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. 24, 1984
Filed:
Dec. 28, 1981
David N Leiendecker, Milford, MI (US);
Wayne M Schott, Concord, TN (US);
Magnavox Consumer Electronics Company, New York, NY (US);
Abstract
A loudspeaker system (10) having improved directional and frequency response characteristics for use in connection with a sound system having at least two speakers such as a stereo system which is provided. The loudspeaker system includes a driver (14) for low frequencies and/or a full range of frequencies. This driver includes an electroacoustic transducer unit and a sound radiating face having a dustcap (16) and a diaphragm (36). A dispersion control member (34) is positioned at a preselected location such that it overlays a preselected portion of the sound radiating face of the speaker to enhance its directional characteristics. In this connection, the dispersion control member (34) comprises a layer of acoustical, semi-transparent foam having a preselected cross-sectional outline which preferably terminates in one substantially straight edge (38). This member (34) is positioned such that its edge (38) is substantially aligned with the imaginary vertical center line of the sound radiating face thereby expanding the area of stereo imagery such that a listener can be positioned at various locations within the area in front of the speakers and still enjoy the full stereo effect.