Patents by Inventor David A. Slavin

David A. Slavin 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).

  • Reduced coupling saw filter
    Patent number: 6051908
    Abstract: A relatively narrow fractional bandwidth saw filter formed on a standard ST cut of quartz. The electrode pattern is modified in order to eliminate distortion. In particular, the overlap pattern is formed with one or less active overlaps per wavelength in those regions of the SAW filter where the weighing function is maximum. A plurality of six finger/.lambda. electrode patterns with two active overlaps per wavelength is also provided.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: April 18, 2000
    Assignee: TRW Inc.
    Inventors: Edward M. Garber, Daniel K. Ko, David A. Slavin
  • Reduced coupling saw filter
    Patent number: 5952765
    Abstract: A relatively narrow fractional bandwidth saw filter formed on a standard ST cut of quartz. The electrode pattern is modified in order to eliminate distortion. In particular, the overlap pattern is formed with one or less active overlaps per wavelength in those regions of the SAW filter where the weighing function is maximum. A plurality of six finger/.lambda. electrode patterns with two active overlaps per wavelength is also provided.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: September 14, 1999
    Assignee: TRW Inc.
    Inventors: Edward M. Garber, Daniel K. Ko, David A. Slavin