Patents by Inventor Ian Clarke

Ian Clarke 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).

  • Publication number: 20060043189
    Abstract: A method of determining the vertices of a character in a two-dimensional barcode symbol image includes tracing a contour around a character. The contour is examined and pixels therealong believed to be vertices of the character are determined. The relative positions of the determined pixels are compared to determine if they satisfy a threshold. If the relative positions of the determined pixels satisfy the threshold, the determined pixels are designated as the vertices of the character. If the relative positions of the determined pixels satisfy the threshold, the determined pixels are designated as the vertices of the character. If the relative positions of the determined pixels do not satisfy the threshold, new pixels along the contour are selected using geometric relationships between the determined pixels to replace determined pixels that are not vertices of the character.
    Type: Application
    Filed: August 31, 2004
    Publication date: March 2, 2006
    Inventors: Sachin Agrawal, Derek Kwok, Mohanaraj Thiyagarajah, Ian Clarke
  • Publication number: 20060045322
    Abstract: A system and method of recognizing characters in a captured image, includes selecting a portion of the image encompassing a string of characters in the captured image to be recognized. The selected portion is examined to identify segments that potentially include the characters of the string. During the examining multiple tests on pixels in the selected portion are performed. The identified segments are then examined to recognize the string of characters.
    Type: Application
    Filed: August 26, 2004
    Publication date: March 2, 2006
    Inventors: Ian Clarke, Hui Zhou, Jeffrey Achong
  • Publication number: 20060034531
    Abstract: The technique of the invention converts an object RGB image into an image in a YIQ color space, calculates a luminance variation at each target pixel from Y channel values of the target pixel and an adjacent pixel adjoining to the target pixel, and computes a smoothness degree of luminance variation at the target pixel as summation of absolute values of differences between luminance variations at the target pixel and adjacent pixels. A block noise evaluation value B is obtained as a ratio of an average smoothness degree ave(psx), ave(psy) of luminance variation for boundary pixels located on each block boundary to an average smoothness degree ave(nsx), ave(nsy) of luminance variation for inner pixels not located on the block boundary. The block noise evaluation value B closer to 1 gives an evaluation result of a lower level of block noise, whereas the block noise evaluation value B closer to 10 gives an evaluation result of a higher level of block noise.
    Type: Application
    Filed: May 10, 2005
    Publication date: February 16, 2006
    Inventors: Eunice Poon, Megumi Kanda, Ian Clarke
  • Publication number: 20060015084
    Abstract: The present invention relates to an apparatus for controlled rate dispensing of a liquid contained in a flexible bag, said apparatus including a chamber adapted to contain the flexible bag containing the liquid, an outlet from the chamber adapted to receive an outlet conduit communicating with the interior of the flexible bag, a source of gas arranged to apply pressure to at least part of the exterior walls of the flexible bag, and a pressure regulator arranged to control the pressure applied to said exterior walls, whereby pressure applied to said exterior walls causes liquid to be dispensed from the flexible bad through the outlet conduit at a controlled rate. A method of delivering liquid at a controlled rate using the apparatus of the present invention is also described.
    Type: Application
    Filed: November 5, 2002
    Publication date: January 19, 2006
    Inventors: Ian Clarke, Kenneth Logan, Paul Dastoor
  • Publication number: 20050244081
    Abstract: A method of generating a high-resolution image from a set of source low-resolution images includes estimating a high-resolution image based on the set of source low-resolution images. The estimated high-resolution image is then transformed into a set of estimated low-resolution images. The set of source low-resolution images is compared with the set of estimated low-resolution images to generate a set of low-resolution errors. The set of low-resolution errors is transfomed into a set of high-resolution errors. A high-resolution error image based on the set of high-resolution errors is generated. The high-resolution error image is combined with the estimated high resolution image to yield an updated estimated high-resolution. The above steps are repeated until the updated estimated high-resolution image is of a desired quality.
    Type: Application
    Filed: April 28, 2004
    Publication date: November 3, 2005
    Inventors: Hui Zhou, Graham Sellers, Ian Clarke
  • Publication number: 20050063608
    Abstract: A system and method of creating a panorama image from a series of source images includes registering adjoining pairs of images in the series based on common features within the adjoining pairs of images. A transform between each adjoining pair of images is estimated using the common features. Each image is projected onto a designated image in the series using the estimated transforms associated with the image and with images between the image in question and the designated image. Overlapping portions of the projected images are blended to form the panorama image.
    Type: Application
    Filed: September 24, 2003
    Publication date: March 24, 2005
    Inventors: Ian Clarke, Graham Sellers, Zain Yusuf
  • Publication number: 20050057543
    Abstract: A stage lighting system with a digital and analog part. The digital part is used to form the image, which can be, for example, a full brightness image. The analog part is used to dim the image, and to carry out failsafe operation. If an error occurs in the digital part, then the analog part prevents the image from being shown.
    Type: Application
    Filed: August 5, 2004
    Publication date: March 17, 2005
    Inventors: Mark Hunt, Ian Clarke
  • Patent number: 6801353
    Abstract: Techniques for use in a digital mirror device based luminaire. The techniques include using a filter as a gobo for definition.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: October 5, 2004
    Assignee: Production Resource Group Inc.
