Abstract: A method of performing a multiplication operation in the optical domain using a device (100) comprising: an optical waveguide (101), and a modulating element (102) that is optically coupled to the optical waveguide (101), the modulating element (102) modifying a transmission, reflection or absorption characteristic of the waveguide (101) dependant on its state, wherein the state of the modulating element (102) is adjustable by a write signal (103). The method comprises: encoding a first value to the write signal (103), using the write signal (103) to map the first value to a state of the modulating element (102); encoding a second value to a read signal (104); producing an output signal intensity as the transmitted or reflected read signal, wherein the product of the first value and the second value is encoded in the output signal intensity.

Abstract: The present invention provides a modular security partition for a public safety vehicle comprising: a driver assembly, a passenger assembly, and a frame connect assembly, wherein the driver assembly having at least one driver panel, and a driver frame member having a non-feature portion, and a driver connect feature that is a part of the frame connect assembly; the passenger assembly having at least one passenger panel, and a passenger frame member having a non-feature portion, and a passenger connect feature that is a part of the frame connect assembly; the driver assembly and the passenger assembly are separate pieces designed for easy shipping; and the driver assembly and the passenger assembly are then assembled together into the security partition as a single piece by using the frame connect assembly, fasteners, and the assembly attachment features of the at least one driver panel and the at least one passenger panel.

Abstract: Various examples of a system and method for a storm shutter system is described. In one example, the system includes at least one rail configured to be secured to a building structure and a plurality of panels. Each panel includes a first surface configured to face an exterior environment of a building and a second surface configured to face an interior of the building; at least one perforation extending between the first and second surface; rail connection elements configured to attach the panel to a rail; and interlocking elements configured for panel-to-panel assembly. The panels are configured to be assembled by a single person. The interlocking elements are configured to connect one panel of the plurality of panels to another panel forming a unit of connected panels without using additional hardware.

Abstract: Methods and apparatus for orthogonal stream spatial multiplexing. In one embodiment, a method includes splitting and modulating a data stream into n MIMO RF spatial streams and coupling them to corresponding switchable polarization antenna elements controlled via orthogonal binary codes for transmission. Each transmitted stream manifests as time-varying-polarization-orthogonal to the other n?1 spatial streams. The method includes reception of the streams at their destination using corresponding antenna elements controlled by the same set of orthogonal codes. Thus, each of the n transmitted spatial streams is polarization-match-filtered, unambiguously separated and individually recovered from all the others upon reception for subsequent demodulation and MIMO spatial recombination into the original data stream.

Abstract: Methods and apparatus for orthogonal stream spatial multiplexing. In one embodiment, a method includes splitting and modulating a data stream into n MIMO RF spatial streams and coupling them to corresponding switchable polarization antenna elements controlled via orthogonal binary codes for transmission. Each transmitted stream manifests as time-varying-polarization-orthogonal to the other n?1 spatial streams. The method includes reception of the streams at their destination using corresponding antenna elements controlled by the same set of orthogonal codes. Thus, each of the n transmitted spatial streams is polarization-match-filtered, unambiguously separated and individually recovered from all the others upon reception for subsequent demodulation and MIMO spatial recombination into the original data stream.

Abstract: A photonic device (100) comprising: an optical waveguide (101), and a modulating element (102) that is evanescently coupled to the waveguide (101); wherein the modulating element (102) modifies a transmission, reflection or absorption characteristic of the waveguide (101) dependant on its state, and the state of the modulating element (102) is switchable by an optical switching signal (125) carried by the waveguide (101), or by an electrical signal that heats the modulating element (102).

Abstract: Methods and apparatus for orthogonal stream spatial multiplexing and beamforming. In one embodiment, a method includes injecting a Data Stream into a transmitter apparatus that splits, modulates, spatially multiplexes and transmit beamforms it into n spatial streams input to corresponding code-controlled selectable polarization antennas that each radiates a stream that is polarization orthogonal to or uncorrelated with the other n?1 radiated streams. The method includes detecting the radiated streams at a receiver apparatus comprising n selectable polarization antennas correspondingly controlled by the same codes. Each receive antenna match-polarization filters the incident radiated stream aggregate to recover one corresponding spatial stream. The n recovered spatial streams are then receive beamformed, spatially demultiplexed, demodulated and recombined into the original Data Stream.

Abstract: Methods and apparatus for orthogonal stream spatial multiplexing. In one embodiment, a method includes splitting and modulating a data stream into n MIMO RF spatial streams and coupling them to corresponding switchable polarization antenna elements controlled via orthogonal binary codes for transmission. Each transmitted stream manifests as time-varying-polarization-orthogonal to the other n?1 spatial streams. The method includes reception of the streams at their destination using corresponding antenna elements controlled by the same set of orthogonal codes. Thus, each of the n transmitted spatial streams is polarization-match-filtered, unambiguously separated and individually recovered from all the others upon reception for subsequent demodulation and MIMO spatial recombination into the original data stream.

