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：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.