Patents by Inventor Yifei Wang
Yifei Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230101349Abstract: A query processing method, an electronic device and a storage medium are provided, which relates to the field of technologies, such as cloud computing technologies, big data technologies, or the like. An implementation includes: analyzing a type of a received retrieval request; and performing a query processing operation on the retrieval request based on the type of the retrieval request.Type: ApplicationFiled: July 25, 2022Publication date: March 30, 2023Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.Inventors: Yifei WANG, Yang WANG, Yu WANG
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Publication number: 20230081697Abstract: The present disclosure discloses an information security application-oriented reconfigurable system chip compiler and an automatic compilation method. The method includes the following steps: firstly, inputting a source program of a cryptographic algorithm; then, executing a software compilation function syntax check of the source program, and when the check result is passed, performing compilation mapping using a compiler; next, executing the cryptographic algorithm by simulation running using a simulator, and generating a configuration code by a simulator array; and finally, guiding a hardware behavior operation using a binary configuration code file generated by the simulator. The reconfigurable system chip compiler includes a source program input module, a software compilation function verification module, a compilation mapping module, a simulation execution module, a configuration code generation module, and a hardware debugging module.Type: ApplicationFiled: November 22, 2022Publication date: March 16, 2023Inventors: Wei GE, Chongyang LI, Leidong ZHENG, Yifei WANG
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Publication number: 20230070515Abstract: An electronic device may include a proximity sensor for detecting whether an external object is in the vicinity of the device. The proximity sensor may be implemented as an optical sensor module having a substrate, a light emitter die mounted on the substrate, a light detector die mounted on the substrate, and a package enclosure housing the light emitter and detector dies within the module. A infrared bandpass filter layer may be formed directly on the light detector die. The light detector die may have sidewalls at least partially covered by an opaque coating. The light detector die may include a highly doped backside reflection absorption layer interposed between an intrinsic absorption layer and an n-type layer within the light detector die. Opaque adhesive material may be used to mount the light detector die onto the surface of the substrate.Type: ApplicationFiled: September 7, 2021Publication date: March 9, 2023Inventors: Yifei Wang, Chih-Wei Chuang, Xiaoyang Zhang, Zhenbin Ge
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Publication number: 20230041280Abstract: A luminal stent has a tube body and a skirt surrounding the tube body. The skirt has a flexible connecting section and a stent graft connected to a proximal end of the flexible connecting section. A distal end of the flexible connecting section is sealed and connected to the outer surface of the tube body. A proximal end of the stent graft is suspended and provided with a first radial support structure. When the flexible connecting section is radially compressed, at least a part of the first radial support structure is bent towards a direction distant from the tube body. Also provided is a stent system including the luminal stent. The stent system and the luminal stent can prevent type III endoleaks.Type: ApplicationFiled: October 13, 2022Publication date: February 9, 2023Applicant: Lifetech Scientific (Shenzhen) Co., Ltd.Inventors: Benhao XIAO, Deyuan ZHANG, Chang SHU, Chao YIN, Yifei WANG
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Publication number: 20220392053Abstract: Embodiments of the present disclosure include a die system and a method of comparing alignment vectors. The die system includes a plurality of dies arranged in a desired pattern. An alignment vector, such as a die vector, can be determined from edge features of the die. The alignment vectors can be compared to other dies or die patterns in the same system. A method of comparing dies and die patterns includes comparing die vectors and/or pattern vectors. The comparison between alignment vectors allows for fixing the die patterns for the next round of processing. The methods provided allow accurate comparisons between as-deposited edge features, such that accurate stitching of dies can be achieved.Type: ApplicationFiled: September 14, 2020Publication date: December 8, 2022Inventors: Yongan XU, Chan Juan XING, Jinxin FU, Yifei WANG, Wayne MCMILLAN, Ludovic GODET
