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:
Mar. 31, 1992
Filed:
Sep. 02, 1988
Takeshi Adachi, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
The musical tone generating apparatus includes at least a waveform memory for storing waveform data, a stereophonic effect giving portion, left and right sound systems. The stereophonic effect giving portion gives stereophonic effect to the waveform data read from the waveform memory so that the left and right sound systems can generate left and right musical tones respectively based on the same waveform data outputted from the stereophonic effect giving portion. This stereophonic effect giving portion includes at least one digital filter whose filter coefficient can be adequately selected. This digital filter filters out the waveform data, and then the filtered waveform data are supplied to one of the left and right sound systems so that frequency characteristic of the left musical tone will be different from that of the right musical tone. Meanwhile, two digital filters can be provided at both inputs of the left and right sound systems.