Patents by Inventor Xiuyan Li
Xiuyan Li 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: 20240096200Abstract: The present disclosure pertains to the field of health monitoring technologies, and discloses a life early warning system based on sensor acquisition, including a sign sensor, a camera, a location analysis module, an attachment location correction module, a sign detection module, an alarm feedback module, a detection optimizer, a medical comparison library, a medical platform, and a client, where the sign sensor is configured to attach to a specified location of a user body, and acquire user sign information in real time. In the present disclosure, a location of the sign sensor is analyzed by using a cascade network, which can ensure accuracy of an attachment location of each sensor, avoid reduction in precision of subsequent detection due to a sensor location abnormality, greatly improve detection accuracy, further prevent an abnormal sign report due to misusing by a child, and improve user experience.Type: ApplicationFiled: August 16, 2023Publication date: March 21, 2024Applicant: Beijing Huiyang Science & Technology Co., LtdInventors: Zhenyu SHI, Xiuyan LI
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Patent number: 11424293Abstract: The present disclosure provides a display panel. The light-emitting layers within a same sub-pixel have different thicknesses, and emit light that overlap with each other at the same time, resulting in that the peak of the overall microcavity characteristic curve has a wide range. Thus, the position of the peak of the overall microcavity characteristic curve produced by the sub-pixel can overlap with the position of the peak of the inherent brightness characteristic curve of the light-emitting layer within a wider range of angles, such that the electroluminescence spectrum changes less with change of viewing angles. Therefore, the color shift at different viewing angles is reduced, and there is no substantial difference for visual sensation for color when viewing the OLED display panel including such sub-pixels at different viewing angles.Type: GrantFiled: May 10, 2019Date of Patent: August 23, 2022Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Xiuyan Li
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Patent number: 11248904Abstract: Systems and methods for measuring a curvature radius of a sample. The methods comprise: emitting a light beam from a laser source in a direction towards a beam expander; expanding a size of the light beam emitted from the laser source to create a broad laser beam; reflecting the broad laser beam off of a curved surface of the sample; creating a plurality of non-parallel laser beams by passing the reflected broad laser beam through a grating mask or a biprism; using the plurality of non-parallel laser beams to create an interference pattern at a camera image sensor; capturing a first image by the camera image sensor; and processing the first image by an image processing device to determine the curvature radius of the sample.Type: GrantFiled: March 26, 2018Date of Patent: February 15, 2022Assignee: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEYInventors: Alexei Ermakov, Xiuyan Li, Eric Garfunkel, Leonard C. Feldman, Torgny Gustafsson
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Patent number: 11221210Abstract: Systems and methods for measuring a curvature radius of a sample. The methods comprise: emitting a light beam from a laser source in a direction towards a beam expander; expanding a size of the light beam emitted from the laser source to create a broad laser beam; reflecting the broad laser beam off of a curved surface of the sample; creating a plurality of non-parallel laser beams by passing the reflected broad laser beam through a grating mask or a biprism; using the plurality of non-parallel laser beams to create an interference pattern at a camera image sensor; capturing a first image by the camera image sensor; and processing the first image by an image processing device to determine the curvature radius of the sample.Type: GrantFiled: March 26, 2018Date of Patent: January 11, 2022Assignee: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEYInventors: Alexei Ermakov, Xiuyan Li, Eric Garfunkel, Leonard C. Feldman, Torgny Gustafsson
