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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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
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Publication number: 20130264942Abstract: 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: September 27, 2012Publication date: October 10, 2013Applicant: I/O Controls CorporationInventors: Baixiong Kuang, Jerry Lin, Yongchang Wang, Chin Seong Khor
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Publication number: 20130201704Abstract: 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: February 3, 2012Publication date: August 8, 2013Inventors: Jerry Lin, Yongchang Wang, Ren-Cheng Chao, Chin-Tin Hsiao, Chih-Li Wang
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Patent number: 8400061Abstract: 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 5, 2007Date of Patent: March 19, 2013Assignee: I/O Controls CorporationInventors: Baixiong Kuang, Jerry Lin, Yongchang Wang, Chin Seong Khor