Abstract: A power transmitter (22) for a wireless power transfer system comprises an output circuit comprising a transmit power inductor (25) generating a wireless power transfer signal. An object detector (43) for detection of an object extracting power from the power transfer signal includes a signal generator (501) generating first and second carrier signals. A first signal path (503) receives the first carrier signal and comprises a circulator (513) having a port coupled to the output circuit and a port providing a reflected signal from the output circuit. A second signal path (505) receives the second carrier signal and has a signal path equalizer (515) with a transfer function corresponding to a transfer function of the circulator (513). A mixer (507) mixes signals from the two signal paths (503) and a first detector (509) determines a reflection parameter for the output circuit in response to the mixed signal. A second detector (511) detects a presence of the object in response to the reflection parameter.

Abstract: The invention provides an occupancy sensor, for use in a lighting system, including a transceiver, wherein the transceiver is adapted to transmit and receive signals. The occupancy sensor further includes a controller, which is adapted to process signals received by the transceiver. Based on the signals received at the transceiver, the controller is adapted to detect a presence in the area of interest. The controller is further adapted to detect a predetermined pattern within the signals received at the transceiver and interpret a system message based on said pattern.

Abstract: An elongate device, such as a catheter, for interventional MRI has one or more passive LC-circuits attached to its distal tip portion for position tracking. The LC-circuits includes an inductor winding and a three-dimensional “trench” capacitor. The LC-circuits are integrated in a piece of silicon. Optical fibers may be included in the device for optical probing of tissue surrounding the distal tip portion.

Abstract: The invention provides a light management information system for an outdoor lighting network system, having a plurality of outdoor light units each including at least one sensor type, where each of the light units communicates with at least one other light unit, at least one user input/output device in communication with at one or more of said outdoor light units, a central management system in communication with light units, said central management system sends control commands and/or information to one or more of said outdoor light units, in response to received outdoor light unit status/sensor information from one or more of said outdoor light units or received user information requests from said user input/output device, a resource server in communication with said central management system, wherein the central management system uses the light unit status/sensor information and resources from the resource server to provide information to the user input/output device and/or reconfigure one or more of the l

Abstract: The present invention relates to a method of manufacturing a ferrite rod. The method comprises etching cavities into two semiconductor substrates and depositing ferrite layers into the cavities. The semiconductor substrates are attached to each other such that the ferriote layers form a ferrite rod. The present invention employs conventional photolithography and bulk isotropic micromachining of semiconductor wafers to precisely and repeatably form a template or mold, into which magnetic material can be deposited to form a Faraday rotation or phase-shifting element.

Abstract: The invention provides a light management information system for an outdoor lighting network system, having a plurality of outdoor light units each including at least one sensor type, where each of the light units communicates with at least one other light unit, at least one user input/output device in communication with at one or more of said outdoor light units, a central management system in communication with light units, said central management system sends control commands and/or information to one or more of said outdoor light units, in response to received outdoor light unit status/sensor information from one or more of said outdoor light units or received user information requests from said user input/output device, a resource server in communication with said central management system, wherein the central management system uses the light unit status/sensor information and resources from the resource server to provide information to the user input/output device and/or reconfigure one or more of the l

Abstract: The present invention relates to a method of manufacturing a ferrite rod. The method comprises etching cavities into two semiconductor substrates and depositing ferrite layers into the cavities. The semiconductor substrates are attached to each other such that the ferriote layers form a ferrite rod. The present invention employs conventional photolithography and bulk isotropic micromachining of semiconductor wafers to precisely and repeatably form a template or mould, into which magnetic material can be deposited to form a Faraday rotation or phase-shifting element.

Abstract: Disclosed are methods and apparatus for improved DMX communications. In some embodiments, methods and apparatus related to extensions of the DMX protocol enable error detection and correction by enhanced DMX slave devices. The methods and apparatus may utilize at least one forward error correction byte that is incorporated within a DMX packet and that may be utilized to correct instruction bytes in the DMX packet. A plurality of bytes within the DMX packet may optionally be interleaved according to an interleaving scheme in some variations.

Abstract: Disclosed are methods and apparatus for improved backwards compatible DMX communications. In some embodiments, methods and apparatus related to extensions of the DMX protocol enable error detection by enhanced DMX slave devices while maintaining full compatibility with non-enhanced DMX slave devices. The methods and apparatus may utilize a packet checksum byte that is incorporated within a start code packet and that is a checksum of a plurality of bytes in the start code packet. A plurality of bytes within the start code packet may optionally be interleaved according to an interleaving scheme in some variations.

Abstract: A presence detection system (1) for detecting a presence of an object (3), particularly a person or an animal or vehicle, within an area (5) divided in detection zones (9A;9B;9C;9D) covering the area. The system comprises a movement detection device (11A;11B;11C;11D) for detecting a movement of the object. The system further comprises an electronic processing device (13) for storing information relating to a position of the object in a zone-wise way, based on a detected movement of the object. The electronic processing device is configured for determining the presence of the object within the area based on a detected movement of the object and stored information relating to the position of the object. The system is highly sensitive and highly prevents false presence detections. The invention also relates to a method for presence detection, and a lighting system comprising the presence detection system.

Abstract: Disclosed are methods and apparatus for improved DMX communications. In some embodiments, methods and apparatus related to extensions of the DMX protocol enable error detection and correction by enhanced DMX slave devices. The methods and apparatus may utilize at least one forward error correction byte that is incorporated within a DMX packet and that may be utilized to correct instruction bytes in the DMX packet. A plurality of bytes within the DMX packet may optionally be interleaved according to an interleaving scheme in some variations.

Abstract: Disclosed are methods and apparatus for improved backwards compatible DMX communications. In some embodiments,methods and apparatus related to extensions of the DMX protocol enable error detection by enhanced DMX slave devices while maintaining full compatibility with non-enhanced DMX slave devices. The methods and apparatus may utilize a packet checksum byte that is incorporated within a start code packet and that is a checksum of a plurality of bytes in the start code packet. A plurality of bytes within the start code packet may optionally be interleaved according to an interleaving scheme in some variations.

Abstract: A presence detection system (1) for detecting a presence of an object (3), particularly a person or an animal or vehicle, within an area (5) divided in detection zones (9A;9B;9C;9D) covering the area. The system comprises a movement detection device (11A;11B;11C;11D) for detecting a movement of the object. The system further comprises an electronic processing device (13) for storing information relating to a position of the object in a zone-wise way, based on a detected movement of the object. The electronic processing device is configured for determining the presence of the object within the area based on a detected movement of the object and stored information relating to the position of the object. The system is highly sensitive and highly prevents false presence detections. The invention also relates to a method for presence detection, and a lighting system comprising the presence detection system.

Abstract: An elongate device (e.g. a catheter) for interventional MRI has one or more passive LC-circuits (wireless markers) attached to its distal tip portion for position tracking. The LC-circuits comprise an inductor winding (480) and a three-dimensional “trench” capacitor (420-440) and are integrated in a piece of silicon (410). Optical fibres may be included in the device for optical probing of tissue surrounding the distal tip portion.