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Patent No. 5996127

Wearable Device For Feeding and Observing Birds and Other Flying Animals

A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.

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Class 342/154 - Combined with beam steering


Subclass of Class 342 - Communications: directive radio wave systems and devices (e.g., radar, radio navigation)
Definition: Subject matter including control of which direction the
No. of patents: 64
Last issue date: 09/16/2008


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NumberTitleIssue Date
7426386Beam laydown for hopped satellite downlink with adaptable duty cycle
A power gated variable hop cycle beam laydown (700) manifests itself as first cells (C, D) supported by a first hop cycle, second cells (G, H) supported by a second hop cycle, and transition cells (E, F) supported by a transition hop cycle. The transition hop...
09/16/2008
7417584Monopulse radar estimation of target altitude at low angles of elevation
A monopulse radar operating at low angles of elevation (LOE) receives returns from a target by a direct path and by a path including a reflection from that portion of the Earth's surface lying between the radar and the target. The surface-reflected signal tends to c...
08/26/2008
7372897Portable information communication terminal, program, and recording medium
The number of times for averaging operation for averaging a correlation value of a received signal and a reference signal is properly controlled. When the correlation value is not averaged, since a lower limit value TH_A of a correlation level of a distribution of t...
05/13/2008
7352800Method of partial parallel interference cancellation
A method of Partial Parallel Interference Cancellation (PPIC) is provided for recursively eliminating the Multiple Access Interference from a received signal. Such method is to use a recursion way to eliminate all the Multiple Access Interference (MAI) one by one fr...
04/01/2008
7342535Beam-forming apparatus and method using a spatial interpolation based on regular spatial sampling
A beam-forming apparatus and method for improving system performance using a spatial interpolation and at least one Angle of Arrival (AoA) in a system based on regular spatial sampling is provided. The AoA is estimated using a carrier-to-interference ratio. Beam-for...
03/11/2008
7340277Adaptive antenna for controlling the weighting on a plurality of antenna elements
An optical subscriber system according to the present invention has an adaptive antenna having a plurality of antenna elements, for controlling the weighting on the antenna elements thereby to radiate beams that are adapted to radio wave environments, a position est...
03/04/2008
7333049Waveform ambiguity optimization for bistatic radar operation
A radar transmitter is at a first location on a moving platform and illuminates a target with a sequence of frequency modulated radar pulses. The frequency modulated pulses are linear frequency modulated, i.e. chirped. The target reflects the frequency modulated rad...
02/19/2008
7333835Method and apparatus for providing user specific downlink beamforming in a fixed beam network
The disclosed embodiments relate to a system and method for providing user specific beams in a fixed beam network. In one embodiment, there is provided a mobile transceiver comprising a first device configured to receive phase reference signal data from a base stati...
02/19/2008
7250902Method of generating accurate estimates of azimuth and elevation angles of a target for a phased—phased array rotating radar
A method and apparatus for generating accurate estimates of a radar target's azimuth and elevation angles for a phased-phased array rotating radar. Scan modulated coherently integrated (SMCI) monopulse curves are generated from a measured one-way transmit antenna pa...
07/31/2007
7248217Average EIRP control of multiple antenna transmission signals
A method of controlling multiple antenna signal transmission is disclosed. The method includes adjusting signal parameters so that transmission signals from a plurality of antennas combine to form a directional beam. A time duration in which the transmission signals...
07/24/2007
7248215Beam architecture for improving angular resolution
An automotive radar system includes a beamformer circuit and a beamcombiner circuit. The beamformer circuit forms a plurality of antenna beams at a plurality of beam ports. The beam combiner circuit receives the beams provided thereto from the beamformer circuit and...
07/24/2007
7236759Method for steering smart antenna beams for a WLAN using signal and link quality metrics
An antenna steering algorithm for a smart antenna uses signal quality metrics and link quality metrics for selecting a preferred antenna beam. The link quality metrics supplement the signal quality metrics for improving the antenna steering decision. The link qualit...
