Abstract: A MAC design for Ku-band mobile wireless mesh network with multi-beam smart antennas is disclosed. This MAC includes an overlay control that separates the collision domain. It also has lower layer CSMA-like scheme. The disclosed design includes an enhanced PCF and an enhanced DCF for two purposes: (1) exploiting multi-beam concurrent communication capability (2) supporting QoS and mission-based communications. An efficient time synchronization scheme is also disclosed to ensure all beams can concurrently send data to the star node. Finally, ARMA or HMM based prediction schemes are disclosed to predict future traffic profile in each beam. This helps the star node to better prepare the queue content and schedule information.

Abstract: Systems and methods for rehabilitation of limb motion are described herein. An example system can include a thermal imaging device for imaging a subject or a plurality of sensors for sensing force or pressure exerted by a portion of the subject's body. The system can also include a processor and a memory operably coupled to the processor. The processor can be configured to receive force or pressure data measured by the sensors or image data captured by the thermal imaging device, and calculate a quantitative measure of the subject's limb motion based on the force or pressure data or the image data.

Abstract: A light source system comprises: a light-emitting device for emitting a first light and a second light in sequence; a beam splitting system with which the first light is divided into one beam in a first range of wavelength and the other beam in a second range of wavelength, respectively emitted along a first optical path and a second optical path, and also with which at least a part of the second light is emitted along the first optical path; a first spatial light modulator for modulating the beam emitted from the beam splitting system along the first optical path; a second spatial light modulator for modulating the beam emitted from the beam splitting system along the second optical path. The light source system has the advantages of high light-emitting efficiency and low cost. A projection system comprising the aforementioned light source system is also provided.

Abstract: A light source system and a projection system include a first laser array generating a red laser light; a second laser array generating a blue laser light; a beam-splitting plate located on a light path of the first and second laser arrays, for directing some of the red laser light and some of the blue laser light to a wavelength conversion device and directing some of the blue laser light to a light scattering device. The wavelength conversion device has wavelength conversion materials for receiving the blue laser light and producing a converted light, and for receiving and scattering the red laser light to form a first red light. The light scattering device has a scattering material for scattering the blue laser light to form a blue light. A light combining device forms a combined light from the converted light, the first red light and the blue light.

Abstract: Disclosed are a wavelength conversion device, a light-emitting device and a projection system, comprising a wavelength conversion layer having a first surface and a second surface opposite each other. The first surface receives an excitation light. The wavelength conversion layer absorbs the excitation to produce a converted light and emits the converted light or the mixture of the converted light and the excitation light from the first surface and the second surface. A scattering reflective substrate is stacked with the wavelength conversion layer and includes a white porous ceramic or a white scattering material for scattering the incident light. The scattering reflective substrate includes a third surface facing the second surface and scatters at least a part of the incident light on the third surface and then emits all the light from the third surface to the second surface.

Abstract: A light-emitting device and a projection system, comprising: a laser array light source which comprises a non-light-emitting region and a light-emitting region consisting of a plurality of laser elements; a reflective light-condensing system which comprises a light-condensing region and a non-light-condensing region, wherein the light-condensing region is used for focusing and reflecting emergent light of the laser array light source; and a light-collecting system used for collecting and emitting the emergent light from the reflective light-condensing system. The light-collecting system, the non-light-emitting region and the non-light-condensing region are located in the same straight line parallel to a light axis of the emergent light of the laser array light source, and the light-collecting system passes through the non-light-emitting region and/or the non-light-condensing region. The light-emitting device and the projection system have small volumes and can emit high-brightness and uniform faculae.

Abstract: A light source system comprises: a light-emitting device for emitting a first light and a second light in sequence; a beam splitting system with which the first light is divided into one beam in a first range of wavelength and the other beam in a second range of wavelength, respectively emitted along a first optical path and a second optical path, and also with which at least a part of the second light is emitted along the first optical path; a first spatial light modulator for modulating the beam emitted from the beam splitting system along the first optical path; a second spatial light modulator for modulating the beam emitted from the beam splitting system along the second optical path. The light source system has the advantages of high light-emitting efficiency and low cost. A projection system comprising the aforementioned light source system is also provided.