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Publication number: 20210335912Abstract: The present disclosure provides a display panel. The light-emitting layers within a same sub-pixel have different thicknesses, and emit light that overlap with each other at the same time, resulting in that the peak of the overall microcavity characteristic curve has a wide range. Thus, the position of the peak of the overall microcavity characteristic curve produced by the sub-pixel can overlap with the position of the peak of the inherent brightness characteristic curve of the light-emitting layer within a wider range of angles, such that the electroluminescence spectrum changes less with change of viewing angles. Therefore, the color shift at different viewing angles is reduced, and there is no substantial difference for visual sensation for color when viewing the OLED display panel including such sub-pixels at different viewing angles.Type: ApplicationFiled: May 10, 2019Publication date: October 28, 2021Inventor: Xiuyan LI
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Publication number: 20210164777Abstract: Systems and methods for measuring a curvature radius of a sample. The methods comprise: emitting a light beam from a laser source in a direction towards a beam expander; expanding a size of the light beam emitted from the laser source to create a broad laser beam; reflecting the broad laser beam off of a curved surface of the sample; creating a plurality of non-parallel laser beams by passing the reflected broad laser beam through a grating mask or a biprism; using the plurality of non-parallel laser beams to create an interference pattern at a camera image sensor; capturing a first image by the camera image sensor; and processing the first image by an image processing device to determine the curvature radius of the sample.Type: ApplicationFiled: March 26, 2018Publication date: June 3, 2021Inventors: Alexei Ermakov, Xiuyan Li, Eric Garfunkel, Leonard C. Feldman, Torgny Gustafsson
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Patent number: 11024686Abstract: The invention provides an OLED pixel structure and OLED display panel. The OLED pixel structure comprises: a pixel definition layer, layer, a first pixel electrode, an OLED light-emitting layer, and a second pixel electrode; bottom of opening area of the pixel definition layer having a three-dimensional concave curved shape, the first pixel electrode disposed at the bottom of the corresponding opening area having a corresponding shape, the OLED light-emitting layer disposed on the first pixel electrode having a corresponding shape, the second pixel electrode disposed on the pixel definition layer and a portion corresponding to the OLED light-emitting layer having a corresponding shape. The invention provides a corresponding OLED display panel. The invention reduces the difference in path length of emitted light observed at different angles when passing through the OLED light-emitting layer and transparent electrode layer, thereby reducing the brightness and color observed by human eye at different angles.Type: GrantFiled: September 18, 2018Date of Patent: June 1, 2021Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Xiuyan Li
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Publication number: 20210083022Abstract: The invention provides an OLED pixel structure and OLED display panel. The OLED pixel structure comprises: a pixel definition layer, layer, a first pixel electrode, an OLED light-emitting layer, and a second pixel electrode; bottom of opening area of the pixel definition layer having a three-dimensional concave curved shape, the first pixel electrode disposed at the bottom of the corresponding opening area having a corresponding shape, the OLED light-emitting layer disposed on the first pixel electrode having a corresponding shape, the second pixel electrode disposed on the pixel definition layer and a portion corresponding to the OLED light-emitting layer having a corresponding shape. The invention provides a corresponding OLED display panel. The invention reduces the difference in path length of emitted light observed at different angles when passing through the OLED light-emitting layer and transparent electrode layer, thereby reducing the brightness and color observed by human eye at different angles.Type: ApplicationFiled: September 18, 2018Publication date: March 18, 2021Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Xiuyan Li
