Patents by Inventor Algird M. Gudaitis
Algird M. Gudaitis 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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Patent number: 11031749Abstract: The description relates to laser control. One example can include a laser that has a laser emitter configured to generate a laser beam for intervals of time (e.g., pixel times). The laser can have a compensation and control component configured to receive a predicted laser emitter temperature of the laser emitter, obtain a desired optical power for an interval, and compute a compensated electrical current for the interval utilizing multiple light to current look up tables. Individual light to current look up tables can relate to specific laser emitter temperatures.Type: GrantFiled: April 6, 2020Date of Patent: June 8, 2021Assignee: Microsoft Technology Licensing, LLCInventors: Mark Champion, Algird M. Gudaitis
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Publication number: 20200303899Abstract: The description relates to laser control. One example can include a laser that has a laser emitter configured to generate a laser beam for intervals of time (e.g., pixel times). The laser can have a compensation and control component configured to receive a predicted laser emitter temperature of the laser emitter, obtain a desired optical power for an interval, and compute a compensated electrical current for the interval utilizing multiple light to current look up tables. Individual light to current look up tables can relate to specific laser emitter temperatures.Type: ApplicationFiled: April 6, 2020Publication date: September 24, 2020Applicant: Microsoft Technology Licensing, LLCInventors: Mark CHAMPION, Algird M. GUDAITIS
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Patent number: 10651626Abstract: The description relates to laser control. One example can include a laser that has a laser emitter configured to generate a laser beam for intervals of time (e.g., pixel times). The laser can have a compensation and control component configured to receive a predicted laser emitter temperature of the laser emitter, obtain a desired optical power for an interval, and compute a compensated electrical current for the interval utilizing multiple light to current look up tables. Individual light to current look up tables can relate to specific laser emitter temperatures.Type: GrantFiled: August 10, 2018Date of Patent: May 12, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Mark Champion, Algird M. Gudaitis
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Publication number: 20200052464Abstract: The description relates to laser control. One example can include a laser that has a laser emitter configured to generate a laser beam for intervals of time (e.g., pixel times). The laser can have a compensation and control component configured to receive a predicted laser emitter temperature of the laser emitter, obtain a desired optical power for an interval, and compute a compensated electrical current for the interval utilizing multiple light to current look up tables. Individual light to current look up tables can relate to specific laser emitter temperatures.Type: ApplicationFiled: August 10, 2018Publication date: February 13, 2020Applicant: Microsoft Technology Licensing, LLCInventors: Mark CHAMPION, Algird M. GUDAITIS
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Publication number: 20190214831Abstract: The herein described technology provides a system with multiple batteries connected in parallel and having disparate charge and/or discharge characteristics. When a voltage source is coupled to a shared charging node, the multiple batteries are simultaneously charged through the shared charging node.Type: ApplicationFiled: January 10, 2018Publication date: July 11, 2019Inventors: Stefan Jon KRISTJANSSON, Algird M. GUDAITIS, Laurentiu OLARIU
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Patent number: 9154093Abstract: A system includes a photodetector, a first amplifier, a second amplifier, and a filter. The photodetector is to detect backscattered light from liquid drops to provide a current signal. The first amplifier is to convert the current signal into a first voltage signal. The second amplifier is to amplify the first voltage signal to provide a second voltage signal, and the filter is to filter the second voltage signal to provide an output signal to indicate the presence or absence of liquid drops.Type: GrantFiled: January 25, 2013Date of Patent: October 6, 2015Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Algird M. Gudaitis, David E. Smith
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Patent number: 8845069Abstract: A circuit includes a capacitive-type humidity sensor. The circuit provides start and stop signals to a processor in accordance with a charge voltage across the sensor. The processor performs a counting function to derive an integer count value in response to the start and stop signals. The processor uses the integer count value to determine parameters for controlling an ink-jetting print engine. Printing speed can be controlled in accordance with ambient humidity and/or temperature so that the printed media are sufficiently dried before handling by a user or other operations.Type: GrantFiled: January 28, 2013Date of Patent: September 30, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Duane Koehler, Algird M. Gudaitis, Mark Westlund
