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. 05, 2000
Filed:
Mar. 03, 1998
Fukushi Kawakami, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
A music apparatus is constructed for introducing a music sound into an acoustic space, and is equipped with an acoustic feedback system for introducing a reflection sound into the acoustic space. In the music apparatus, an input device sequentially provides performance information. A sound source generates a music signal representative of the music sound in response to the performance information provided from the input device. A plurality of channels of the acoustic feedback system are provided in the music apparatus, and are spatially separate from each other. Each channel is structured by a microphone for collecting a sound from the acoustic space to produce a sound signal representative of the sound introduced into the acoustic space, a processor for processing the sound signal to generate a reflection signal representative of a reflection sound in the acoustic space, a mixer for mixing the reflection signal and the music signal with each other to form a mix signal, and a loudspeaker for acoustically reproducing the mix signal to introduce the music sound and the reflection sound into the acoustic space.