Abstract: Disclosed and described herein are smart, high-speed UV communication protocols, inspired by the biological principles. The disclosed and described protocols use a ‘pipe’ routing topology to deliver large amount of data among the UVs equipped with multi-beam antennas. The disclosed and described embodiments include bio-inspired pipe routing and adaptive batch coding (ABC) based congestion control. In regard to bio-inspired pipe routing, a human's brain uses highly cooperative neuro cells to memorize everything. Inspired by neuro networks, a pipe architecture with high-throughput node-to-node data delivery is disclosed and described herein. The pipe routing uses multi-beam antennas to achieve parallel data transmission. In regard to ABC based congestion control, a new network coding called ABC is disclosed, which can minimize traffic congestion occurrences in the above pipe routing. The disclosed and described transport layer protocol includes both end-to-end reliability and congestion control.

Abstract: A light-emitting device (1) and a related light source system. The light-emitting device (1) comprises a laser light source (11, 21, 31) and a light collecting system (12, 22). The laser light source (11, 21, 31) comprises a first laser array (111, 211, 311) and a second laser array (112, 212, 312) for respectively generating a first light and a second light with different wavelength ranges. The light collecting system (12, 22) is used for collecting the light emitted from the laser light source arrays. The ratio of the divergence angle of the collected second light to that of the first light is less than or equal to a predetermined value. The predetermined value is 0.7. The light-emitting device (1) is capable of generating two kinds of light beams with different etendues.

Abstract: Disclosed herein are systems and methods directed to routing in the wireless mesh network (WMN) with multi-beam directional antennas (MBDAs). The disclosed systems and methods describe Ripple-Diamond-Chain (RDC) shaped routing, systematic link quality modeling and artificial intelligence (AI) augmented path link selection. In simulations, real-time video as well as other types of traffic types are used to validate the high-throughput, quality of service (QoS)-differentiated, multi-beam routing efficiency of the disclosed systems and methods, as well as the intelligent path determination in dynamic WMN environments.

Abstract: A light source system includes an excitation light source emitting excitation light in at least first and second time intervals; a compensation light source emitting compensation light in at least third time intervals, the compensation light including laser light of at least one color; and a rotating color wheel, including at least first and second regions, the first region generating light of at least two different colors in time sequence under irradiation of the excitation light in the first and second time sequences, and the second region transmitting the compensation light in at least the third time sequence. The light of the at least two different colors includes at least one type of wide-spectrum fluorescence, and the laser compensates for the fluorescence or light split from the fluorescence. The compensation light is directly transmitted without being irradiated upon fluorescent powder, so scattering loss of the compensation light is reduced.

Abstract: Disclosed and described herein is a system and a method for thermal detection of static and moving objects.

Abstract: A light emitting device includes first, second and third LED arrays and a wavelength-based light combination device. The first LED array includes blue LEDs; the second LED array includes yellow fluorescent LEDs or green fluorescent LEDs and green LEDs; the third LED array includes red LEDs and amber LEDs. The light combination device includes first and second filters. The first filter reflects wavelengths below or equal to ?1 and transmits other wavelengths; the second filter transmits wavelengths below or equal to ?2 and reflects other wavelengths, where 470 nm??1?500 nm, 560 nm??2?590 nm. The first and second filters combine the lights from the first, second and third LED arrays into one beam. The light emitting device can emit a white light with high color rendering index. Also disclosed is a stage lighting system employing the light emitting device.