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Publication number: 20140210897Abstract: A circuit includes a capacitive-type humidity sensor. The circuit provides start and stop signals to a processor in accordance with a charge voltage across the sensor. The processor performs a counting function to derive an integer count value in response to the start and stop signals. The processor uses the integer count value to determine parameters for controlling an ink-jetting print engine. Printing speed can be controlled in accordance with ambient humidity and/or temperature so that the printed media are sufficiently dried before handling by a user or other operations.Type: ApplicationFiled: January 28, 2013Publication date: July 31, 2014Applicant: Hewlett-Packard Development Company, L.P.Inventors: Duane KOEHLER, Algird M. Gudaitis, Mark Westlund
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Publication number: 20140209787Abstract: A system includes a photodetector, a first amplifier, a second amplifier, and a filter. The photodetector is to detect backscattered light from liquid drops to provide a current signal. The first amplifier is to convert the current signal into a first voltage signal. The second amplifier is to amplify the first voltage signal to provide a second voltage signal, and the filter is to filter the second voltage signal to provide an output signal to indicate the presence or absence of liquid drops.Type: ApplicationFiled: January 25, 2013Publication date: July 31, 2014Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Algird M. Gudaitis, David E. Smith
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Patent number: 8388104Abstract: A system is provided that includes an encoder strip having encoder markings, first and second optical encoders positioned at a fixed distance from one another on a substrate and, responsive to being moved along the encoder strip, configured to generate first and second signals, respectively, that each indicate detection of the encoder markings on the encoder strip and processing circuitry configured to determine a current phase difference between the first and the second signals using a first portion of the first signal that corresponds to a first plurality of encoder markings and a second portion of the second signal that corresponds to a second plurality of encoder markings.Type: GrantFiled: July 25, 2007Date of Patent: March 5, 2013Assignee: Hewlett-Packard Development Company, L.P.Inventors: Rick M. Tanaka, Algird M. Gudaitis, David K. Klaffenbach
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Patent number: 7756681Abstract: Embodiments of power supply circuits are disclosed in which a filter function is performed on a count value from a counter that counts the number of times of enabling of a power supply circuit.Type: GrantFiled: March 10, 2005Date of Patent: July 13, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: David K. Klaffenbach, Michael J. Campin, Algird M. Gudaitis, Chadwick W. Stryker, Jon S. Boehm
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Patent number: 7753371Abstract: This invention relates to a media jam and media bent corner detector, comprising: a carriage; a transducer operatively connected to or adjacent to the carriage; and a piezoelectric film beam operatively connected to the transducer such that a portion of the beam substantially extends into a media path to detect the presence of a media jam or a media bent corner.Type: GrantFiled: December 12, 2005Date of Patent: July 13, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Algird M Gudaitis, Tod S. Heiles, Kit Hui
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Patent number: 7537304Abstract: Apparatus and methods for color calibrating low cost sensors in a printing system are disclosed. Exemplary embodiments include printing targets from multiple printhead die; making multiple readings of each target; fitting a curve to the acquired data; and generating calibration coefficients based on the fitted curve. Exemplary embodiments may include a generic calibration to map sensor measurements to a colorimetric color space, and a specific calibration to account for sensor-to-sensor variation.Type: GrantFiled: April 28, 2006Date of Patent: May 26, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Yifeng Wu, Algird M. Gudaitis
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Patent number: 7506180Abstract: Embodiments of a switching power supply circuit are disclosed wherein the number of times that a switch of the circuit is enabled is counted.Type: GrantFiled: March 10, 2005Date of Patent: March 17, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: David K. Klaffenbach, Michael J. Campin, Algird M. Gudaitis, Chadwick W. Stryker
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Publication number: 20090027438Abstract: A system is provided that includes an encoder strip having encoder markings, first and second optical encoders positioned at a fixed distance from one another on a substrate and, responsive to being moved along the encoder strip, configured to generate first and second signals, respectively, that each indicate detection of the encoder markings on the encoder strip and processing circuitry configured to determine a current phase difference between the first and the second signals using a first portion of the first signal that corresponds to a first plurality of encoder markings and a second portion of the second signal that corresponds to a second plurality of encoder markings.Type: ApplicationFiled: July 25, 2007Publication date: January 29, 2009Inventors: Rick M. Tanaka, Algird M. Gudaitis, David K. Klaffenbach
