| Patent Number |
Title Of Patent |
Date Issued |
| 4384351 |
Flextensional transducer |
May 17, 1983 |
| A magnetic drive is provided for a flextensional transducer in order to adapt the flextensional transducer for operation at increased ocean depths without the necessity of liquid filling and complex decoupling devices. In one embodiment an electro-magnetic actuator is positioned between |
| 4376390 |
Fiber optic angular accelerometer |
March 15, 1983 |
| A fiber optic angular accelerometer is provided by employing a flexible membrane having an optical fiber attached thereto, an input optical fiber for coupling light to the fiber attached to the flexible membrane and an output optical fiber for receiving light from the optical fiber attac |
| 4371969 |
Low cost laser |
February 1, 1983 |
| A compact low-cost laser is provided by employing a solid state laser rod which is pumped by the optical radiation from the direct combustion of a metal in a flowing oxygen atmosphere. |
| 4368430 |
Fiber optic magnetic sensors |
January 11, 1983 |
| A magnetometer which includes a pair of spaced apart optical fibers at least one of which comprises a cantilevered beam having a dipolar magnet thereon such that fluctuations of the magnetic H field will cause fluctuating mechanical torque on the magnet which will be applied to the c |
| 4359223 |
Interactive video playback system |
November 16, 1982 |
| Video images derived from a video recording medium (such as a video disc or tape) using a video playback unit are displayed on the screen of a cathode ray tube display simultaneously with video images generated from a microprocessor-controlled video game. The video game permits a user to |
| 4358766 |
Jamming signal reduction system |
November 9, 1982 |
| Improved radar system performance in a jamming environment is achieved by making a complete frequency analysis of the jamming power entering the radar receiver during each range sweep (once per transmitted pulse) and then setting the frequency of the next transmitted pulse to the value |
| 4357014 |
Interactive game and control therefor |
November 2, 1982 |
| An interactive game of a strategy nature employing a digital processor includes a keyboard to preselect the successive directional movements of one or more of the simulated player symbols prior to the start of the game and/or supplement this preprogrammed game action with real-time contr |
| 4355893 |
Eye-safe laser cloud height rangefinder |
October 26, 1982 |
| An eye-safe laser cloud height rangefinder comprising an Er:LiYF.sub.4 laser operating at 1.73 .mu.m and a germanium detector. |
| 4355814 |
Video game symbol generation and control apparatus |
October 26, 1982 |
| Apparatus for generating and controlling the position of a displayed symbol for a video game comprises a plurality of voltage comparators responsive to inputs thereto from multiple control voltage sources including a microprocessor and a participant control such that the microprocessor a |
| 4355805 |
Manually programmable video gaming system |
October 26, 1982 |
| Apparatus and methods are disclosed herein for use in conjunction with raster scan video displays, including standard monochrome and color television receivers, for the generation, display and manipulation of images upon the screen of a display for the purpose of playing games or for |
| 4354662 |
Force motor |
October 19, 1982 |
| This invention relates to force motors that are used in single stage hydraulic valves that are responsive to electrical input signals. The inertia of the force motor is reduced by having only a small portion of the force motor move. By reducing the mass of the moving parts of the for |
| 4352186 |
Laser crystal |
September 28, 1982 |
| Improved laser system gain is achieved by using Gadolinium to totally replace the Yttrium in a Lithium Yttrium Fluoride (YLF) host crystal so as to increase the amount of Neodymium which can be doped into the host crystal. |
| 4350999 |
Video formatted digital data transmission method and apparatus |
September 21, 1982 |
| Transmission of digital information during the course of a television signal transmission is provided by transmitting a predetermined number of color burst cycles during the horizontal blanking interval such that logical bits are represented by different, predetermined cycles of color |
| 4346992 |
Laser detector and spectral analyzer |
August 31, 1982 |
| There is herein disclosed a laser detector and spectral analyzer comprising a plurality of photoelectric detector elements, at least, two of which are suitably masked and disposed behind a wedge type interference filter. An additional detector element is operated without any mask or filt |
| 4346407 |
Apparatus for synchronization of a source of computer controlled video to another video source |
August 24, 1982 |
| Synchronization of a source of computer controlled video to another video source is achieved by providing clock pulses for the source of computer controlled video at some multiple of the horizontal synchronization frequency of the other video source to obtain frequency coherence and by |
| 4342454 |
Method and apparatus for instant replay and other capabilities for microprocessor-controlled vid |
August 3, 1982 |