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Patent number: 10608055Abstract: An AMOLED display panel comprises a display area and a non-display area. The display area has a plurality of pixel electrodes and the neighboring pixel electrodes are spaced apart from each other. The non-display area surrounds the display area and comprises a virtual pixel area and a boundary area. The virtual pixel area is close to the display area and has a plurality of virtual electrodes. At least part of the virtual electrodes are disposed close to the pixel electrodes at a boundary of the display area. The virtual electrodes and the pixel electrodes are formed by the same manufacturing process. The boundary area is close to the virtual pixel area or both the virtual pixel area and the display area. The virtual pixel area is located between the display area and the boundary area. The present invention may improve display uniformity of the AMOLED display panel.Type: GrantFiled: November 30, 2017Date of Patent: March 31, 2020Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Xiuyan Li, Peng Li
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Publication number: 20190386074Abstract: An AMOLED display panel comprises a display area and a non-display area. The display area has a plurality of pixel electrodes and the neighboring pixel electrodes are spaced apart from each other. The non-display area surrounds the display area and comprises a virtual pixel area and a boundary area. The virtual pixel area is close to the display area and has a plurality of virtual electrodes. At least part of the virtual electrodes are disposed close to the pixel electrodes at a boundary of the display area. The virtual electrodes and the pixel electrodes are formed by the same manufacturing process. The boundary area is close to the virtual pixel area or both the virtual pixel area and the display area. The virtual pixel area is located between the display area and the boundary area. The present invention may improve display uniformity of the AMOLED display panel.Type: ApplicationFiled: November 30, 2017Publication date: December 19, 2019Inventors: Xiuyan LI, Peng LI
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Patent number: 6005097Abstract: The present invention relates to methods for substantially enhancing the stereoselective synthesis of .beta.-anomeric nucleoside analogs. In methods according to the present invention, the introduction of a phenylseleno group onto a blocked lactone sugar precursor may be selected so that the desirable phenylseleno substituent is introduced on the side of the blocked lactone away from the blocking group. This stereospecific introduction of the phenylseleno group in sugar precursor allows the synthesis of nucleoside analogs and in particular, 2',3',-dideoxy- and 2',3'-dideoxy-2',3'-didehydronucleoside analogs in very high yield. In certain preferred embodiments, the preferred phenylseleno blocked lactone is obtained in an amount representing approximately 90% or more of the total amount of the stereoisomers obtained. In even more preferred embodiments, the amount of the preferred stereoisomer is at least 95%, even more preferably at least about 97% of the total amount of phenylseleno blocked lactone produced.Type: GrantFiled: June 14, 1996Date of Patent: December 21, 1999Assignee: Vion Pharmaceuticals, Inc.Inventors: Shu-Hui Chen, Xiuyan Li
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Patent number: 5869676Abstract: The present invention relates to improved, efficient chemical syntheses of 3-aminopyridine-2-carboxaldehyde thiosemicarbazone (3-AP) and 3-amino-4-methylpyridine-2-carboxaldehyde thiosemicarbazone (3-AMP).Type: GrantFiled: May 15, 1997Date of Patent: February 9, 1999Assignee: Vion Pharmaceuticals, Inc.Inventors: ChuanSheng Niu, Jun Li, Xiuyan Li, Terrence W. Doyle, Shu-Hui Chen
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Patent number: 5767134Abstract: The present invention relates to novel prodrug forms of ribonucleoside diphosphate reductase inhibitors 3-aminopyridine-2-carboxaldehyde thiosemicarbazone (3-AP) 3-amino-4-methylpyridine-2-carboxaldehyde thiosemicarbazone (3-AMP) which have increased water solubility, bioavailablity and resistance to in vivo acetylation of their amino functions. Novel compounds according to the present invention relate to those of the formula: ##STR1## where R.sup.4 is H or CH.sub.3 andR.sup.5 is CHR, benzyl or ortho or para substituted benzyl;R is H, CH.sub.3, CH.sub.2 CH.sub.3, CH.sub.2 CH.sub.2 CH.sub.3 or ##STR2## R' is a free acid phosphate, phosphate salt or an --S--S--R" group; R" is CH.sub.2 CH.sub.2 NHR.sup.6, CH.sub.2 CH.sub.2 OH, CH.sub.2 COOR.sup.7, an ortho or para substituted alkylphenyl and ortho or para substituted nitro-phenyl;R.sup.6 is H, C.sub.1 -C.sub.4 acyl group, trifluoroacetyl, benzoyl or substituted benzoyl group, andR.sup.7 is H, C.sub.1 -C.sub.4 alkyl or a benzyl or substituted benzyl.Type: GrantFiled: May 15, 1997Date of Patent: June 16, 1998Assignee: Vion Pharmaceuticals, Inc.Inventors: Jun Li, Chuan-Sheng Niu, Xiuyan Li, Terrence W. Doyle, Shu-Hui Chen