Patents by Inventor CHUNG KEUNG POON

CHUNG KEUNG POON 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: 11281266
    Abstract: A data capture device includes a housing supporting a window at a scan opening, a data capture module with a scanner field of view directed through the scan window, a heater controllable to heat the window, a non-contact temperature sensor with a sensor field of view directed at the scan window, an auxiliary temperature sensor, a humidity sensor, and a controller. The controller is configured to receive (i) a window temperature from the non-contact temperature sensor, (ii) an external ambient temperature from the auxiliary temperature sensor, and (iii) an external ambient humidity from the humidity sensor. The controller then determines a dew point according to the ambient temperature and the ambient humidity, and selects a power level for the heater based on a comparison of the window temperature and the dew point.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: March 22, 2022
    Assignee: Zebra Technologies Corporation
    Inventors: Chung Keung Poon, Ping-Hsi Hung, Michael V. Seguin
  • Publication number: 20200363847
    Abstract: A data capture device includes: a housing supporting a window at a scan opening of the housing; a data capture module having a scanner field of view directed through the scan window; a heater controllable to heat the window; a non-contact temperature sensor having a sensor field of view directed at the scan window; an auxiliary temperature sensor; a humidity sensor; and a controller configured to: receive (i) a window temperature from the non-contact temperature sensor, (ii) an external ambient temperature from the auxiliary temperature sensor, and (iii) an external ambient humidity from the humidity sensor; determine a dew point according to the ambient temperature and the ambient humidity; and select a power level for the heater based on a comparison of the window temperature and the dew point.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 19, 2020
    Inventors: Chung Keung Poon, Ping-Hsi Hung, Michael V. Seguin
  • Patent number: 9429331
    Abstract: A heater management system provides heat to heated zones of a mobile unit. For each heated zone, the heater management system includes a heater driver and a sensor. The heater driver is controlled by a unique control channel that is configured to heat the heated zone. The sensor senses environmental data external and internal to the heated zone. The heater management system includes a memory storing a heater driver prioritization database. The heater management system includes a heater control logic unit programmed to receive periodic reports from each of the sensors, prioritize the heated zones by utilizing the heater driver database as a function of the periodic reports, and determine power to be provided to each of the heater drivers based on the prioritizing operation and a predetermined global power limitation.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: August 30, 2016
    Assignee: Symbol Technologies, LLC
    Inventors: Chung Keung Poon, Thomas Koch, Armia N Nazeer
  • Publication number: 20150167988
    Abstract: A heater management system provides heat to heated zones of a mobile unit. For each heated zone, the heater management system includes a heater driver and a sensor. The heater driver is controlled by a unique control channel that is configured to heat the heated zone. The sensor senses environmental data external and internal to the heated zone. The heater management system includes a memory storing a heater driver prioritization database. The heater management system includes a heater control logic unit programmed to receive periodic reports from each of the sensors, prioritize the heated zones by utilizing the heater driver database as a function of the periodic reports, and determine power to be provided to each of the heater drivers based on the prioritizing operation and a predetermined global power limitation.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 18, 2015
    Applicant: SYMBOL TECHNOLOGIES, INC.
    Inventors: CHUNG KEUNG POON, THOMAS KOCH, ARMIA N. NAZEER