公开(公告)号：US20230251429A1

公开(公告)日：2023-08-10

申请号：US17666731

申请日：2022-02-08

Applicant: Goertek Inc.

Inventor： Lingshan Li

IPC: G02B6/34 ,  G02B5/30 ,  G02B5/18

CPC classification number: G02B6/34 ,  G02B5/3016 ,  G02B5/1866

Abstract: A polarization volume grating, an optical waveguide system and an electronic device are disclosed. Parameters of the polarization volume grating satisfy with those derived by performing a multivariable optimization algorithm on a merit function of ƒk(d1,ϕ1,d2,ϕ2, . . . , dm,ϕm,d)=[1−η1(θ,ψ)]2, wherein the parameters include d1,ϕ1,d2,ϕ2, . . . , dm,ϕm, where m=1, 2, 3, . . . , and d, m is the number of layers of the polarization volume grating, dm is a thickness of mth layer, ϕm is a twist angle in mth layer, and d is a period of the polarization volume grating, k represents a central wavelength on which the multivariable optimization algorithm is performed, θ represents a polar angle of an incident light, ψ represents an azimuth angle of the incident light, and η1(θ,ψ) represents a first-order diffraction efficiency of the polarization volume grating.

公开(公告)号：US20230239631A1

公开(公告)日：2023-07-27

申请号：US17999887

申请日：2020-11-07

Applicant: GOERTEK INC.

Inventor： Chunfa LIU ,  Jianbin YANG ,  Jianxin WANG ,  Shousong QIANG

IPC: H04R9/06 ,  H04R9/02 ,  H04R9/04 ,  H04R1/28

CPC classification number: H04R9/06 ,  H04R9/025 ,  H04R9/046 ,  H04R1/288

Abstract: Disclosed in the present disclosure are a sound production apparatus and an electronic device. The sound production apparatus comprises a holder, a vibration unit, an elastic member, and a damping member, wherein the elastic member connects the holder and the vibration unit, and the damping member is disposed on the elastic member. The technical solution of the present disclosure aims at preventing the elastic member from resonating with the vibration unit, thereby ensuring the vibration trajectory of the vibration unit, and ensuring the operation stability of the sound production apparatus.

公开(公告)号：US20230236663A1

公开(公告)日：2023-07-27

申请号：US18011004

申请日：2020-11-25

Applicant: GOERTEK INC.

Inventor： Xin LIU ,  Bin JIANG ,  Xiaoyu CHI

IPC: G06F3/01 ,  G06F3/14

CPC classification number: G06F3/012 ,  G06F3/14

Abstract: A data acquisition method and apparatus for a head-mounted display device, a host and a head-mounted display device are provided. The method includes: acquiring user head posture information collected by a head posture sensor; determining a predicted head position at a next rendering moment based on the user head posture information and a current display scene of the head-mounted display device; and acquiring a current video rendering corresponding to the current rendering moment based on the predicted head position and video data at the current rendering moment, in order that the head-mounted display device displays a rendered video at the current rendering moment and a target time warped frame, where the current video rendering includes the rendered video and one or more time warped frames for the next rendering moment, and the target time warped frame is one of the one or more time warped frames.

公开(公告)号：US20230228820A1

公开(公告)日：2023-07-20

申请号：US17996450

申请日：2020-12-15

Applicant: GOERTEK INC.

Inventor： Kai LIU ,  Wenfeng LI

IPC: G01R31/36 ,  G01R31/388 ,  H01M10/48 ,  G01R31/3842

CPC classification number: G01R31/3646 ,  G01R31/388 ,  H01M10/488 ,  G01R31/3842

Abstract: A battery capacity display method and device, electronic equipment and a computer-readable storage medium are disclosed. The method comprises: judging whether a battery to be detected can be fully charged when the battery to be detected is in a constant voltage charging state (S101); if not, determining a current capacity state of the battery to be detected and monitoring a time duration of the battery to be detected under the current capacity state (S102); judging whether the time duration is greater than a corresponding preset overtime threshold (S103); and if the time duration is greater than the preset overtime threshold, displaying full capacity via a UI interface (S104).

公开(公告)号：US20230213756A1

公开(公告)日：2023-07-06

申请号：US17566019

申请日：2021-12-30

Applicant: Goertek Inc.

Inventor： LINGSHAN LI

IPC: G02B27/00 ,  G02B27/01 ,  G02B27/42 ,  G02B6/293

CPC classification number: G02B27/0081 ,  G02B27/0172 ,  G02B27/4205 ,  G02B6/29323

Abstract: An optical display system and an augmented reality electronic device are disclosed. The optical display system comprises: a waveguide; an input coupler, provided at the input end of the waveguide and couples an image light into it; and a two-dimensional grating, provided at the output end of waveguide. The waveguide delivers the image light to the two-dimensional grating, which performs pupil expansion on the image light and out-couples the expanded image light. The two-dimensional grating has rhombus lattices. Unit cells of the two-dimensional grating are un-symmetric along respective axes parallel with a propagation direction of the image light incident onto the two-dimensional grating, from a top view of the two-dimensional grating. The unit cells are oriented with the propagation direction of the image light and each of the unit cells has at least two vertexes at its end side.

