Patents by Inventor Zbigniew Siemiatkowski

Zbigniew Siemiatkowski 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).

  • Solar-powered light assembly with automatic light control
    Patent number: 6573659
    Abstract: A solar-powered light assembly comprising at least one light-emitting diode (LED) powered by a rechargeable battery, a solar panel to recharge the battery and to sense light levels, and control circuitry to monitor the rechargeable battery at intervals. At the start of an interval, preferably, the transition from night to day, the control circuitry sets the at least one LED to output light at a pre-determined level based on the battery voltage at the start of the interval. This control scheme is used to adjust the LED output to the available solar illumination recharging the battery to ensure reliable and efficient operation.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: June 3, 2003
    Assignee: Carmanah Technologies, Inc.
    Inventors: Ion Toma, Zbigniew Siemiatkowski, Lysle Brock Russell
  • Solar-powered light assembly with automatic light control
    Publication number: 20020053879
    Abstract: A solar-powered light assembly comprising at least one light-emitting diode (LED) powered by a rechargeable battery, a solar panel to recharge the battery and to sense light levels, and control circuitry to monitor the rechargeable battery at intervals. At the start of an interval, preferably, the transition from night to day, the control circuitry sets the at least one LED to output light at a pre-determined level based on the battery voltage at the start of said interval. This control scheme is used to adjust the LED output to the available solar illumination recharging the battery to ensure reliable and efficient operation.
    Type: Application
    Filed: April 2, 2001
    Publication date: May 9, 2002
    Inventors: Ion Thoma, Zbigniew Siemiatkowski, Lysle Brock Russell
  • Programmable object identification transponder system
    Patent number: 5144314
    Abstract: A system for indenitfying objects, such as workpieces on an assembly line, includes a transponder for attaching to an object and a radio frequency (RF) transceiver. The transceiver can program the transponder with data about the specific object and interrogate the transponder to obtain previously programmed data. The transponder responds to different RF signal strengths and commands from the transceiver to select whether it will store or transmit data. Data is exchanged between the two devices using Manchester encoding. The transceiver processes the encoded data signal from the transponder by measuring and storing the intervals between level transitions in the signal. The stored intervals are then processed in non-real time to recover the data.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: September 1, 1992
    Assignee: Allen-Bradley Company, Inc.
    Inventors: Eric Malmberg, Hien Tran, Zbigniew Siemiatkowski