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1 / 85,402
1.WO/2023/196753DISPLAY DEVICES WITH IN-FIELD CALIBRATION
WO - 12.10.2023
Int.Class G02B 27/01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/-G02B26/119
01Head-up displays
 Appl.No PCT/US2023/065112 Applicant APPLE INC. Inventor CINCIONE, Dominic P
A head-mounted device may include a first display having a first projector and a first waveguide, a second display having a second projector and a second waveguide, first and second cameras, an optical sensor that couples the first waveguide to the second waveguide, and position sensors mounted to the first and second cameras and the optical sensor. The optical sensor may gather image sensor data from first image light propagating in the first waveguide and second image light propagating in the second waveguide. The cameras may capture real-world images. The position sensors may gather position measurements. Control circuitry may calibrate optical misalignment in the device by adjusting the first and/or second image light based on the image sensor data, the position measurements, and/or the world light.
2.WO/2023/083263VIDEO ENCODING AND DECODING METHOD AND APPARATUS
WO - 19.05.2023
Int.Class H04N 19/63
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
60using transform coding
63using sub-band based transform, e.g. wavelets
 Appl.No PCT/CN2022/131167 Applicant HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD. Inventor CAO, Xiaoqiang
The present application relates to the technical field of video encoding and decoding, and discloses a video encoding and decoding method and apparatus, which are used for providing a new transformation method for current encoding and decoding technologies. The transformation method can improve the transformation flexibility. The use of the transformation method based on different dimensions can reduce the calculation complexity, reduce the calculation burden of a hardware device, reduce the hardware implementation complexity, and improve the compression performance. The decoding method comprises: performing entropy decoding and inverse quantization on a code stream to obtain an inverse transform unit; and performing discrete wavelet inverse transform on the inverse transform unit to obtain an inverse transform coefficient.
3.WO/2023/020350DIGITAL VIDEO RECORDER, AND METHOD FOR DETECTING COAXIAL AUDIO DATA
WO - 23.02.2023
Int.Class H04N 5/781
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
76Television signal recording
78using magnetic recording
781on disks or drums
 Appl.No PCT/CN2022/111434 Applicant HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD. Inventor ZHANG, Hailong
The embodiments of the present application belong to the field of audio and video data transmission. Disclosed are a digital video recorder, and a method for detecting coaxial audio data. The method comprises: determining the signal system of a path of video signals; on the basis of the signal system, determining a coaxial audio modulation position; detecting voltages at the coaxial audio modulation position in M frames of video signals of the path of video signals, so as to obtain K voltages; and when the K voltages meet a coaxial audio condition, determining that the path of video signals contains coaxial audio data. In the embodiments of the present application, by means of determining that a video signal contains coaxial audio data, subsequent correct processing of the coaxial audio data is ensured, and subsequent normal playing of audio data is also ensured.
4.WO/2023/160305TRAVELLING DIRECTION ADJUSTING METHOD, MOBILE ROBOT SYSTEM AND ELECTRONIC DEVICE
WO - 31.08.2023
Int.Class A47L 11/24
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
11Machines for cleaning floors, carpets, furniture, walls, or wall coverings
24Floor-sweeping machines, motor-driven
 Appl.No PCT/CN2023/072374 Applicant HANGZHOU EZVIZ SOFTWARE CO., LTD. Inventor CHEN, Hao
A travelling direction adjusting method, a mobile robot system, an electronic device and a storage medium, applied to the technical field of mobile robots. The method comprises: obtaining an indoor top image acquired upwardly for a room where a mobile robot is located (S101); determining a plurality of line segments included in the indoor top image (S102); identifying at least one target line segment from the line segments, each target line segment being a line segment in a line segment direction parallel to the ground (S103); on the basis of the line segment lengths of the target line segments, screening, from the line segment directions of the target line segments, a line segment direction to be used that is parallel to or perpendicular to the wall surface of the room (S104); and adjusting the travelling direction of the mobile robot on the basis of the line segment direction to be used (S105). The travelling direction of the mobile robot can be adjusted to be parallel to or perpendicular to the wall surface.
5.WO/2024/217419WAVEGUIDE ARRAY ANTENNA
WO - 24.10.2024
Int.Class H01Q 1/38
HELECTRICITY
01ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
36Structural form of radiating elements, e.g. cone, spiral, umbrella
38formed by a conductive layer on an insulating support
 Appl.No PCT/CN2024/088105 Applicant WHST CO., LTD. Inventor ZHANG, Lingfei
The present application provides a waveguide array antenna, comprising a metal plate, a waveguide antenna unit, a waveguide bending structure, a waveguide power divider, and a waveguide transmission line. An accommodating cavity is formed in the metal plate; one end of the waveguide bending structure is connected to the waveguide transmission line, and the other end of the waveguide bending structure extends in the horizontal direction, and is provided with an upward bending part; the waveguide power divider is connected to the upper end of the bending part; the waveguide antenna unit is connected to the upper end of the waveguide power divider.
