Abstract: A power distribution system utilizes direct-current (DC) electrical power. A distribution cable carries DC power from a distribution unit to an edge device. The edge device provides a communication connector with DC power for use by a load device. The edge device optionally includes an energy storage device, such as a rechargeable battery, to allow the edge device to provide more power to the load device than it is receiving from the power distribution unit for some period of time.

Abstract: A lighting module includes a connector having a first contact and a second contact, a first device that emits ultraviolet (UV) light, and a second device that emits visible light. The UV light emitted by the first device is in a first wavelength range of 200-315 nm and the visible light emitted by the second device is in a second wavelength range of 400-750 nm. The first device emits substantially no light at a wavelength greater than 550 nm. Both the first device and the second device are coupled to the first contact. The lighting module may be used in a disinfection device.

Abstract: A power distribution system utilizes direct-current (DC) electrical power. A distribution cable carries DC power from a distribution unit to an edge device. The edge device provides a communication connector with DC power for use by a load device. The edge device optionally includes an energy storage device, such as a rechargeable battery, to allow the edge device to provide more power to the load device than it is receiving from the power distribution unit for some period of time.

Abstract: Power is provided to a powered device (PD) over a data cable from power sourcing equipment (PSE). A signature resistance of the device is detected through the data cable. If the signature resistance is in a first range, power is provided to the PD from the PSE over the data cable in a matter compliant with an IEEE standard for power over Ethernet (PoE). If the signature resistance is in a second range, information is received from the PD over the data cable and the existence of the PD is exposed by the PSE over a computer network. A command to control the PD is received by the PSE over the computer network and a power signal is provided to the PD from the PSE based on the command and the received information.

Abstract: An LED load is specified to be driven at a first voltage level for maximum brightness. A driver for the LED load determines a first current level consumed by the LED load while the first voltage level is applied to the LED load. Information is received to set a brightness level of the LED load and a second current level is calculated based on the first current level and the information received. Electrical power is then provided to the LED load at the second current level. A second voltage level of the electrical power provided to the LED with the second current level is unregulated and is less than the first voltage level.

Abstract: A lighting system includes a master lighting device, a control unit, and one or more slave lighting devices. The master lighting device includes a power input, a light emitting component, a memory device, a processor, and a network interface to communicate over a network. The memory device stores computer readable code that when executed by the processor, causes the master lighting device to receive a message that includes brightness information over the network, receive information regarding a characteristic of power received at the power input, control a brightness level of the light emitting component based on the brightness information and the information regarding the characteristic of the power, and send a message to the slave lighting devices to control their brightness level. The control unit includes a network interface send the message that includes the brightness information over the network.

Abstract: A webcam privacy shield is magnetically attached to a bezel of an electronic display that includes a webcam. The webcam privacy shield is positioned in either a shielded position where light is blocked from entering the lens of the webcam by positioning an opaque portion of the webcam privacy shield over the lens of the webcam, or an operating position where light is allowed to enter the lens of the webcam by positioning a transparent portion of the webcam privacy shield of the lens of the webcam. Sliding the webcam privacy shield between the shielded position and the operating position allows the user to selectively maintain their privacy from the webcam, or use the webcam.

Abstract: An apparatus for generating light may be comprised of a light source with a lens interposed in a light path from the light source. The lens may be comprised of two or more sections wherein at least one section may be comprised of smart glass. Electrical circuitry may be configured to control a transparency state of the smart glass lens sections. Another embodiment may have two reflectors wherein one of the reflectors may be interposed between the light source and the other reflector and may be comprised of smart glass with a transparent state and a reflective state so that two different reflection patterns may be created. A method for illumination wherein at least one area's illumination is controlled by a section of smart glass is also disclosed.

Abstract: A lighting system includes a master lighting device, a control unit, and one or more slave lighting devices. The master lighting device includes a power input, a light emitting component, a memory device, a processor, and a network interface to communicate over a network. The memory device stores computer readable code that when executed by the processor, causes the master lighting device to receive a message that includes brightness information over the network, receive information regarding a characteristic of power received at the power input, control a brightness level of the light emitting component based on the brightness information and the information regarding the characteristic of the power, and send a message to the slave lighting devices to control their brightness level. The control unit includes a network interface send the message that includes the brightness information over the network.

