Resources Contact Us Home
Ceiling or wall-mounted loudspeaker system with anti-diffraction wave launch device

Image Number 3 for United States Patent #8014545.

A loudspeaker system includes an enclosure having an open end defining a plane, a baffle, a loudspeaker operating in the 4 kHz to 10 kHz range, and a device, preferably a ribbed portion having a plurality of grooves, coupled to the baffle for modifying the spectral profile of the projected sound waves. The baffle includes first and second angled surfaces each oriented at an oblique angle with respect to the plane. The speaker is coupled to the first angled surface and the ribbed portion is coupled to the baffle along the intersection of the first angled surface and the second angled surface. When mounted in a wall or ceiling, the system projects a sound field substantially indistinguishable from that of a loudspeaker located within the listener's listening plane. The baffle can also have acoustic damping material attached thereto, with grooves formed therein, to prevent reflections of 4 kHz to 10 kHz sound.

  Recently Added Patents
Method and apparatus for an active low power mode of a portable computing device
Polymer bonded fibrous coating on dipped rubber articles skin contacting external surface
Nonvolatile semiconductor memory device and method for controlling the same
Pressure washer
Anti-proliferative and anti-inflammatory agent combination for treatment of vascular disorders with an implantable medical device
Light emitting device
Power converter and method including noise suppression by controlling phase shifting of converter cells
  Randomly Featured Patents
Printing apparatus including error correction and memory means, for printing vertical and horizontal form lines
Method and system for generating digital video broadcast (DVB) transport stream from direct satellite system (DSS) transport stream
Electric tooth brush
RNA antagonist compounds for the modulation of PIK3CA expression
Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers
Fiber optic connector having low cost ferrule
Substituted 1,2,3,4-tetrahydrocyclopent[b]indoles, compositions and use
Fuel tank in particular a plastic fuel tank
Apparatus for stretching and linking a vertical blind slat-cloth
Electronic input device for use with steel pans and associated methods