Patents by Inventor Steven David Lavache

Steven David Lavache 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).

  • Wireless position sensing in three dimensions using ultrasound
    Patent number: 9791547
    Abstract: The present invention provides a method of position sensing between a wireless mobile component carrying a mobile ultrasonic transducer and a fixed component carrying a plurality of fixed ultrasonic transducers in a predetermined spaced-apart relationship, the method comprising turning off all the transducers to establish a period of silence, activating one or more of the fixed transducers to transmit an ultrasonic signal, starting a plurality of timers corresponding to the respective plurality of fixed transducers generally simultaneously with transmitting the signal, receiving the signal at the mobile transducer, transmitting a signal from the mobile transducer responsive to the received signal, receiving the signal transmitted by the mobile transducer at each fixed transducer and stopping the respective timer generally at the time of reception of an edge of the received signal found within the first twenty received edges and preferably within the first ten received edges and more preferably at the first re
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: October 17, 2017
    Assignee: Performance Designed Products LLC
    Inventor: Steven David Lavache
  • RFID antenna multiplexing
    Patent number: 8981907
    Abstract: A system to multiplex antennas for radio-frequency communication uses one or more antenna shorting circuits to selectively enable RF communication via one of a plurality of antenna matching networks. The system is cost-efficient compared to alternatives. The RF communication includes read and/or read/write communication with, e.g., radio-frequency identification (RFID) tags.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: March 17, 2015
    Assignee: Disney Enterprises, Inc.
    Inventor: Steven David Lavache
  • WIRELESS POSITION SENSING IN THREE DIMENSIONS USING ULTRASOUND
    Publication number: 20110026363
    Abstract: The present invention provides a method of position sensing between a wireless mobile component carrying a mobile ultrasonic transducer and a fixed component carrying a plurality of fixed ultrasonic transducers in a predetermined spaced-apart relationship, the method comprising turning off all the transducers to establish a period of silence, activating one or more of the fixed transducers to transmit an ultrasonic signal, starting a plurality of timers corresponding to the respective plurality of fixed transducers generally simultaneously with transmitting the signal, receiving the signal at the mobile transducer, transmitting a signal from the mobile transducer responsive to the received signal, receiving the signal transmitted by the mobile transducer at each fixed transducer and stopping the respective timer generally at the time of reception of an edge of the received signal found within the first twenty received edges and preferably within the first ten received edges and more preferably at the first re
    Type: Application
    Filed: March 28, 2007
    Publication date: February 3, 2011
    Applicant: IN2GAMES LIMITED
    Inventor: Steven David Lavache