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Patent number: 11497636Abstract: A vascular stent (100) comprises a plurality of wave loops. In its natural state, in two of the wave loops which are adjacent in a group, a part of a wave crest of a lower layer wave loop are in a restrained connection with a part of a wave trough of an upper layer wave loop; the other part of the wave crest of the lower layer wave loop passes through the other part of the wave trough of the upper layer wave loop, and the other part of the wave crest and the other part of the wave trough are in a non-contact mutually-suspended connection. Some of the wave crests and wave troughs of the vascular stent (100) are in the non-contact mutually-suspended connection rather than the restrained connection, so that the maximum flexibility is provided to the stent, and meanwhile, the overall stability of the stent is guaranteed. The stent (100) can maintain a good shape during both implantation and the release process, so that safety during release is ensured.Type: GrantFiled: May 10, 2017Date of Patent: November 15, 2022Assignee: Lifetech Scientific (Shenzhen) Co. Ltd.Inventors: Benhao Xiao, Yifei Wang
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Publication number: 20220354411Abstract: Disclosed is a natural movement electroencephalogram (EEG) recognition method based on source localization and a brain network, which includes the following steps: (1) performing multi-channel EEG measurement for natural movements; (2) preprocessing acquired EEG signals, and extracting the movement-related cortical potential (MRCP), and ?, ?, ?, and ? rhythms; (3) determining a lead field matrix of the signals, calculating initial solutions of sources by means of L1 regularization constraint, and then performing iteration by means of successive over-relaxation to obtain a source localization result; (4) by using the sources as nodes, calculating PLV between each pair of sources at each time point by means of short-time sliding window, and establishing brain networks; and (5) calculating a network adjacency matrix at each time point and five brain network indicators, introducing these features into a classifier for training and testing, and conducting a statistical test for the brain network indicators.Type: ApplicationFiled: November 30, 2020Publication date: November 10, 2022Inventors: Baoguo XU, Leying DENG, Yifei WANG, Xin WANG, Aiguo SONG
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Patent number: 11443323Abstract: A mobile communications device includes a near field communications (NFC) port and processor. The processor executes a trusted application within a trusted execution environment (TEE) for processing sensitive data. Additionally, the processor executes a NFC driver within the TEE for providing a secure channel between the trusted application and the NFC port such that sensitive data being exchanged across the secure channel are inaccessible to other processes being executed by the processor.Type: GrantFiled: September 5, 2018Date of Patent: September 13, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Yifei Wang, An Liu, Pai Peng, Peng Ning
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Publication number: 20220269659Abstract: The disclosure provides a method for deduplicating entity nodes in a graph database. The method includes: obtaining a set of entity nodes to be deduplicated from the knowledge graph, in which the set includes a plurality of entity nodes; selecting an untraversed entity node from the set as a target entity node; determining a range located by a node identifier corresponding to the target entity node; determining the target entity node that has appeared in traversed entity nodes according to a deduplicating mode corresponding to the range; and deleting the target entity node from the set.Type: ApplicationFiled: May 12, 2022Publication date: August 25, 2022Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTDInventors: Yifei Wang, Yang Wang, Yu Wang
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Publication number: 20220257364Abstract: A covered stent comprises a radially compressible inner stent and an outer stent covering the inner stent, the inner stent comprises an inner support skeleton and an inner coating film arranged on the inner support skeleton; and the outer stent covering the inner stent, wherein the outer stent covers at least part of the inner stent, the outer stent comprises an outer support skeleton and an outer coating film arranged on the outer support skeleton, one end of the outer coating film is hermetically connected to the inner coating film, and the resilience of the outer coating film is greater than that of the inner coating film. The inner covering film is relatively soft. The outer covering film can rebound quickly, the outer stent effectively fills the gap between the inner stent and the wall of the lumen, so as to prevent inner leakage.Type: ApplicationFiled: December 4, 2019Publication date: August 18, 2022Applicant: Shenzhen Lifetech Endovascular Medical Co., Ltd.Inventors: Yifei Wang, Benhao Xiao
