The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 15, 2005

Filed:

Sep. 29, 2000
Applicants:

Minoru Handa, Nishinomiya, JP;

Hiroshi Iino, Nishinomiya, JP;

Yasushi Nishimori, Nishinomiya, JP;

Akira Okunishi, Nishinomiya, JP;

Inventors:

Minoru Handa, Nishinomiya, JP;

Hiroshi Iino, Nishinomiya, JP;

Yasushi Nishimori, Nishinomiya, JP;

Akira Okunishi, Nishinomiya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S003/80 ;
U.S. Cl.
CPC ...
Abstract

A receiving beam is formed using 60 elements arranged in a 90° sector area of a cylindrical receiving array. Receiving beamis formed with elementsdivided into two (front and rear) groups. Specifically, the elementsare divided into rear group 1 (elements) and front group 2 (elements) in the beam direction, and the receiving beam is formed by using sample data obtained from the transducer elementsof group 1 in a current scanning cycle as well as sample data obtained from the transducer elementsof group 2 in a preceding scanning cycle. This approach makes it possible to form the receiving beam such that incoming waves of a short-pulse signal would simultaneously hit the relevant transducer elements of the receiving array and thereby improve directivity and sensitivity of the receiving beam for the reception of short-pulse waves.


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