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. 23, 1993
Filed:
Feb. 28, 1991
Tadayuki Itakura, Nagano, JP;
Mutsumi Aruga, Nagano, JP;
Makoto Orii, Nagano, JP;
Masaki Yamamoto, Nagano, JP;
Shigeyoshi Takagi, Nagano, JP;
Kabushiki Kaisha Sankyo Seiki Seisakusho, Nagano, JP;
Abstract
A device for electronically generating a sound according to the present invention includes an integrated circuit chip producing electronic signals corresponding to a desired melody, a switch controlling the ON and OFF states of the integrated circuit chip, a battery powering the integrated circuit chip, a sound generator having a dish-shaped vibrating plate and producing sounds responsive to the electronic signals, and a circuit pattern section having a plurality of lead portions interconnecting the integrated circuit chip, the switch, the battery and the sound generator. The circuit pattern section is formed by punching a conductive metal sheet in a press. Selected ones of the lead portions can advantageously be formed by punching into the battery holder or the switch. According to one aspect of the invention, an acoustic chamber is defined by the sound generator and a cover formed by potting or injection molding. According to another aspect of the invention, a resin seal is formed over the integrated circuit chip. A method for forming the electronic sound generating device is also described.