Patents by Inventor Joanna F. Au
Joanna F. Au 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: 11935496Abstract: A variety of methods for driving electro-optic displays so as to reduce visible artifacts are described. Such methods includes driving an electro-optic display having a plurality of display pixels and controlled by a display controller, the display controller associated with a host for providing operational instructions to the display controller, the method may include updating the display with a first image, updating the display with a second image subsequent to the first image, processing image data associated with the first image and the second image to identify display pixels with edge artifacts and generate image data associated with the identified pixels, storing the image data associated pixels with edge artifacts at a memory location, and initiating a waveform to clear the edge artifacts.Type: GrantFiled: May 26, 2023Date of Patent: March 19, 2024Assignee: E Ink CorporationInventors: Teck Ping Sim, Yuval Ben-Dov, Joanna F. Au, Kenneth R. Crounse
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Publication number: 20230386422Abstract: A variety of methods for driving electro-optic displays so as to reduce visible artifacts are described. Such methods includes driving an electro-optic display having a plurality of display pixels and controlled by a display controller, the display controller associated with a host for providing operational instructions to the display controller, the method may include updating the display with a first image, updating the display with a second image subsequent to the first image, processing image data associated with the first image and the second image to identify display pixels with edge artifacts and generate image data associated with the identified pixels, storing the image data associated pixels with edge artifacts at a memory location, and initiating a waveform to clear the edge artifacts.Type: ApplicationFiled: May 26, 2023Publication date: November 30, 2023Inventors: Teck Ping SIM, Yuval BEN-DOV, Joanna F. AU, Kenneth R. CROUNSE
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Patent number: 11721295Abstract: A variety of methods for driving electro-optic displays so as to reduce visible artifacts are described. Such methods includes driving an electro-optic display having a plurality of display pixels and controlled by a display controller, the display controller associated with a host for providing operational instructions to the display controller, the method may include updating the display with a first image, updating the display with a second image subsequent to the first image, processing image data associated with the first image and the second image to identify display pixels with edge artifacts and generate image data associated with the identified pixels, storing the image data associated pixels with edge artifacts at a memory location, and initiating a waveform to clear the edge artifacts.Type: GrantFiled: January 22, 2019Date of Patent: August 8, 2023Assignee: E Ink CorporationInventors: Teck Ping Sim, Yuval Ben-Dov, Joanna F. Au, Kenneth R. Crounse
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Patent number: 11656522Abstract: A temperature regulation system includes a laminate material that has a first light transmissive electrode layer, a rear electrode layer, and a bistable electrophoretic medium disposed between the first and second electrode layer. The electrophoretic medium includes two types of particles that have different charges and color. The amount of incident radiation (visible light, infrared, etc.) that is absorbed by the laminate can be modified by providing a voltage between the electrode layers.Type: GrantFiled: September 25, 2019Date of Patent: May 23, 2023Assignee: E Ink CorporationInventors: John L. Marshall, Richard J. Paolini, Jr., Jay William Anseth, Joanna F. Au
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Patent number: 11568827Abstract: A variety of methods for driving electro-optic displays so as to reduce visible artifacts are described. Such methods includes updating a display having a plurality of display pixels with a first image, identifying display pixels with edge artifacts after the first image update, and storing the identified display pixels information in a memory. In particular, the methods are effective for minimizing edge ghosting when a pixel of an active matrix electrophoretic display undergoes a white to white transition or a black to black transition during an update between first and second images.Type: GrantFiled: July 26, 2022Date of Patent: January 31, 2023Assignee: E Ink CorporationInventors: Teck Ping Sim, Yuval Ben-Dov, Joanna F. Au, Kenneth R. Crounse
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Publication number: 20220375418Abstract: A variety of methods for driving electro-optic displays so as to reduce visible artifacts are described. Such methods includes updating a display having a plurality of display pixels with a first image, identifying display pixels with edge artifacts after the first image update, and storing the identified display pixels information in a memory. In particular, the methods are effective for minimizing edge ghosting when a pixel of an active matrix electrophoretic display undergoes a white to white transition or a black to black transition during an update between first and second images.Type: ApplicationFiled: July 26, 2022Publication date: November 24, 2022Inventors: Teck Ping SIM, Yuval BEN-DOV, Joanna F. AU, Kenneth R. CROUNSE
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Patent number: 11423852Abstract: A variety of methods for driving electro-optic displays so as to reduce visible artifacts are described. Such methods includes updating a display having a plurality of display pixels with a first image, identifying display pixels with edge artifacts after the first image update, and storing the identified display pixels information in a memory.Type: GrantFiled: September 12, 2018Date of Patent: August 23, 2022Assignee: E Ink CorporationInventors: Teck Ping Sim, Yuval Ben-Dov, Joanna F. Au, Kenneth R. Crounse
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Patent number: 10909936Abstract: A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.Type: GrantFiled: January 8, 2016Date of Patent: February 2, 2021Assignee: E Ink CorporationInventors: Robert W. Zehner, Holly G. Gates, Karl Raymond Amundson, Joanna F. Au, Ara N. Knaian, Alexandros Cosmos Arango, Jonathan L. Zalesky
