公开(公告)号：US20210250675A1

公开(公告)日：2021-08-12

申请号：US17169317

申请日：2021-02-05

Applicant: DSP Group Ltd.

Inventor： Gabriel Seiden

IPC: H04R1/10 ,  H04R29/00

Abstract: A method for in-ear detection, the method may include transmitting test signals, by a speaker of an earbud, during a test period, and while the earbud is operating at a first operational mode, wherein the test signals comprise at least one first test signal within a first frequency range, at least one second test signal within a second frequency range, and at one third test signal within a third frequency range; wherein the first frequency range, the second frequency range and the third frequency range differ from each other and are within a human auditory range; generating, by a feedback microphone of the earbud, sensed information that is indicative of audio signals sensed by the feedback microphone as a result of the transmitting of the test signals; and determining whether the earbud is located within an ear of a person, wherein the determining is based on the sensed information and a reference out of ear spectrum.

公开(公告)号：US20200236469A1

公开(公告)日：2020-07-23

申请号：US16525919

申请日：2019-07-30

Applicant: DSP Group Ltd.

Inventor： HAIM KUPERSCHMIDT ,  Gabriel Seiden ,  Igor Sokolov

IPC: H04R19/02 ,  H04R19/01 ,  H04R7/04 ,  B81C1/00

Abstract: A micro-electro-mechanical system (MEMS) electrostatic speaker that comprises an array of cells, wherein each cell comprises an upper stator, a membrane, a lower stator and supporting elements configured to support the upper stator, the membrane and the lower stator; wherein a distance between the upper stator and the lower stator of each cell is of microscopic scale.

公开(公告)号：US11671741B2

公开(公告)日：2023-06-06

申请号：US17936218

申请日：2022-09-28

Applicant: DSP Group Ltd.

Inventor： Gabriel Seiden

IPC: H04R1/10 ,  H04R29/00

CPC classification number: H04R1/1041 ,  H04R29/00 ,  H04R2201/109 ,  H04R2400/01

Abstract: A method for in-ear detection, the method may include transmitting test signals, by a speaker of an earbud, during a test period, and while the earbud is operating at a first operational mode, wherein the test signals comprise at least one first test signal within a first frequency range, at least one second test signal within a second frequency range, and at one third test signal within a third frequency range; wherein the first frequency range, the second frequency range and the third frequency range differ from each other and are within a human auditory range; generating, by a feedback microphone of the earbud, sensed information that is indicative of audio signals sensed by the feedback microphone as a result of the transmitting of the test signals; and determining whether the earbud is located within an ear of a person, wherein the determining is based on the sensed information and a reference out of ear spectrum.

公开(公告)号：US11503398B2

公开(公告)日：2022-11-15

申请号：US17169317

申请日：2021-02-05

Applicant: DSP Group Ltd.

Inventor： Gabriel Seiden

IPC: H04R1/10 ,  H04R29/00

Abstract: A method for in-ear detection, the method may include transmitting test signals, by a speaker of an earbud, during a test period, and while the earbud is operating at a first operational mode, wherein the test signals comprise at least one first test signal within a first frequency range, at least one second test signal within a second frequency range, and at one third test signal within a third frequency range; wherein the first frequency range, the second frequency range and the third frequency range differ from each other and are within a human auditory range; generating, by a feedback microphone of the earbud, sensed information that is indicative of audio signals sensed by the feedback microphone as a result of the transmitting of the test signals; and determining whether the earbud is located within an ear of a person, wherein the determining is based on the sensed information and a reference out of ear spectrum.

公开(公告)号：US11153690B2

公开(公告)日：2021-10-19

申请号：US16525919

申请日：2019-07-30

Applicant: DSP Group Ltd.

Inventor： Haim Kuperschmidt ,  Gabriel Seiden ,  Igor Sokolov ,  Aviad Zamir

IPC: H04R19/02 ,  B81C1/00 ,  H04R7/04 ,  H04R19/01

Abstract: A micro-electro-mechanical system (MEMS) electrostatic speaker that comprises an array of cells, wherein each cell comprises an upper stator, a membrane, a lower stator and supporting elements configured to support the upper stator, the membrane and the lower stator; wherein a distance between the upper stator and the lower stator of each cell is of microscopic scale.