Patents Assigned to State of Israel, Ministry of Defense, Armament Development Authority
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Patent number: 6892623Abstract: A ballistic armor panel for attaching to an object, the panel comprising a carrying board made of a hard material and formed with a plurality of adjoining through-going apertures, each aperture receiving a body made of a hard material and having a longitudinal axis coaxial with an axis of the respective aperture.Type: GrantFiled: February 16, 2001Date of Patent: May 17, 2005Assignee: The State of Israel, Ministry of Defense, Armament Development AuthorityInventors: Moshe Benyami, Yehiel Reifen, Siegfried Wenkert
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Patent number: 6408765Abstract: A breaching device for controlled blasting of an object at short range includes a blasting element including an explosive charge contained within a housing, the blasting element being configured to blast the object from a preset distance. Connected to, and extending from, the housing is a stand-off rod having a length equal to the preset distance. A pyrotechnic lead pellet is associated with the blasting element and with the stand-off rod so as to detonate the explosive charge upon impact of the stand-off rod with the object. A tail is provided for stabilizing the device during its flight to the object. The tail is connected to the blasting element through a “safe and arm” device and a safety connector configured to reduce shock forces acting on the tail resulting from detonation of the explosive charge.Type: GrantFiled: March 2, 1999Date of Patent: June 25, 2002Assignee: State of Israel-Ministry of Defense Armament Development Authority-RafaelInventors: Zvi Tauber, Joseph Teper
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Publication number: 20020058450Abstract: An armor assembly for protecting a body disposed behind said armor assembly, wherein the armor assembly comprises at least one layer of material made of an essentially brittle material, said layer extending slanted relative the expected trajectory of an oncoming firearm projectile.Type: ApplicationFiled: July 16, 2001Publication date: May 16, 2002Applicant: The State Of Israel, Ministry Of Defense, Armament Development AuthorityInventors: Yehoshua Yeshurun, Yechezkel Ashuach, Zvi Rosenberg, Moshe Rozenfeld
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Patent number: 6196496Abstract: A method for assigning a target within a cluster of targets to a specific one of a plurality N of weapons launched from M airplanes is provided. The method includes providing the specific weapon with an index (m,n) based on the weapon bay n and the airplane m from which it is to be launched, receiving the central location and determining the shape of the cluster; dividing the cluster shape into N sub-clusters wherein each sub-cluster n has M sectors m, determining the center of gravity of each sector; associating the specific weapon with the sector having index (m,n); and assigning a target from among the targets in the associated sector to the specific weapon.Type: GrantFiled: June 29, 1998Date of Patent: March 6, 2001Assignee: State of Israel Ministry of Defense Armament Development Authority RaeaelInventors: Yigal Moskovitz, Izhak Saban, Rami Fabian
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Patent number: 6104345Abstract: A method is provided for the direction of arrival (DOA) tracking of at least one source, along a single azimuth axis or along both azimuth and elevation axes. The method includes the steps of selecting all the high peaks from a DOA function as potential track points, converting the potential track points into a plurality of tracks and selecting a true track from the plurality of tracks.Type: GrantFiled: April 21, 1998Date of Patent: August 15, 2000Assignee: State of Israel, Ministry of Defense Armament Development Authority-RafaelInventors: Reuven Tweg, Mati Wax
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Patent number: 6076549Abstract: Pressure control device, characterized in that it comprises, in combination with valve means having an open and a closed position and urged to said closed position by a pressure thrust, elastic means opposing the closure of said valve means by exerting thereon an elastic counterthrust opposed to said pressure thrust, said means being normally in a condition of normal strain or stress wherein it creates a first level of elastic counterthrust such as to be overcome by said pressure thrust when it exceeds a first predetermined level; and means for bringing said elastic means to at least another condition of strain or stress, wherein it creates a second level of elastic counterthrust such as to be overcome by said pressure thrust when it exceeds a second predetermined level.Type: GrantFiled: October 2, 1998Date of Patent: June 20, 2000Assignee: State of Israel Ministry of Defense Armaments Development Authority, RafaelInventors: Amit Bahat, Dan Budescu
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Patent number: 5992794Abstract: An airbag protection system for helicopters. Airbags are inflated either automatically or manually, or a combination of both, prior to the helicopter striking the ground, thus avoiding or ameliorating a crash. Proximity sensors detect a fast descent to trigger inflation of the airbags located beneath the helicopter fuselage so that they can cushion the impact with the ground. Venting of the gas from the airbags is also provided to release the gas from the airbags so as to prevent rebound of the helicopter from the ground.Type: GrantFiled: January 20, 1998Date of Patent: November 30, 1999Assignee: State of Israel-Ministry of Defense, Armament Development Authority RafaelInventors: Israel Rotman, Gideon Rosenberg
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Patent number: 5980123Abstract: A system and method for detecting an intruder into an area to be guarded is provided. The system includes a plurality of detection units, each of the plurality of detection units having at least one infrared sensor and having a first field of view external to and directed generally along the perimeter, and located within the area to be guarded. The infrared sensor may be a passive sensor. The detection units include a camera for recording intrusion within a second field of view and a controller. The controller is responsive to output of the infrared sensor, for determining when an intruder has entered the first field of view, whereupon an operator activates the camera.Type: GrantFiled: September 29, 1998Date of Patent: November 9, 1999Assignee: State of Israel/Ministry of Defense Armament Development Authority - RafaelInventor: Nahy Heifler