Abstract: Disclosed are a light source system and a laser light source (300). The laser light source includes two groups of laser groups (20a, 20b), wherein at least one group of laser groups includes at least two lasers (21a, 21b, 21c, 21d), and the light beams (L1) generated by the two groups of laser groups are in the same direction and parallel to each other. The first projections of the two groups of laser groups on the cross section of the light beams formed by the respective emergent light rays thereof are partially overlapped with the second projections in a first direction, which first direction is the connection direction of at least two laser centres of a group of laser groups. The laser light source has the effects of being able to effectively increase the light power density and at the same time reduce the volume of the light source.

Abstract: A light guide component and a light source device. The light guide component comprises a reflecting plate (131) having an aperture and a transflective coated plate (132). The reflecting plate (131) reflect light. The aperture allows light to pass through. The transflective coated plate (132) is connected to the reflecting plate (131) and covers the aperture, and transmits an excitation light and reflects light of a color different from that of the excitation light.

Abstract: A light source system comprises: a light-emitting device for emitting a first light and a second light in sequence; a beam splitting system with which the first light is divided into one beam in a first range of wavelength and the other beam in a second range of wavelength, respectively emitted along a first optical path and a second optical path, and also with which at least a part of the second light is emitted along the first optical path; a first spatial light modulator for modulating the beam emitted from the beam splitting system along the first optical path; a second spatial light modulator for modulating the beam emitted from the beam splitting system along the second optical path. The light source system has the advantages of high light-emitting efficiency and low cost. A projection system comprising the aforementioned light source system is also provided.

Abstract: Systems and methods for managing spectrum handoff with multimedia transmissions over cognitive radio networks are disclosed. The methods may include, for example, determining when a primary user is inactive on the one or more frequencies. The methods may also include assigning a secondary user to the one or more frequencies while the primary user is inactive and detecting return by the primary user to the one or more frequencies. The secondary user may, in one embodiment, be interrupted and one or more second frequencies that are inactive may be identified. Further, the secondary user may transition to the one or more second frequencies to resume transmission or reception.

Abstract: Provided is a projection system, a light source system, and a light source assembly. The light source system (100) comprises an excitation light source (101), a wavelength conversion device (106), a color filtering device (107), a drive device (108), and a first optical assembly. The wavelength conversion device (106) comprises at least one wavelength conversion region. The optical filtering device (107) is fixed face-to-face with the wavelength conversion device (106), and comprises at least a first optical filtering region. The drive device (108) drives the wavelength conversion device (106) and the optical filtering device (107), allowing the wavelength conversion region and the first optical filtering region to act synchronously, and the wavelength conversion region is periodically set on the propagation path of the excitation light, thereby converting the excitation light wavelength into converted light.

Abstract: A light source system and a projection system, comprising: a first laser array (10) for generating red laser; a second laser array (20) for generating blue laser; a beam-splitting diaphragm (60) located in a light path of the first laser array (10) and the second laser array (20), for directing at least a part of the red laser and at least a part of the blue laser to a wavelength conversion device (80); the beam-splitting diaphragm (60) also being used for directing at least a part of the blue laser to an astigmatism device (90); the wavelength conversion device (80) being provided with a wavelength conversion material for receiving the blue laser and producing stimulated light, and for receiving and scattering the red laser to form first red light; the astigmatism device (90) being provided with a scattering material for scattering the blue laser to form blue light; and a light synthesis device for forming synthetic light from the stimulated light, the first red light and the blue light.

Abstract: Provided is a projection system, a light source system, and a light source assembly. The light source system (100) comprises an excitation light source (101), a wavelength conversion device (106), a color filtering device (107), a drive device (108), and a first optical assembly. The wavelength conversion device (106) comprises at least one wavelength conversion region. The optical filtering device (107) is fixed face-to-face with the wavelength conversion device (106), and comprises at least a first optical filtering region. The drive device (108) drives the wavelength conversion device (106) and the optical filtering device (107), allowing the wavelength conversion region and the first optical filtering region to act synchronously, and the wavelength conversion region is periodically set on the propagation path of the excitation light, thereby converting the excitation light wavelength into converted light.