    Inventors: Mark A. Hunt, William E. Hewlett, Ian Clarke
  • Patent number: 6791709
    Abstract: To enable a user to accurately grasp on a print preview screen a detailed appearance to be obtained when an image is printed. A real display button provided on the print preview screen is clicked, to thereby designate a real display area. The image of the designated area is displayed as a real image at a print resolution such that one pixel of a display corresponds to one pixel of a print image.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: September 14, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Kazuo Nakamura, Ian Clarke
  • Publication number: 20040160198
    Abstract: A lighting system operating using a digital mirror as its operative device. The digital mirror is used to shape the light which is a passed through advanced optical devices in order to produce an output.
    Type: Application
    Filed: February 9, 2004
    Publication date: August 19, 2004
    Applicant: Light and Sound Design, Ltd. a England corporation
    Inventors: William Hewlett, Ian Clarke, Nigel Evans, Richard Parker, Mark A. Hunt, Michael Hughes
  • Patent number: 6736528
    Abstract: A lighting system operating using a digital mirror as its operative device. The digital mirror is used to shape the light which is a passed through advanced optical devices in order to produce an output.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: May 18, 2004
    Assignee: Light and Sound Design, Ltd.
    Inventors: William Hewlett, Ian Clarke, Nigel Evans, Richard Parker, Mark A. Hunt, Michael Hughes
  • Patent number: 6705887
    Abstract: An electrical adapter includes a plug, a socket and an extension lead connecting the socket to the plug. The socket is disposed in a body around which the lead is windable such that so long as the lead is at least partially wound, insertion is prevented of a pin of a connector in a socket hole to prevent unwanted electrical connection to the connector.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: March 16, 2004
    Inventor: Ian Clarke Fussell
  • Publication number: 20040046514
    Abstract: A lighting system with a digital micromirror device which forms a digital godo system that is controllable on a pixel level. The device includes a number of sensitive electronic elements. The device is controlled by two different controllers: a digital signal processor which is effectively the number crunching portion, and a controller, which controls the functions of the light. The controller also logs errors into a registery, such as a non-volatile memory. A field programmable gate array is used for a number of purposes, including to form the ports. One of those ports is a tech port, which is used to detect status of the light such as faults.
    Type: Application
    Filed: September 8, 2003
    Publication date: March 11, 2004
    Applicant: Light and Sound Design, Ltd., a British corporation
    Inventors: Michael Hughes, William Hewlett, Ian Clarke
  • Patent number: 6622053
    Abstract: A lighting system operating using a digital mirror as its operative device. The digital mirror is used to shape the light which is a passed through advanced optical devices in order to produce an output.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: September 16, 2003
    Assignee: Light and Sound Design Ltd.
    Inventors: William Hewlett, Ian Clarke, Nigel Evans, Richard Parker, Mark A. Hunt, Michael Hughes
  • Patent number: 6617792
    Abstract: A lighting system with a digital micromirror device which forms a digital gobo system that is controllable on a pixel level. The device includes a number of sensitive electronic elements. The device is controlled by two different controllers: a digital signal processor which is effectively the number crunching portion, and a controller, which controls the functions of the light. The controller also logs errors into a registry, such as a non-volatile memory. A field programmable gate array is used for a number of purposes, including to form the ports. One of those ports is used to detect status of the light such as faults.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: September 9, 2003
    Assignee: Light and Sound Design Ltd.
    Inventors: Michael Hughes, William Hewlett, Ian Clarke
  • Patent number: 6549326
    Abstract: Techniques for use in a digital mirror device based luminaire. The techniques include using a filter as a gobo for definition.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: April 15, 2003
    Assignee: Light and Sound Design Ltd.
    Inventors: Mark A. Hunt, William E. Hewlett, Ian Clarke
  • Patent number: 6515435
    Abstract: A lighting system with a digital micromirror device which forms a digital gobo system that is controllable on a pixel level. The device includes a number of sensitive electronic elements. The device is controlled by two different controllers: a digital signal processor which is effectively the number crunching portion, and a controller, which controls the functions of the light. The controller also logs errors into a registry, such as a non-volatile memory. A field programmable gate array is used for a number of purposes, including to form the ports. One of those ports is a tech port, which is used to detect status of the light such as faults.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: February 4, 2003
    Assignee: Light and Sound Design, Ltd.
    Inventors: Michael Hughes, William Hewlett, Ian Clarke
  • Publication number: 20020141037
    Abstract: Techniques for use in a digital mirror device based luminaire. The techniques include using a filter as a gobo for definition.
    Type: Application
    Filed: September 7, 2001
    Publication date: October 3, 2002
    Inventors: Mark A. Hunt, William E. Hewlett, Ian Clarke
  • Publication number: 20020109905
    Abstract: Techniques for use in a digital mirror device based luminaire. The techniques include using a filter as a gobo for definition.
    Type: Application
    Filed: September 7, 2001
    Publication date: August 15, 2002
    Inventors: Mark A. Hunt, William E. Hewlett, Ian Clarke
  • Publication number: 20020101199
    Abstract: A lighting system with a digital micromirror device which forms a digital gobo system that is controllable on a pixel level. The device includes a number of sensitive electronic elements. The device is controlled by two different controllers: a digital signal processor which is effectively the number crunching portion, and a controller, which controls the functions of the light. The controller also logs errors into a registry, such as a non-volatile memory. A field programmable gate array is used for a number of purposes, including to form the ports. One of those ports is a tech port, which is used to detect status of the light such as faults.
    Type: Application
    Filed: October 24, 2001
    Publication date: August 1, 2002
    Applicant: Light and Sound Design, Ltd.,
    Inventors: Michael Hughes, William Hewlett, Ian Clarke