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Patent number: 5948045Abstract: A method for determining the initial conditions for an inertial measurement nit (IMU) of a second vehicle launched from a wing of a first vehicle is provided. The method includes the steps of defining a state vector x as including (a) the rotation .zeta. of the computed coordinate axes with respect to the real coordinate axes of the second vehicle and (b) the projection .delta..alpha. along the Z axis of the first vehicle of the rotation of the second vehicle from its nominal coordinate axes to its real coordinate axes. A measurement z is defined as the projection .delta..beta. of a rotation angle .beta., along the Z axis of the first vehicle, between the nominal coordinate axes and a current computed coordinate axes. The method also includes the steps of estimating x over time with a Kalman filter, wherein the projection .delta..beta. is the measurement vector and the state vector x changes only due to random noise and processing x to produce the attitude about the Z axis of the first vehicle.Type: GrantFiled: May 22, 1996Date of Patent: September 7, 1999Assignee: State of Israel-Ministry of Defense Armament Development Authority-RafaelInventor: Jacob Reiner
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Patent number: 5940457Abstract: A frequency-shift-keyed PLL frequency synthesizer with large frequency-muplication factor, with absolute frequency deviation independent of frequency-multiplication factor. The PLL also has fractional frequency-multiplication-factor programming capability. The PLL is inexpensive to implement, and potentially capable of fast frequency changing, due to lack of need to compensate modulator frequency deviation with possible resulting stabilization-time requirements, associated with each PLL output-frequency change. The PLL frequency synthesizer preferably employs a PLL-DRO and subharmonic mixer to achieve stable, low-noise microwave output frequencies.Type: GrantFiled: January 29, 1997Date of Patent: August 17, 1999Assignee: State of Israel-Ministry of Defense Armament Development Authority-RafaelInventors: Yona Dreifuss, Oded Maltz
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Patent number: 5875993Abstract: A control system for controlling an airborne vehicle at a time of low aerodynamic moment is provided. The control system includes combined aerodynamic and thrust vector control actuators, a quaternion generator which determines a quaternion error value defining the error between the quaternion of the vehicle and the commanded quaternion; and a controller which controls the actuators based on the quaternion error value, an aerodynamic control gain and a thrust vector control gain.Type: GrantFiled: July 10, 1997Date of Patent: March 2, 1999Assignee: State of Israel/Ministry of Defense Armament Development Authority RafaelInventors: Haim Weiss, Daniel G. Benshabat
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Patent number: 5835147Abstract: A method for transmitting a sequence of images is provided. The method indes the steps of previously defining that the sequence of images includes a plurality of frame segments and that each of the segments includes two types of images, update frames and intermediate frames, encoding and transmitting the sequence of images and decoding the transmitted sequence of images. When an update frame is present, the step of encoding and transmitting includes the step of compressing and transmitting the update frame. When an intermediate frame is present, the step of encoding and transmitting includes the step of generating and transmitting intermediate global motion parameters describing motion between the update frame and the intermediate frame. When the compressed update frame is received, decoding the transmitted sequence of images includes the step of decompressing the compressed update frame to produce a transmitted update frame.Type: GrantFiled: November 15, 1996Date of Patent: November 10, 1998Assignee: State of Israel/Ministry of Defense Armament Development Authority-RafaelInventors: Itzhak Florentin, Itzhak Messing
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Patent number: 5831936Abstract: A noise detection system is provided which includes a receiving unit, a processing unit and a user interface unit connected together. The receiving unit consists of a three-dimensional acoustical array for generally simultaneously receiving a multiplicity of sound signals from different directions. The sound signals have at least one sound source of interest. The processing unit processes the sound signals and consists of a three-dimensional spatial filter for identifying the elevation and azimuth of each of the sound signals, a sound database containing a multiplicity of soundprints of sound sources of interest, apparatus for classifying the sound signals with the soundprints, and apparatus for providing the azimuth and elevation of each of the classified sound signals. The user interface unit indicates to the user the azimuths and elevations of the classified sound signals. The processing unit further consists of filtering apparatus for filtering extraneous noise signals received by the acoustical array.Type: GrantFiled: August 18, 1997Date of Patent: November 3, 1998Assignee: State of Israel/Ministry of Defense Armament Development Authority - RafaelInventors: Gregory Zlotnick, Ehud Naheer
