Patents by Inventor Jean Tu

Jean Tu 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: 20130119137
    Abstract: An apparatus and method for imaging a target, includes a housing having a presentation area, a solid-state imaging sensor having an imaging array of image sensors looking at a field of view that extends through the presentation area to the target, and an imaging lens assembly for capturing return light over the field of view from the target through the presentation area, and for projecting the captured return light onto the imaging array during imaging of the target. The assembly has a plurality of lenses, an aperture stop, and a holder for holding the lenses and the aperture stop in spaced relation along an optical axis. The aperture stop has a non-rotationally symmetrical aperture through which the optical axis extends. Alignment elements on the imaging lens assembly are used to align the non-rotationally symmetrical aperture with the imaging array.
    Type: Application
    Filed: November 14, 2011
    Publication date: May 16, 2013
    Applicant: SYMBOL TECHNOLOGIES, INC.
    Inventors: Rong LIU, David TSI-SHI, Jean TU, Michael VEKSLAND
  • Patent number: 8430314
    Abstract: An apparatus and method for imaging a target, includes a housing having a presentation area, a solid-state imaging sensor having an imaging array of image sensors looking at a field of view that extends through the presentation area to the target, and an imaging lens assembly for capturing return light over the field of view from the target through the presentation area, and for projecting the captured return light onto the imaging array during imaging of the target. The assembly has a plurality of lenses, an aperture stop, and a holder for holding the lenses and the aperture stop in spaced relation along an optical axis. The aperture stop has a non-rotationally symmetrical aperture through which the optical axis extends. Alignment elements on the imaging lens assembly are used to align the non-rotationally symmetrical aperture with the imaging array.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: April 30, 2013
    Assignee: Symbol Technologies, Inc.
    Inventors: Rong Liu, David Tsi-Shi, Jean Tu, Michael Veksland
  • Publication number: 20080197199
    Abstract: A power pack with human interface devices that includes a power pack housing, which is detachably interfaced to a portable device. The power pack includes a power source internal to the housing for providing power, a light source internal to the housing for producing a light signal associated with a status, which light signal is viewable external to the housing, and an audio source internal to the housing for producing an audio signal associated with the status. The power pack interfaces electrically to the portable device to provide power thereto, and receive therefrom control signals associated with the status, which control signals activate at least one of the light source and audio source according to the status.
    Type: Application
    Filed: February 15, 2008
    Publication date: August 21, 2008
    Applicant: SYMBOL TECHNOLOGIES, INC.
    Inventors: Jeff Terlizzi, Alex Breytman, Jorg Schlieffers, Kevin Cordes, Jean Tu, Jay Paul White, Chin-Hung Jwo, David Tsi Shi
  • Patent number: 7331526
    Abstract: A power pack with human interface devices that includes a power pack housing, which is detachably interfaced to a portable device. The power pack includes a power source internal to the housing for providing power, a light source internal to the housing for producing a light signal associated with a status, which light signal is viewable external to the housing, and an audio source internal to the housing for producing an audio signal associated with the status. The power pack interfaces electrically to the portable device to provide power thereto, and receive therefrom control signals associated with the status, which control signals activate at least one of the light source and audio source according to the status.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: February 19, 2008
    Assignee: Symbol Technologies, Inc.
    Inventors: Jeff Terlizzi, Alex Breytman, Jorg Schlieffers, Kevin Cordes, Jean Tu, Jay Paul White, Chin-Hung Jwo, David Tsi Shi
  • Publication number: 20070057069
    Abstract: A power pack with human interface devices that includes a power pack housing, which is detachably interfaced to a portable device. The power pack includes a power source internal to the housing for providing power, a light source internal to the housing for producing a light signal associated with a status, which light signal is viewable external to the housing, and an audio source internal to the housing for producing an audio signal associated with the status. The power pack interfaces electrically to the portable device to provide power thereto, and receive therefrom control signals associated with the status, which control signals activate at least one of the light source and audio source according to the status.
    Type: Application
    Filed: November 6, 2006
    Publication date: March 15, 2007
    Applicant: SYMBOL TECHNOLOGIES, INC.
    Inventors: Jeff Terlizzi, Alex Breytman, Jorg Schlieffers, Kevin Cordes, Jean Tu, Jay White, Chin-Hung Jwo, David Shi
  • Patent number: 7140546
    Abstract: A power pack with human interface devices that includes a power pack housing, which is detachably interfaced to a portable device. The power pack includes a power source internal to the housing for providing power, a light source internal to the housing for producing a light signal associated with a status, which light signal is viewable external to the housing, and an audio source internal to the housing for producing an audio signal associated with the status. The power pack interfaces electrically to the portable device to provide power thereto, and receive therefrom control signals associated with the status, which control signals activate at least one of the light source and audio source according to the status.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: November 28, 2006
    Assignee: Symbol Technologies, Inc.