06/26/2007
7081847Radar system with switchable angular resolution
A radar system with a radar sensor (10) which comprises a transmitting module (20), a receiving module (22) and a supply network (64), wherein the transmitting module (20) comprises a first plurality of partial antennas (26, 28,...
07/25/2006
7075482Direction finding method and system using transmission signature differentiation
A Direction Finding DF Method and System Using Transmission Signature Differentiation is disclosed. Also disclosed is system that is able identify which signal is coming from which transmiitter. Futhermore, the syatem can take each respective transmitter's Line-of-B...
07/11/2006
7054664Method and apparatus for providing user specific downlink beamforming in a fixed beam network
The disclosed embodiments relate to a system and method for providing user specific beams in a fixed beam network, the fixed beam network comprising a plurality of fixed beams, each of the plurality of fixed beams being defined by a plurality of fixed beam correlati...
05/30/2006
7038615Efficient technique for estimating elevation angle when using a broad beam for search in a radar
A method and apparatus for estimating elevation angle when using a broad search beam such as a cosecant-squared beam is provided. The range of a target detected during a search with a broad beam covering a broad angular search area is determined. Based on the determ...
05/02/2006
6937746System and method for automatic recognition of formations in moving target indication data
A system and method for determining a threat level associated with a collection of detected objects within a geographical area of interest are disclosed. A set of formation templates representative of organizational patterns are defined. Configurations for the templ...
08/30/2005
6911948Antenna steering scheduler for mobile station in wireless local area network
Methods of scheduling optimization of communications used with Wireless Local Area Network (WLAN) equipment that employs steerable directional antennas. The methods may use and are compatible with Media Access Control (MAC) layers of IEEE 802.11 group of standards. ...
06/28/2005
6900764Steerable-beam multiple-feed dielectric resonator antenna
A radiating antenna capable of generating or receiving radiation using a plurality of feeds and a dielectric resonator is disclosed. The purpose of using multiple feeds with a single dielectric resonator antenna is to produce several beams each having a ‘boresight...
05/31/2005
6894657Bi-directional vector modulator
The present invention provides a system for providing a bi-directional vector modulator in which the signal can travel in either direction while the phase shift remains constant. In addition to the functionality of being a phase shifter, the disclosed invention acts...
05/17/2005
6856284Methods and apparatus for multi-beam, multi-signal transmission for active phased array antenna
A method and apparatus for simultaneously transmitting, at a common frequency, a plurality of signals on a plurality of beams from a phased array antenna involves forming composite signals that contain the plurality of signals. The composite signals correspond to re...
02/15/2005
6853329Monopulse radar system
A monopulse radar system for detecting an azimuth depending upon amplitude difference or phase difference between signals respectively received by plural receiving antennas, includes: a transmitting array antenna and a receiving array antenna each including antenna ...
02/08/2005
6850737Antenna direction finding in mobile phones
The present invention describes a communication system comprising a primary radio station (PS) and at least one secondary radio station (SS), intended to be in motion (MOT). The secondary radio station has at least one controllable structure (CS) for communicating w...
02/01/2005
6836674Method of controlling directional antenna and apparatus of the same
Disclosed is a control apparatus capable of more effectively utilizing radio resources. Mobile stations positioned close to each other are treated as one group, and a direction and width (radiation angle) of a beam radiated from an adaptive array antenna 11 i...
12/28/2004
6750810Monopulse radar system
To realize a monopulse radar system wherein the velocity of a mobile body, distance between an obstacle and the mobile body and relative velocity can be detected and simultaneously, the direction of the obstacle can be detected, in a monopulse radar system wherein a...
06/15/2004
6667712Downlink load sharing by nulling, beam steering and beam selection
The beam pattern associated with a multi-beam antenna array is adjusted if a first beam of the beam pattern is overloaded. A lobe of a second beam of the beam pattern can be steered away from a main lobe of the first beam. Also, if a user is located in an...
12/23/2003
