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:
Dec. 24, 2024
Filed:
Jun. 16, 2021
Denso Corporation, Kariya, JP;
Yu Koyama, Nisshin, JP;
Mitsuyasu Matsuura, Nisshin, JP;
Satoru Noro, Kariya, JP;
Tetsuya Aoyama, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
An apparatus includes a drive signal generator that selectively outputs, as a drive signal, one of a first drive signal and a second drive signal. The first drive signal has a first temporal frequency change within a first frequency band that is defined from a first lowest frequency to a first highest frequency inclusive. The second drive signal has a second temporal frequency change within a second frequency band that is defined from a second lowest frequency to a second highest frequency inclusive. Each of the first and second frequency bands has a corresponding one of first and second intermediate frequencies that is defined as one of a center frequency and an average frequency of the corresponding one of the first and second frequency bands. The second intermediate frequency is different from the first intermediate frequency. The second frequency band is partially overlapped with the first frequency band.