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:
Jan. 16, 2007
Filed:
Mar. 30, 2006
Koichi Kai, Tokyo, JP;
Koichi Kai, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An on-vehicle radar system capable of detecting a range error from range data based on an echo from a target (). Range error is detected when amplitudes of beat frequency components in two adjacent range gates are substantially equal. The system includes a transmitting unit () for radiating a modulated wave having frequency increasing and decreasing repetitively after pulse modulation, a receiving unit () for receiving the echo, and an arithmetic unit () for detecting a range error ascribable to aberration of modulation band width due to frequency increase and decrease of transmission wave (W) by comparing a range corresponding to the range gate with that determined from a frequency difference between transmission wave and echo. The arithmetic unit () detects the range error on the basis of frequency difference components having substantially same amplitudes in adjacent range gates.