    Inventors: Jeff Terlizzi, Alex Breytman, Jorg Schlieffers, Kevin Cordes, Jean Tu, Jay Paul White, Chin-Hung Jwo, David Tsi Shi
  • Patent number: 6321990
    Abstract: Various optical components of an electro-optical system for reading coded indicia are mounted on a chassis snap-mounted in a housing. The optical components are supported by the chassis at an elevation relative to a printed circuit board snap-mounted to the chassis. The optical components are automatically adjusted in a test fixture.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: November 27, 2001
    Assignee: Symbol Technologies, Inc.
    Inventors: Joseph Giordano, Jean Tu, Yuri Gofman, Daniela Stratienco, Timothy Kehoe, Paul Severino, Howard Shepard, Edward Barkan, David Harder, Joel Kahn, Robert Sanders, John Barile, Chang-Hong Chen, Steven Chew, Robert Doran, Robert Grabowski
  • Patent number: 6216951
    Abstract: Antique identifying electro-optical marker is associated with a base unit having a receiver. During a set-up mode of operation, an electro-optical reader reads the marker. During subsequent reading of indicia, the reader generates electrical signals which are transmitted to the receiver of the uniquely identified base unit.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: April 17, 2001
    Assignee: Symbol Technologies, Inc.
    Inventors: Philip Swift, Ian Jenkins, Edward Barkan, Daniel Curry, Ellen Oppenheim, Michael Ryder, Robert Wild, John Carricato, Jean Tu, Joseph Giordano
  • Patent number: 6095421
    Abstract: A laser focus control system including a laser for generating a scanning light beam to visually illuminate an information encoded bar code symbol. A segmented photodiode detects light reflected from the symbol and generates a plurality of electrical signals, each signal based on the light energy incident on the segments of the photodiode, thereby representing the spatial intensity variations of the symbol. A scanning zone processor then filters, averages, and compares the electrical signals to a noise threshold, and assigns logic levels based on the comparisons. Thereafter, a scanning zone detector determines the corresponding scanning zone distance based on the combination of logic levels and determines whether the system has stabilized within the zone distance. The scanning zone distance is then furnished to the laser focus controller in order to adjust the laser focus of the scanning device. The system is incorporated in a shock-resistant hand-held device.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: August 1, 2000
    Assignee: Symbol Technologies, Inc.
    Inventors: Edward Barkan, Raj Bridgelall, Jean Tu, Yuri Gofman, Joseph Giordano, Edmond L. Fratianni
  • Patent number: 6053413
    Abstract: An optical scanner having an adjustable cradle or stand for allowing the user either to operate the scanner in the hand or while positioned in the cradle. In one embodiment, suitable for use with wireless-based hand-held scanners, a particular scanner may be associated with an individual cradle by scanning a bar code symbol associated with that cradle and storing and/or processing the ID data contained in the symbol. A simple mechanical arrangement is provided for switching the scanner either manually or automatically between one-dimensional and two-dimensional scanning, with corresponding changes in the cross-sectional shape and/or focus of the scanning laser beam.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: April 25, 2000
    Assignee: Symbol Technologies, Inc.
    Inventors: Philip Swift, Ian Jenkins, Edward Barkan, Daniel Curry, Ellen Oppenheim, Michael Ryder, Robert Wild, John Carricato, Jean Tu, Joseph Giordano
  • Patent number: 5850078
    Abstract: Various optical components of an electro-optical system for reading coded indicia are mounted on a chassis snap-mounted in a housing. The optical components are supported by the chassis at an elevation relative to a printed circuit board snap-mounted to the chassis. The optical components are automatically adjusted in a test fixture.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: December 15, 1998
    Assignee: Symbol Technologies, Inc.
    Inventors: Joseph Giordano, Jean Tu, Yuri Gofman, Daniela Stratienco, Timothy Kehoe, Paul Severino, Howard Shepard, Edward Barkan, David Harder, Joel Kahn, Robert Sanders, John Barile, Chang-Hong Chen, Steven Chew, Robert Doran, Robert Grabowski
  • Patent number: D418500
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: January 4, 2000
    Assignee: Symbol Technologies, Inc.
    Inventors: Joseph Giordano, Jean Tu, Philip Swift