Patents Assigned to Furuno Diagnostics America, Inc.
  • Patent number: 5784336
    Abstract: A beamformer includes an array having a plurality of channels of delay elements which are constructed of charge coupled devices (CCDs). Each channel has a first plurality of delay elements cells which perform beam focussing and a second plurality of delay elements which perform beam steering. In this manner beam steering delays and beam focussing delays may be calculated independently. Typically, the second plurality of delay elements have a resolution which is typically coarser than the resolution of the first plurality of delay element cells which function to focus the beam. A signal may be inserted into any one of the delay elements of the first plurality to provide an appropriate delay. The signal is then output from the last delay element of the first plurality to the second plurality. The signal is delivered from a selected delay element of the second plurality to a charge sum data bus, which combines the signals output from each of the channels.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: July 21, 1998
    Assignee: Furuno Diagnostics America, Inc.
    Inventors: Gopal Gopinathan, William Wong