| Instant replay for microprocessor-controlled video games is provided by storing and retaining for a period of time in a random access memory the results of microprocessor polling of each of the player command entry devices. In a memory conserving embodiment only newly entered player |
| 4336511 |
Method and apparatus for increasing the sweep rate of a linearly swept frequency oscillator |
June 22, 1982 |
| The sweep rate of a linearly swept frequency generator is increased while maintaining strict linearity by artificially increasing the number of zero axis crossings of the output signal from a linearly swept voltage controlled oscillator over those that would naturally occur during a |
| 4333008 |
Polarization coded doublet laser detection system |
June 1, 1982 |
| A system for locating man-made specularly reflecting objects amongst non-specular surroundings such as foliage includes apparatus to initially project orthogonally polarized laser pulses towards a given area and to then detect returned laser pulses which are polarized, while rejecting |
| 4327407 |
Data driven processor |
April 27, 1982 |
| A data driven processor for searching data stored in memory to identify messages or other data containing operator selected keywords containing alpha-numeric or other characters and for performing arithmetic and other functions performed by processors. The processor comprises a plurality |
| 4326175 |
Multi-color, multi-pulse laser system |
April 20, 1982 |
| A laser system for generating two closely spaced in time laser pulses where each pulse is a different color comprises a first and second optical cavity with a common optical leg containing a laser rod capable of emitting light of two polarities along an axis and a polarizing beam-spl |
| 4325412 |
Single stage hydraulic valve |
April 20, 1982 |
| This invention is an electrically controlled single stage hydraulic valve in which the valve spool is moved along the valve sleeve by a small force motor. The valve has spool to sleeve centering devices on the periphery of the spool which reduce friction between the spool and the sleeve |
| 4325068 |
Loran-C signal processor |
April 13, 1982 |
| A Loran-C receiver signal processor is disclosed which processes radio frequency Loran-C signal pulses on a point-by-point, cycle-by-cycle basis to provide the ability to locate on each pulse a tracking point which is used for accurate time difference of arrival measurements between |
| 4325067 |
Method and apparatus for removing noise in a LORAN-C navigation receiver |
April 13, 1982 |
| Noise generated in the front end of a LORAN-C receiver that causes noise bias interfering with carrier cycle detection is effectively removed by periodically shifting the phase of all received signals of 180.degree. in the front end of the receiver and then removing any phase shift else |
| 4318105 |
Loran-C navigation apparatus |
March 2, 1982 |
| LORAN-C navigation apparatus is disclosed wherein digital circuitry and a microprocessor is used to automatically identify LORAN transmitting stations and makes standard hyberbolic navigation measurements. The equipment operator manually enters the group repetition rate into the appa |
| 4312324 |
Wind loss prevention for open cavity solar receivers |
January 26, 1982 |
| Apparatus for minimizing thermal loss in a windowless, open cavity solar receiver due to airflow at the receiver aperture includes means for deflecting wind away from the cavity opening such that flow stream reattachment occurs away from the receiver aperture to provide a dead air zo |
| 4310904 |
Ambient sea noise elimination method and apparatus |
January 12, 1982 |
| An ambient sea noise elimination system is disclosed in which the outputs of a directional hydrophone and an omnidirectional hydrophone are filtered and summed such that the effective receiving pattern below approximately 300 Hz is a vertically oriented dipole pattern having a null in th |
| 4310854 |
Television captioning system |
January 12, 1982 |
| Captioning of television presentations is achieved by transmitting digital data superimposed on the normal FM sound signal by modulation of an ultrasonic subcarrier and receiving the digital data at a viewer's television receiver by picking up the ultrasonic signal from the televisio |
| 4310816 |
Dispersive delay lines |
January 12, 1982 |
| Improvements to dispersive delay lines are provided which involve bifurcation to provide for low insertion loss and a non-dispersive/dispersive delay line which allows for non-simultaneous input/output operation, and removes input/output leakage as a limitation to dynamic range. |
| 4305159 |
Compressive receiver |
December 8, 1981 |
| The envelope detector of a compressive receiver is replaced with either a Fourier Transform device or a demodulator such that the output of the dispersive delay line utilized in the receiver is processed to yield the spectrum of the incoming signals and/or the modulation impressed on the |
| 4300477 |
Aquaculture rearing system |
November 17, 1981 |
| An aquaculture rearing system for improving space utilization and yield is disclosed in which clustered, vertical rearing tanks are provided with individual stacked habitats in the form of baskets attached to a strongback member which houses a removable feeding rod, in which the bask |
