公开(公告)号：US10950217B1

公开(公告)日：2021-03-16

申请号：US15839472

申请日：2017-12-12

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Jianchun Dong ,  Xuan Zhong ,  Chun Sik Jeong ,  Zhen Xu ,  Chung-Ling Hsu ,  Jung Sik Yang

IPC: G10K11/178 ,  G02B27/01 ,  H04R1/10 ,  H04R1/46

Abstract: A head-mounted wearable device (HMWD) provides audio output using acoustic quadrupole units (AQU). The AQU produces an acoustic pattern having a first region and a second region. The first region has a first phase and the second region has a second phase that is opposite the first phase. A major axis extending through the regions is directed generally upwards from the ear canal of the user. The ear of the user is within the first region. The second region is directed upward. Bystanders are within an acoustically null region of the acoustic pattern. The acoustically null region is perpendicular to the major axis. Within the acoustically null region, the sound intensity is reduced due to destructive interference between the first phase and the second phase. As a result, the user wearing the HMWD is able hear audio output while audio amplitude perceived by the bystanders is significantly reduced.

公开(公告)号：US10904667B1

公开(公告)日：2021-01-26

申请号：US15925511

申请日：2018-03-19

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Xuan Zhong ,  Yuna Hu ,  Chun Sik Jeong ,  Zhen Xu ,  Jung Sik Yang ,  Shahram Talakoub ,  Jianchun Dong

IPC: H04R5/033 ,  H04R5/04 ,  G02C11/00

Abstract: A head-mounted wearable device (HMWD) with a form factor of eyeglasses incorporates a compact audio module with transducers that may be operated as an acoustic dipole or acoustic quadrupole. The audio module provides ducts that convey sound with a particular phase from a transducer to particular output ports. The phase of sound emitted from a first output port is opposite to the phase of sound emitted from a second output port. The audio module may include a pair of transducers, enabling operation as an acoustic dipole or quadrupole. The ducts are integrated into elements of the structure of the audio module, minimizing the overall size of the audio module.

公开(公告)号：US10659868B1

公开(公告)日：2020-05-19

申请号：US15472038

申请日：2017-03-28

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Zhen Xu ,  Chun Sik Jeong ,  Han Zhang ,  Jung Sik Yang ,  Xuan Zhong ,  Jianchun Dong ,  Niranjan Madan Mohan Bhatia

IPC: H04R25/00 ,  H04R1/10 ,  G02C11/00 ,  G02B27/01

Abstract: A head-mounted wearable device (HMWD) may be fashioned that includes temples that pass near each ear of the user. A temple may incorporate a bone conduction speaker (BCS) to provide audio output to the user. During wear, a portion of the BCS is in physical contact with a head of the user to transfer the vibrations from the BCS to the user. To accommodate different head shapes and sizes, a head contact piece may be mounted to the BCS. The user may add, remove, or swap the head contact piece from an assortment of such pieces to find a profile that is comfortable to the wearer and improves performance of the BCS. The head contact piece may be magnetically affixed, allowing for easy changeout.

公开(公告)号：US10701480B1

公开(公告)日：2020-06-30

申请号：US15386164

申请日：2016-12-21

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Jung Sik Yang ,  Xuan Zhong ,  Jianchun Dong ,  Zhen Xu

IPC: H04R9/06 ,  H04R1/46 ,  H04R1/28 ,  H04R1/02 ,  G02B27/01 ,  G02C11/00 ,  G02C5/18 ,  G02C5/14

Abstract: A head-mounted wearable device (HMWD) includes a plurality of microphones. These microphones may be used to acquire audio data produced by the user, such as speech, or sound from the ambient environment. In one implementation, a first air conduction (AC) microphone is emplaced at a bridge of the nose of the HMWD, a second AC microphone at a hinge, and a bone conduction (BC) microphone is positioned at a distal end of one of the temples of the HMWD. For example, the BC microphone may be located in the left temple proximate to the apex of the user's ear. A semi-rigid structure may provide mechanical coupling between the user's head and the BC microphone.

