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. 03, 2017
Filed:
Apr. 01, 2013
Furuno Electric Co., Ltd., Nishinomiya, Hyogo, JP;
Dorian Cretin, Nishinomiya, JP;
FURUNO ELECTRIC COMPANY LIMITED, Hyogo, JP;
Abstract
A sonic speed measurement device in which reliability is enhanced while the amount of calculation is minimized is provided. A propagation path postulation component postulates the sonic speed through bone, and calculates propagation paths up until ultrasonic waves transmitted from a wave transmitter are received by oscillators. A postulated propagation time calculator calculates the propagation time it takes for the ultrasonic waves transmitted from the wave transmitter to be received by the oscillators, based on the propagation paths. A Fourier transform component subjects I signals and Q signals of signals outputted by the oscillators to Fourier transform to generate Fourier transform data. A phase shifter shifts the phase of the Fourier transform data for the oscillators in a frequency region according to the propagation time. A sonic speed derivation component determines the validity of the postulated sonic speed based on the Fourier transform data shifted by the phase shifter.