Patents by Inventor Mark Harrington
Mark Harrington 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: 10380954Abstract: Methods for driving electro-optic displays, especially bistable displays, include (a) using two-part waveforms, the first part of which is dependent only upon the initial state of the relevant pixel; (b) measuring the response of each individual pixel and storing for each pixel data indicating which of a set of standard drive schemes are to be used for that pixel; (c) for at least one transition in a drive scheme, applying multiple different waveforms to pixels on a random basis; and (d) when updating a limited area of the display, driving “extra” pixels in an edge elimination region to avoid edge effects.Type: GrantFiled: July 12, 2016Date of Patent: August 13, 2019Assignee: E Ink CorporationInventors: Demetrious Mark Harrington, Kenneth R. Crounse, Alain Bouchard, Stephen J. Telfer, Ana L. Lattes
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Patent number: 9928810Abstract: Methods are described for sequentially rendering fonts at multiple bit depths while reducing differences in visual appearance between the fonts rendered at different bit depths. The same hinting may be used for rendering the font at two different bit depths. Methods for reducing artifacts including edge artifacts also are described, including the use of font masks for updating electro-optic displays.Type: GrantFiled: January 29, 2016Date of Patent: March 27, 2018Assignee: E Ink CorporationInventors: Demetrious Mark Harrington, Alain Bouchard, Matthew J. Aprea, Kenneth R. Crounse
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Publication number: 20170301274Abstract: An electro-optic display having a plurality of pixels is driven from a first image to a second image using a first drive scheme, and then from the second image to a third image using a second drive scheme different from the first drive scheme and having at least one impulse differential gray level having an impulse potential different from the corresponding gray level in the first drive scheme. Each pixel which is in an impulse differential gray level in the second image is driven from the second image to the third image using a modified version of the second drive scheme which reduces its impulse differential The subsequent transition from the third image to a fourth image is also conducted using the modified second drive scheme but after a limited number of transitions using the modified second drive scheme, all subsequent transitions are conducted using the unmodified second drive scheme.Type: ApplicationFiled: June 26, 2017Publication date: October 19, 2017Inventors: Demetrious Mark HARRINGTON, Kenneth R. CROUNSE, Karl Raymond AMUNDSON, Teck Ping SIM, Matthew J. APREA
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Patent number: 9721495Abstract: An electro-optic display having a plurality of pixels is driven from a first image to a second image using a first drive scheme, and then from the second image to a third image using a second drive scheme different from the first drive scheme and having at least one impulse differential gray level having an impulse potential different from the corresponding gray level in the first drive scheme. Each pixel which is in an impulse differential gray level in the second image is driven from the second image to the third image using a modified version of the second drive scheme which reduces its impulse differential The subsequent transition from the third image to a fourth image is also conducted using the modified second drive scheme but after a limited number of transitions using the modified second drive scheme, all subsequent transitions are conducted using the unmodified second drive scheme.Type: GrantFiled: February 26, 2014Date of Patent: August 1, 2017Assignee: E Ink CorporationInventors: Demetrious Mark Harrington, Kenneth R. Crounse, Karl Raymond Amundson, Teck Ping Sim, Matthew J. Aprea
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Publication number: 20170178574Abstract: A method of operating an electro-optic display in which an image is scrolled across the display, and in which a clearing bar is provided between two portions of the image being scrolled, the clearing bar scrolling across in display in synchronization with said two portions of the image, the writing of the clearing bar being effected such that every pixel over which the clearing bar passes is rewritten.Type: ApplicationFiled: March 2, 2017Publication date: June 22, 2017Inventors: Demetrious Mark HARRINGTON, Theodore A. SJODIN, Robert W. ZEHNER, Timothy J. O'MALLEY, Benjamin Harris Paletsky
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Patent number: 9620067Abstract: An electro-optic display uses first and second drive schemes differing from each other, for example a slow gray scale drive scheme and a fast monochrome drive scheme. The display is first driven to a pre-determined transition image using the first drive scheme, then driven to a second image, different from the transition image, using the second drive scheme. The display is thereafter driven to the same transition image using the second drive scheme; and from thence to a third image, different from both the transition image and the second image, using the first drive scheme.Type: GrantFiled: November 23, 2015Date of Patent: April 11, 2017Assignee: E Ink CorporationInventors: Demetrious Mark Harrington, Theodore A. Sjodin, Robert W. Zehner, Timothy J. O'Malley, Benjamin Harris Paletsky
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Patent number: 9495918Abstract: A method is provided for driving electro-optic displays, especially bistable displays, to avoid edge effects when driving a limited area of the display. Pixels in an edge elimination region, at least one pixel wide and substantially surrounding the limited area, are driven from their original gray level to an intermediate gray level, and then back to their original gray level.Type: GrantFiled: February 28, 2014Date of Patent: November 15, 2016Assignee: E INK CORPORATIONInventors: Demetrious Mark Harrington, Kenneth R. Crounse, Karl Raymond Amundson, Matthew J. Aprea, Theodore A. Sjodin
