Patents by Inventor Sichao ZHANG
Sichao ZHANG 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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Patent number: 11783619Abstract: A fingerprint identification apparatus and an electronic device are provided, which can improve the fingerprint imaging quality while achieving the lightness and thinness of the fingerprint identification apparatus. The fingerprint identification apparatus is applicable to be under a display screen, including a plurality of fingerprint identification units arranged in an array, where each fingerprint identification unit includes: a micro-lens; at least one light shielding layer, where each light shielding layer is provided with a light passing hole, a bottom light shielding layer is provided with N light passing hole, and a largest aperture D1 of each light passing hole and a largest aperture CA of the micro-lens satisfy 0.02D1/CA0.4, to form N light guiding passages in different directions; N pixel units, disposed under the at least one light shielding layer, and disposed in one-to-one correspondence with bottoms of N light guiding passages.Type: GrantFiled: October 27, 2021Date of Patent: October 10, 2023Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Sichao Zhang, Yin Wang, Junxian Lin, Fei Hsin Tsai
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Patent number: 11531430Abstract: A fingerprint detection apparatus and an electronic device are provided. The fingerprint detection apparatus is applied under a display screen, the fingerprint detection apparatus includes a plurality of fingerprint detecting units distributed in an array or arranged in a staggered manner, and the fingerprint detecting unit includes: a plurality of optical sensing pixels; at least one micro lens disposed above the plurality of optical sensing pixels; and at least one light shielding layer disposed between the at least one micro lens and the plurality of optical sensing pixels, each of the at least one light shielding layer being provided with an opening corresponding to the plurality of optical sensing pixels; where oblique light signals in multiple directions are respectively transmitted to the plurality of optical sensing pixels through an opening provided in the at least one light shielding layer after being converged by the at least one micro lens.Type: GrantFiled: September 28, 2020Date of Patent: December 20, 2022Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Sichao Zhang, Fei Hsin Tsai, Yuping Liu
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Resource allocation method for coexistence of multiple line topological industrial wireless networks
Patent number: 11528684Abstract: A resource allocation method for coexistence of multiple line topological industrial wireless networks is provided. It pertains to the coexistence problem of multiple TDMA-based line topological industrial wireless networks, including three parts: lower bound analysis of scheduling delay, allocation algorithm of inter-network resources and allocation algorithm of intra-network resources. The method uses overall scheduling delay and resource utilization ratio as measurement indexes when analyzing the lower bound of delay and designing resource allocation algorithms, and selects a best node combination in each time slot to occupy as many channel resources as possible to improve the resource utilization ratio and reduce the overall scheduling delay.Type: GrantFiled: November 20, 2019Date of Patent: December 13, 2022Assignee: SHENYANG INSTITUTE OF AUTOMATION, CHINESE ACADEMY OF SCIENCESInventors: Wei Liang, Jialin Zhang, Meng Zheng, Sichao Zhang, Kai Wang, Shuai Liu -
Patent number: 11455823Abstract: Embodiments of the present application discloses an under-screen fingerprint identification apparatus, which includes: a micro-lens array, configured to be disposed under the backlight module of the liquid crystal display screen; at least one light shielding layer, disposed under the micro-lens array, wherein the light shielding layer is provided with a plurality of light transmission holes; a photo detecting array, disposed under the light shielding layer; wherein the micro-lens array is configured to converge an optical signal with a specific direction passing through the backlight module to a plurality of light transmission holes, and transmit an optical signal with a non-specific direction passing through the backlight module to a light shielding region of the light shielding layer, wherein the optical signal with the specific direction is transmitted to the photo detecting array through the plurality of light transmission holes.Type: GrantFiled: December 14, 2019Date of Patent: September 27, 2022Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Sichao Zhang, Hao Xie
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Patent number: 11403869Abstract: An embodiment of the present application discloses an optical fingerprint identification apparatus and an electronic device, which can improve performance of the optical fingerprint identification apparatus. The optical fingerprint identification apparatus includes: a light detection array; a filter layer, disposed above the light detection array, where the filter layer is integrated with the light detection array in a photosensor chip; a first light blocking layer formed above the filter layer, where the first light blocking layer is provided with a plurality of light passing holes; and a first microlens array disposed above the first light blocking layer, where the first microlens array is configured to converge the optical signal to the plurality of light passing holes of the first light blocking layer, and the optical signal is transmitted to the light detection array through the plurality of light passing holes of the first light blocking layer.Type: GrantFiled: November 24, 2019Date of Patent: August 2, 2022Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Baoquan Wu, Sichao Zhang, Wei Long