公开(公告)号：US11409130B1

公开(公告)日：2022-08-09

申请号：US15912127

申请日：2018-03-05

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Chun Sik Jeong ,  Jung Sik Yang ,  Niranjan Madan Mohan Bhatia ,  Yuna Hu ,  Jianchun Dong ,  Zhen Xu ,  Han Zhang

IPC: G02C5/22 ,  G02C11/00 ,  G02B27/01 ,  G02C5/14 ,  G02C13/00

Abstract: A head-mounted wearable device (HMWD) with a form factor of eyeglasses incorporates hinges between a front frame and temples. The hinges provide a fully enclosed passage for a flexible printed circuit (FPC). The FPC allows electrical connectivity between devices in the front frame and in the temple. The hinge includes a cam device that provides a biasing force that allows the temples to remain in one of four configurations: closed, transit, neutral, and maximum neutral. When in the transit configuration the biasing force provided by the cam device tends to move the temples towards the closed configuration. When in the maximum neutral configuration the biasing force provided by the cam device tends to move the temples towards the neutral configuration. During use, this biasing of the temples provides a gentle clamping force that assists in maintaining the HMWD on the user's head.

公开(公告)号：US10747026B1

公开(公告)日：2020-08-18

申请号：US15472000

申请日：2017-03-28

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Han Zhang ,  Zhen Xu ,  Xuan Zhong ,  Eliot Kim ,  Chung-Ling Hsu ,  Jianchun Dong ,  Jung Sik Yang

IPC: G02C11/00 ,  G02C5/14 ,  H04R1/02

Abstract: A head-mounted wearable device (HMWD) may be fashioned that includes temples that pass near each ear of the user. To accommodate different head shapes and sizes, a head contact piece may be mounted to the temple. Head contact pieces with different profiles may be used to improve user comfort, aid in retaining the HMWD on the user's head, improve performance of output devices such as bone conduction speakers, and so forth.

公开(公告)号：US10699691B1

公开(公告)日：2020-06-30

申请号：US15637532

申请日：2017-06-29

Applicant: Amazon Technologies, Inc.

Inventor： Geng Ye ,  Zhen Xu ,  Haoxing Zhang ,  Bozhao Tan ,  Xuan Zhong ,  Jianchun Dong

IPC: G10K11/178 ,  H04R3/00 ,  G02B27/01 ,  G02C5/14 ,  G02C11/00 ,  G02C5/22

Abstract: A head-mounted wearable device (HMWD) may incorporate bone conduction speakers (BCS) to generate audio output that is perceptible to a wearer. During operation, vibrations of the BCS may produce sound in the surrounding air that is perceptible to bystanders. An active noise cancellation module monitors the output and generates cancellation audio that is out of phase with the sound leaked by the BCS. An air conduction speaker emits the cancellation audio, producing destructive acoustic interference to the leaked sound. As a result, the user of the HMWD is able to hear audio clearly while bystanders are not.

公开(公告)号：US10582295B1

公开(公告)日：2020-03-03

申请号：US15385757

申请日：2016-12-20

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Xuan Zhong ,  Jung Sik Yang ,  Zhen Xu ,  Chun Sik Jeong ,  Jianchun Dong ,  Han Zhang

IPC: H04R1/02 ,  H04R1/28 ,  H04R17/00 ,  H04R1/46 ,  G02B27/01

Abstract: A head-mounted wearable device (HMWD) includes a bone conduction speaker (BCS) to provide audio output to a user wearing the HMWD. The BCS may be mounted within a recess of a temple of the HMWD. During wear a portion of the BCS is in physical contact with a head of the user. In one implementation, a head contact piece may be mounted to the side of the BCS that is proximate to the head. The head contact piece is contoured to maximize the contact area with the head, and may have a cross section that is approximately wedge shaped, with a thicker portion of the wedge proximate to the front of the HMWD. The BCS may include low damping elements to provide protection to the BCS from damage and improve performance, as well as high damping elements to reduce the transfer of vibrations from the BCS to the temple.