Patents by Inventor Ke Liao
Ke Liao 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: 20250138366Abstract: A backlight module, including a back plate, and a colored light source plate, a first color conversion layer and a plurality of first optical processing layers, which are on the back plate and sequentially arranged away from the back plate; where the backlight module further comprises a second color conversion layer on at least a side, away from the back plate, of one of the plurality of first optical processing layers farthest from the back plate; an orthographic projection of the second color conversion layer on the first optical processing layer is in a peripheral edge region of the first optical processing layer; and the second color conversion layer is configured to convert monochromatic light emitted by the colored light source plate and incident into the second color conversion layer, into white light.Type: ApplicationFiled: February 24, 2023Publication date: May 1, 2025Inventors: Jinhong ZHANG, Yu WANG, Wencheng LUO, Qiong YUAN, Ying ZHOU, Zhi LI, Wei RAN, Hening ZHANG, Bowen XIONG, Wenqi QUAN, Xin CEN, Ke LIAO
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Publication number: 20250085590Abstract: A backlight module includes a light-emitting substrate, at least one chip-on-film and a backplane. The light-emitting substrate includes a signal line group and a plurality of light-emitting units, and the plurality of light-emitting units are electrically connected to the signal line group. The at least one chip-on-film is arranged on a non-light exit side of the light-emitting substrate, and electrically connected to the signal line group. The backplane is disposed on the non-light exit side of the light-emitting substrate, and the at least one chip-on-film is located between the backplane and the light-emitting substrate. The backplane is provided with a groove therein, a notch of the groove faces the light-emitting substrate, and at least portion of a chip-on-film film of the at least one chip-on-film is disposed in the groove.Type: ApplicationFiled: February 20, 2023Publication date: March 13, 2025Applicants: Chongqing BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yu WANG, Wencheng LUO, Meilong HU, Jinhong ZHANG, Wenqi QUAN, Wei RAN, Zhi LI, Hening ZHANG, Bowen XIONG, Qiong YUAN, Xin CEN, Ke LIAO, Yiming CHENG
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Patent number: 12248169Abstract: Backlight module and display device are provided. Backlight module is for providing light source for display panel. Display panel has bonding side at a side of display panel in first direction. Backlight module includes: back plate, including base plate at backlight side of display panel, and first side plate at bonding side, where a side of first side plate away from base plate is bent towards direction away from center of base plate to form top plate supporting display panel; rubber frame, including second side plate at bonding side, where first opening is in middle of second side plate in extension direction of second side plate to accommodate first side plate; main circuit board, including opposite first and second ends in first direction, where first end is inserted between top plate and first side plate, and second end has first bonding area for bonding connection with display panel.Type: GrantFiled: May 23, 2022Date of Patent: March 11, 2025Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Qiong Yuan, Wencheng Luo, Zhi Li, Hening Zhang, Bowen Xiong, Ke Liao, Jinhong Zhang, Wei Ran, Yu Wang, Wenqi Quan, Xin Cen, Yao Chen, Shengjie Yin, Yansheng Sun
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Publication number: 20250067274Abstract: A centrifugal fan includes a housing and a blade assembly, wherein the blade assembly comprises a driving device and fan blades, and the fan blades have a rotation center; the housing is provided with an air inlet and an air outlet, and the housing covers the blade assembly to form a flow channel therein; the flow channel comprises a supercharging area and an opening area, wherein the first boundary between the supercharging area and the opening area is a line connecting the tongue and the center, and the second boundary between the supercharging area and the opening area is a line connecting the center and the end point of the arc-shaped side wall of the flow channel, and the opening area has a central angle greater than 180° with the center, so the centrifugal fan has a wider air outlet range and a larger air outlet volume.Type: ApplicationFiled: August 22, 2024Publication date: February 27, 2025Inventors: Yuqing Luo, Ke Liao
