Abstract: Embodiments of an end-cap with retractable and rotatable pin for an LED tube are described. In one aspect, an end-cap for an LED tube may include an end-cap housing, an end-cap base assembly, a power-pin assembly, and at least one elastic component. The power-pin assembly may include at least one power pin thereon and configured to connect to an external power source. The power-pin assembly may protrude out of a center opening of the end-cap housing. The end-cap base assembly may have at least one power connector one end of which is connected to the body of the LED tube to receive electric power. The at least one elastic components may reside inside the end-cap housing and is placed between the power-pin assembly and the end-cap base assembly. The power connector may connect to the at least one power pin when the at least one elastic component is pressed.

Abstract: An LED lighting device includes at least one LED light source emitting light, at least one rechargeable battery for supplying power when external power is not available, at least one electrical connector for connecting the rechargeable battery to external power source for recharging, and at least one control mechanism for switching the operation mode of the device. By setting the operation mode via the control mechanism, the LED light device can be used for more than one intended purposes such as regular lighting, emergency lighting, and flashlight.

Abstract: Embodiments of an end-cap for an LED tube are described. In one aspect, an end-cap for an LED tube may include an end-cap housing, at least one elastic component, and a connecting assembly. The end-cap housing may include at least one power pin thereon and configured to connect to an external power source. The elastic component may reside inside the end-cap housing. The end-cap housing may connect to a first end of the connecting assembly via an extendable connection and a second end of the connecting assembly opposite to the first end thereof connects to a body of the LED tube through at least one power connector. The power connector may connect to the at least one power pin when the elastic component is pressed. The power connector may remain separate from the at least one power pin when the elastic component is not pressed.

Abstract: Various embodiments of methods and systems of proactive monitoring of LED lights are described herein. An LED light monitoring system may include a specification database of LED lamps and drivers, a usage database that records the usage of LED lamps and drivers, a data acquisition subsystem that obtains the identity and the usage data of LED lamps or drivers in use, and a data processing subsystem that calculates, for each LED lamp, its current lumen output statistically and, for each LED driver, its remaining lifetime, and provides replacement recommendations for LED lamps and drivers.

Abstract: An add-on smart controller for an LED lighting device includes a power input port, a power output port, a housing, a control unit in the housing, and at least one control signal receiver in the control unit. A power input of the control unit is connected to the power input port. A power output of the control unit is connected to the power output port. The control signal receiver is configured to receive external control signals. The control unit is configured to activate the power output port to supply output voltage responsive to the control unit receiving an ON signal. The control unit is configured to deactivate the power output port responsive to the control unit receiving an OFF signal.

Abstract: Embodiments of a plug-and-play control module for a LED lighting device are described. In one aspect, a plug-and-play control module for a LED lighting device includes a main body and a control module socket. The control module socket includes an AC socket and a DC socket. The main body includes a housing, a control unit, an input port and an output port. The control unit resides inside the housing. A portion of the input port and a portion of the output port protrude outside the housing and connect to the control module socket. The control unit controls an output current flowing through the output socket and thus the on/off of the LED lighting device.

Abstract: A lighting device includes a light source and an enclosure enclosing the light source wherein a portion of the enclosure has a focus-forming curvature such that when the light from the light source is reflected off the enclosure element the reflected light intersects at the focus of the curvature and creates a virtual light source at the focus. A reflective coating or a reflective material may be applied to the enclosure, or a ball lens may be used around the light source, to increase the intensity of the reflected light and of the virtual light source. A diffuser may be used to change the size and shape of the virtual light source.

Abstract: An LED lighting device includes at least one LED light source emitting light, at least one rechargeable battery for supplying power when external power is not available, at least one electrical connector for connecting the rechargeable battery to external power source for recharging, and at least one control mechanism for switching the operation mode of the device. By setting the operation mode via the control mechanism, the LED light device can be used for more than one intended purposes such as regular lighting, emergency lighting, and flashlight.

Abstract: A highly parallel cyclic redundancy code generator has p precalculated k-bit remainder polynomials loaded in a lookup table. A cyclic redundancy code register has a p-bit portion and a k-bit portion. An input data message is input to an input XOR gate together with the contents of the p-bit portion to generate a p-bit result for storage in the p-bit portion. The content of the p-bit portion is used to control which k-bit remainder polynomials from the lookup table are to be parallel XOR'd to produce a partial cyclic redundancy code that is stored in the k-bit portion. The contents of the CRC register are shifted to the left and the process repeated until all of the bits of the input data message have been processed. The contents of the k-bit portion are then output as the CRC for the input data message.

Abstract: A system for accessing the Internet based on an Internet information pointer encoded in a video signal. The system includes a video display adapted to display a video portion of the video signal. The system also includes an Internet access device including a decoder adapted to extract the Internet information pointer encoded in the video signal, the access device being adapted to connect to the Internet to access the Internet based on the extracted Internet information pointer.