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Publication number: 20160321981Abstract: Methods for driving electro-optic displays, especially bistable displays, include (a) using two-part waveforms, the first part of which is dependent only upon the initial state of the relevant pixel; (b) measuring the response of each individual pixel and storing for each pixel data indicating which of a set of standard drive schemes are to be used for that pixel; (c) for at least one transition in a drive scheme, applying multiple different waveforms to pixels on a random basis; and (d) when updating a limited area of the display, driving “extra” pixels in an edge elimination region to avoid edge effects.Type: ApplicationFiled: July 12, 2016Publication date: November 3, 2016Inventors: Demetrious Mark Harrington, Kenneth R. Crounse, Karl Raymond Amundson, Matthew J. Aprea, Theodore A. Sjodin, Alain Bouchard, Stephen J. Telfer, Ana L. Lattes, Yuval Ben-Dov
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Publication number: 20160314766Abstract: Methods are described for sequentially rendering fonts at multiple bit depths while reducing differences in visual appearance between the fonts rendered at different bit depths. The same hinting may be used for rendering the font at two different bit depths. Methods for reducing artifacts including edge artifacts also are described, including the use of font masks for updating electro-optic displays.Type: ApplicationFiled: January 29, 2016Publication date: October 27, 2016Inventors: Demetrious Mark Harrington, Alain Bouchard, Matthew J. Aprea, Kenneth R. Crounse
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Publication number: 20160078820Abstract: An electro-optic display uses first and second drive schemes differing from each other, for example a slow gray scale drive scheme and a fast monochrome drive scheme. The display is first driven to a pre-determined transition image using the first drive scheme, then driven to a second image, different from the transition image, using the second drive scheme. The display is thereafter driven to the same transition image using the second drive scheme; and from thence to a third image, different from both the transition image and the second image, using the first drive scheme.Type: ApplicationFiled: November 23, 2015Publication date: March 17, 2016Applicant: E Ink CorporationInventors: Demetrious Mark Harrington, Theodore A. Sjodin, Robert W. Zehner, Timothy J. O'Malley, Benjamin Harris Paletsky
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Patent number: 9230492Abstract: An electro-optic display uses first and second drive schemes differing from each other, for example a slow gray scale drive scheme and a fast monochrome drive scheme. The display is first driven to a pre-determined transition image using the first drive scheme, then driven to a second image, different from the transition image, using the second drive scheme. The display is thereafter driven to the same transition image using the second drive scheme; and from then to a third image, different from both the transition image and the second image, using the first drive scheme.Type: GrantFiled: April 11, 2011Date of Patent: January 5, 2016Assignee: E Ink CorporationInventors: Demetrious Mark Harrington, Theodore A. Sjodin, Robert W. Zehner, Timothy J. O'Malley, Benjamin Harris Paletsky
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Publication number: 20140292830Abstract: Methods for driving electro-optic displays, especially bistable displays, include (a) using two-part waveforms, the first part of which is dependent only upon the initial state of the relevant pixel; (b) measuring the response of each individual pixel and storing for each pixel data indicating which of a set of standard drive schemes are to be used for that pixel; (c) for at least one transition in a drive scheme, applying multiple different waveforms to pixels on a random basis; and (d) when updating a limited area of the display, driving “extra” pixels in an edge elimination region to avoid edge effects.Type: ApplicationFiled: February 28, 2014Publication date: October 2, 2014Inventors: Demetrious Mark Harrington, Kenneth R. Crounse, Karl Raymond Amundson, Matthew J. Aprea, Theodore A. Sjodin, Alain Bouchard, Stephen J. Telfer, Ana L. Lattes, Yuval Ben-Dov
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Publication number: 20140240373Abstract: An electro-optic display having a plurality of pixels is driven from a first image to a second image using a first drive scheme, and then from the second image to a third image using a second drive scheme different from the first drive scheme and having at least one impulse differential gray level having an impulse potential different from the corresponding gray level in the first drive scheme. Each pixel which is in an impulse differential gray level in the second image is driven from the second image to the third image using a modified version of the second drive scheme which reduces its impulse differential The subsequent transition from the third image to a fourth image is also conducted using the modified second drive scheme but after a limited number of transitions using the modified second drive scheme, all subsequent transitions are conducted using the unmodified second drive scheme.Type: ApplicationFiled: February 26, 2014Publication date: August 28, 2014Inventors: Demetrious Mark Harrington, Kenneth R. Crounse, Karl Raymond Amundson, Teck Ping Sim, Matthew J. Aprea
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Patent number: 8622687Abstract: A method of operating a compressor in an adaptive core engine is disclosed. The method comprises the steps of operating a front block compressor to increase pressure of a fluid to a first pressure ratio in a high-power mode operation; operating a rear block compressor coupled to the front block compressor such that the front block compressor and the rear block compressor operate at the same physical speed; closing a rear block stator vane located axially forward from the rear block compressor such that the flow of the fluid into the rear block compressor is substantially cut off; and keeping a blocker door opened such that substantially all of the fluid pressurized by the front block compressor flows through a bypass passage during the high-power mode operation.Type: GrantFiled: August 30, 2010Date of Patent: January 7, 2014Assignee: General Electric CompanyInventors: Rollin George Giffin, Brandon Flowers Powell, Mark Harrington, James Edward Johnson