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Publication number: 20220244990Abstract: A method includes by a configuration center, receiving and executing a modification task, and locally storing modified state data and/or configuration data; generating a change task according to the modified state data and/or configuration data, and adding the change task into an asynchronous task queue corresponding to each storage node; receiving a heartbeat packet sent by the storage node; and taking out the added change task from the asynchronous task queue corresponding to the storage node, and adding the taken-out change task into a return message of the heartbeat packet to send the taken-out change task to the storage node; by a storage node, sending a heartbeat packet to a configuration center; receiving a return message of a heartbeat packet sent by the configuration center, the return message of the heartbeat packet including a change task; and adding the change task into an asynchronous task receiving queue for sequential execution.Type: ApplicationFiled: October 11, 2021Publication date: August 4, 2022Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.Inventors: Yifei WANG, Yang WANG, Yu WANG
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Publication number: 20220225006Abstract: A wearable electronic device such as an earbud, wristwatch, or other device may be provided with a skin sensor. The skin sensor may use optical measurements to detect the presence of skin adjacent to the electronic device. The sensor may have first and second light-emitting devices such as infrared devices that emit light at respective first and second infrared light wavelengths. Reflected light is monitored by a photodetector. Control circuitry can initiate or pause audio playback or take other actions in response to determining from the reflected light measurements that skin is present. The sensor may have a thin-film interference filter or other optical structure that overlaps the first and second light-emitting devices to narrow the angular spread of light emitted from the skin sensor. This reduces tilt sensitivity and helps enhance skin sensor accuracy.Type: ApplicationFiled: January 14, 2021Publication date: July 14, 2022Inventors: Nicholas P. Allec, Yuta Kuboyama, Xiaoyang Zhang, Xi Chen, Ryan M. Buck, Praveesh Chandran, Yifei Wang, Tingjun Xu
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Publication number: 20220163868Abstract: The present disclosure provides an optical compensation method for a display screen, a storage medium and an electronic device, and the method includes: determining a refresh time of a to-be-compensated screen; determining an exposure time as N times the refresh time, wherein N is a positive integer; controlling a camera to shoot the to-be-compensated screen based on the exposure time; acquiring an original image of the to-be-compensated screen captured by the camera; and performing optical compensation on the display effect of the to-be-compensated screen based on the original image. The present disclosure can avoid a split-screen phenomenon of the display effect of the screen after performing optical compensation on the display screen based on the original image.Type: ApplicationFiled: November 22, 2021Publication date: May 26, 2022Inventors: Yifei WANG, Tan JING, Tianliang LIU
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Patent number: 11334551Abstract: A method for storing a determinant text, an electronic device, and a computer-readable storage medium is disclosed. The method includes: obtaining a determinant text that is to be stored, the determinant text including a plurality of fields; obtaining valid fields from the plurality of fields; querying a field type table according to the valid fields to generate a data description field of the determinant text; determining a value storage field of the determinant text according to contents of the plurality of fields and the field type table; and storing the data description field and the value storage field to store the determinant text.Type: GrantFiled: September 30, 2020Date of Patent: May 17, 2022Assignee: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.Inventors: Yang Wang, Xunchao Song, Pengcheng Yuan, Haiping Zhang, Yifei Wang
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Publication number: 20220145045Abstract: The field of new compounds and synthesis methods thereof are related, and particularly to a structure of a steric hindrance adjustable weak base light stabilizer and a preparation method and application thereof. According to the innovative light stabilizer, a steric hindrance thereof is adjusted by establishing substituent generating the steric hindrance around nitrogen atoms; moreover, an electronegativity of the nitrogen atom can be influenced by adjusting a distance of a polar group, so that an alkalinity or a nucleophilicity of the nitrogen atom is adjusted. A desired effect is obtained by adjusting a steric hindrance and a nucleophilic property or an alkalinity where the nitrogen atom is located, so that an application range of the innovative light stabilizer is widened, and the innovative light stabilizer is suitable for PC, polyester, PVC and other slightly acidic or certain electrophilic polymer materials to serve as a light stability protecting aid.Type: ApplicationFiled: September 17, 2021Publication date: May 12, 2022Inventors: Lijuan MAO, Shubai LIU, Chengshi ZHAO, Qiwei YIN, Yifan DING, Yifei WANG, Rui LUO, Xiuying CHEN, Jijiang WANG, Jing LI, Chunjuan XU, Jinge SONG, Jun CHEN, Meiya YU