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Publication number: 20240411175Abstract: A light-emitting module, a light-emitting substrate, and a display device are provided. The light-emitting module includes a plurality of light-emitting elements (10), the plurality of light-emitting elements are arranged in a row direction (X) and a column direction (Y), the plurality of light-emitting elements (10) are formed into a plurality of columns of light-emitting elements, at least one column of light-emitting elements among the plurality of columns of light-emitting elements include a first light-emitting element (1), a second light-emitting element (2), a third light-emitting element (3), and a fourth light-emitting element (4) that are arranged sequentially, and the second light-emitting element (2) and the fourth light-emitting element (4) are arranged on both sides of a center connection line (100) of the first light-emitting element (1) and the third light-emitting element (3), respectively.Type: ApplicationFiled: June 29, 2022Publication date: December 12, 2024Inventors: Yu WANG, Wencheng LUO, Meilong HU, Jinhong ZHANG, Wei RAN, Wenqi QUAN, Zhi LI, Hening ZHANG, Bowen XIONG, Qiong YUAN, Xin CEN, Ke LIAO
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Publication number: 20240361514Abstract: Backlight module and display device are provided. Backlight module is for providing light source for display panel. Display panel has bonding side at a side of display panel in first direction. Backlight module includes: back plate, including base plate at backlight side of display panel, and first side plate at bonding side, where a side of first side plate away from base plate is bent towards direction away from center of base plate to form top plate supporting display panel; rubber frame, including second side plate at bonding side, where first opening is in middle of second side plate in extension direction of second side plate to accommodate first side plate; main circuit board, including opposite first and second ends in first direction, where first end is inserted between top plate and first side plate, and second end has first bonding area for bonding connection with display panel.Type: ApplicationFiled: May 23, 2022Publication date: October 31, 2024Applicants: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Qiong Yuan, Wencheng Luo, Zhi Li, Hening Zhang, Bowen Xiong, Ke Liao, Jinhong Zhang, Wei Ran, Yu Wang, Wenqi Quan, Xin Cen, Yao Chen, Shengjie Yin, Yansheng Sun
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Patent number: 12115004Abstract: Disclosed are a method and apparatus for processing physiological signals. The method is inclusive of steps of obtaining the physiological signals; grouping the physiological signals based on their sampling frequencies and/or generation mechanisms, so as to acquire grouping results; and compressing, based on the grouping results, each group of physiological signals.Type: GrantFiled: August 25, 2021Date of Patent: October 15, 2024Assignee: Ricoh Company, Ltd.Inventors: Luyun Qin, Ke Liao, Xiaojing Fan, Jinting Hou, Wei Wang
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Publication number: 20240250695Abstract: A 9B/10B encoding method is used for encoding a 9-bit source sequence set, including first type, second type and third type of 9-bit source sequence sets, into a 10-bit target sequence set. The first type of 9-bit source sequence set only includes 9-bit source sequences with difference values of 1 and ?1. After inserting 1-bit data “0” or “1” in each sequence, each sequence is encoded as a 10-bit target balanced sequence; the second type of 9-bit source sequence set alternatively includes only 9-bit source sequences with difference values of 3 or ?3. After inserting 1-bit data “0” or “1” into each sequence, each sequence is encoded into a pair of 10-bit target unbalanced sequences with a difference value of ±2; each sequence in the third type of 9-bit source sequence set is encoded as a pair of 10-bit target unbalanced sequences that are opposite numbers for each other.Type: ApplicationFiled: January 13, 2022Publication date: July 25, 2024Inventors: Ke LIAO, Yuanlong WANG
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Patent number: 11734790Abstract: Disclosed are a method and apparatus for recognizing a landmark in a panoramic image. The method includes steps of performing projection transformation on the panoramic image so as to generate a projection image; conducting semantic segmentation on the projection image so as to determine a landmark region and a road surface region; correcting distortion in the landmark region so as to produce a corrected landmark region; and recognizing the landmark in the corrected landmark region.Type: GrantFiled: March 9, 2021Date of Patent: August 22, 2023Assignee: Ricoh Company, Ltd.Inventors: Ke Liao, Weitao Gong, Hong Yi, Wei Wang
