Patents by Inventor Aleksey Tareyev

Aleksey Tareyev 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).

  • Touch sensing method and apparatus
    Patent number: 5920309
    Abstract: Method and apparatus for sensing the simultaneous proximity of one or more fingers or other appropriate objects to a capacitive touch sensor. A modulator/demodulator pair drive and sense either a single trace or a pair of traces. In a dual trace embodiment, differentially sensed signals are then peak detected converted from voltage to current. The output signal is then calibrated to adjust for trace variations, followed by appropriate gain and level shifting, and analog-to-digital conversion for use as the input to a microcontroller.
    Type: Grant
    Filed: January 4, 1996
    Date of Patent: July 6, 1999
    Assignee: Logitech, Inc.
    Inventors: Stephen J. Bisset, Bernard Kasser, Berni Joss, Aleksey Tareyev