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:
Oct. 13, 2020
Filed:
Apr. 13, 2018
Sound Design Lab Llc, Iwata-shi, JP;
Osamu Maeda, Iwata, JP;
SOUND DESIGN LAB LLC, Iwata-shi, JP;
Abstract
The present invention provides a sound pressure signal output apparatus capable of synthesizing and outputting a sound pressure signal that simulates the sound of a real engine with reduced processing load in real time while flexibly adapting to specification changes. The sound pressure signal output apparatus comprises: an interface that acquires single sound data corresponding to the sound generated by one cylinder of a vehicle-mounted internal combustion engine during one combustion cycle in the cylinder, acquires order sound data corresponding to order sound for a frequency corresponding to the engine rotation speed, and acquires random sound data generated corresponding to at least either the material or the shape of the structure that makes up an engine; and a synthesis unit that synthesizes and outputs the sound pressure signal of an engine sound using the single sound data and the like acquired.