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Patent number: 8125501Abstract: A method and system for applying addressing voltages to pixels of a display involves receiving input data. The input data includes an indication of an addressing voltage impulse to be applied to a pixel via an electrode. One or more voltage sources are selected, to provide the addressing voltage impulse. The one or more voltage sources each have a pre-selected voltage, The selected one or more voltage sources are electrically connected to an electrode to apply the addressing voltage impulse to the pixel. The invention also provides a method of driving an electro-optic display which uses an intermediate image of reduced bit depth, and a method of driving an electro-optic display which uses a limited number of differing drive voltages, with higher voltage pulses being used before lower voltage pulses.Type: GrantFiled: April 9, 2007Date of Patent: February 28, 2012Assignee: E Ink CorporationInventors: Karl R. Amundson, Theodore A. Sjodin, Chia-Chen Su, Demetrious Mark Harrington, Holly G. Gates
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Publication number: 20110285754Abstract: An electro-optic display uses first and second drive schemes differing from each other, for example a slow gray scale drive scheme and a fast monochrome drive scheme. The display is first driven to a pre-determined transition image using the first drive scheme, then driven to a second image, different from the transition image, using the second drive scheme. The display is thereafter driven to the same transition image using the second drive scheme; and from thence to a third image, different from both the transition image and the second image, using the first drive scheme.Type: ApplicationFiled: April 11, 2011Publication date: November 24, 2011Applicant: E INK CORPORATIONInventors: Demetrious Mark Harrington, Theodore A. Sjodin, Robert W. Zehner, Timothy J. O'Malley, Benjamin Harris Paletsky
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Publication number: 20110076158Abstract: A method of operating a compressor in an adaptive core engine is disclosed. The method comprises the steps of operating a front block compressor to increase pressure of a fluid to a first pressure ratio in a high-power mode operation; operating a rear block compressor coupled to the front block compressor such that the front block compressor and the rear block compressor operate at the same physical speed; closing a rear block stator vane located axially forward from the rear block compressor such that the flow of the fluid into the rear block compressor is substantially cut off; and keeping a blocker door opened such that substantially all of the fluid pressurized by the front block compressor flows through a bypass passage during the high-power mode operation.Type: ApplicationFiled: August 30, 2010Publication date: March 31, 2011Inventors: ROLLIN GEORGE GIFFIN, BRANDON FLOWERS POWELL, MARK HARRINGTON, JAMES EDWARD JOHNSON
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Publication number: 20090314567Abstract: An electric generator apparatus in the form of a self-contained module that can be attached to a vehicle and which is capable of generating electricity in response to movement of air through the module as the vehicle travels down the road. The electricity so generated may be used to power accessories on the vehicle or supplement the main engine in the vehicle. The module includes an inlet funnel or venturi, suitable rotating impellers or turbines responsive to the moving airstream therethrough, a suitable transmission or gearbox, a generator, and an electrical regulator or controller for delivering the electricity generated to a storage battery on the vehicle. Because of the relatively small size of each module, it can be placed anywhere on the vehicle and used in groupings or sets to increase the amount of electrical current produced.Type: ApplicationFiled: June 20, 2008Publication date: December 24, 2009Inventor: Mark Harrington
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Publication number: 20080046577Abstract: A system for distributing various content data to user terminals having at least one application for interpreting the content data and presenting it to a user, the system including a multiplicity of individual tokens, each token bearing an identity code, and having a user-removable obscuring means obscuring reading of the identity code; a content server connected to a communication network whereby it may communicate with the terminals, and including data storage means storing the content data, and for each of the identity codes an indication of an item of the content data with which that code is associated, and indicated on the or each token bearing that code, and arranged to, on receiving from a terminal an identity code of a token, retrieve from the data storage means the item of content data associated with that code and transmit it to that terminal.Type: ApplicationFiled: December 18, 2003Publication date: February 21, 2008Inventors: Kit Temple, Mark Harrington
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Patent number: 5883282Abstract: There is provided a 3-(3-aryloxyphenyl)-1-(substituted methyl)-s-triazine-2,4,6-oxo or thiotrione compound having the structural formula I ##STR1## Further provided are a composition and a method comprising that compound for the control of undesirable plant species.Type: GrantFiled: May 20, 1997Date of Patent: March 16, 1999Assignee: American Cyanamid CompanyInventors: Alvin Donald Crews, Jr., Philip Mark Harrington, Gary Mitchell Karp, Simon David Gill, Petra Dieterich