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.
Patent No.:
Date of Patent:
Feb. 10, 2009
Filed:
Jul. 18, 2007
Tatsuya Kojima, Nishinomiya, JP;
Takumi Fujikawa, Nishinomiya, JP;
Tatsuya Kojima, Nishinomiya, JP;
Takumi Fujikawa, Nishinomiya, JP;
Furuno Electric Co., Ltd., Nishinomiya, JP;
Abstract
A radar device is realized in which an object and extraneous waves such as radar interference or white noise are distinguished and displayed in different display forms. Subtraction Flag Generatordetermines the time-wise continuity and the planar consecutiveness of target echo data. The time-wise continuity is an amount that indicates the extent to which significant echo data continued to be present at the same position, and is obtained from the echo data of a past predetermined number of sweep rotations. Planar consecutiveness indicates the extent to which significant echo data is present around target echo data, and is obtained by acquiring in a planar fashion echo data for each of predetermined amounts in a distance direction and a heading direction, centered around the target echo data. When Subtraction Flag Generatordetects that there is either of time-wise continuity and planar consecutiveness, Subtraction Flag Generatorattaches a subtraction flag '1'. Subtraction Processorsets a low attenuation amount for the data level when the subtraction flag is '1', and sets a fast attenuation amount when the subtraction flag is “0”.