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:
Jun. 13, 2006
Filed:
Jul. 16, 2003
Masao Tomizawa, Kanagawa, JP;
Kaoru Tsukamoto, Tokyo, JP;
Tomohiro Iwanaga, Tokyo, JP;
Kimito Horie, Tokyo, JP;
Masao Tomizawa, Kanagawa, JP;
Kaoru Tsukamoto, Tokyo, JP;
Tomohiro Iwanaga, Tokyo, JP;
Kimito Horie, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
A music playback unit corrects the frequency characteristics of a speaker installed in a portable telephone, without using an equalizer. The musical score data is stored in a first memory, and data for correcting the velocity of musical score data for each velocity of each note is stored in a second memory. The sound generator driver reads the musical score data from the first memory, and reads the correction data from the second memory, and also corrects the velocity of the musical score data by substituting the musical score data and correction data in a predetermined calculation formula. The musical score data after the velocity is corrected is played by the MIDI sound generator, amplifier and speaker.