Patents by Inventor Colin Shiva RAMRATTAN

Colin Shiva RAMRATTAN 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: 9977944
    Abstract: A photography subsystem is configured to be operated in fingerprint scanning mode and a normal mode. An autofocus module may be initialized to control a lens with an initial focal length set according to received instructions indicating one of the modes of operation. An image signal processor associated with the photography subsystem may process images received from the photography subsystem and, if necessary, process the images to form a candidate digital fingerprint for use in an authentication process.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: May 22, 2018
    Assignee: BlackBerry Limited
    Inventors: Colin Shiva Ramrattan, Robert James Lowles, Graham Charles Townsend
  • Publication number: 20160364594
    Abstract: A photography subsystem is configured to be operated in fingerprint scanning mode and a normal mode. An autofocus module may be initialized to control a lens with an initial focal length set according to received instructions indicating one of the modes of operation. An image signal processor associated with the photography subsystem may process images received from the photography subsystem and, if necessary, process the images to form a candidate digital fingerprint for use in an authentication process.
    Type: Application
    Filed: August 24, 2016
    Publication date: December 15, 2016
    Inventors: Colin Shiva RAMRATTAN, Robert James LOWLES, Graham Charles TOWNSEND
  • Patent number: 9471826
    Abstract: A photography subsystem is configured to be operated in fingerprint scanning mode and a normal mode. An autofocus module may be initialized to control a lens with an initial focal length set according to received instructions indicating one of the modes of operation. An image signal processor associated with the photography subsystem may process images received from the photography subsystem and, if necessary, process the images to form a candidate digital fingerprint for use in an authentication process.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: October 18, 2016
    Assignee: BlackBerry Limited
    Inventors: Colin Shiva Ramrattan, Robert James Lowles, Graham Charles Townsend
  • Patent number: 9042085
    Abstract: In a broad aspect, embodiments described herein are generally directed to an electronic device comprising: a housing; a component mounted within the housing; a component cover in fixed relation to the housing; wherein the component cover is configurable between at least a first state and a second state; and wherein light transmissivity through the component cover is greater when in the second state than when in the first state. In some implementations, in the first state the component cover is substantially opaque, or in the second state the component cover is substantially transparent.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: May 26, 2015
    Assignee: BLACKBERRY LIMITED
    Inventor: Colin Shiva Ramrattan
  • Patent number: 8982063
    Abstract: A navigation module for a handheld communication device having a navigation pad, a chrome-like ring surrounding the navigation pad, an illumination ring surrounding the navigation pad, and at least one light source optically coupled to the at least the illumination ring. The illumination ring can be interposed between the chrome-like ring and the navigation pad. The chrome-like ring can be interposed between the illumination ring and the navigation pad. The light source can be a light emitting diode.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: March 17, 2015
    Assignee: BlackBerry Limited
    Inventors: Colin Shiva Ramrattan, Robert James Lowles
  • Patent number: 8937598
    Abstract: A navigation module for a handheld communication device having a navigation pad, a chrome-like ring surrounding the navigation pad, an illumination ring surrounding the navigation pad, and at least one light source is optically coupled to at least the illumination ring. The illumination ring can be interposed between the chrome-like ring and the navigation pad. The chrome-like ring can be interposed between the illumination ring and the navigation pad. The light source can be a light emitting diode.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: January 20, 2015
    Assignee: Blackberry Limited
    Inventors: Robert James Lowles, Colin Shiva Ramrattan
  • Patent number: 8792683
    Abstract: An optical navigation subsystem may be used when obtaining a candidate fingerprint for a mobile communication device (e.g., for authentication purposes). To accommodate such use of the optical navigation subsystem, the optical navigation subsystem may be adapted to automatically adjust a processed image sensor window from a first set of window dimensions (e.g., suitable for optical navigation) to a second set of window dimensions (e.g., suitable for fingerprint capture). Alternatively, a single, static set of window dimension may be employed in conjunction with stitching algorithms, or other methods suitable for forming candidate fingerprint images by combining a plurality of images obtained using the static set of window dimension.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: July 29, 2014
    Assignee: BlackBerry Limited
    Inventors: Colin Shiva Ramrattan, Hassan Hosseinpor, Graham Charles Townsend, Robert James Lowles, Rayhan Behin, Gregory William Jacobs
  • Patent number: 8730657
    Abstract: A mobile computing device includes a flexible display, a rigid-flex printed circuit board (PCB) arrangement, an electrically conductive memory fabric, and a controller. The rigid-flex PCB arrangement is connected to the flexible display, and has a honeycomb configuration. The electrically conductive memory fabric is connected to the flexible display and the rigid-flex PCB arrangement. The controller is configured to, by selectively controlling supply of electrical current to the electrically conductive memory fabric, control whether the electrically conductive memory fabric (i) straightens and resists flexing of the flexible display and the rigid-flex PCB arrangement or (ii) is relaxed and allows flexing of the flexible display and the rigid-flex PCB arrangement.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: May 20, 2014
    Assignee: BlackBerry Limited
    Inventors: Colin Shiva Ramrattan, Mohamad El-Hage
  • Publication number: 20120327048
    Abstract: A mobile computing device includes a flexible display, a rigid-flex printed circuit board (PCB) arrangement, an electrically conductive memory fabric, and a controller. The rigid-flex PCB arrangement is connected to the flexible display, and has a honeycomb configuration. The electrically conductive memory fabric is connected to the flexible display and the rigid-flex PCB arrangement. The controller is configured to, by selectively controlling supply of electrical current to the electrically conductive memory fabric, control whether the electrically conductive memory fabric (i) straightens and resists flexing of the flexible display and the rigid-flex PCB arrangement or (ii) is relaxed and allows flexing of the flexible display and the rigid-flex PCB arrangement.