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Patent number: 11601426Abstract: A device authentication method, a service access control method, a device, and a non-transitory computer-readable recording medium are provided. In the device authentication method, an authentication request device issues an authentication request transaction in a distributed ledger, and an authentication response device reads the authentication request transaction in the distributed ledger and performs authentication. Thus, no third-party authentication center or coordinate device is required to participate in an authentication handshake process, thereby reducing deployment overhead of an authentication system and improving efficiency of authentication and access service control.Type: GrantFiled: April 16, 2020Date of Patent: March 7, 2023Assignee: Ricoh Company, Ltd.Inventors: Xiaojing Fan, Wei Wang, Haihua Yu, Ke Liao, Liyan Liu
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Publication number: 20220061771Abstract: Disclosed are a method and apparatus for processing physiological signals. The method is inclusive of steps of obtaining the physiological signals; grouping the physiological signals based on their sampling frequencies and/or generation mechanisms, so as to acquire grouping results; and compressing, based on the grouping results, each group of physiological signals.Type: ApplicationFiled: August 25, 2021Publication date: March 3, 2022Applicant: Ricoh Company, Ltd.Inventors: Luyun Qin, Ke Liao, Xiaojing Fan, Jinting Hou, Wei Wang
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Publication number: 20210295478Abstract: Disclosed are a method and apparatus for recognizing a landmark in a panoramic image. The method includes steps of performing projection transformation on the panoramic image so as to generate a projection image; conducting semantic segmentation on the projection image so as to determine a landmark region and a road surface region; correcting distortion in the landmark region so as to produce a corrected landmark region; and recognizing the landmark in the corrected landmark region.Type: ApplicationFiled: March 9, 2021Publication date: September 23, 2021Applicant: Ricoh Company, Ltd.Inventors: Ke LIAO, Weitao Gong, Hong Yi, Wei Wang
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Publication number: 20200336481Abstract: A device authentication method, a service access control method, a device, and a non-transitory computer-readable recording medium are provided. In the device authentication method, an authentication request device issues an authentication request transaction in a distributed ledger, and an authentication response device reads the authentication request transaction in the distributed ledger and performs authentication. Thus, no third-party authentication center or coordinate device is required to participate in an authentication handshake process, thereby reducing deployment overhead of an authentication system and improving efficiency of authentication and access service control.Type: ApplicationFiled: April 16, 2020Publication date: October 22, 2020Applicant: Ricoh Company, Ltd.Inventors: Xiaojing FAN, Wei WANG, Haihua YU, Ke LIAO, Liyan LIU
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Patent number: 10491601Abstract: An area restricted access system, method, and non-transitory computer-readable storage medium are provided. The system includes an access device and a first service device located in a service area, wherein the access device locates a user device via a first type of wireless signals and obtains a first location parameter. The first service device monitors and locates the user device via a second type of wireless signals and obtains a second location parameter. The area restricted access system generates a modified location parameter based on the first and the second location parameters and determines whether the user device is within or out of the service area based on the modified location parameter. The first service device allows the user device to access the first service device when the user device is within the service area, and forbids the user device to access the first service device when the user device is out of the service area.Type: GrantFiled: July 1, 2016Date of Patent: November 26, 2019Assignee: RICOH COMPANY, LTD.Inventors: Bin Da, Wei Wang, Haihua Yu, Ke Liao, Linju Yang
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Patent number: 10123158Abstract: Disclosed is a method of recognizing a user of at least one mobile device by using an imaging device. The method comprises a first obtainment step of obtaining first positional information of the user of the at least one mobile device by using the imaging device; a second obtainment step of obtaining both second positional information and ID information of the at least one mobile device; a comparison step of comparing the first and second positional information so as to obtain a comparison result; and a determination step of determining, based on the comparison result, whether or not to let the ID information of the at least one mobile device be associated with the user of the at least one mobile device.Type: GrantFiled: February 1, 2016Date of Patent: November 6, 2018Assignee: Ricoh Company, Ltd.Inventors: Ke Liao, Bin Da, Wei Wang, Haihua Yu, Xin Wang
