Chin Seong Khor

US Patent:

8297791, Oct 30, 2012

Filed:

May 24, 2011

Appl. No.:

13/114997

Inventors:

Baixiong Kuang - Diamond Bar CA, US
Jerry Lin - Rowland Heights CA, US
Yongchang Wang - Diamond Bar CA, US
Chin Seong Khor - Monterey Park CA, US

Assignee:

I/O Controls Corporation - Azusa CA

International Classification:

F21S 4/00

US Classification:

36224902, 362459, 362479

Abstract:

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.

US Patent:

8400061, Mar 19, 2013

Filed:

Sep 5, 2007

Appl. No.:

11/850659

Inventors:

Baixiong Kuang - Diamond Bar CA, US
Jerry Lin - Rowland Heights CA, US
Yongchang Wang - Diamond Bar CA, US
Chin Seong Khor - Monterey Park CA, US

Assignee:

I/O Controls Corporation - Azusa CA

International Classification:

B60Q 1/14

US Classification:

315 77, 315 82, 315291

Abstract:

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.

US Patent:

20130264942, Oct 10, 2013

Filed:

Sep 27, 2012

Appl. No.:

13/629041

Inventors:

Baixiong Kuang - Diamond Bar CA, US
Jerry Lin - Rowland Heights CA, US
Yongchang Wang - Diamond Bar CA, US
Chin Seong Khor - Monterey Park CA, US

Assignee:

I/O Controls Corporation - Azusa CA

International Classification:

H05B 33/08

US Classification:

315 77

Abstract:

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.

US Patent:

20140055030, Feb 27, 2014

Filed:

Feb 14, 2013

Appl. No.:

13/767792

Inventors:

Baixiong Kuang - Diamond Bar CA, US
Jerry Lin - Rowland Heights CA, US
Yongchang Wang - Diamond Bar CA, US
Chin Seong Khor - Monterey Park CA, US

Assignee:

I/O Controls Corporation - Azusa CA

International Classification:

B60Q 3/02

US Classification:

315 77

Abstract:

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.

US Patent:

20170050560, Feb 23, 2017

Filed:

Nov 9, 2016

Appl. No.:

15/347720

Inventors:

- Azusa CA, US
Jerry Lin - Rowland Heights CA, US
Yongchang Wang - Diamond Bar CA, US
Chin Seong Khor - Monterey Park CA, US

International Classification:

B60Q 3/02
H05B 33/08
H05B 37/02

Abstract:

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.

US Patent:

20160185288, Jun 30, 2016

Filed:

Jul 10, 2015

Appl. No.:

14/796734

Inventors:

- Azusa CA, US
Jerry Lin - Rowland Heights CA, US
Yongchang Wang - Diamond Bar CA, US
Chin Seong Khor - Monterey Park CA, US

Assignee:

I/O Controls Corporation - Azusa CA

International Classification:

B60Q 3/02
H05B 33/08
H05B 37/02

Abstract:

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.

US Patent:

20150158421, Jun 11, 2015

Filed:

Jun 17, 2014

Appl. No.:

14/307460

Inventors:

- Azusa CA, US
Jerry Lin - Rowland Heights CA, US
Yongchang Wang - Diamond Bar CA, US
Chin Seong Khor - Monterey Park CA, US

International Classification:

B60Q 3/02
H05B 33/08
H05B 37/02

Abstract:

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.