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: Electroacoustic network. Howard Krausse, James M Deimen, September 6, 1988: US04769848 (21 worldwide citation)

Disclosed is a passive delay network for insertion in the high frequency signal path of a crossover network in a high fidelity loudspeaker. The delay network provides means to adjust the optimum listening window electrically rather than by changes in the physical construction of the speaker cabinet. ...


3
Steven J Eberbach: Single and double symmetric loudspeaker driver configurations. Howard Krausse, James M Deimen, December 5, 1989: US04885782 (19 worldwide citation)

New loudspeaker driver configurations comprise positioning the high frequency driver between symmetrically located lower frequency drivers and providing in combination electrical or acoustical delay to the high frequency driver relative to the lower frequency drivers. The lower frequency drivers are ...


4
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 ...


5
Steven J Eberbach: Dihedral loudspeakers with variable dispersion circuits. James M Deimen, September 1, 1987: US04691362 (14 worldwide citation)

A dihedral loudspeaker for use in mirror image stereophonic loudspeaker systems combines a pair of coaxial drivers with variable dispersion circuits and a high frequency delay network. The variable dispersion circuits decrease the amplitude of the electric signal to the indirect or ambient firing co ...


6
Steven J Eberbach: Speaker cross-over networks. James M Deimen, February 9, 1982: US04315102 (13 worldwide citation)

The invention comprises improved electroacoustic audio speaker cross-over networks. The improvements comprise both the addition of various passive elements and a novel inductively coupled circuit configuration. The improvements are applied to low pass and high pass networks and combinations thereof. ...


7
Steven J Eberbach: Dihedral loudspeakers with variable dispersion circuits. James M Deimen, March 25, 1986: US04578809 (13 worldwide citation)

A dihedral loudspeaker for use in mirror image stereophonic loudspeaker systems combines a pair of coaxial drivers with variable dispersion circuits and a high frequency delay network. The variable dispersion circuits decrease the amplitude of the electric signal to the indirect or ambient firing co ...


8
Steven J Eberbach: Electroacoustic network. James M Deimen, December 20, 1983: US04421949 (8 worldwide citation)

Disclosed is a passive delay network for insertion in the high frequency signal path of a crossover network in a high fidelity loudspeaker. The delay network provides means to adjust the optimum listening window electrically rather than by changes in the physical construction of the speaker cabinet. ...


9
Steven J Eberbach: Loudspeaker crossover delay equalization. James M Deimen, February 7, 1984: US04430527 (3 worldwide citation)

Electric circuitry to correct for spurious sound pressure responses of audio transducers is disclosed. In particular, electric circuitry to compensate for "pre-shoot" of an audio transducer system is disclosed. The circuitry includes a delay line electric circuit carrying the bulk of the electric si ...


10


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