Patents by Inventor Yongchang Wang
Yongchang 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: 20240147276Abstract: Implementations of the present disclosure relate to link failure detection. In the implementations, an access point (AP) determines a power save mode of each of a plurality of links established between the AP and a station. If at least two links of the plurality of links are in a power save mode, the AP determines a detection time period for detecting signals based on beacon intervals of the at least two links. The AP then transmits detection signals to the station in the at least two links during the detection time period. The AP determines connectivity of the at least two links based on responses to the detection signals received from the station. In this way, all the failed links in power save mode can be efficiently detected, thereby facilitating transmission scheduling between the AP and station.Type: ApplicationFiled: October 28, 2022Publication date: May 2, 2024Inventors: Xuguang JIA, Yongchang GUO, Zhenlei WANG
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Publication number: 20240142175Abstract: Disclosed are an unblocking apparatus for a furnace discharging pipe and a use method. The unblocking apparatus includes a rail, a rail car that may move along the rail, an unblocking drive mechanism arranged on the rail car, a heat-unblocking component, a cold-unblocking component, and a material receiving component that is used to receive a blocking material in the discharging pipe, and a drive end of the unblocking drive mechanism is detachably connected with one end of the heat-unblocking component and the cold-unblocking component respectively. The present application effectively handles different blockage situations of the furnace discharging pipe by connecting the unblocking drive mechanism with an unblocking rod capable of heat-unblocking and a drilling rod capable of cold-unblocking, thereby two modes of heat-unblocking and cold-unblocking are performed on the furnace discharging pipe; and the discharging pipe may be unblocked by a remote operation.Type: ApplicationFiled: October 23, 2023Publication date: May 2, 2024Applicants: China Nuclear Sichuan Environmental Protection Engineering Co., Ltd., China Building Materials Academy, China Nuclear Power Engineering Co., Ltd.Inventors: Weidong XU, Yu CHANG, Yongchang ZHU, Hong DUAN, Chunyu TIAN, Wei WU, Debo YANG, Qingbin ZHAO, Shuaizhen WU, Lin WANG, Zhu CUI, Heyi GUO, Maosong FAN, Yuancheng SUN, Jie MEI, Xiaoli AN, Yongxiang ZHAO, Qinda LIU
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Patent number: 11972330Abstract: Disclosed are techniques for quantifying physical qualities of a ball returned by a player using a loop drive technique, such as in table tennis, and generating a corresponding quantitative summary of the overall quality of the loop drive technique based on the quantified physical qualities. Image processing techniques are applied to historical video recordings of balls returned using loop drive techniques to quantify physical properties of said balls. A machine learning model is generated using the quantified physical properties to determine relative significance of specific qualities and their corresponding quantified values to the overall quality or success of loop drive techniques, such as in table tennis matches.Type: GrantFiled: September 30, 2020Date of Patent: April 30, 2024Assignee: International Business Machines CorporationInventors: Chuan Ran, Junhui Wang, Guandong Zhu, Yongchang Cui, Shuyan Lu, Yang Yang
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Patent number: 9964261Abstract: A message board lighting fixture has semiconductor based lighting elements for illumination and an integrated electronic message board display for displaying content to occupants of a transit vehicle or other area. The lighting fixture may include a concave fixture frame having a reflective interior, with lighting elements positioned along the length of the frame to provide area illumination. The electronic display may be mounted on a projecting frame substantially centrally within the cavity of the concave fixture frame, and may be augmented with additional semiconductor based lighting elements for backlighting. A detachable lens cover may have a diffusive portion and a separate transparent region over the electronic display area.Type: GrantFiled: March 12, 2014Date of Patent: May 8, 2018Assignee: I/O Controls CorporationInventors: Jeffrey Ying, Jerry Lin, Yongchang Wang