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Patent number: 5818384Abstract: The apparatus for and method of generating a coherent signal whose amplit, frequency and phase can be accurately controlled. A first and second signal are synthesized digitally in response to separate frequency and phase input data. The second synthesized signal is heterodyned with a coherent oscillator signal. This heterodyned signal, in turn, is heterodyned with the first synthesized signal to produce a coherent signal generator output. The amplitude of the generator output signal may be varied in accordance with attenuation input data. A phase modulator provides phase shift key modulation of the output signal in accordance with a phase control signal. In addition, a switch gates the output of the final mixer under control of a switch control circuit which determines the pulse width and timing of the signal generator output.Type: GrantFiled: January 29, 1997Date of Patent: October 6, 1998Assignee: State of Israel-Ministry of Defense Armament Development Authority-RafaelInventor: Ezra Nishri
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Patent number: 5719905Abstract: A method of processing an electronic signal so as to facilitate the reduction of spurious signals, which includes mixing the electronic signal with a first synthesized signal of varying frequency to form a combined signal, passing the combined signal through at least one electronic component to produce an exiting signal, and mixing the exiting signal with a second synthesized signal of varying frequency which is correlated to the first synthesized signal, to form an output signal having spurious signals which are spread.Type: GrantFiled: October 3, 1994Date of Patent: February 17, 1998Assignee: State of Israel-Ministry of Defense Armament Development Authority-RafaelInventors: Yakov Cohen, Ezra Nishri
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Patent number: 5691727Abstract: An adaptive polarization diversity system for radio link communication. The system includes a base station antenna for transmitting either a clockwise polarized transmission or a counterclockwise polarized transmission, the transmission including a training pilot signal. The system further includes at least one subscriber unit for receiving the transmission, the unit including a first subscriber unit antenna for receiving a clockwise polarized transmission, a second subscriber unit antenna for receiving a counter-clockwise polarized transmission, and a dual channel receiver for adaptively combining the clockwise polarized transmission with the counterclockwise polarized transmission in proportion to first and second weights, respectively, the dual channel receiver determining the first and second weights so as to substantially optimally receive the training pilot signal.Type: GrantFiled: December 22, 1995Date of Patent: November 25, 1997Assignee: State of Israel-Ministry of Defense Armament Development Authority-RafaelInventor: Baruch Cyzs
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Patent number: 5604531Abstract: An in vivo video camera system and an autonomous video endoscope are described. Each system includes a swallowable capsule, a transmitter and a reception system. The swallowable capsule includes a camera system and an optical system for imaging an area of interest onto the camera system. The transmitter transmits the video output of the camera system and the reception system receives the transmitted video output.Type: GrantFiled: January 17, 1995Date of Patent: February 18, 1997Assignee: State of Israel, Ministry of Defense, Armament Development AuthorityInventors: Gavriel J. Iddan, Doron Sturlesi
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Patent number: 5568154Abstract: A system for the instantaneous determination of the frequencies and angles of arrival of a plurality of simultaneously incoming signals. The system includes beam network matrix for receiving the simultaneously incoming signals, the matrix providing one or more superimposed output signal which includes phase information associated with the angles of arrival of the signals. The system uses a Fourier receiver which includes a sampler means for periodically producing a sample of the superimposed output signals and a frequency differentiator for differentiating the sample by frequency into a train of discrete waveforms. Each of the train of discrete waveforms is associated with one of the incoming signals and includes phase information associated with one of the incoming signals. The Fourier receiver further includes a mechanism for determining frequency which determines from one of the train of discrete waveforms the frequency of one of the incoming signals.Type: GrantFiled: May 22, 1995Date of Patent: October 22, 1996Assignee: State of Israel-Ministry of Defense Armament Development Authority-RafaelInventor: Yakov Cohen
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Patent number: 5561294Abstract: A hand-held probe system for imaging is described which includes a hand-held probe and a detector assembly connected by a fiber optic cable. The probe includes a hand-portable housing, a detector assembly within the housing and an IR sensor placed on the cold finger of the detector assembly. The probe can include an optical system at a known distance from the sensor and a spacing tube defining the distance between the body and the optical system. The spacing tube ensures that the body whose thermal image is being read is always at, or is very close to, the object plane of the probe. The spacing tube is typically formed of a material having minimal thermal deformation which can minimize stray IR radiation.Type: GrantFiled: October 27, 1994Date of Patent: October 1, 1996Assignee: State of Israel-Ministry of Defense, Armament Development Authority-RafaelInventor: Gavriel J. Iddan
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Patent number: 5552672Abstract: A magnetron includes a cathode and an anode in a vacuum chamber radially spaced from each other to define an interaction region in which a magnetic field is produced parallel to the interaction region. The anode is supplied with positive high-voltage pulses while the cathode and vacuum chamber are at a reference (ground) potential. The anode is of annular configuration located coaxially around the cathode and is formed with cavities facing the cathode, in the form of a rod, and is formed with cavities facing the cathode to define an annular interaction region between the anode and cathode.Type: GrantFiled: September 2, 1994Date of Patent: September 3, 1996Assignee: State of Israel Ministry of Defense, Armament Development Authority, RafaelInventor: Avner Rosenberg