Patents by Inventor Christopher Fjellstad

Christopher Fjellstad 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: 8902353
    Abstract: An imaging module for electro-optically imaging a target, includes an energizable illuminating light source for illuminating the target with illumination light for return from the target, an energizable solid-state imager for capturing return light from the target, and a controller for energizing the imager during an exposure time period to capture the return light at a frame rate, for deenergizing the imager during a non-exposed time period, and for energizing the illuminating light source not only during the exposure time period, but also during the non-exposed time period, to produce a plurality of illumination light pulses at an illumination rate that enables the human eye to perceive the illumination light pulses as substantially continuous. The illumination rate of one or more of the illumination light pulses produced during the non-exposed time period is substantially independent and decoupled from the frame rate.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: December 2, 2014
    Assignee: Symbol Technologies, Inc.
    Inventors: Christopher Fjellstad, Christopher Warren Brock, Thomas Lackemann, Robert Pang
  • Publication number: 20120287332
    Abstract: An imaging module for electro-optically imaging a target, includes an energizable illuminating light source for illuminating the target with illumination light for return from the target, an energizable solid-state imager for capturing return light from the target, and a controller for energizing the imager during an exposure time period to capture the return light at a frame rate, for deenergizing the imager during a non-exposed time period, and for energizing the illuminating light source not only during the exposure time period, but also during the non-exposed time period, to produce a plurality of illumination light pulses at an illumination rate that enables the human eye to perceive the illumination light pulses as substantially continuous. The illumination rate of one or more of the illumination light pulses produced during the non-exposed time period is substantially independent and decoupled from the frame rate.
    Type: Application
    Filed: May 12, 2011
    Publication date: November 15, 2012
    Applicant: Symbol Technologies, Inc.
    Inventors: Christopher FJELLSTAD, Christopher Warren BROCK, Thomas LACKEMANN, Robert PANG
  • Patent number: 8028909
    Abstract: An imaging system with in-field image quality testing and reporting features, includes a housing, and a solid-state imager having an array of image sensors supported by the housing for capturing return light from a target located in a range of working distances from the housing in an image capture mode of operation, and for capturing return light from a test pattern positioned at a predetermined position in the range of working distances in a test mode of operation different from the image capture mode. An electrical signal indicative of the captured return light is generated in each mode. A memory is supported by the housing for storing a test program for testing image quality.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: October 4, 2011
    Assignee: Symbol Technologies, Inc.
    Inventors: Christopher Warren Brock, Jonathan Chin, Christopher Fjellstad, David P. Goren, Patrick Mauro, David Tsi-Shi, Michael Steele
  • Publication number: 20100213256
    Abstract: An imaging reader for, and a method of, processing a plurality of data, such as one or more symbols having the same or different symbologies, a receipt acknowledgment, and an alphanumeric address arranged at spaced-apart locations on a target, such as at parcel delivery label, employ a solid-state imager having an array of image sensors for capturing return light from the data on the target over a field of view, an actuator for actuating the images: to capture the return light from the data on the target in a single actuation, and a controller automatically configured for detecting all the data and the spaced-apart locations at which the data is arranged over the field of view, and for processing the return light captured by the imager from all the data only when all the data is of a predetermined type and is at predetermined locations on the target, in response to the single actuation.
    Type: Application
    Filed: February 24, 2009
    Publication date: August 26, 2010
    Inventors: Christopher Fjellstad, Patrick Mauro, Yu Sun
  • Publication number: 20100127078
    Abstract: An imaging system with in-field image quality testing and reporting features, includes a housing, and a solid-state imager having an array of image sensors supported by the housing for capturing return light from a target located in a range of working distances from the housing in an image capture mode of operation, and for capturing return light from a test pattern positioned at a predetermined position in the range of working distances in a test mode of operation different from the image capture mode. An electrical signal indicative of the captured return light is generated in each mode. A memory is supported by the housing for storing a test program for testing image quality.
    Type: Application
    Filed: November 26, 2008
    Publication date: May 27, 2010
    Inventors: Christopher Warren Brock, Jonathan Chin, Christopher Fjellstad, David P. Goren, Patrick Mauro, David Tsi-Shi, Michael Steele
  • Publication number: 20060239448
    Abstract: Update data is uploaded in the field to data capture systems, such as electro-optical readers, RFID readers, and imagers, either before, after, or during data capture.
    Type: Application
    Filed: March 31, 2005
    Publication date: October 26, 2006
    Inventors: Robert Pang, Thomas Bianculli, Robert May, Christopher Fjellstad