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. 25, 2006
Filed:
Nov. 17, 2004
Kazuo Hikawa, Tokyo, JP;
Kenichi Takahashi, Tokyo, JP;
Kazuo Hikawa, Tokyo, JP;
Kenichi Takahashi, Tokyo, JP;
Crimson Technology, Inc., Tokyo, JP;
Abstract
A musical performance information compression apparatus or the like of the present invention has a primary code production unit which separates SMF or the like into information of a relative time between events, information of a sounding start pitch, information of loudness, information of a sounding end pitch, and other information for each channel and which integrates each information regardless of the channel and which disposes the integrated information in independent regions to produce a primary code, and a secondary code production unit which compresses the information of each region of the primary code produced by this primary code production unit by an LZ coding method, a Huffman coding method and the like.