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:
Apr. 03, 2007
Filed:
Nov. 08, 2004
Satoshi Mikami, Sapporo, JP;
Kaoru Yokoo, Kawasaki, JP;
Takayuki Sasaki, Sapporo, JP;
Takahiro Suzuki, Sapporo, JP;
Satoshi Mikami, Sapporo, JP;
Kaoru Yokoo, Kawasaki, JP;
Takayuki Sasaki, Sapporo, JP;
Takahiro Suzuki, Sapporo, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A radar equipment of the present invention amplifies a reception signal with feedback based on the delay amount obtained from the correlation detection result. Accordingly, it becomes possible to maintain the reception signal (demodulated signal) level to a proper level depending on the distance to the target, and accurate measurement can be achieved with high precision. Namely, the reception signal is amplified depending on the distance to the target, and the reception signal level is made within a tolerable input level range of a logic circuit for performing correlation calculation. In particular, during tracking the target, even when a reflected signal is received with abrupt level variation caused by noise or a reflected signal from an object other than the target, incorrect detection of the target can be avoided by disabling the correlation calculation.