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.:

US 9344783 B1

PDF
Full Text
Expired
Date of Patent:
May. 17, 2016

Filed:

Jun. 12, 2014
Applicants:

Philip R. Clements, Tempe, AZ (US);

Boaz Shalev, Needham, MA (US);

James Joseph Croft, Iii, Bellevue, WA (US);

Inventors:

Philip R. Clements, Tempe, AZ (US);

Boaz Shalev, Needham, MA (US);

James Joseph Croft, III, Bellevue, WA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 1/02 (2006.01); H04R 1/28 (2006.01); H04R 1/34 (2006.01);
U.S. Cl.
CPC ...
H04R 1/02 (2013.01); H04R 1/2888 (2013.01); H04R 1/2857 (2013.01); H04R 1/2861 (2013.01); H04R 1/2865 (2013.01); H04R 1/345 (2013.01); H04R 2440/03 (2013.01);
Abstract

In a low frequency transducer system a multi-compression chamber, an inverse horn structure is employed in combination with a resonance-distortion filter chamber. The filter chamber effectively expands the effective enclosure volume at low frequencies and connected to one of the compression chambers filter parasitic resonances and distortion and allowing the system to more efficiently reproduce low frequencies while being able to use smaller diameter transducers and maintaining good system sensitivity. Compression chambers are organized for constant or continuous compression on a section-by-section basis throughout the inverse horn system.


Find Patent Forward Citations

Clements, Philip. (2016). Inverse horn loudspeakers (U.S. Patent No. 9344783). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9344783

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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