Patents by Inventor Robert Gerardus Hendrik Boom

Robert Gerardus Hendrik Boom 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).

  • Patent number: 8884855
    Abstract: A display apparatus includes a display device and a display driving system having a data input connected to a distributor for providing signals for driving image regions. Each image region has an active display state in which it is driven with an active voltage signal including a first signal level which sets the image region to the active display state and a second signal level applied for a shorter duration than the first signal level. Operation includes (1) applying the first signal level to an image region in response to receiving data on the data input indicating that the image region is to be set to the active display state, (2) applying the second signal level to the image region after said first signal level has been applied, and (3) reapplying the first signal level before receipt of further data for said image region on the data input.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: November 11, 2014
    Assignee: Amazon Technologies, Inc.
    Inventors: Robert Gerardus Hendrik Boom, Roy Van Dijk, Henricus Petronella Maria Derckx
  • Patent number: 8791934
    Abstract: The invention relates to a method of driving of an electro-optic display having image regions. Each image region has: a first driving state in which a zero voltage, substantially equal to zero, is applied across the image region; and a second driving state in which a non-zero voltage, substantially different from the zero voltage, is applied across the image region. The method of the invention comprises applying: a common voltage signal to a plurality of the image regions; and an actuating voltage signal to one or more selected ones of the plurality of image regions. The method comprises varying both the common voltage signal and the actuating voltage signal when switching the selected regions between the first driving state and the second driving state. The invention further relates to electro-optic display apparatus having image regions and comprising driving circuitry adapted to perform the method of the invention.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: July 29, 2014
    Assignee: Liquavista B.V.
    Inventors: Robert Gerardus Hendrik Boom, Roy Van Dijk, Henricus Petronella Maria Derckx
  • Patent number: 8610662
    Abstract: The invention relates to a method of driving an electrowetting display which includes a plurality of electrowetting elements, the display comprising at least one first fluid and a second fluid immiscible with each other, each of the electrowetting elements comprising at least one surface area. In a first, relatively low voltage, driving state of an electrowetting element the second fluid tends to cover the at least one surface area, and in a second, relatively high voltage, driving state of an electrowetting element the first fluid tends to cover the at least one surface area.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: December 17, 2013
    Assignee: Liquavista B.V.
    Inventors: Robert Gerardus Hendrik Boom, Roy Van Dijk, Henricus Petronella Maria Derckx
  • Publication number: 20130328856
    Abstract: A display apparatus includes a display device and a display driving system having a data input connected to a distributor for providing signals for driving image regions. Each image region has an active display state in which it is driven with an active voltage signal including a first signal level which sets the image region to the active display state and a second signal level applied for a shorter duration than the first signal level. Operation includes (1) applying the first signal level to an image region in response to receiving data on the data input indicating that the image region is to be set to the active display state, (2) applying the second signal level to the image region after said first signal level has been applied, and (3) reapplying the first signal level before receipt of further data for said image region on the data input.
    Type: Application
    Filed: August 15, 2013
    Publication date: December 12, 2013
    Applicant: Liquavista B.V.
    Inventors: Robert Gerardus Hendrik Boom, Roy Van Dijk, Henricus Petronella Maria Derckx
  • Patent number: 8542172
    Abstract: A method of operating an electro-optic display apparatus, wherein the display apparatus includes a display device having image regions and a display driving system having a data input for selecting image regions. The data input is connected to the input of a distributor for providing signals for driving the image regions. Each image region has an active display state in which the image region is driven with an active voltage signal. The active voltage signal includes a first signal level which sets an image region to the active display state and a second signal level different from said first signal level and which is applied for a shorter duration than said first signal level.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: September 24, 2013
    Assignee: Liquavista B.V.
    Inventors: Robert Gerardus Hendrik Boom, Roy Van Dijk, Henricus Petronella Maria Derckx
  • Publication number: 20100079434
    Abstract: The invention relates to a method of driving of an electro-optic display having image regions. Each image region has: a first driving state in which a zero voltage, substantially equal to zero, is applied across the image region; and a second driving state in which a non-zero voltage, substantially different from the zero voltage, is applied across the image region. The method of the invention comprises applying: a common voltage signal to a plurality of the image regions; and an actuating voltage signal to one or more selected ones of the plurality of image regions. The method comprises varying both the common voltage signal and the actuating voltage signal when switching the selected regions between the first driving state and the second driving state. The invention further relates to electro-optic display apparatus having image regions and comprising driving circuitry adapted to perform the method of the invention.
    Type: Application
    Filed: November 15, 2007
    Publication date: April 1, 2010
    Applicant: LIQUAVISTA B.V.
    Inventors: Robert Gerardus Hendrik Boom, Roy Van Dijk, Henricus Petronella Maria Derckx
  • Publication number: 20100053234
    Abstract: The invention relates to a method of driving an electrowetting display which includes a plurality of electrowetting elements, the display comprising at least one first fluid and a second fluid immiscible with each other, each of the electrowetting elements comprising at least one surface area. In a first, relatively low voltage, driving state of an electrowetting element the second fluid tends to cover the at least one surface area, and in a second, relatively high voltage, driving state of an electrowetting element the first fluid tends to cover the at least one surface area.
    Type: Application
    Filed: November 15, 2007
    Publication date: March 4, 2010
    Applicant: LIQUAVISTA B.V.
    Inventors: Robert Gerardus Hendrik Boom, Roy van Dijk, Henricus Petronella Maria Derckx
  • Publication number: 20100045649
    Abstract: A method of operating an electro-optic display apparatus, wherein the display apparatus includes a display device having image regions and a display driving system having a data input for selecting image regions. The data input is connected to the input of a distributor for providing signals for driving the image regions. Each image region has an active display state in which the image region is driven with an active voltage signal. The active voltage signal includes a first signal level which sets an image region to the active display state and a second signal level different from said first signal level and which is applied for a shorter duration than said first signal level.
    Type: Application
    Filed: November 15, 2007
    Publication date: February 25, 2010
    Inventors: Robert Gerardus Hendrik Boom, Roy Van Dijk, Henricus Petronella Maria Derckx