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:
Jun. 19, 2018
Filed:
Dec. 13, 2013
Denso Corporation, Kariya, Aichi-pref., JP;
Masanobu Yukumatsu, Kariya, JP;
DENSO CORPORATION, Kariya, Aichi-pref., JP;
Abstract
An FMCW (frequency modulated continuous wave) radar apparatus is provided. The apparatus transmits a transmission signal that includes a first frequency-rise time period whose frequency sequentially rises with a first modulated gradient, a first frequency-fall time period whose frequency sequentially falls with the first modulated gradient, a second frequency-rise time period whose frequency sequentially rises with a second modulated gradient different from the first modulated gradient, and a second frequency-fall time period whose frequency sequentially falls with the second modulated gradient. In the apparatus, frequencies of a plurality of peaks are specified in respect of each of beat signals obtained in response to the transmission. Using the specified plurality of peaks as objects, a notification is given as to the presence of oscillation in a power supply bias circuit, on the basis of that, of the groups each formed by extracting peaks in a manner of extracting one from each of the beat signals, there is a group in which all the peaks in the group are within the same frequency range.