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Publication number: 20220081752Abstract: A method of depositing of a film on a substrate with controlled adhesion. The method comprises depositing the film including metal, wherein the metal is deposited on the substrate using physical vapor deposition at a pressure that achieves a pre-determined adhesion of the film to the substrate. The pre-determined adhesion allows processing of the film into a device while the film is adhered to the substrate but also allows removal of the device from the substrate.Type: ApplicationFiled: November 29, 2021Publication date: March 17, 2022Applicant: Medtronic MiniMed, Inc.Inventors: Akhil Srinivasan, Yifei Wang
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Publication number: 20220079783Abstract: A vascular stent, including an inner stent tube as well as a proximal support and a distal support which are arranged on an outer wall of the inner stent tube. When the vascular stent is in a compressed configuration, the proximal support and the distal support are both folded and close to the outer wall of the inner stent tube; when the vascular stent is expanded from the compressed configuration to an expanded configuration, a free end of the proximal support expands towards the distal end of the vascular stent, and a free end of the distal support expands towards the proximal end of the vascular stent. The vascular stent can be anchored to a main stent tube in a blood vessel by the proximal support and the distal support, preventing the vascular stent from shifting or becoming dislodged after being transplanted into the main stent tube.Type: ApplicationFiled: October 9, 2019Publication date: March 17, 2022Applicant: Shenzhen Lifetech Endovascular Medical Co., Ltd.Inventors: Yifei Wang, Benhao Xiao
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Publication number: 20220078949Abstract: Disclosed are a display module and a method for manufacturing the same, and a display device. The display module includes: a display panel, a heat dissipation layer, a heat conduction assembly, and a driving chip, wherein the display panel includes a first part and a second part opposite to each other, and a bending part connecting the first part and the second part; the heat dissipation layer is disposed on a side, proximal to the second part, of the first part; the heat conduction assembly is disposed between the heat dissipation layer and the second part; an area of an orthographic projection of the heat conduction assembly on the first part is smaller than an area of an orthographic projection of the heat dissipation layer on the first part; and the driving chip is disposed on a side, distal from the heat conduction assembly, of the second part distal.Type: ApplicationFiled: September 7, 2021Publication date: March 10, 2022Inventors: Fei Li, Zhihui Yan, Tianliang Liu, Yifei Wang, Hao Huang, Xu Lu
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Publication number: 20220050354Abstract: Provided is an optical modulator including a substrate, and a plurality of meta units provided on the substrate and spaced apart from each other, wherein at least one of the plurality of meta units includes a metal layer provided on the substrate, a dielectric layer provided an upper surface and side surfaces of the metal layer, and an antenna provided on an upper surface of the dielectric layer, the antenna including phase change material, wherein a refractive index of the phase change material changes based on a voltage applied to the metal layer to modulate incident light.Type: ApplicationFiled: August 4, 2021Publication date: February 17, 2022Applicants: SAMSUNG ELECTRONICS CO., LTD., The Board of Trustees of the Leland Stanford Junior UniversityInventors: Junghyun PARK, Mark L. BRONGERSMA, Yifei WANG
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Publication number: 20220013905Abstract: Provided is a phase modulator including an antenna pattern, a lower reflective layer spaced apart from the antenna pattern in a vertical direction, a spacer provided between the antenna pattern and the lower reflective layer, and a phase shift pattern included in the spacer, the phase shift pattern including a phase shift material.Type: ApplicationFiled: July 9, 2021Publication date: January 13, 2022Applicants: SAMSUNG ELECTRONICS CO., LTD., The Board of Trustees of the Leland Stanford Junior UniversityInventors: Junghyun PARK, Yifei Wang, Mark L. Brongersma