公开(公告)号：US11688163B2

公开(公告)日：2023-06-27

申请号：US17439719

申请日：2020-10-24

Applicant: GOERTEK INC.

Inventor： Xiufeng Song

IPC: G06V20/17 ,  G06V20/40 ,  G06V10/771 ,  G06V10/82 ,  B64C39/02 ,  B64U101/30

CPC classification number: G06V20/17 ,  B64C39/024 ,  G06V10/771 ,  G06V10/82 ,  G06V20/49 ,  B64U2101/30 ,  G06V2201/07

Abstract: A target recognition method and device based on a MASK RCNN network model are disclosed. The method comprises: determining a multi-stage network as a basic network; selecting at least one intermediate layer capable of extracting a feature map from the basic network, and inputting respectively a feature map output by the intermediate layer and a feature map output by an end layer of the basic network to corresponding MASK RCNN recognition networks to construct a network model based on the MASK RCNN, wherein the feature map output by the intermediate layer and the feature map output by the end layer have different sizes; training the MASK RCNN recognition networks with a data set and stopping training until a preset training end condition is satisfied; and recognizing the target using the MASK RCNN recognition networks after trained. This solution is very suitable for small target recognition of a flying UAV.

公开(公告)号：US20230179903A1

公开(公告)日：2023-06-08

申请号：US17997304

申请日：2020-10-29

Applicant: GOERTEK INC.

Inventor： Tao LI

IPC: H04R1/10 ,  H04L47/50

CPC classification number: H04R1/1041 ,  H04L47/50 ,  H04R1/1025 ,  H04R2420/07

Abstract: A communication method between earphones and a charging box is disclosed. The method comprises: acquiring a data packet to be sent from a sending queue; sending a data request message containing the data packet to be sent to the earphones; and when having received a reply message from the earphones, continuing to execute the step of acquiring a data packet to be sent from the sending queue until the sending queue is empty. In the communication method between earphones and a charging box of the present disclosure, when data is transmitted between the charging box and the earphones, the data transmission between the charging box and the earphones can be realized without switching the master-slave relationship between the charging box and the earphones, which is simple to realize and reduces the additional communication burden.

公开(公告)号：US11650676B2

公开(公告)日：2023-05-16

申请号：US17473301

申请日：2021-09-13

Applicant: GOERTEK INC.

Inventor： Shumin Zhou ,  Li Ding ,  Haipeng Zhou ,  Xiaochen Wang ,  Ke Dong

IPC: G06F3/0362 ,  G06F3/04847 ,  G06F3/0487

CPC classification number: G06F3/0362 ,  G06F3/0487 ,  G06F3/04847

Abstract: Disclosed is a control method for an audio device, the audio device includes a playing component and a display screen rotatably connected to the playing component, and the control method for the audio device includes the following steps: in response to detecting rotation of the display screen, acquiring a first rotation direction and a first rotation angle of the display screen in a preset three-dimensional coordinate system; determining a second rotation direction and a second rotation angle of display content on the display screen according to the first rotation direction and the first rotation angle, where the first rotation direction is opposite to the second rotation direction, and a difference between the second rotation angle and the first rotation angle is less than or equal to a preset value; and adjusting a display orientation of the display content according to the second rotation direction and the second rotation angle.

公开(公告)号：US11622616B2

公开(公告)日：2023-04-11

申请号：US17433200

申请日：2019-12-04

Applicant: GOERTEK INC.

Inventor： Xingyu Li ,  Xiaodong Liu ,  Xiangxiang Liu ,  Jinfeng Li

IPC: A44C5/00 ,  A45C11/00 ,  H04R1/10 ,  A45F5/00

Abstract: A wrist-worn device is provided, which includes a device main body and an earphone. An accommodating groove for placing the earphone is provided on the device main body, a key is slidably mounted on one of the device main body and fee earphone. A clamping groove is provided on the other one of the device main body and the earphone, and a snapin head cooperating with the clamping groove is provided at a top of the key. The key is provided with a first attraction portion, the device main body or the earphone having the clamping groove is provided with a second attraction portion, and the first attraction portion is magnetically attracted with the second attraction portion in a case that the key slides forward until the snapin head is inserted into the clamping groove.

公开(公告)号：US11587219B2

公开(公告)日：2023-02-21

申请号：US17051728

申请日：2018-09-06

Applicant: GOERTEK INC.

Inventor： Xinxin Han ,  Zhiyong Zhao ,  Nanjing Dong ,  Debo Sun

IPC: G06T7/00 ,  G06T7/136 ,  G06T7/62 ,  G06T7/11 ,  G06T7/66 ,  G06T7/13 ,  G01N21/88 ,  G09G5/10 ,  H04N9/31

Abstract: Provided are a method and an apparatus for detecting pixel defect of optical module, and a device, where the method includes: graying an image obtained by imaging a test binary image by an optical module in a darkroom environment to obtain a first grayscale image; determining a first grayscale area and a second grayscale area corresponding to two gray levels in the test binary image from the first grayscale image; determining a pixel point not matching a grayscale feature of respective grayscale region from the first grayscale area and the second grayscale area respectively as a pixel defect point; and determining the pixel defect of the optical module according to the pixel defect point. The technical solution provided in the present disclosure can detect accurately a pixel defect of an optical module which is advantageous in optimizing the processing technology of the optical module.