Patent application number | Description | Published |
20090002220 | Millimeter wave imager with visible or infrared overlay for brownout assist - An imaging system for a rotary aircraft having a millimeter wave imager with visible or infrared overlay. The system includes an active millimeter wave imaging system comprising a millimeter wave transmitter and a millimeter wave phased array receiver for producing millimeter wave images of a landing region, a second imaging system operating at visible or infrared wavelengths to produce visible or infrared images of the landing region, and a processor programmed with a see and remember algorithm for overlaying the visible or infrared images and the millimeter wave images and to save at least one good high-resolution visible or infrared image in case of a brownout event begins to obscuring the visible or infrared images wherein in case of the brownout event the millimeter wave images are overlaid on the at least one good visible or infrared image and not obscured visible or infrared images. | 01-01-2009 |
20090135051 | Mobile millimeter wave imaging radar system - A short range millimeter wave imaging radar system. The system includes electronics adapted to produce millimeter wave radiation scanned over a frequency range of a few gigahertz. The scanned millimeter wave radiation is broadcast through a frequency scanned transmit antenna to produce a narrow transmit beam in a first scanned direction (such as the vertical direction) corresponding to the scanned millimeter wave frequencies. The transmit antenna is scanned to transmit beam in a second direction perpendicular to the first scanned direction (such as the horizontal or the azimuthal direction) so as to define a two-dimensional field of view. Reflected millimeter wave radiation is collected in a receive frequency scanned antenna co-located (or approximately co-located) with the transmit antenna and adapted to produce a narrow receive beam approximately co-directed in the same directions as the transmitted beam in approximately the same field of view. Computer processor equipment compares the intensity of the receive millimeter radar signals for a pre-determined set of ranges and known directions of the transmit and receive beams as a function of time to produce a radar image of at least a desired portion of the field of view. In preferred embodiment the invention is mounted on a truck and adapted as a FOD finder system to detect and locate FOD on airport surfaces. | 05-28-2009 |
20100214150 | MILLIMETER WAVE IMAGING SYSTEM WITH FREQUENCY SCANNING ANTENNA - A millimeter wave imaging system. The system includes one or more millimeter wave frequency scanning antenna for collecting frequency dependent beams of millimeter wave radiation from a narrow one-dimensional field of view and millimeter wave amplifier components for amplifying the millimeter wave radiation collected by each antenna. The system includes a beam-former that separates the amplified radiation to produce frequency dependent signals corresponding to the frequency dependent beams. The beam-former includes delay lines, a millimeter wave lens, and an array of millimeter wave power detectors for detecting the power in each frequency dependent beam. A sampling circuit reads out the frequency dependent signals to produce a one-dimensional image of the antenna field of view. A two dimensional image of a target may be obtained by moving the target (or having the target move) across the field of view of the scanning antenna or by moving the antenna in order to scan its line of focus over the target. In preferred embodiments a 2×2 Dicke switch is provided to permit sampling a reference thermal source for gain control while continuing to collect image information. This 2×2 Dicke switch provides a square root of 2 improvement in temperature sensitivity over a single receiver version. Preferred embodiments also include features for focusing the antenna within a range of about 5 feet to infinity. | 08-26-2010 |
20110075713 | High data rate milllimeter wave radio - A high data rate millimeter wave radio adapted to receive an binary input data at an input data rate in excess of 3.5 Gbps and to transmit at a transmit data rate in excess of 3.5 Gbps utilizing encoded three-bit data symbols on a millimeter carrier wave at a millimeter wave nominal carrier frequency, defining a carrier wavelength and period, in excess of 70 GHz with differential phase-shift keying utilizing eight separate phase shifts. Preferred embodiments of the invention can support many of the high data rate standards including the following group of protocols or standards: SONET OC-96 (4.976 Gbps); 4xGig-E (5.00 Gbps); 5xGig-E (6.25 Gbps); OBSAI RP3-01 (6.144 Gbps); 6xGig-E (7.50 Gbps); Fibre Channel 8GFC (8.5 Gbps); SONET OC-192 (9.952 Gbps); Fibre Channel 10GFC Serial (10.52 Gbps) and 10 GigaBit Ethernet. | 03-31-2011 |
20110089696 | Power generating buoy - An electric power generating buoy capable of generating power by scavenging energy from ocean wave motion. The power generating buoy includes float element adapted to float up and down following wave motion and an electric generator system with a spring loaded spool mechanism adapted to drive the rotor of the electric generator. It also includes an anchor element and a tension element attached to an anchor and the spring loaded spool mechanism and adapted to spin the spring loaded spool mechanism to generate electric current when wave action causes the float element to rise relative to the anchor element. Preferred embodiments of the buoy will deliver a minimum of 100 Watts of average power from the wave motion characteristic of moderate sea state (sea state 3), with less power from slight sea state (sea state 2) and more power from higher sea states. The basic power generation scheme will rely on harnessing the mechanical energy of the wave as it repeatedly pushes the buoyant surface float against a ballast force through the distance corresponding to the wave height. | 04-21-2011 |
20110170526 | Base stations backhaul network with redundant paths - A high bandwidth, low latency middle-mile, last mile core communications network providing low-cost and high-speed communications among the users of the network. Embodiments of the invention include a number of network access points located at a number of spaced apart sites. At least some of these network access points in the network are in communication with each other via wireless radio links. The network provides backhaul communication between at least one communication switching center and a number of base stations. | 07-14-2011 |
20120135724 | Circuit switched millimeter wave communication network - A high bandwidth, low latency middle-mile core communications network providing low-cost and high-speed communications among the users of the network. Embodiments of the invention include a number of network access points located at a number of spaced apart sites. At least some of these network access points in the network are in communication with each other via millimeter radio links with microwave backup links. In preferred embodiments the millimeter radio links include two millimeter radios, one transmitting in the frequency range of 71-76 GHz and receiving in the frequency range if 81 to 86 GHz and the other radio transmitting in the frequency range of 81-86 GHz and receiving in the frequency range if 71 to 76 GHz. In these preferred embodiments each millimeter wave radio is equipped with an antenna designed to produce a millimeter wave beam with an angular spread of less than two degrees. A high-speed switch is located at each network access point. The switches include a plurality of ports through which a plurality of network users transmits information through the network. Preferred embodiments utilize Ethernet switches programmed to encapsulate and tag incoming packets with a special set of tags which allow the tagging switch and other Ethernet switches in the network to direct the packets to one or more output ports of itself and/or one or more of the output ports of other Ethernet switches at one or more distant network access points, without a need for any of the network equipment to read any MAC or IP address information contained in the packets. | 05-31-2012 |
20120249363 | Long range millimeter wave surface imaging radar system - A long range millimeter wave imaging radar system. Preferred embodiments are positioned to detect foreign object debris objects on surface of the runway, taxiways and other areas of interest. The system includes electronics adapted to produce millimeter wave radiation scanned over a frequency range of a few gigahertz. The scanned millimeter wave radiation is broadcast through a frequency scanned antenna to produce a narrow scanned transmit beam in a first scanned direction (such as the vertical direction) defining a narrow, approximately one dimensional, electronically scanned field of view corresponding to the scanned millimeter wave frequencies. The antenna is mechanically pivoted or scanned in a second scanned direction perpendicular to the first scanned direction so as to define a two-dimensional field of view. | 10-04-2012 |