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. 05, 2002
Filed:
Jan. 14, 1999
Geoffrey R. Ball, Sunnyvale, CA (US);
August C. Pombo, San Jose, CA (US);
Christopher A. Julian, Los Gatos, CA (US);
Eric M. Jaeger, Redwood City, CA (US);
Timothy G. Dietz, Fremont, CA (US);
Bob H. Katz, Los Gatos, CA (US);
Symphonix Devices, Inc., San Jose, CA (US);
Abstract
A dual coil floating mass transducer for assisting a person's hearing is provided. Inertial vibration of the housing of the floating mass transducer produces vibrations in the inner ear. A magnet is disposed within the housing biased by silicone springs so that friction is reduced between the magnet and the interior surface of the housing. Two coils reside within grooves in the exterior of the housing which cause the magnet to vibrate when an electrical signal is applied to the coils.