1
Steven J Eberbach: Surround sound loudspeaker system. James M Deimen, September 15, 1998: US05809150 (36 worldwide citation)

The generation of skewed hypercardioid sound energy fields (in polar diagrams) from right front and left front "surround" loudspeakers with the principal nulls directed at the expected listener location produces the effect of sidewall and rearwall loudspeakers in a home theater setting without any a ...


2
Steven J Eberbach: Surround sound loudspeaker system. Howard Krausse, James M Deimen, August 15, 2006: US07092541 (17 worldwide citation)

A single loudspeaker has a substantially single-point source of sound energy derived from multiple drivers to provide a surround sound effect. The surround sound is effective for listeners close to the single loudspeaker or substantially distant within a room. The physical size of the loudspeaker is ...


3
Katsu Takeda, Fumiyasu Konno, Susumu Fukushima, Rihito Shoji: Sound reproduction device. PANASONIC INTELLECTUAL PROPERTY MANAGEMENT, McDermott Will & Emery, August 22, 2017: US09743186

Provided is a sound reproduction device including a loudspeaker and a superdirective speaker. The loudspeaker is configured so that a sound pressure of audible sound produced therefrom decreases as the sound travels farther away from the loudspeaker. The superdirective speaker is configured so that ...


4
Bradley M Starobin: Single enclosure surround sound loudspeaker system and method. J Andrew McKinney Jr, McKinney & Associates, November 10, 2015: US09185490

A single enclosure loudspeaker system projects multi-channel surround sound into a listener's room, and so replaces multiple conventional surround channel loudspeakers. The loudspeaker system includes a pair of opposing multi transducer arrays oriented laterally toward walls or reflecting surfaces ( ...


5
Bradley M Starobin: Single enclosure surround sound loudspeaker system and method. May 17, 2012: US20120121092-A1

A single enclosure loudspeaker system projects multi-channel surround sound into a listener's room, and so replaces multiple conventional surround channel loudspeakers. The loudspeaker system includes a pair of opposing multi transducer arrays oriented laterally toward walls or reflecting surfaces ( ...


6
SURROUND SPEAKER. November 17, 2016: US20160337755-A1

The present invention provides a surround sound loudspeaker system and a surround sound speaker system housing. The system comprises a first loudspeaker, a second loudspeaker. The first speaker and the second speaker are switchable between a first mode and a second mode. The surround sound speaker s ...



Click the thumbnails below to visualize the patent trend.