6.WO/2023/185375DEPTH MAP GENERATION SYSTEM AND METHOD, AND AUTONOMOUS MOBILE DEVICE
WO - 05.10.2023
Int.Class G06T 7/514
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
50Depth or shape recovery
514from specularities
 Appl.No PCT/CN2023/079554 Applicant HANGZHOU EZVIZ SOFTWARE CO., LTD. Inventor DU, Bin
A depth map generation system and method, and an autonomous mobile device. The method comprises: a plurality of projectors (103) projecting light; a sensor (102) acquiring an image to be processed; a processor (101) comparing the image to be processed with a preset speckle image, so as to obtain disparities corresponding to pixels at speckle locations in the image to be processed; for any baseline, on the basis of the baseline and the disparities corresponding to the pixels at the speckle locations, calculating depth values, which correspond to the baseline, of the pixels at the speckle locations; for any baseline, on the basis of the depth values, which correspond to the baseline, of the pixels at the speckle locations, generating a depth map corresponding to the baseline; and fusing depth maps corresponding to baselines, so as to obtain a target depth map. Therefore, a plurality of baselines for different distances between a plurality of projectors (103) and a sensor (102) can be used to respectively calculate corresponding depth maps, and the calculated depth maps are fused, thereby improving the accuracy of depth calculation.
7.WO/2023/241451PHOTOGRAPHIC DEVICE
WO - 21.12.2023
Int.Class H04N 23/50
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
23Cameras or camera modules comprising electronic image sensors; Control thereof
50Constructional details
 Appl.No PCT/CN2023/099145 Applicant HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD. Inventor WANG, Jian
A photographic device, which comprises a gimbal assembly, a camera assembly and an antenna assembly, wherein the camera assembly is arranged on the gimbal assembly, and comprises a housing and a camera core arranged in the housing; the antenna assembly comprises an antenna support, an antenna group and electrical connectors; the antenna support is arranged on the housing; the antenna group comprises a plurality of antennas fixed to the antenna support; and the antennas are all electrically connected to the electrical connectors, which are also electrically connected to the camera core.
8.WO/2024/222106ARRAY PANEL OF MICROPHONE ARRAY AND SOUND WAVE IMAGING DEVICE
WO - 31.10.2024
Int.Class H04R 5/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
5Stereophonic arrangements
04Circuit arrangements
 Appl.No PCT/CN2024/074561 Applicant HANGZHOU MICROIMAGE SOFTWARE CO., LTD. Inventor LI, Yuan
The present application provides an array panel of a microphone array and an sound wave imaging device. The array panel of the microphone array comprises a panel main body in the shape of a flat plate; the panel main body is provided with a plurality of pickup holes, the plurality of pickup holes are through holes penetrating through the panel main body, and the plurality of pickup holes have one-to-one correspondence to the deployment positions of microphones in the microphone array; the outer surface of the panel main body facing away from the microphone array is provided with a plurality of sound wave diffusion structures that are staggered with the plurality of pickup holes, and each sound wave diffusion structure comprises a blind hole or a convex hull.
9.WO/2024/245183DETECTION APPARATUS AND CARGO HANDLING DEVICE
WO - 05.12.2024
Int.Class B66F 9/075
BPERFORMING OPERATIONS; TRANSPORTING
66HOISTING; LIFTING; HAULING
FHOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
9Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
06movable, with their loads, on wheels or the like, e.g. fork-lift trucks
075Constructional features or details
 Appl.No PCT/CN2024/095469 Applicant HANGZHOU HIKROBOT CO., LTD. Inventor NA, Yaozong
A detection apparatus and a cargo handling device. The detection apparatus (100) comprises a mounting plate (300), a first elastic plate (400), and a first detection member (510); the mounting plate (300) is provided on a cargo handling device; the mounting plate (300) and the first elastic plate (400) define a mounting space (310); the first detection member (510) is located in the mounting space (310) and is arranged on the mounting plate (300); the first elastic plate (400) is provided with a first opening (410); the first detection member (510) is arranged opposite to the first opening (410); and the first detection member (510) can detect an obstacle (600) by means of the first opening (410).
10.WO/2023/124010DUST REMOVAL CAMERA
WO - 06.07.2023
Int.Class H04N 5/225
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment
225Television cameras
 Appl.No PCT/CN2022/105403 Applicant HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD. Inventor WANG, Leilei
Disclosed is a dust removal camera. The dust removal camera comprises: a housing assembly (3), upon which a lens assembly (4) is mounted; a lower cover assembly (2), which is mounted to the housing assembly (3) and has a transparent window (22), the lens assembly (4) acquiring image information by means of said transparent window (22); and a wiper assembly (1), which is mounted to the housing assembly (3) and has a wiper strip (11); wherein the transparent window (22) and the wiper strip (11) are configured to rotate relative to each other, and a surface of the transparent window (22) is cleaned by means of the wiper strip (11) sweeping across the surface of the transparent window (22).
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