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Publication number: 20200103719Abstract: A temperature regulation system includes a laminate material that has a first light transmissive electrode layer, a rear electrode layer, and a bistable electrophoretic medium disposed between the first and second electrode layer. The electrophoretic medium includes two types of particles that have different charges and color. The amount of incident radiation (visible light, infrared, etc.) that is absorbed by the laminate can be modified by providing a voltage between the electrode layers.Type: ApplicationFiled: September 25, 2019Publication date: April 2, 2020Inventors: John L. MARSHALL, Richard J. PAOLINI, JR., Jay William ANSETH, Joanna F. AU
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Publication number: 20190172401Abstract: A variety of methods for driving electro-optic displays so as to reduce visible artifacts are described. Such methods includes driving an electro-optic display having a plurality of display pixels and controlled by a display controller, the display controller associated with a host for providing operational instructions to the display controller, the method may include updating the display with a first image, updating the display with a second image subsequent to the first image, processing image data associated with the first image and the second image to identify display pixels with edge artifacts and generate image data associated with the identified pixels, storing the image data associated pixels with edge artifacts at a memory location, and initiating a waveform to clear the edge artifacts.Type: ApplicationFiled: January 22, 2019Publication date: June 6, 2019Inventors: Teck Ping SIM, Yuval BEN-DOV, Joanna F. AU, Kenneth R. CROUNSE
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Publication number: 20190122617Abstract: A variety of methods for driving electro-optic displays so as to reduce visible artifacts are described. Such methods includes updating a display having a plurality of display pixels with a first image, identifying display pixels with edge artifacts after the first image update, and storing the identified display pixels information in a memory.Type: ApplicationFiled: September 12, 2018Publication date: April 25, 2019Inventors: Teck Ping SIM, Yuval BEN-DOV, Joanna F. AU, Kenneth R. CROUNSE
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Publication number: 20170052422Abstract: A backplane for use in an electro-optic display comprises a patterned metal foil having a plurality of apertures extending therethrough, coated on at least side with an insulating polymeric material and having a plurality of thin film electronic devices provided on the insulating polymeric material.Type: ApplicationFiled: November 4, 2016Publication date: February 23, 2017Inventors: Peter T. Kazlas, Joanna F. Au, Yu Chen, Nathan R. Kane
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Publication number: 20160372055Abstract: A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.Type: ApplicationFiled: September 2, 2016Publication date: December 22, 2016Inventors: Robert W. Zehner, Holly G. Gates, Karl Raymond Amundson, Joanna F. Au, Ara N. Knaian, Alexandros Cosmos Arango, Jonathan L. Zalesky
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Publication number: 20160125790Abstract: A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.Type: ApplicationFiled: January 8, 2016Publication date: May 5, 2016Inventors: Robert W. Zehner, Holly G. Gates, Karl Raymond Amundson, Joanna F. Au, Ara N. Knaian, Alexandros Cosmos Arango, Jonathan L. Zalesky
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Publication number: 20150262551Abstract: A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.Type: ApplicationFiled: May 30, 2015Publication date: September 17, 2015Inventors: Robert W. Zehner, Holly G. Gates, Karl Raymond Amundson, Joanna F. Au, Ara N. Knaian, Alexi C. Arango, Jonathan L. Zalesky
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Patent number: 8558785Abstract: A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.Type: GrantFiled: May 18, 2010Date of Patent: October 15, 2013Assignee: E Ink CorporationInventors: Robert W. Zehner, Holly G. Gates, Karl R. Amundson, Joanna F. Au, Ara N. Knaian, Alexi C. Arango, Jonathan L. Zalesky
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Patent number: 8174490Abstract: A pixel of an electrophoretic display is driven from one extreme optical state to a second optical state different from the one extreme optical state by applying to the pixel a first drive pulse of one polarity; and thereafter applying to the pixel a second drive pulse of the opposite polarity, the second drive pulse being effective to drive the pixel to the second optical state.Type: GrantFiled: August 28, 2007Date of Patent: May 8, 2012Assignee: E Ink CorporationInventors: Thomas H. Whitesides, Joanna F. Au, Karl R. Amundson, Robert W. Zehner, Ara N. Knaian, Benjamin Zion
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Publication number: 20110140744Abstract: A backplane for use in an electro-optic display comprises a patterned metal foil having a plurality of apertures extending therethrough, coated on at least side with an insulating polymeric material and having a plurality of thin film electronic devices provided on the insulating polymeric material.Type: ApplicationFiled: January 10, 2011Publication date: June 16, 2011Applicant: E INK CORPORATIONInventors: Peter T. Kazlas, Joanna F. Au, Yu Chen, Nathan R. Kane
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Patent number: 7893435Abstract: A backplane for use in an electro-optic display comprises a patterned metal foil having a plurality of apertures extending therethrough, coated on at least side with an insulating polymeric material and having a plurality of thin film electronic devices provided on the insulating polymeric material.Type: GrantFiled: November 25, 2003Date of Patent: February 22, 2011Assignee: E Ink CorporationInventors: Peter T. Kazlas, Joanna F. Au, Yu Chen, Nathan R. Kane, David John Cole
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Publication number: 20100220122Abstract: A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.Type: ApplicationFiled: May 18, 2010Publication date: September 2, 2010Applicant: E Ink CorporationInventors: Robert W. Zehner, Holly G. Gates, Karl R. Amundson, Joanna F. Au, Ara N. Knaian, Jonathan L. Zalesky, Alexi C. Arango