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Publication number: 20170050560Abstract: A transit vehicle lighting system has a plurality of LED-based lighting fixtures for providing interior illumination. A control network comprises a plurality of slave nodes for controlling the LED-based lighting fixtures, and a master node for controlling the slave nodes. The master node may be connected to the slave nodes by a combined power/communication bus in a daisy chain fashion. The slave node may include a power regulator and a controller for providing a target current command to the power regulator, and may adjust the target current based upon temperature measurementsor a recorded age of the LEDs. An optical sensor may provide automatic dimming. A reduced number of LEDs may be used in an emergency mode. The lighting fixture may include a ceiling panel fixture and a riser panel attachable by way of a hinge mechanism.Type: ApplicationFiled: November 9, 2016Publication date: February 23, 2017Inventors: Baixiong Kuang, Jerry Lin, Yongchang Wang, Chin Seong Khor
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Patent number: 9562662Abstract: A vehicle headlight and control system for a bus or large vehicle includes a headlight fixture with a center or low beam light source and side illumination light source operated independently. The side illumination light source may be activated when the vehicle is turning, as detected by the vehicle speed and steering shaft turn angle, to provide supplemental illumination. Both right and left side illumination sources may be provided, and may comprise LED light elements. The system may also include an audible sound generator to alert pedestrians when the vehicle is turning.Type: GrantFiled: March 30, 2015Date of Patent: February 7, 2017Assignee: I/O Controls CorporationInventors: Jerry Lin, Yongchang Wang, Ren-Cheng Chao, Chin-Tin Hsiao, Chih-Li Wang
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Publication number: 20160185288Abstract: A transit vehicle lighting system has a plurality of LED-based lighting fixtures for providing interior illumination. A control network comprises a plurality of slave nodes for controlling the LED-based lighting fixtures, and a master node for controlling the slave nodes. The master node may be connected to the slave nodes by a combined power/communication bus in a daisy chain fashion. The slave node may include a power regulator and a controller for providing a target current command to the power regulator, and may adjust the target current based upon temperature measurements or a recorded age of the LEDs. An optical sensor may provide automatic dimming. A reduced number of LEDs may be used in an emergency mode. The lighting fixture may include a ceiling panel fixture and a riser panel attachable by way of a hinge mechanism.Type: ApplicationFiled: July 10, 2015Publication date: June 30, 2016Applicant: I/O Controls CorporationInventors: Baixiong Kuang, Jerry Lin, Yongchang Wang, Chin Seong Khor
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Patent number: 9243759Abstract: An LED-based lighting unit for retrofitting a fluorescent light fixture in a transit vehicle has a concave frame or structure conforming to the shape of the fluorescent lighting fixture cavity, connector pins on either end of the frame for secure attachment to sockets of the fluorescent fixture, a plurality of LED modules for illuminating an area of a transit vehicle, a power adapter for receiving and converting an input power supply signal, and a diffusive lens cover. The frame may have rear fins or other features for facilitating dissipation of heat generated by the LEDs. A controller adjusts the intensity of the LEDs based on a reading from a temperature sensor and on a manual brightness setting. The change in light output may be accomplished by reducing a duty cycle of a pulse width modulated (PWM) waveform supplying the LEDs.Type: GrantFiled: October 22, 2012Date of Patent: January 26, 2016Assignee: I/O Controls CorporationInventors: Jerry Lin, Yongchang Wang
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Publication number: 20150338045Abstract: A vehicle headlight and control system for a bus or large vehicle includes a headlight fixture with a center or low beam light source and side illumination light source operated independently. The side illumination light source may be activated when the vehicle is turning, as detected by the vehicle speed and steering shaft turn angle, to provide supplemental illumination. Both right and left side illumination sources may be provided, and may comprise LED light elements. The system may also include an audible sound generator to alert pedestrians when the vehicle is turning.Type: ApplicationFiled: March 30, 2015Publication date: November 26, 2015Applicant: I/O Controls CorporationInventors: Jerry Lin, Yongchang Wang, Ren-Cheng Chao, Chin-Tin Hsiao, Chih-Li Wang
