公开(公告)号：US20250142073A1

公开(公告)日：2025-05-01

申请号：US18681633

申请日：2022-08-23

Applicant: PENG CHENG LABORATORY

Inventor： Wenbo Zhao ,  Jing Wang ,  Ge Li ,  Wen Gao

IPC: H04N19/13 ,  G06T9/00 ,  H04N19/136 ,  H04N19/184

Abstract: A point cloud encoding method, decoding method, encoding device, and decoding device are disclosed. The point cloud encoding method includes calculating a distance from a first point to a parent point of the first point as a first distance; determining a point in un-encoded points closest to the first point as a second point, and calculating residual values on N coordinate components from the second point to the first point; encoding absolute values of the residual values on the N coordinate components from the second point to the first point; encoding signs of the residual values of the second point based on the residual values of the second point and the first distance. The present disclosure utilizes the geometry position relationship between points in a point cloud to encode the absolute values of residual values and the feasible signs of residual values, thereby improving the encoding efficiency of residual values. At the same time, by optimizing the encoding efficiency of residual values, the performance of point cloud prediction tree encoding is improved.

公开(公告)号：US20230412769A1

公开(公告)日：2023-12-21

申请号：US18037408

申请日：2021-04-13

Applicant: PENG CHENG LABORATORY

Inventor： Wen Gao ,  Yaowei Wang ,  Xinbei Bai ,  Wen Ji ,  Yonghong Tian

IPC: H04N7/18 ,  G06V20/40

CPC classification number: H04N7/181 ,  G06V20/40

Abstract: A visual computing system is disclosed. The visual computing system may include a front-end device, an edge service and a cloud service which are in communication connection, the front-end device is configured to output compressed video data and feature data, the edge service is configured to store the video data, and converge the feature data, transmit various types of data and control commands, and the cloud service is configured to store algorithm models used to support various applications, and return a model stream according to a model query command, realizing a data transmission architecture with multiple streams of video stream, feature stream, and model stream in parallel, and a system architecture of end, edge, and cloud collaboration.

公开(公告)号：US20230224129A1

公开(公告)日：2023-07-13

申请号：US17926894

申请日：2020-07-10

Applicant: Olufunmilola Omolade AWONIYI-OTERI ,  Jelena DAMNJANOVIC ,  Tao LUO ,  Punyaslok PURKAYASTHA ,  Ozcan OZTURK ,  Huilin XU ,  Peng CHENG ,  Junyi LI ,  Sony AKKARAKARAN ,  Juan MONTOJO ,  Aleksandar DAMNJANOVIC ,  QUALCOMM Incorporated

Inventor： Olufunmilola Omolade AWONIYI-OTERI ,  Jelena DAMNJANOVIC ,  Tao LUO ,  Punyaslok PURKAYASTHA ,  Ozcan OZTURK ,  Huilin XU ,  Peng CHENG ,  Junyi LI ,  Sony AKKARAKARAN ,  Juan MONTOJO ,  Aleksandar DAMNJANOVIC

IPC: H04L5/00 ,  H04L1/00 ,  H04W52/02 ,  H04W72/232

CPC classification number: H04L5/0053 ,  H04L1/0026 ,  H04L5/0048 ,  H04W52/0235 ,  H04W72/232

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for a user equipment (UE) entering a dormant state with respect to a secondary cell group (SCG) of a node network (SN) having a primary serving cell (PSCell). In one aspect, the UE may maintain a parameter set for at least the PSCell while the UE is in the dormant state with respect to the SCG. For example, the UE may receive a parameter change message from either the SN or a master network (MN) and transmit a parameter change acknowledgment to either the SN or the MN. The parameter change message may be transmitted as one or both of a downlink control information (DCI) or media access control (MAC) control element (CE). The UE may transmit physical layer measurements to the SN based on the parameter set.

公开(公告)号：US11638934B2

公开(公告)日：2023-05-02

申请号：US17887128

申请日：2022-08-12

Applicant: PENG CHENG LABORATORY

Inventor： Caiming Sun ,  Aidong Zhang ,  Jing Lin ,  Xinke Tang

IPC: B08B1/04 ,  B08B1/00 ,  B08B3/02

Abstract: Disclosed is an optical window cleaning device, including: a cleaning brush; and a wiper arm. The wiper arm includes a first link, a torsion mechanism, a second link and a wiper arm drive system. A second end of the first link is hinged to a first end of the second link. The cleaning brush is hinged to a first end of the first link, a rotation trajectory of the cleaning brush and a rotation trajectory of a hinge joint between the second end of the first link and the first end of the second link are both located in a first plane. A rotation trajectory of the second link and the rotation trajectory of the hinge joint are located in the first plane. The torsion mechanism provides the first link and the second link with a force that rotates the first link relative to the second link.

公开(公告)号：US20220198712A1

公开(公告)日：2022-06-23

申请号：US17604185

申请日：2020-03-05

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY ,  PENG CHENG LABORATORY

Inventor： Wei ZHONG ,  Deyun LV ,  Weiqiang KONG ,  Risheng LIU ,  Xin FAN ,  Zhongxuan LUO ,  Shengquan LI

IPC: G06T7/80 ,  H04N17/00

Abstract: The present invention discloses a method for adaptively detecting chessboard sub-pixel level corner points. Adaptive detection of chessboard sub-pixel level corner points is completed by marking position of an initial unit grid on a chessboard, using a homography matrix H calculated by pixel coordinates of four corner points of the initial unit grid in a pixel coordinate system and world coordinates in a world coordinate system to expand outwards, adaptively adjusting size of an iteration window in the process of expanding outwards, and finally spreading to the whole chessboard region.

