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:
Aug. 10, 1999
Filed:
Jan. 31, 1997
Jaime Narea, Oakbrook, IL (US);
Daniel Przybylski, Boca Raton, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A vibrating apparatus (200) comprises a vibrating element (202), electromagnetic coils (204, 206), driver circuits (210, 212), and a controller (208) coupled to the electromagnetic coils (204, 206) through driver circuits (210, 212). The vibrating element (202) has a first end fixedly mounted to a housing (106) and a second end having a permanent magnet (216) attached thereto. The electromagnetic coil (204) is positioned adjacent to the permanent magnet (216), and the electromagnetic coil (206) is positioned adjacent to the permanent magnet (216) on a side opposite the electromagnetic coil (204). The controller (208) generates signals to the electromagnetic coils (204, 206) through the driver circuits (210, 212) for producing magnetic fields around the electromagnetic coils (204, 206), where the magnetic fields attract and repel the permanent magnet (216) such that the vibrating element (202) vibrates at its resonating frequency.