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Patent number: 9096168Abstract: A transit vehicle lighting system has a plurality of LED-based lighting fixtures for providing interior illumination. A control network comprises a plurality of slave nodes for controlling the LED-based lighting fixtures, and a master node for controlling the slave nodes. The master node may be connected to the slave nodes by a combined power/communication bus in a daisy chain fashion. The slave node may include a power regulator and a controller for providing a target current command to the power regulator, and may adjust the target current based upon temperature measurements or a recorded age of the LEDs. An optical sensor may provide automatic dimming. A reduced number of LEDs may be used in an emergency mode. The lighting fixture may include a ceiling panel fixture and a riser panel attachable by way of a hinge mechanism.Type: GrantFiled: February 14, 2013Date of Patent: August 4, 2015Assignee: I/O Controls CorporationInventors: Baixiong Kuang, Jerry Lin, Yongchang Wang, Chin Seong Khor
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Publication number: 20150207286Abstract: A phone mount system includes a slot installer that installs into a slot of a CD player or cassette player. A controller and circuitry assembly includes a plurality of connector plugs. Each connector plug in the plurality of connector plugs has a different charger interface than other connector plugs in the plurality of connector plugs.Type: ApplicationFiled: January 22, 2014Publication date: July 23, 2015Inventors: Liang Chen, Yongchang Wang
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Patent number: 9079479Abstract: An automated vehicle sunshade system includes a roller on which is mounted shield material. A motor opens the shield material so as to block sunlight entering a vehicle through a window.Type: GrantFiled: October 21, 2013Date of Patent: July 14, 2015Inventors: Liang Chen, Yongchang Wang
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Publication number: 20150158421Abstract: A transit vehicle lighting system has a plurality of LED-based lighting fixtures for providing interior illumination. A control network comprises a plurality of slave nodes for controlling the LED-based lighting fixtures, and a master node for controlling the slave nodes. The master node may be connected to the slave nodes by a combined power/communication bus in a daisy chain fashion. The slave node may include a power regulator and a controller for providing a target current command to the power regulator, and may adjust the target current based upon temperature measurementsor a recorded age of the LEDs. An optical sensor may provide automatic dimming. A reduced number of LEDs may be used in an emergency mode. The lighting fixture may include a ceiling panel fixture and a riser panel attachable by way of a hinge mechanism.Type: ApplicationFiled: June 17, 2014Publication date: June 11, 2015Inventors: Baixiong Kuang, Jerry Lin, Yongchang Wang, Chin Seong Khor
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Publication number: 20150107783Abstract: An automated vehicle sunshade system includes a roller on which is mounted shield material. A motor opens the shield material so as to block sunlight entering a vehicle through a window.Type: ApplicationFiled: October 21, 2013Publication date: April 23, 2015Inventors: Liang Chen, Yongchang Wang
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Patent number: 8992056Abstract: A vehicle headlight and control system for a bus or large vehicle includes a headlight fixture with a center or low beam light source and side illumination light source operated independently. The side illumination light source may be activated when the vehicle is turning, as detected by the vehicle speed and steering shaft turn angle, to provide supplemental illumination. Both right and left side illumination sources may be provided, and may comprise LED light elements. The system may also include an audible sound generator to alert pedestrians when the vehicle is turning.Type: GrantFiled: February 3, 2012Date of Patent: March 31, 2015Assignee: I/O Controls CorporationInventors: Jerry Lin, Yongchang Wang, Ren-Cheng Chao, Chin-Tin Hsiao, Chih-Li Wang