Abstract: Methods and apparatus for orthogonal stream spatial multiplexing. In one embodiment, a method includes splitting and modulating a data stream into n MIMO RF spatial streams and coupling them to corresponding switchable polarization antenna elements controlled via orthogonal binary codes for transmission. Each transmitted stream manifests as time-varying-polarization-orthogonal to the other n?1 spatial streams. The method includes reception of the streams at their destination using corresponding antenna elements controlled by the same set of orthogonal codes. Thus, each of the n transmitted spatial streams is polarization-match-filtered, unambiguously separated and individually recovered from all the others upon reception for subsequent demodulation and MIMO spatial recombination into the original data stream.

Abstract: A method of performing a multiplication operation in the optical domain using a device (100) comprising: an optical waveguide (101), and a modulating element (102) that is optically coupled to the optical waveguide (101), the modulating element (102) modifying a transmission, reflection or absorption characteristic of the waveguide (101) dependant on its state, wherein the state of the modulating element (102) is adjustable by a write signal (103). The method comprises: encoding a first value to the write signal (103), using the write signal (103) to map the first value to a state of the modulating element (102); encoding a second value to a read signal (104); producing an output signal intensity as the transmitted or reflected read signal, wherein the product of the first value and the second value is encoded in the output signal intensity.

Abstract: Methods and apparatus for orthogonal stream spatial multiplexing. In one embodiment, a method includes splitting and modulating a data stream into n MIMO RF spatial streams and coupling them to corresponding switchable polarization antenna elements controlled via orthogonal binary codes for transmission. Each transmitted stream manifests as time-varying-polarization-orthogonal to the other n-1 spatial streams. The method includes reception of the streams at their destination using corresponding antenna elements controlled by the same set of orthogonal codes. Thus, each of the n transmitted spatial streams is polarization-match-filtered, unambiguously separated and individually recovered from all the others upon reception for subsequent demodulation and MIMO spatial recombination into the original data stream.

Abstract: A photonic device (100) comprising: an optical waveguide (101), and a modulating element (102) that is evanescently coupled to the waveguide (101); wherein the modulating element (102) modifies a transmission, reflection or absorption characteristic of the waveguide (101) dependant on its state, and the state of the modulating element (102) is switchable by an optical switching signal (125) carried by the waveguide (101), or by an electrical signal that heats the modulating element (102).

Abstract: The present invention provides an electronic box for a vehicle comprising: a storage housing having at least two tray brackets and a front aperture; a removable tray having (a) a channel having channel slots; (b) at least one engagement member that fits into the channel and (c) at least one latch mechanism; wherein (i) a tray slot is included in each of the at least two tray brackets; (ii) the at least one engagement member engages with the tray slots via the channel slots thereby forming a hinged mechanism when the electronic box in a closed configuration; and (iii) the at least one engagement member disengages with the tray slots when the electronic box is an opened configuration and allows the removable tray to open via the front aperture. The present invention also provides a method for attaching the above-described electronic box to a vehicle.

Abstract: The present invention provides a method of installing a security partition into a vehicle comprising: installing the lower mounting assemblies of the partition to the vehicle, attaching the partition body assembly of the partition to the lower mounting assemblies forming pivotable connections in a unlocked position; pivoting the partition into direction of a desired location of the vehicle; attaching the partition to the sides of the vehicle via side mounting brackets; and securing both the pivotable connections into a locked position. The present invention also provides the security partition described herein.

Abstract: A photonic device (100) comprising: an optical waveguide (101), and a modulating element (102) that is evanescently coupled to the waveguide (101); wherein the modulating element (102) modifies a transmission, reflection or absorption characteristic of the waveguide (101) dependant on its state, and the state of the modulating element (102) is switchable by an optical switching signal (125) carried by the waveguide (101), or by an electrical signal that heats the modulating element (102).

Abstract: In one arrangement, a method for estimating sales of a particular type of item by a first entity through a first channel versus sales of the particular type of item by the first entity through a second channel.

Abstract: Technologies are described herein for aggregating location information with presence information for a user and making the combined information available to other users. Location and presence information is received from various endpoints and communication services utilized by a particular user. The location and presence information is aggregated and a current location and presence for the user is determined The current location and presence may be stored in a presence document corresponding to the user. The presence document is made available to client applications executing on the endpoints of other users, so that the client applications may display the presence information combined with the current location of the user to the other users.