Ulrich J Horbach

7336793, Feb 26, 2008

May 8, 2003

10/434448

Ulrich Horbach - Agoura Hills CA, US
Etienne Corteel - Paris, FR

Harman International Industries, Incorporated - Northridge CA

H04R 29/00
H04R 25/00
H03G 5/00
H03B 29/00

381 59, 381 56, 381 58, 381152, 381103, 381 712

A sound system obtains a desired sound field from an array of sound sources arranged on a panel. The desired sound field allows a listener to perceive the sound as if the sound were coming from a live source and from a specified location. Setup of the sound system includes arranging a microphone array adjacent the array of sound sources to obtain a generated sound field. Arbitrary finite impulse response filters are then composed for each sound source within the array of sound sources. Iteration is applied to optimize filter coefficients such that the generated sound field resembles the desired sound field so that multi-channel equalization and wave field synthesis occur. After the filters are setup, the microphones may be removed.

7991170, Aug 2, 2011

May 5, 2005

11/123449

Ulrich Horbach - Agoura Hills CA, US

Harman International Industries, Incorporated - Northridge CA

H03G 5/00

381 99, 381 98

A method is provided for computing frequency responses of crossover filters for multi-way loudspeakers. The method prescribes driver coordinates for drivers in the multi-way loudspeaker, prescribes an attenuation function for the sound pressure level at a desired angle, computes the crossover frequencies using a point source model and computes the frequency responses in intervals defined by the crossover frequencies.

8121312, Feb 21, 2012

Mar 14, 2007

12/293062

Ulrich Horbach - Canyon Country CA, US
Ashish Aggarwal - Santa Clarita CA, US
Pedro Manrique - Pasadena CA, US

Harman International Industries, Incorporated - Northridge CA

H03G 5/00

381 99, 381103, 330157

A Wide-band Equalization System (“WBES”) based on near- and far-field measurement data. The WBES includes a subwoofer equalizer having an FIR filter together with decimator and interpolator filters for processing low frequency signals. The WBES may also include satellite channels for processing mid- and high-frequency signals, where each satellite channel includes cascaded IIR filters that process mid-frequency and high-frequency signals, respectively. The WBES may also include a DSP that performs the functions required by the IIR and FIR filters.

8126172, Feb 28, 2012

Dec 6, 2007

11/951964

Ulrich Horbach - Canyon Country CA, US
Eric Hu - Los Angeles CA, US
Stefan Finauer - Anzing, DE
Yi Zeng - Thousand Oaks CA, US

Harman International Industries, Incorporated - Northridge CA

H04R 5/02
H04R 5/04
H04R 5/00

381303, 381307

A spatial processing stereo system (“SPSS”) that receives audio signals and a limited number of user input parameters associated with the spatial attributes of a room, such as “room size”, “stage distance”, and “stage width”. The input parameters are used to define a listening room and generate coefficients, room impulse responses, and scaling factors that are used generate additional surround signals.

8160268, Apr 17, 2012

Sep 8, 2004

10/935929

Ulrich Horbach - Agoura Hills CA, US

Harman International Industries, Incorporated - Northridge CA

H04R 1/02
H03G 5/00

381 89, 381 99

The invention is a multi-channel loudspeaker system that provides a compact loudspeaker configuration and filter design methodology that operates in the digital signal processing domain. Further, the loudspeaker system can be designed as a multi-way loudspeaker system comprised of a symmetric arrangement of loudspeaker drivers in a two-dimensional plane and can achieve high-quality sound, constant directivity over a large area in both the vertical and horizontal planes and can be used in connection with stereo loudspeaker systems, multi-channel home entertainment systems and public address systems.

8170233, May 1, 2012

Feb 2, 2004

10/771190

Ulrich Horbach - Agoura Hills CA, US

Harman International Industries, Incorporated - Northridge CA

H04R 1/02
H03G 5/00

381 89, 381 99

The invention is a multi-channel loudspeaker system that provides a compact loudspeaker configuration and filter design methodology that operates in the digital signal processing domain. Further, the loudspeaker system can be designed to include drivers of various physical dimensions and can achieve prescribed constant directivity over a large area in both the vertical and horizontal planes.

8194868, Jun 5, 2012

Jan 3, 2008

11/969149

Ulrich Horbach - Agoura Hills CA, US
Etienne Corteel - Paris, FR

Harman International Industries, Incorporated - Northridge CA

H04R 29/00
H04R 25/00
H03G 5/00
H03B 29/00

381 59, 381 56, 381 58, 381152, 381103, 381 712

A sound system obtains a desired sound field from an array of sound sources arranged on a panel. The desired sound field allows a listener to perceive the sound as if the sound were coming from a live source and from a specified location. Setup of the sound system includes arranging a microphone array adjacent the array of sound sources to obtain a generated sound field. Arbitrary finite impulse response filters are then composed for each sound source within the array of sound sources. Iteration is applied to optimize filter coefficients such that the generated sound field resembles the desired sound field so that multi-channel equalization and wave field synthesis occur. After the filters are setup, the microphones may be removed.

8217718, Jul 10, 2012

Sep 17, 2010

12/885141

Ulrich Horbach - Canyon Country CA, US
Armando Martinez - Castaic CA, US

Harman International Industries, Incorporated - Northridge CA

H03F 3/217

330251, 330207 A

A simplistic low cost circuit that generates the necessary drive voltage for use in a source follower totem pole power switching circuit is described where the simplified gate drive circuit may have a dual charge pump and a complementary pair of low-power switching Mosfets.