Patents by Inventor Ka Man Au

Ka Man Au 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: 20030222148
    Abstract: The wireless PDT of the present invention employs a “display-on bottom” design which places the unit perfectly centered in the hand of the operator, allowing for the best possible viewing as well as providing comfortable single-handed operation. The high-resolution LCD display allows the PCT to show sharp, clear bitmap images while supporting all Windows-recognized font types and sizes. With the auto back-lit feature, the brightness adjusts automatically making the screen easy to read in all light conditions. The PDT is designed for support within the download/charger cradle of a base station which interfaces with a host system using either USB or RS232 interface. Two standard ‘AA’ or rechargeable Li-Ion batteries provide more than 100 hours of operation. In addition, the PDT comes standard with 2MB of RAM providing enough memory to store over 100,000 records.
    Type: Application
    Filed: January 12, 2003
    Publication date: December 4, 2003
    Applicant: Metrologic Instruments, Inc.
    Inventors: Mark Schmidt, Garrett K. Russell, C. Harry Knowles, Xiaoxun Zhu, Ka Man Au, Congwei Xu, Liang Liu, Kai Ji, Wuqing Zhang
  • Publication number: 20030218070
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: May 16, 2002
    Publication date: November 27, 2003
    Applicant: Metrologic Instruments, Inc.
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Andrew Jankevics, Sankar Ghosh, Charles A. Naylor, Thomas Amundsen, Robert Blake, William Svedas, Shawn Defoney, Edward Skypala, Pirooz Vatan, Russell Joseph Dobbs, George Kolis, Mark C. Schmidt, Jeffery Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz, Barry E. Schwartz, Steven Y. Kim, Dale Fisher, Jon Van Tassell
  • Patent number: 6619550
    Abstract: A fully automated package identification and measuring system, in which an omni-directional holographic scanning tunnel is used to read bar codes on packages entering the tunnel, while a package dimensioning subsystem is used to capture information about the package prior to entry into the tunnel. Mathematical models are created on a real-time basis for the geometry of the package and the position of the laser scanning beam used to read the bar code symbol thereon. The mathematical models are analyzed to determine if collected and queued package identification data is spatially and/or temporally correlated with package measurement data using vector-based ray-tracing methods, homogeneous transformations, and object-oriented decision logic so as to enable simultaneous tracking of multiple packages being transported through the scanning tunnel.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: September 16, 2003
    Assignee: Metrologic Instruments, Inc.
    Inventors: Timothy A. Good, LeRoy Dickson, Francis Lodge, Xiaoxun Zhu, David M. Wilz, George B. Rockstein, Stephen J. Colavito, Robert E. Blake, Ka Man Au, Sankar Ghosh, George Kolis, Ian A. Scott, Thomas Amundsen, Gennady Germaine, Andrew D. Dehennis, Carl Harry Knowles
  • Patent number: 6616048
    Abstract: A fully automated package identification and measuring system in which an omni-directional holographic scanning tunnel is used to read bar codes on packages entering the tunnel, while a package dimensioning subsystem is used to capture information about the package prior to entry into the tunnel. Mathematical models are created on a real-time basis for the geometry of the package and the position of the laser scanning beam used to read the bar code symbol hereon. The mathematical models area analyzed to determine if collected and queued package identification data is spatially and/or temporally correlated with package measurement data using vector-based ray-tracing methods, homogenous transformations, and object-oriented decision logic so as to enable simultaneous tracking of multiple packages being transported through the scanning tunnel.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: September 9, 2003
    Assignee: Metrologic Instruments, Inc.
    Inventors: Timothy A. Good, Andrew D. Dehennis, Xiaoxun Zhu, David M. Wilz, Sr., George B. Rockstein, Stephen J. Colavito, Robert E. Blake, Ka Man Au, George Kolis, C. Harry Knowles
  • Publication number: 20030146282
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: February 6, 2002
    Publication date: August 7, 2003
    Applicant: Metrologic Instruments, Inc.
    Inventors: Constantine J. Tsikos, Allan Wirth, Timothy A. Good, Andrew Jankevics, Steve Y. Kim, Thomas Amundsen, Charles A. Naylor, Russell Joseph Dobbs, Patrick A. Giordano, Jeffery Yorsz, Mark S. Schmidt, Stephen J. Colavito, David M. Wilz, Ka Man Au, William Svedas, Sankar Ghosh, Michael D. Schnee, Xiaoxun Zhu, C. Harry Knowles
  • Publication number: 20030089778
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: May 23, 2002
    Publication date: May 15, 2003
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Sankar Ghosh, Thomas Amundsen
  • Publication number: 20030080192
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: June 6, 2002
    Publication date: May 1, 2003
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Andrew Jankevics, Sankar Ghosh, Charles A. Naylor, Thomas Amundsen, Robert Blake, William Svedas, Shawn Defoney, Edward Skypala, Pirooz Vatan, Russell Joseph Dobbs, George Kolis, Mark C. Schmidt, Jeffery Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz, Barry E. Schwartz, Steven Y. Kim, Dale Fisher, Jon Van Tassell
  • Publication number: 20030080190
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: May 23, 2002
    Publication date: May 1, 2003
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Andrew Jankevics, Sankar Ghosh, Charles A. Naylor, Thomas Amundsen, Robert Blake, William Svedas, Shawn Defoney, Edward Skypala, Pirooz Vatan, Russell Joseph Dobbs, George Kolis, Mark C. Schmidt, Jeffery Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz, Barry E. Schwartz, Steven Y. Kim, Dale Fisher, Jon Van Tassell
  • Patent number: 6554189
    Abstract: A fully automated package identification and measuring system, in which an omni-directional holographic scanning tunnel is used to read bar codes on packages entering the tunnel, while a package dimensioning subsystem is used to capture information about the package prior to entry into the tunnel. Mathematical models are created on a real-time basis for the geometry of the package and the position of the laser scanning beam used to read the bar code symbol thereon. The mathematical models are analyzed to determine if collected and queued package identification data is spatially and/or temporally correlated with package measurement data using vector-based ray-tracing methods, homogeneous transformations, and object-oriented decision logic so as to enable simultaneous tracking of multiple packages being transported through the scanning tunnel.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: April 29, 2003
    Assignee: Metrologic Instruments, Inc.