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Patent number: 11290482Abstract: A mobile application notification system that includes a cloud node including a subscription service and a publication service, each executed on the cloud node, wherein the subscription service is configured to manage a plurality of users associated with a tenant of multiple tenants, each of the plurality of users have a corresponding user device that executes a monitoring application thereon, wherein management via the subscription service includes subscribing each of the plurality of users and configuring the tenant and associated messages, and wherein the publication service is configured to communicate with the corresponding user device of the plurality of users and to communication to a plurality of publisher threads, for exchanging messages therebetween, based on the subscribing and the configuring, and wherein at least two corresponding user device of the plurality of users utilize a different operating system and platform from one another.Type: GrantFiled: July 15, 2020Date of Patent: March 29, 2022Assignee: Zscaler, Inc.Inventors: Jasbir Singh Kaushal, Sichao Zhang, Varun Singh, Muralidharan Manickam, Priyanka Pani
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Publication number: 20220050994Abstract: A fingerprint identification apparatus and an electronic device are provided, which can improve the fingerprint imaging quality while achieving the lightness and thinness of the fingerprint identification apparatus. The fingerprint identification apparatus is applicable to be under a display screen, including a plurality of fingerprint identification units arranged in an array, where each fingerprint identification unit includes: a micro-lens; at least one light shielding layer, where each light shielding layer is provided with a light passing hole, a bottom light shielding layer is provided with N light passing hole, and a largest aperture D1 of each light passing hole and a largest aperture CA of the micro-lens satisfy 0.02D1/CA0.4, to form N light guiding passages in different directions; N pixel units, disposed under the at least one light shielding layer, and disposed in one-to-one correspondence with bottoms of N light guiding passages.Type: ApplicationFiled: October 27, 2021Publication date: February 17, 2022Inventors: Sichao ZHANG, Yin WANG, Junxian LIN, Fei Hsin TSAI
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Publication number: 20210360016Abstract: A mobile application notification system that includes a cloud node including a subscription service and a publication service, each executed on the cloud node, wherein the subscription service is configured to manage a plurality of users associated with a tenant of multiple tenants, each of the plurality of users have a corresponding user device that executes a monitoring application thereon, wherein management via the subscription service includes subscribing each of the plurality of users and configuring the tenant and associated messages, and wherein the publication service is configured to communicate with the corresponding user device of the plurality of users and to communication to a plurality of publisher threads, for exchanging messages therebetween, based on the subscribing and the configuring, and wherein at least two corresponding user device of the plurality of users utilize a different operating system and platform from one another.Type: ApplicationFiled: July 15, 2020Publication date: November 18, 2021Inventors: Jasbir Singh Kaushal, Sichao Zhang, Varun Singh, Muralidharan Manickam, Priyanka Pani
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Patent number: 11089047Abstract: Systems and methods include obtaining log data from a storage cluster associated with a cloud-based security system, wherein the log data includes transaction data associated with a plurality of users of the cloud-based security system, wherein the transaction data is for one or more of cloud security service transactions, application access via a Zero Trust Network Access (ZTNA) service, and user experience metrics, and wherein the cloud-based security system includes a plurality of tenants with the plurality of users each assigned thereto; analyzing the log data to determine a plurality of visualizations of the transaction data for a tenant; providing a User Interface (UI) to a mobile application with the plurality of visualizations; and providing a risk score summarizing an overall risk posture of the tenant in a single metric.Type: GrantFiled: May 12, 2020Date of Patent: August 10, 2021Assignee: Zscaler, Inc.Inventors: Jasbir Singh Kaushal, Sichao Zhang, Varun Singh, Alex Rozenberg, Jay Chaudhry, Muralidharan Manickam
