Patents by Inventor Robert R. Herold

Robert R. Herold 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: 8196831
    Abstract: A system for power supply synchronization in an Radio Frequency Identification (RFID) reader is shown and described. In one embodiment, the system includes one or more switched mode power supply devices and a signal generator. Each of the switched mode power supply devices provides power to at least one component of the RFID reader. The signal generator transmits a synchronization signal of a controlling frequency to each of the one or more power supply devices. In one embodiment, the system includes a signal processing unit that is configured to reject one or more spectral components from the output of the RFID reader.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: June 12, 2012
    Assignee: Trimble Navigation Limited
    Inventors: John Carrick, Robert R. Herold, Francis Honore
  • Publication number: 20100069011
    Abstract: A circuit for transmitter-receiver isolation that is useful in a monostatic (combined transmitting and receiving) antenna configuration is shown and described. In addition, methods and systems are shown for automatically adjusting the circuit in response to changes in antenna configuration, external signal reflectors, and jamming energy (e.g., self jammer energy) by adjusting the circuit to tune out these sources of jammer energy to yield an increase in RFID reader receiver sensitivity when compared to measurements of the receiver sensitivity when the jammer energy is not present.
    Type: Application
    Filed: April 21, 2008
    Publication date: March 18, 2010
    Applicant: THINGMAGIC, INC.
    Inventors: John C. Carrick, Robert R. Herold, Sri Krishna, Matthew Reynolds, Yael G. Maguire, Ravikanth Pappu
  • Publication number: 20090261659
    Abstract: A system for power supply synchronization in an Radio Frequency Identification (RFID) reader is shown and described. In one embodiment, the system includes one or more switched mode power supply devices and a signal generator. Each of the switched mode power supply devices provides power to at least one component of the RFID reader. The signal generator transmits a synchronization signal of a controlling frequency to each of the one or more power supply devices. In one embodiment, the system includes a signal processing unit that is configured to reject one or more spectral components from the output of the RFID reader.
    Type: Application
    Filed: April 17, 2009
    Publication date: October 22, 2009
    Inventors: John C. Carrick, Robert R. Herold, Francis Honore