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:
Jun. 29, 1999
Filed:
Oct. 19, 1995
Gerald F Caron, Andover, MA (US);
Rakesh C Pandey, Natick, MA (US);
Ricardo F Carreras, Southborough, MA (US);
Osman K Isvan, Wayland, MA (US);
Dorie A Sabol, Boston, MA (US);
Charles Ralph Barker, III, Harvard, MA (US);
Thomas C Schroeder, Farmingham, MA (US);
Bose Corporation, Framingham, MA (US);
Abstract
A loudspeaker system includes an upper frequency assembly that radiates acoustical energy having spectral components in the audio frequency range above a predetermined upper frequency, typically at the high end of the bass frequency range between 150 and 200 Hz. The assembly includes a ported enclosure with a front face enclosing a loudspeaker driver with a cone adjacent to the front face of diameter slightly less than at least one of the height and width of the enclosure.