    Inventors: Timothy A. Good, Xiaoxun Zhu, David M. Wilz, Sr., George B. Rockstein, Stephen J. Colavito, Robert E. Blake, Ka Man Au, Sankar Ghosh, George Kolis, Ian A. Scott, Thomas Amundsen, Gennady Germaine, Andrew D. Dehennis, LeRoy Dickson, Carl Harry Knowles
  • Publication number: 20030071119
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: April 30, 2002
    Publication date: April 17, 2003
    Applicant: Metrologic Instruments, Inc.
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Sankar Ghosh
  • Publication number: 20030071122
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: April 29, 2002
    Publication date: April 17, 2003
    Applicant: Metrologic Instruments, Inc.
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Ka Man Au, Barry E. Schwartz
  • Publication number: 20030071128
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: May 23, 2002
    Publication date: April 17, 2003
    Applicant: Metrologic Instruments, Inc.
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Timothy A. Good, Sankar Ghosh, Thomas Amundsen
  • Publication number: 20030071124
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: April 30, 2002
    Publication date: April 17, 2003
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Andrew Jankevics, Sankar Ghosh, Charles A. Naylor, Thomas Amundsen, Robert Blake, William Svedas, Shawn Defoney, Edward Skypala, Pirooz Vatan, Russell Joseph Dobbs, George Kolis, Mark C. Schmidt, Jeffery Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz, Barry E. Schwartz, Steven Y. Kim, Dale Fisher, Jon Van Tassell
  • Publication number: 20030062415
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: April 29, 2002
    Publication date: April 3, 2003
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Sankar Ghosh
  • Publication number: 20030062414
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: March 14, 2002
    Publication date: April 3, 2003
    Applicant: Metrologic Instruments, Inc.
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Ka Man Au, Sankar Ghosh
  • Publication number: 20030052175
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: April 23, 2002
    Publication date: March 20, 2003
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Andrew Jankevics, Sankar Ghosh, Charles A. Naylor, Thomas Amundsen, Robert Blake, William Svedas, Shawn Defoney, Edward Skypala, Pirooz Vatan, Russell Joseph Dobbs, George Kolis, Mark C. Schmidt, Jeffery Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz, Barry E. Schwartz, Steven Y. Kim, Dale Fisher, Jon Van Tassell
  • Publication number: 20030042315
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: May 17, 2002
    Publication date: March 6, 2003
    Applicant: Metrologic Instruments, Inc.
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Sankar Ghosh
  • Publication number: 20030042308
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: February 5, 2002
    Publication date: March 6, 2003
    Inventors: Constantine J. Tsikos, Allan Wirth, Timothy A. Good, Andrew Jankevics, Steve Y. Kim, Thomas Amundsen, Charles A. Naylor, Russell Joseph Dobbs, Patrick A. Giordano, Jeffery Yorsz, Mark S. Schmidt, Stephen J. Colavito, David M. Wilz, Ka Man Au, William Svedas, Sankar Ghosh, Michael D. Schnee, Xiaoxun Zhu, C. Harry Knowles
  • Publication number: 20030038179
    Abstract: A camera-based tunnel-type package identification system comprising at least first and second camera units, a package dimension subsystem, and a data communications network installed about a conveyor belt structure. The first camera unit is mounted above the conveyor belt structure, and has a first linear imaging subsystem with a field of view (FOV) having automatic zoom and focus imaging optics, and a first camera control computer for controlling the operation of the first linear imaging subsystem. The second camera unit is mounted below or along side of the conveyor belt structure, and has a second linear imaging subsystem with a field of view (FOV) having automatic zoom and focus imaging optics, and a second camera control computer for controlling the operation of the second linear imaging subsystem.
    Type: Application
    Filed: March 15, 2002
    Publication date: February 27, 2003
    Applicant: Metrologic Instruments, Inc.
    Inventors: Contantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Ka Man Au, Sankar Ghosh
  • Publication number: 20030034395
    Abstract: Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith, The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.
    Type: Application
    Filed: April 23, 2002
    Publication date: February 20, 2003
    Applicant: Metrologic Instruments, Inc.
    Inventors: Constantine J. Tsikos, C. Harry Knowles, Xiaoxun Zhu, Michael D. Schnee, Ka Man Au, Allan Wirth, Timothy A. Good, Andrew Jankevics, Sankar Ghosh, Charles A. Naylor, Thomas Amundsen, Robert Blake, William Svedas, Shawn Defoney, Edward Skypala, Pirooz Vatan, Russell Joseph Dobbs, George Kolis, Mark C. Schmidt, Jeffery Yorsz, Patrick A. Giordano, Stephen J. Colavito, David W. Wilz,, Barry E. Schwartz, Steven Y. Kim, Dale Fisher, Jon Van Tassell