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Publication number: 20210133423Abstract: A fingerprint detection apparatus and an electronic device are provided. The fingerprint detection apparatus is applied below a display screen to implement under-screen optical fingerprint detection, and the fingerprint detection apparatus includes: a micro lens array disposed below the display screen; Z light shielding layers disposed below the micro lens array, each of the Z light shielding layers being provided with an array of small holes, where Z is a positive integer; and an optical sensing pixel array disposed below an array of small holes of a bottom light shielding layer of the Z light shielding layers; where an array of small holes of each of the Z light shielding layers satisfies 0?Xi/Zd?3. By restricting structure parameters of small holes in an array of small holes, aliasing of transmission of light signals returned via different positions of a finger could be avoided.Type: ApplicationFiled: September 18, 2020Publication date: May 6, 2021Inventors: Sichao ZHANG, Junxian LIN, Yin WANG, Fei Hsin TSAI
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RESOURCE ALLOCATION METHOD FOR COEXISTENCE OF MULTIPLE LINE TOPOLOGICAL INDUSTRIAL WIRELESS NETWORKS
Publication number: 20210127366Abstract: The present invention relates to an allocation technology for wireless network resources, and particularly to a resource allocation method for coexistence of multiple line topological industrial wireless networks. The present invention considers the coexistence problem of multiple TDMA-based line topological industrial wireless networks, including three parts: lower bound analysis of scheduling delay, allocation algorithm of inter-network resources and allocation algorithm of intra-network resources. The method uses overall scheduling delay and resource utilization ratio as measurement indexes when analyzing the lower bound of delay and designing resource allocation algorithms, and selects a best node combination in each time slot to occupy as many channel resources as possible to improve the resource utilization ratio and reduce the overall scheduling delay.Type: ApplicationFiled: November 20, 2019Publication date: April 29, 2021Inventors: Wei LIANG, Jialin ZHANG, Meng ZHENG, Sichao ZHANG, Kai WANG, Shuai LIU -
Publication number: 20210011578Abstract: A fingerprint detection apparatus and an electronic device are provided. The fingerprint detection apparatus is applied under a display screen, the fingerprint detection apparatus includes a plurality of fingerprint detecting units distributed in an array or arranged in a staggered manner, and the fingerprint detecting unit includes: a plurality of optical sensing pixels; at least one micro lens disposed above the plurality of optical sensing pixels; and at least one light shielding layer disposed between the at least one micro lens and the plurality of optical sensing pixels, each of the at least one light shielding layer being provided with an opening corresponding to the plurality of optical sensing pixels; where oblique light signals in multiple directions are respectively transmitted to the plurality of optical sensing pixels through an opening provided in the at least one light shielding layer after being converged by the at least one micro lens.Type: ApplicationFiled: September 28, 2020Publication date: January 14, 2021Inventors: Sichao ZHANG, Fei Hsin TSAI, Yuping LIU
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Publication number: 20200327296Abstract: An embodiment of the present application discloses an optical fingerprint identification apparatus and an electronic device, which can improve performance of the optical fingerprint identification apparatus. The optical fingerprint identification apparatus includes: a light detection array; a filter layer, disposed above the light detection array, where the filter layer is integrated with the light detection array in a photosensor chip; a first light blocking layer formed above the filter layer, where the first light blocking layer is provided with a plurality of light passing holes; and a first microlens array disposed above the first light blocking layer, where the first microlens array is configured to converge the optical signal to the plurality of light passing holes of the first light blocking layer, and the optical signal is transmitted to the light detection array through the plurality of light passing holes of the first light blocking layer.Type: ApplicationFiled: November 24, 2019Publication date: October 15, 2020Inventors: Baoquan WU, Sichao ZHANG, Wei LONG
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Publication number: 20200293738Abstract: Embodiments of the present application discloses an under-screen fingerprint identification apparatus, which includes: a micro-lens array, configured to be disposed under the backlight module of the liquid crystal display screen; at least one light shielding layer, disposed under the micro-lens array, wherein the light shielding layer is provided with a plurality of light transmission holes; a photo detecting array, disposed under the light shielding layer; wherein the micro-lens array is configured to converge an optical signal with a specific direction passing through the backlight module to a plurality of light transmission holes, and transmit an optical signal with a non-specific direction passing through the backlight module to a light shielding region of the light shielding layer, wherein the optical signal with the specific direction is transmitted to the photo detecting array through the plurality of light transmission holes.Type: ApplicationFiled: December 14, 2019Publication date: September 17, 2020Inventors: Sichao ZHANG, Hao XIE