    Type: Application
    Filed: June 24, 2011
    Publication date: December 27, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Colin Shiva Ramrattan, Mohamad El-Hage
  • Publication number: 20120194440
    Abstract: A method includes receiving a first input comprising at least two touches that overlap in time on a touch-sensitive display, storing data associated with the input including data associated with the at least two touches to control access to functions at the portable electronic device, detecting a second input on the touch-sensitive display to provide access to the functions, and providing access to the functions based on a comparison of data associated with the second input to the stored data.
    Type: Application
    Filed: January 31, 2011
    Publication date: August 2, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Colin Shiva Ramrattan, Wolfgang Michael Theimer
  • Publication number: 20120133583
    Abstract: A navigation module for a handheld communication device having a navigation pad, a chrome-like ring surrounding the navigation pad, an illumination ring surrounding the navigation pad, and at least one light source optically coupled to the at least the illumination ring. The illumination ring can be interposed between the chrome-like ring and the navigation pad. The chrome-like ring can be interposed between the illumination ring and the navigation pad. The light source can be a light emitting diode.
    Type: Application
    Filed: August 23, 2011
    Publication date: May 31, 2012
    Inventors: Colin Shiva Ramrattan, Robert James Lowles
  • Publication number: 20110300830
    Abstract: An optical navigation subsystem may be used when obtaining a candidate fingerprint for a mobile communication device (e.g., for authentication purposes). To accommodate such use of the optical navigation subsystem, the optical navigation subsystem may be adapted to automatically adjust a processed image sensor window from a first set of window dimensions (e.g., suitable for optical navigation) to a second set of window dimensions (e.g., suitable for fingerprint capture). Alternatively, a single, static set of window dimension may be employed in conjunction with stitching algorithms, or other methods suitable for forming candidate fingerprint images by combining a plurality of images obtained using the static set of window dimension.
    Type: Application
    Filed: June 4, 2010
    Publication date: December 8, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Colin Shiva RAMRATTAN, Hassan HOSSEINPOR, Graham Charles TOWNSEND, Robert James LOWLES, Rayhan BEHIN, Gregory William JACOBS
  • Publication number: 20110286639
    Abstract: A photography subsystem is configured to be operated in fingerprint scanning mode and a normal mode. An autofocus module may be initialized to control a lens with an initial focal length set according to received instructions indicating one of the modes of operation. An image signal processor associated with the photography subsystem may process images received from the photography subsystem and, if necessary, process the images to form a candidate digital fingerprint for use in an authentication process.
    Type: Application
    Filed: May 21, 2010
    Publication date: November 24, 2011
    Inventors: Colin Shiva Ramrattan, Robert James Lowles, Graham Charles Townsend
  • Publication number: 20110205154
    Abstract: A navigation module for a handheld communication device having a navigation pad, a chrome-like ring surrounding the navigation pad, an illumination ring surrounding the navigation pad, and at least one light source is optically coupled to at least the illumination ring. The illumination ring can be interposed between the chrome-like ring and the navigation pad. The chrome-like ring can be interposed between the illumination ring and the navigation pad. The light source can be a light emitting diode.
    Type: Application
    Filed: February 25, 2010
    Publication date: August 25, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Robert James Lowles, Colin Shiva Ramrattan
  • Publication number: 20110122554
    Abstract: In a broad aspect, embodiments described herein are generally directed to an electronic device comprising: a housing; a component mounted within the housing; a component cover in fixed relation to the housing; wherein the component cover is configurable between at least a first state and a second state; and wherein light transmissivity through the component cover is greater when in the second state than when in the first state. In some implementations, in the first state the component cover is substantially opaque, or in the second state the component cover is substantially transparent.
    Type: Application
    Filed: November 25, 2009
    Publication date: May 26, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventor: Colin Shiva RAMRATTAN