Abstract: Various gestures, or aspects of the situation, such as location, attitude and/or movement, of a handheld controller are used to control various parameters of lighting, such as brightness or color.

Abstract: A lighting apparatus includes at least one light emitting device, such as one or more LEDs, detection circuitry coupled to a power input of the lighting apparatus and arranged to detect a characteristic of a modulation of the power input, supervisory circuitry, such as a processor, coupled to the detection circuitry, and a network interface, coupled to the supervisory circuitry, to communicate over a network. The supervisory circuitry is adapted to receive a message that includes brightness information over the network, receive information regarding the characteristic of the modulation of the power input from the detection circuitry, and control a brightness of the at least one light emitting device based on the brightness information and the information regarding the characteristic modulation of the power input.

Abstract: A light emitting apparatus includes a light emitting device, fixedly situated at a first position, to emit light at a wavelength, a first phosphor, fixedly situated at a second position, to radiate light with a first spectral characteristic out of the light emitting apparatus in response to irradiation by the light at the wavelength, and a second phosphor, fixedly situated at a third position, to radiate light with a second spectral characteristic out of the light emitting apparatus in response to irradiation by the light at the wavelength. An optical coupling mechanism is included to optically couple the light emitting device to the first phosphor and to optically decouple the light emitting device from the second phosphor in a first operating mode, and optically couple the light emitting device to the second phosphor in a second operating mode.

Abstract: A webcam privacy shield is magnetically attached to a bezel of an electronic display that includes a webcam. The webcam privacy shield is positioned in either a shielded position where light is blocked from entering the lens of the webcam by positioning an opaque portion of the webcam privacy shield over the lens of the webcam, or an operating position where light is allowed to enter the lens of the webcam by positioning a transparent portion of the webcam privacy shield of the lens of the webcam. Sliding the webcam privacy shield between the shielded position and the operating position allows the user to selectively maintain their privacy from the webcam, or use the webcam.

Abstract: An apparatus for generating light may be comprised of a light source with a lens interposed in a light path from the light source. The lens may be comprised of two or more sections wherein at least one section may be comprised of smart glass. Electrical circuitry may be configured to control a transparency state of the smart glass lens sections. Another embodiment may have two reflectors wherein one of the reflectors may be interposed between the light source and the other reflector and may be comprised of smart glass with a transparent state and a reflective state so that two different reflection patterns may be created. A method for illumination wherein at least one area's illumination is controlled by a section of smart glass is also disclosed.

Abstract: A light emitting apparatus includes a light emitting device, fixedly situated at a first position, to emit light at a wavelength, a first phosphor, fixedly situated at a second position, to radiate light with a first spectral characteristic out of the light emitting apparatus in response to irradiation by the light at the wavelength, and a second phosphor, fixedly situated at a third position, to radiate light with a second spectral characteristic out of the light emitting apparatus in response to irradiation by the light at the wavelength. An optical coupling mechanism is included to optically couple the light emitting device to the first phosphor and to optically decouple the light emitting device from the second phosphor in a first operating mode, and optically couple the light emitting device to the second phosphor in a second operating mode.

Abstract: A lighting apparatus includes at least one light emitting device, such as one or more LEDs, detection circuitry coupled to a power input of the lighting apparatus and arranged to detect a characteristic of a modulation of the power input, supervisory circuitry, such as a processor, coupled to the detection circuitry, and a network interface, coupled to the supervisory circuitry, to communicate over a network. The supervisory circuitry is adapted to receive a message that includes brightness information over the network, receive information regarding the characteristic of the modulation of the power input from the detection circuitry, and control a brightness of the at least one light emitting device based on the brightness information and the information regarding the characteristic modulation of the power input.

Abstract: Various gestures, or aspects of the situation, such as location, attitude and/or movement, of a handheld controller are used to control various parameters of lighting, such as brightness or color.

Abstract: In one embodiment, an apparatus includes a container containing media content such as a video file, one or more resources created from the media content such as audio and video components of the video file, and a content directory server (CDS) of an UPnP network to present the one or more resources to sink devices and to de-multiplex the audio component from the video file on demand and on the fly when the resources match a specified device description from a sink device.

Abstract: A device for automatically assessing the nature of an electrical load includes electrical transducers.