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Patent number: 8947677Abstract: A computer-implemented process, system, and computer-readable storage medium having stored thereon, program code and instructions for 3-D triangulation-based image acquisition of a contoured surface/object-of-interest under observation by at least one camera, by projecting onto the surface-of-interest a multi-frequency pattern comprising a plurality of pixels representing at least a first and second superimposed sinusoid projected simultaneously, each of the sinusoids represented by the pixels having a unique temporal frequency and each of the pixels projected to satisfy I n p = A p + ? k = 1 K ? B k p ? cos ? ( 2 ? ? ? ? f k ? y p + 2 ? ? ? ? kn N ) Eq . ? ( 1.1 ) where Inp is the intensity of a pixel in the projector for nth projected image in a particular instant in time; K is an integer representing the number of component sinusoids (e.g.Type: GrantFiled: August 8, 2011Date of Patent: February 3, 2015Assignee: University of Kentucky Research FoundationInventors: Kai Liu, Yongchang Wang, Daniel L. Lau, Laurence G. Hassebrook
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Publication number: 20140267975Abstract: A message board lighting fixture has semiconductor based lighting elements for illumination and an integrated electronic message board display for displaying content to occupants of a transit vehicle or other area. The lighting fixture may include a concave fixture frame having a reflective interior, with lighting elements positioned along the length of the frame to provide area illumination. The electronic display may be mounted on a projecting frame substantially centrally within the cavity of the concave fixture frame, and may be augmented with additional semiconductor based lighting elements for backlighting. A detachable lens cover may have a diffusive portion and a separate transparent region over the electronic display area.Type: ApplicationFiled: March 12, 2014Publication date: September 18, 2014Inventors: Jeffrey Ying, Jerry Lin, Yongchang Wang
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Patent number: 8786191Abstract: A transit vehicle lighting system has a plurality of LED-based lighting fixtures for providing interior illumination. A control network comprises a plurality of slave nodes for controlling the LED-based lighting fixtures, and a master node for controlling the slave nodes. The master node may be connected to the slave nodes by a combined power/communication bus in a daisy chain fashion. The slave node may include a power regulator and a controller for providing a target current command to the power regulator, and may adjust the target current based upon temperature measurements or a recorded age of the LEDs. An optical sensor may provide automatic dimming. A reduced number of LEDs may be used in an emergency mode. The lighting fixture may include a ceiling panel fixture and a riser panel attachable by way of a hinge mechanism.Type: GrantFiled: September 27, 2012Date of Patent: July 22, 2014Assignee: I/O Controls CorporationInventors: Baixiong Kuang, Jerry Lin, Yongchang Wang, Chin Seong Khor
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Publication number: 20140112014Abstract: An LED-based lighting unit for retrofitting a fluorescent light fixture in a transit vehicle has a concave frame or structure conforming to the shape of the fluorescent lighting fixture cavity, connector pins on either end of the frame for secure attachment to sockets of the fluorescent fixture, a plurality of LED modules for illuminating an area of a transit vehicle, a power adapter for receiving and converting an input power supply signal, and a diffusive lens cover. The frame may have rear fins or other features for facilitating dissipation of heat generated by the LEDs. A controller adjusts the intensity of the LEDs based on a reading from a temperature sensor and on a manual brightness setting. The change in light output may be accomplished by reducing a duty cycle of a pulse width modulated (PWM) waveform supplying the LEDs.Type: ApplicationFiled: October 22, 2012Publication date: April 24, 2014Inventors: Jerry Lin, Yongchang Wang
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Publication number: 20140055030Abstract: A transit vehicle lighting system has a plurality of LED-based lighting fixtures for providing interior illumination. A control network comprises a plurality of slave nodes for controlling the LED-based lighting fixtures, and a master node for controlling the slave nodes. The master node may be connected to the slave nodes by a combined power/communication bus in a daisy chain fashion. The slave node may include a power regulator and a controller for providing a target current command to the power regulator, and may adjust the target current based upon temperature measurements or a recorded age of the LEDs. An optical sensor may provide automatic dimming. A reduced number of LEDs may be used in an emergency mode. The lighting fixture may include a ceiling panel fixture and a riser panel attachable by way of a hinge mechanism.Type: ApplicationFiled: February 14, 2013Publication date: February 27, 2014Applicant: I/O Controls CorporationInventors: Baixiong Kuang, Jerry Lin, Yongchang Wang, Chin Seong Khor