6653973Adaptive digital beamforming radar method and system for maintaining multiple source angle super-resolution capability in jamming
A method and system for are provided for detecting one or more radar targets of interest in the presence of jamming signals. A plurality of sub-arrays are formed from an antenna array. Sub-array beams are adaptively formed so as to point one or more nulls...
11/25/2003
6456238Dynamic signal routing in electronically scanned antenna systems
An antenna array system with dynamic signal routing to a set of receivers. A monopulse electronically scanned antenna (ESA) has a plurality of antenna elements divided into subarrays. ESA beam steering phase shifters are associated with the respective sub...
09/24/2002
6433738Transmission antenna directivity control apparatus and method
In a transmission antenna directivity control apparatus, a reception multi-beam generation section executes weights and combines reception signals from reception array antenna elements using a preset weight coefficient to generate reception multi-beams. A...
08/13/2002
6417804Control device for the formation of several simultaneous radar reception beams for an electronic scanning antenna
A control device for the formation of plural simultaneous radar reception beams in an electronic scanning antenna. The electronic scanning antenna includes an array of detectors of a reception microwave signal arranged in n columns and m rows. The control...
07/09/2002
6163296Calibration and integrated beam control/conditioning system for phased-array antennas
A near-field calibration arrangement for an antenna array determines the phase shifts or attenuation of the elemental control elements of the array. The calibration system includes a probe located in the near field, and a calibration tone generator. The t...
12/19/2000
6133866Method of operating monopulse radar
A method of operating a radar to track echo signals from a target in the presence of a barrage jammer is shown to comprise the steps of actively determining the apparent direction of the combination of echo signals from a target and jamming signals, passi...
10/17/2000
5959578Antenna architecture for dynamic beam-forming and beam reconfigurability with space feed
A switch (10) having a beam-forming network (12) generates independently steerable beams (26). One or more of the independently steerable beams couple in radiating communication with selected ones of M beam ports (18). A feeder array (11) or second beam-f...
09/28/1999
5943010Direct digital synthesizer driven phased array antenna
A digitally beam formed phased array antenna capable of both transmitting and receiving signals is constructed from a series of digitally controlled antenna elements. To transmit signals, a series of direct digital synthesizers is used to drive the antenn...
08/24/1999
5940029Radar apparatus
An array antenna radar apparatus has a single front end shared by a plurality of antennas, a first switch for cyclically connecting the antennas to the front end at a prescribed switching frequency, and a second switch for cyclically connecting the output...
08/17/1999
5847675Radar with a wide instantaneous angular field and a high instantaneous angular resolution in particular for a missile homing head
This radar with a wide instantaneous angular field and a high instantaneous angular resolution, in particular for a missile homing head, includes essentially: a transmitting antenna with a relatively wide radiation pattern, transmitting a quasi-continuous...
12/08/1998
5784022Process and amplitude or phase monopulse radar device for locating flying objects
The process and the corresponding phase or amplitude-single pulse radar device are used to locate a first and possibly a second target (TT1, TT2) detected by the radar beam from the direction x1, y1; x2, y2. The extended single-pulse aerial of the radar d...
07/21/1998
5771016Phased array radar with simultaneous beam-steering and single-sideband modulation
In a phased array radar, simultaneous beam steering and single-sideband mlation is accomplished in the phase shifters in response to phase control signals produced by the beam steering controller and input to the phase shifters. The beam steering control...
06/23/1998
5767805Method for the broadening of a volume antenna beam
The disclosure relates to electronic scanning array antennas whose radiating elements are distributed within a volume instead of being distributed on a reflective surface that is plane or generated by revolution. It pertains to a method for broadening the...
06/16/1998
5764187Direct digital synthesizer driven phased array antenna
A digitally beam formed phased array antenna capable of both transmitting and receiving signals is constructed from a series of digitally controlled antenna elements. To transmit signals, a series of direct digital synthesizers is used to drive the antenn...
06/09/1998
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