Doppler Labs, Inc.

Dopler Labs, Inc.

Dan Wiggins

Noah Kraft

Jonathan Oswaks

Richard Fritz Lanman, Iii

Nils Jacob Palmborg

Richard Fritz Lanman

James Dexter Tickle

Jeff Baker

Anthony Parks

Matthew Fumio Yamamoto

Sal Gregory Garcia

Thomas Ezekiel Burgess

Chris Caronna

There is disclosed active acoustic filter systems and methods. A processor is disposed within a housing configured to interface with a user's ear. A memory stores data defining one or more locations and a respective set of location-based processing parameters associated with each of the one or more locations. A personal computing device external to the housing is coupled to the processor via a first wireless communications link. The personal computing device determines a current location of the active acoustic filter system. The processor generates digitized processed sound by processing digitized ambient sound in accordance with a set of location-based processing parameters retrieved from the memory, the retrieved set of location-based processing parameters associated with the current location of the active acoustic filter system as determined by the personal computing device.

Active acoustic filter with location-based filter characteristics

A passive acoustical filter includes a first opening to receive ambient sound, a second opening to output filtered sound, and a first low pass filter element coupled between the first opening and the second opening. The first low pass filter element includes a first expansion chamber filled with a material in which a speed of sound is lower than a speed of sound in air.

Passive acoustical filters with filled expansion chamber

Non-occluding active noise suppression apparatus and methods are disclosed. A housing includes an inlet to admit ambient sound and an outlet to output personal sound to the ear of a user. An acoustic path and an electronic path are provided from the inlet to the outlet within the housing. For a predetermined frequency range, a phase difference between the acoustic path and the electronic path is substantially 180 degrees.

Apparatus and method for non-occluded active noise shaping

Active acoustic filter with socially determined location-based filter characteristics

There is disclosed a passive acoustical filter including two or more filter elements coupled between an ambient and a listener's ear, each of the filter elements selected from the group consisting of a low pass filter element, a high pass filter element, a band reject filter element, and a band pass filter element.

Passive audio ear filters with multiple filter elements

There is disclosed a passive acoustical filter including a first filter element coupled between an ambient and an ear of a listener, at least a portion of the first filter element filled with a material in which a speed of sound is lower than a speed of sound in air.

Passive acoustical filters incorporating inserts that reduce the speed of sound

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Montecito, CA, United States of America

Dan Wiggins