Patents by Inventor Sandra J. Guzman

Sandra J. Guzman 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).

  • Tactile transducers and method of operating
    Patent number: 7129824
    Abstract: A portable electronic device (100) includes a vibrating transducer having a resilient support and a first mass supported by the first resilient support forming a mechanical resonator, and an electrical circuit coupled to the first vibrating transducer to apply a drive signal. A plurality of tactile vibration transducers (130, 140) can work in unison to produce strong tactile stimulus (216, 228, 230).
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: October 31, 2006
    Assignee: Motorola Inc.
    Inventors: David B. Cranfill, Sandra J. Guzman, Scott K. Isabelle, Rindala Saliba