公开(公告)号：US20220167447A1

公开(公告)日：2022-05-26

申请号：US17425555

申请日：2020-01-22

Applicant: Huichun LIU ,  Peng CHENG ,  Xipeng ZHU ,  Gavin Bernard HORN ,  Ozcan OZTURK ,  Qualcomm incorporated

Inventor： Huichun LIU ,  Peng CHENC ,  Xipeng ZHU ,  Gavin Bernard HORN ,  Ozcan OZTURK

IPC: H04W76/16 ,  H04W48/16 ,  H04L43/065 ,  H04W24/08 ,  H04W74/00

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently collecting and reporting minimization of drive test (MDT) measurements for one or more radio access technology (RAT) types and/or for multiple base stations in a dual connectivity deployment. In one example, a user equipment (UE) may receive an MDT measurement configuration indicating a first RAT type for collecting measurements and a second RAT type for reporting measurements. In this example, the UE may use the measurement configuration to collect MDT measurements for the first RAT type, and the UE may report the MDT measurements to a base station associated with the second RAT. Further techniques for efficiently collecting and reporting MDT measurements in a dual connectivity deployment are also described herein.

公开(公告)号：US20220158781A1

公开(公告)日：2022-05-19

申请号：US17424446

申请日：2020-01-22

Applicant: Xipeng ZHU ,  Huichun LIU ,  Gavin Bernard HORN ,  Peng CHENG ,  Juan ZHANG ,  Tom CHIN ,  Min WANG ,  Ozcan OZTURK ,  Qualcomm Incorporated

Inventor： Xipeng ZHU ,  Huichun LIU ,  Gavin Bernard HORN ,  Peng CHENG ,  Juan ZHANG ,  Tom CHIN ,  Min WANG ,  Ozcan OZTURK

IPC: H04L5/00 ,  H04W24/10 ,  H04W28/02

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify that the UE is operating in a dual-connectivity configuration with a master node (MN) and a secondary node (SN). The UE may receive at least one request that the UE report MDT measurements. The UE may perform a first portion of measurements associated with the first base station and perform a second portion of measurements associated with the second base station. The UE may perform the measurements while the UE is operating in the dual-connectivity configuration. The UE may transmit one or more reports including information indicative of the first portion of measurements, information indicative of the second portion of measurements, or both.

公开(公告)号：US11315273B2

公开(公告)日：2022-04-26

申请号：US17604239

申请日：2020-03-05

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY ,  PENG CHENG LABORATORY

Inventor： Wei Zhong ,  Hong Zhang ,  Haojie Li ,  Zhihui Wang ,  Risheng Liu ,  Xin Fan ,  Zhongxuan Luo ,  Shengquan Li

IPC: G06T7/55 ,  G06T5/00 ,  G06N20/00 ,  G06T5/20 ,  G06K9/62

Abstract: The present invention discloses a disparity estimation method for weakly supervised trusted cost propagation, which utilizes a deep learning method to optimize the initial cost obtained by the traditional method. By combining and making full use of respective advantages, the problems of false matching and difficult matching of untextured regions in the traditional method are solved, and the method for weakly supervised trusted cost propagation avoids the problem of data label dependency of the deep learning method.

公开(公告)号：US20210352750A1

公开(公告)日：2021-11-11

申请号：US17286708

申请日：2019-12-03

Applicant: Peng CHENG ,  Yu-Ting YU ,  Huichun LIU ,  Linhai HE ,  Gavin Bernard HORN ,  Masato KITAZOE ,  Qualcomm Incorporated

Inventor： Peng CHENG ,  Yu-Ting YU ,  Huichun LIU ,  Linhai HE ,  Gavin Bernard HORN ,  Masato KITAZOE

IPC: H04W76/15 ,  H04W24/10 ,  H04W56/00 ,  H04W24/08 ,  H04W72/04 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications are described. The method may include receiving from a master cell group of a dual connectivity environment a first message indicating that a secondary cell group of the dual connectivity environment is suspended, maintaining a lower layer configuration for the secondary cell group and modifying a measurement report configuration for the secondary cell group based on the first message and while the secondary cell group is suspended, receiving from the master cell group a second message indicating that the secondary cell group is no longer suspended, and reconnecting to the secondary cell group using the lower layer configuration for the secondary cell group based on the second message.

公开(公告)号：US20200267583A1

公开(公告)日：2020-08-20

申请号：US16648948

申请日：2018-09-21

Applicant: Peng CHENG ,  Masato KITAZOE ,  Aleksandar DAMNJANOVIC ,  Sumeeth NAGARAJA ,  Keiichi KUBOTA ,  Wanshi CHEN ,  Valentin Alexandru GHEORGHIU ,  Peter GAAL ,  Juan MONTOJO ,  QUALCOMM Incorporated

Inventor： Peng CHENG ,  Masato KITAZOE ,  Aleksandar DAMNJANOVIC ,  Sumeeth NAGARAJA ,  Keiichi KUBOTA ,  Wanshi CHEN ,  Valentin Alexandru GHEORGHIU ,  Peter GAAL ,  Juan MONTOJO

IPC: H04W24/10 ,  H04W24/08 ,  H04W48/16

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a measurement regarding a plurality of bandwidth parts of a carrier of the user equipment based at least in part on a measurement object associated with the measurement; determine a cell quality regarding the plurality of bandwidth parts based at least in part on the measurement object; and/or transmit a measurement report identifying the measurement and/or the cell quality based at least in part on the measurement object. Numerous other aspects are provided.