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:
Nov. 27, 1984
Filed:
Jan. 26, 1983
Applicant:
Inventor:
Kunio Sato, Tokyo, JP;
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G10G / ; G10H / ;
U.S. Cl.
CPC ...
84-101 ; 84454 ; 8447 / ; 84478 ;
Abstract
Basic frequency data is preliminarily stored in a ROM. Tuning data obtained from a tuning counter according to manual operation of a rotary switch, and basic frequency data out from the ROM are processed in a CPU to form modified frequency data, which is stored in a RAM. The modified frequency data stored in the RAM is selectively read out according to the operation of the keyboard, so that a tuned note sound is produced from a loudspeaker.