 23, 2021Assignee: Zebra Technologies CorporationInventors: Edward Barkan, Darran Michael Handshaw, Matthew D. Blasczak
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Publication number: 20200380224Abstract: Imaging arrangements and barcode readers including such imaging arrangements. An imaging arrangement for use in a barcode reader includes a housing. The imaging arrangement also includes a light source configured to emit light along a central light axis. The light source is disposed in the housing. The imaging arrangement also includes a lens having a first surface and a second surface opposite the first surface. The lens is disposed in the housing. The first surface is configured to face the light source and is structured to substantially collimate light received from the light source into a collimated beam. The second surface includes surface structures structured to generate a patterned beam in response to receiving the collimated beam.Type: ApplicationFiled: June 15, 2020Publication date: December 3, 2020Inventors: Edward Barkan, Darran Michael Handshaw, Matthew D. Blasczak
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Publication number: 20200203915Abstract: A system is disclosed which includes a laser which has a calibrated optical power and a calibrated tolerance. The system includes a driving circuit configured to generate a first current pulse and a second current pulse. The system includes a primary observer module configured to observe a first and second primary input. The system includes one or more secondary observer modules configured to observe one or more first and one or more second secondary inputs. The system includes a controller communicatively coupled to the laser, driving circuit, primary observer module, and the one or more secondary observer modules. The controller is configured to receive an information packet, calculate an optical power, determine a deviation of the optical power from the calibrated optical power, compare the deviation with the calibrated tolerance, and perform an action if the deviation exceeds the calibrated tolerance.Type: ApplicationFiled: December 20, 2018Publication date: June 25, 2020Inventors: Vladimir Gurevich, Matthew D. Blasczak, Peter Fazekas
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Publication number: 20200193107Abstract: A method of reading a barcode is provided. A target containing a barcode is illuminated in a first illumination pattern by an illumination assembly. While the target is illuminated in the first illumination pattern, a first image of the target is captured and transmitted to a barcode decoder. Based on an indication of an unsuccessful attempt to decode the barcode using the first image of the target, the target is illuminated in a second illumination pattern and a second image of the target is captured, and the target is illuminated in a third illumination pattern and a third image of the target is captured. A fourth image of the target (a composite of the second and third image) is constructed using the second and third image of the target. The fourth image of the target is transmitted to the barcode decoder for decoding.Type: ApplicationFiled: December 14, 2018Publication date: June 18, 2020Inventors: Vladimir Gurevich, Matthew D. Blasczak, Michelle X. Wang, David P. Goren
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Publication number: 20200193106Abstract: Imaging arrangements and barcode readers including such imaging arrangements. An imaging arrangement for use in a barcode reader includes a housing. The imaging arrangement also includes a light source configured to emit light along a central light axis. The light source is disposed in the housing. The imaging arrangement also includes a lens having a first surface and a second surface opposite the first surface. The lens is disposed in the housing. The first surface is configured to face the light source and is structured to substantially collimate light received from the light source into a collimated beam. The second surface includes surface structures structured to generate a patterned beam in response to receiving the collimated beam.Type: ApplicationFiled: December 18, 2018Publication date: June 18, 2020Inventors: Edward Barkan, Darran Michael Handshaw, Matthew D. Blasczak
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Patent number: 10685198Abstract: Imaging arrangements and barcode readers including such imaging arrangements. An imaging arrangement for use in a barcode reader includes a housing. The imaging arrangement also includes a light source configured to emit light along a central light axis. The light source is disposed in the housing. The imaging arrangement also includes a lens having a first surface and a second surface opposite the first surface. The lens is disposed in the housing. The first surface is configured to face the light source and is structured to substantially collimate light received from the light source into a collimated beam. The second surface includes surface structures structured to generate a patterned beam in response to receiving the collimated beam.Type: GrantFiled: December 18, 2018Date of Patent: June 16, 2020Assignee: Zebra Technologies CorporationInventors: Edward Barkan, Darran Michael Handshaw, Matthew D. Blasczak
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Patent number: 8971366Abstract: Output power of a laser beam emitted by a laser in an electro-optical reader is regulated by storing a killswitch byte in non-volatile memory, and by checking whether the killswitch byte is in a default state or a kill state prior to performing reading. A controller detects a fault condition and responsively changes the killswitch byte to the kill state, in order to permanently deenergize the laser and to maintain the laser permanently deenergized after the killswitch byte has been changed to the kill state.Type: GrantFiled: November 2, 2012Date of Patent: March 3, 2015Assignee: Symbol Technologies, Inc.Inventors: Matthew D. Blasczak, Chang Chen, Peter Fazekas, James R. Giebel, Vladimir Gurevich
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Patent number: 8903201Abstract: A system and method for processing an image of a document is disclosed. The method includes receiving at least one predetermined document parameter of the document. An image of the document is previewed on a display using a camera. The display provides a visual indication of a defect in the image based on the preview. A processor proposes a procedure to minimize the defect in the image. A user adjusts the camera in response to the proposal. The processor processes the image of the document.Type: GrantFiled: December 12, 2011Date of Patent: December 2, 2014Assignee: Symbol Technologies, Inc.Inventors: Matthew D. Blasczak, Alan J. Epshteyn, Mehaboob Kumbalakkuzhiyil, Bruno Vande Vyvre, Michelle X. Wang
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Publication number: 20140126594Abstract: Output power of a laser beam emitted by a laser in an electro-optical reader is regulated by storing a killswitch byte in non-volatile memory, and by checking whether the killswitch byte is in a default state or a kill state prior to performing reading. A controller detects a fault condition and responsively changes the killswitch byte to the kill state, in order to permanently deenergize the laser and to maintain the laser permanently deenergized after the killswitch byte has been changed to the kill state.Type: ApplicationFiled: November 2, 2012Publication date: May 8, 2014Applicant: Symbol Technologies, Inc.Inventors: Matthew D. Blasczak, Chang Chen, Peter Fazekas, James R. Giebel, Vladimir Gurevich
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Publication number: 20130148914Abstract: A system and method for processing an image of a document is disclosed. The method includes receiving at least one predetermined document parameter of the document. An image of the document is previewed on a display using a camera. The display provides a visual indication of a defect in the image based on the preview. A processor proposes a procedure to minimize the defect in the image. A user adjusts the camera in response to the proposal. The processor processes the image of the document.Type: ApplicationFiled: December 12, 2011Publication date: June 13, 2013Applicant: Symbol Technologies, Inc.Inventors: Matthew D. Blasczak, Alan J. Epshteyn, Mehaboob Kumbalakkuzhiyil, Bruno Vande Vyvre, Michelle X. Wang
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Patent number: 7172125Abstract: An intelligent gain selection circuit replaces the gain set by an automatic gain control circuit in an electro-optical reader for reading indicia, such as bar code symbols, with a larger gain where specular reflections, high contrast edges, or other noise operative to produce dominant high voltage peaks in an analog signal generated by a sensor in the reader, are detected.Type: GrantFiled: April 26, 2004Date of Patent: February 6, 2007Assignee: Symbol Technologies, Inc.Inventors: Dayou Wang, Matthew D. Blasczak, Edward Barkan, Vladimir Gurevich, Pierre Craen