公开(公告)号：EP1891461B1

公开(公告)日：2014-05-28

申请号：EP05782717.2

申请日：2005-08-02

申请人： Johnson Outdoors, Inc.

发明人： BETTS, David, A. ,  DERROW, Robert, W. ,  HOWELLS, David, J.

IPC分类号： G01S7/521 ,  G01S15/89 ,  G01S15/96 ,  H04R1/44

CPC分类号： G01S7/521 ,  G01S7/56 ,  G01S15/8902 ,  G01S15/899 ,  G01S15/96 ,  H04R1/44

公开(公告)号：EP1891461A2

公开(公告)日：2008-02-27

申请号：EP05782717.2

申请日：2005-08-02

申请人： Johnson Outdoors, Inc.

发明人： BETTS, David, A. ,  DERROW, Robert, W. ,  HOWELLS, David, J.

IPC分类号： G01S15/89

CPC分类号： G01S7/521 ,  G01S7/56 ,  G01S15/8902 ,  G01S15/899 ,  G01S15/96 ,  H04R1/44

摘要： A sonar imaging system for a watercraft is disclosed. The sonar imaging system comprises a transducer coupled to the watercraft and having at least one side scanning element and at least one bottom scanning element, an electronic control head unit coupled to the transducer and configured to display sonar images. The downward acoustic elements may be circular and the side scan acoustic elements may be rectangular. A software filter may be provided to remove noise generated by a spark plug or other operation of a motor for the watercraft.