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Patent number: 7286261Abstract: Correcting color values for color calibration is disclosed. A sensor measures a color calibration pattern output by a device, to color values for the patch. Corrective action(s) are then performed on the color values. A first such action corrects for measurement corruption of a patch color of the patch resulting from the sensor erroneously measuring adjacent patch colors to the desired patch color. A second action corrects for non-parallel motion of the sensor while measuring the patch. A third corrective action corrects for ambient light detected by the sensor while measuring the patch, without necessarily filtering the sensor. A final action corrects for slow-drift measurement corruption of the patch, by both scaling and offsetting the color values.Type: GrantFiled: October 2, 2001Date of Patent: October 23, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Algird M Gudaitis, William Lester Plishker
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Patent number: 7227673Abstract: A method and apparatus for color measurement using a physically distributed multiplicity of sensors. Broad band illumination is provided to irradiate a test pattern. The sensors are used to measure color characteristics of discrete areas of a region of the pattern that has an intended single color by providing the pattern and sensors arrayed in a substantially matching geometric configuration.Type: GrantFiled: January 23, 2001Date of Patent: June 5, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventor: Algird M. Gudaitis
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Patent number: 7034942Abstract: A method, includes illuminating a first portion of a colored region with first light from a gas discharge tube and generating a first output using a diffuse reflection of the first light from the first portion. The method further includes illuminating a second portion of the colored region with second light from a first solid state lamp and generating a second output using a diffuse reflection of the second light from the second portion. Additionally, the method includes illuminating a third portion of the colored region with third light from a second solid state lamp and generating a third output using a diffuse reflection of the third light from the third portion.Type: GrantFiled: January 7, 2002Date of Patent: April 25, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Algird M Gudaitis, Sam M. Sarmast, Tod S. Heiles
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Patent number: 6905187Abstract: A compact optical sensing system is used in hardcopy devices for scanning and/or printing images, for instance, using inkjet printing technology in desktop printing or in photographic printers appearing in grocery and variety stores. Several light emitting diodes (“LEDs”) illuminate a sheet of print media, and one or more photodiodes receive light reflected from the sheet. The photodiode generates signals in response to the light received, and the hardcopy device uses these signals to adjust printing parameters for optimal print quality. Using a chip-on-board process, the bare silicon die for each component is wire bonded directly to a printed circuit board assembly, allowing at least four LEDs (blue, green, red and soft-orange) to be grouped closely together in a space smaller than that occupied by a factory-made, single-packaged LED. A calibrating system uses a white target covered for cleanliness by a windowed door which is opened/closed by a printhead carriage.Type: GrantFiled: September 17, 2003Date of Patent: June 14, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Dan Arquilevich, Tod S. Heiles, Algird M. Gudaitis, Sam Sarmast
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Patent number: 6764158Abstract: A compact optical sensing system is used in hardcopy devices for scanning and/or printing images, for instance, using inkjet printing technology in desktop printing or in photographic printers appearing in grocery and variety stores. Several light emitting diodes (“LEDs”) illuminate a sheet of print media, and one or more photodiodes receive light reflected from the sheet. The photodiode generates signals in response to the light received, and the hardcopy device uses these signals to adjust printing parameters for optimal print quality. Using a chip-on-board process, the bare silicon die for each component is wire bonded directly to a printed circuit board assembly, allowing at least four LEDs (blue, green, red and soft-orange) to be grouped closely together in a space smaller than that occupied by a factory-made, single-packaged LED. A calibrating system uses a white target covered for cleanliness by a windowed door which is opened/closed by a printhead carriage.Type: GrantFiled: October 2, 2001Date of Patent: July 20, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: Dan Arquilevich, Tod S. Heiles, Algird M. Gudaitis, Sam Sarmast