Patents by Inventor Haixi Wang

Haixi Wang 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).

  • Laser scanning code symbol reading system providing control over length of laser scan line projected onto a scanned object using dynamic range-dependent scan angle control
    Patent number: 10049245
    Abstract: Method of and system for reading bar code symbols using a hand-supportable laser scanning bar code symbol reading system supporting an improved level control over the length of laser scan lines projected onto scanned objects, at any instant in time, in a manner dependent the detected location, distance or range of the scanned object in the scanning field of the system during system operation. The length characteristics of the laser scan line are controlled by setting the laser scan sweep angle as a function of detected or estimated distance or range of the object from the system. In the illustrative embodiment, the laser scan sweep angle is controlled by supplying a drive current to the scanning mechanism, as a function of detected or estimated distance or range of the object from the scanning system.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: August 14, 2018
    Assignee: Metrologic Instruments, Inc.
    Inventors: Zhipeng Teng, Haixi Wang
  • LASER SCANNING CODE SYMBOL READING SYSTEM PROVIDING CONTROL OVER LENGTH OF LASER SCAN LINE PROJECTED ONTO A SCANNED OBJECT USING DYNAMIC RANGE-DEPENDENT SCAN ANGLE CONTROL
    Publication number: 20150144698
    Abstract: Method of and system for reading bar code symbols using a hand-supportable laser scanning bar code symbol reading system supporting an improved level control over the length of laser scan lines projected onto scanned objects, at any instant in time, in a manner dependent the detected location, distance or range of the scanned object in the scanning field of the system during system operation. The length characteristics of the laser scan line are controlled by setting the laser scan sweep angle as a function of detected or estimated distance or range of the object from the system. In the illustrative embodiment, the laser scan sweep angle is controlled by supplying a drive current to the scanning mechanism, as a function of detected or estimated distance or range of the object from the scanning system.
    Type: Application
    Filed: June 20, 2012
    Publication date: May 28, 2015
    Applicant: METROLOGIC INSTRUMENTS, INC.
    Inventors: Zhipeng Teng, Haixi Wang