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:
Jul. 27, 2010
Filed:
Mar. 02, 2004
Osamu Maeda, Iwata, JP;
Osamu Maeda, Iwata, JP;
Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka, JP;
Abstract
A sound synthesizer for a vehicle includes a driving operation detector that detects an operation amount of a driving operation input device by a driver. A speed calculator calculates a revolution speed of a drive unit based on the detected operation amount. A sound controller outputs a sound control signal based on an input of the operation amount and based on the revolution speed. A memory stores drive sound data in advance. A synthesized sound output generator reads out drive sound data from the memory and outputs a voltage signal corresponding to a sound pressure signal. The sound controller outputs sound control signals so that the drive sound data within a range of the operational state corresponding to the inputted operation amount and the revolution speed is repetitively played.