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Patent number: 9903943Abstract: Disclosed is a method of estimating the distance between two nodes.Type: GrantFiled: October 29, 2015Date of Patent: February 27, 2018Assignee: RICOH COMPANY, LTD.Inventors: Xiaomei Lu, Bin Da, Wei Wang, Linju Yang, Ke Liao
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Patent number: 9772396Abstract: Disclosed is a relative orientation angle calculation method comprising steps of obtaining inertial sensor data of first and second mobile devices, the first mobile device being capable of sending a first signal to the second mobile device; obtaining a sending frequency that the first signal has when the first mobile device sends the first signal to the second mobile device; obtaining a receipt frequency that the first signal has when the second mobile device receives the first signal sent from the first mobile device, the first signal receiving influence of the Doppler effect in a sending process in which the first signal is sent to the second mobile device from the first mobile device; and calculating, based on the inertial sensor data, the sending frequency, and the receipt frequency, a relative orientation angle between the first and second mobile devices.Type: GrantFiled: February 2, 2016Date of Patent: September 26, 2017Assignee: RICOH COMPANY, LTD.Inventors: Ke Liao, Bin Da, Wei Wang, Haihua Yu, Hong Yi
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Patent number: 9667625Abstract: Disclosed is an access control method of an area restricted network system including a central control device and at least one area restricted network. Each area restricted network includes at least a master node. The method comprises a detection step of detecting that an access device has entered into an area restricted network in the area restricted network system; a receipt step of receiving, by a master node in the area restricted network, an authentication information request sent by the access device; a sending step of, in response to the authentication information request, generating and sending the authentication information for the access device by the master node in the area restricted network; and a request step of, by the access device, receiving the authentication information, and then utilizing the authentication information so as to send an authentication request to the central control device.Type: GrantFiled: July 2, 2015Date of Patent: May 30, 2017Assignee: RICOH COMPANY, LTD.Inventors: Bin Da, Wei Wang, Linju Yang, Ke Liao, Yan Sun
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Publication number: 20170006043Abstract: An area restricted access system, method, and non-transitory computer-readable storage medium are provided. The system includes an access device and a first service device located in a service area, wherein the access device locates a user device via a first type of wireless signals and obtains a first location parameter. The first service device monitors and locates the user device via a second type of wireless signals and obtains a second location parameter. The area restricted access system generates a modified location parameter based on the first and the second location parameters and determines whether the user device is within or out of the service area based on the modified location parameter. The first service device allows the user device to access the first service device when the user device is within the service area, and forbids the user device to access the first service device when the user device is out of the service area.Type: ApplicationFiled: July 1, 2016Publication date: January 5, 2017Inventors: Bin DA, Wei WANG, Haihua YU, Ke LIAO, Linju YANG
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Publication number: 20160231415Abstract: Disclosed is a relative orientation angle calculation method comprising steps of obtaining inertial sensor data of first and second mobile devices, the first mobile device being capable of sending a first signal to the second mobile device; obtaining a sending frequency that the first signal has when the first mobile device sends the first signal to the second mobile device; obtaining a receipt frequency that the first signal has when the second mobile device receives the first signal sent from the first mobile device, the first signal receiving influence of the Doppler effect in a sending process in which the first signal is sent to the second mobile device from the first mobile device; and calculating, based on the inertial sensor data, the sending frequency, and the receipt frequency, a relative orientation angle between the first and second mobile devices.Type: ApplicationFiled: February 2, 2016Publication date: August 11, 2016Applicant: Ricoh Company, Ltd.Inventors: Ke LIAO, Bin DA, Wei WANG, Haihua YU, Hong YI