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. 23, 1999
Filed:
Mar. 18, 1997
Kiyomi Takauji, Hamamatsu, JP;
Kawai Musical Instruments Manufacturing Co., Ltd., Hamamatsu, JP;
Abstract
An electronic musical instrument having a waveform memory of a relatively small capacity for storing waveform information similar to conventional waveform information, the waveform memory being compatible with any data reading scheme. The waveform information is stored in the form of a plurality of frames. Each frame includes a plurality of pieces of sampled waveform data compressed by ADPCM or the like and decode information for extending the sampled waveform data to be read next to the current frame. Storing the decode information in a frame for extending the sampled waveform data stored in frames before and after that frame makes it possible to extract the necessary decode information from the frame read immediately before regardless of whether the frames are read forward or backward.