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:
Apr. 08, 2014
Filed:
Mar. 26, 2012
Applicants:
Chun-yi Lin, New Taipei, TW;
Yoichiro Sumitani, Rancho Palos Verdes, CA (US);
Inventors:
Chun-Yi Lin, New Taipei, TW;
Yoichiro Sumitani, Rancho Palos Verdes, CA (US);
Assignee:
Sound Systems Technology, Inc., Torrance, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 9/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A coaxial loudspeaker for reproducing an electrical sound signal is provided. The loudspeaker has a magnetic driver assembly with a first annular slot and an opposed, coaxial second annular slot, each establishing a permanent magnetic field therein from a single magnet. Independently driven first and second voice coils are positioned within the respective one of the first and second annular slots, each being connected to a transducer element.