| 4300139 |
Loran-C navigation apparatus |
November 10, 1981 |
| A Loran-C navigation receiver is disclosed wherein digital circuitry and a microprocessor is used to automatically identify Loran transmitting stations and makes standard hyberbolic navigation measurements. The receiver operator manually enters a group repetition rate into the appara |
| 4296389 |
Crimped coax reflective dispersive delay line |
October 20, 1981 |
| A dispersive delay line and method for fabricating the delay line is described in which coaxial cable is utilized and in which the dispersive or bandpass characteristic is established by the crimping of the coaxial cable in such a manner that the axial crimp length is small compared to |
| 4268830 |
Self calibration of a LORAN-C navigation receiver |
May 19, 1981 |
| A method for self calibration of a LORAN-C navigation receiver utilizing a microprocessor is disclosed wherein the time difference of signal arrival of master station pulse trains from a LORAN-C chain selected by group repetition interval (GRI) information input to the receiver becomes a |
| 4263895 |
Solar energy receiver |
April 28, 1981 |
| A highly efficient, open-ended solar energy receiver is disclosed having a porous element through which air passes and a conventional heat exchanger positioned above and immediately adjacent to the porous element such that when solar energy is focused onto the porous element, a constant |
| 4254476 |
Associative processor |
March 3, 1981 |
| An associative processor for searching data stored in memory to identify messages or other data containing operator selected keywords containing alpha-numeric or other characters is disclosed. The identified messages or other data are then transferred from the memory to an output device |
| 4247939 |
Spread spectrum detector |
January 27, 1981 |
| A spread spectrum detector utilizes compressive receiver techniques and squaring of the incoming signal to detect the presence of a spread spectrum signal and to obtain its center frequency, with the squaring cancelling the pseudo-random code. Once having determined the center freque |
| 4241292 |
Resistive heater |
December 23, 1980 |
| A resistive heater comprising an emitter, including a hot zone center section and lower temperature end sections, disposed within a protective tube with the emitter and protective tube being mounted within end caps with a spring mechanism provided to allow for the difference in expansion |
| 4225782 |
Wide field of view-narrow band detection system |
September 30, 1980 |
| A wide field of view-narrow band detection system including a radiation responsive member and optical filter is provided by employing optimal angle cones to simultaneously control field of view, throughput and angles impinging on the optical filter. |
| 4224623 |
Loran-C cycle detector |
September 23, 1980 |
| A Loran-C receiver cycle detector is disclosed which processes Loran-C signal pulses on a cycle-by-cycle basis of the carrier frequency and generates an output for a specific carrier cycle. Due to received noise, sampling techniques are used to create a histogram which is analyzed to |
| 4222272 |
Processor for an inertial measurement unit |
September 16, 1980 |
| A processor is provided for an inertial measurement unit which computes its angular velocity and translational acceleration in terms of dynamic variables chosen because they uniquely define the motion of the inertial measurement unit in terms of linear combinations of the outputs of the |
| 4215623 |
Hydraulic velocity and acceleration control system |
August 5, 1980 |
| A hydraulic control system particularly suitable for controlling the acceleration and velocity of a load such as the plunger of die casting equipment is described. The load is controlled by a hydraulic ram which in turn is controlled by a main valve of the kind in which the rate of flow |
| 4215553 |
Energy conversion system |
August 5, 1980 |
| An efficient split cycle solar energy conversion system utilizes sensible heat storage to isolate a solar receiver loop from a Brayton cycle engine loop. In this system a sensible heat storage unit is first charged by the solar receiver, is then switched to the inlet to the Brayton cycle |
| 4212268 |
Aquaculture habitat |
July 15, 1980 |
| An aquaculture habitat is described for the rearing of post larval crustacia in which a cellular honeycomb structure, preferably of opposed cones, provides compartments for the animals and serves as the domicile core. Individual animals are inserted into the core compartments and the |
| 4210400 |
Non-segmented phase gradient detector for coat system |
July 1, 1980 |
| A high speed, two dimensional phase gradient map of atmosphere-induced phase gradients measures the distortion of an optical beam transmitted through the atmosphere. This is accomplished by detecting phase gradients of an interference pattern produced by optically heterodyning a returned |
| 4209151 |
Banner stabilizer method and apparatus for air dropped articles |
June 24, 1980 |
| A banner in the form of an elongated sheet of flexible material is attached to an air dropped sonobuoy for stabilization of the sonobuoy during descent as well as for descent speed control, entry angle control, and wave action damping once the sonobuoy is floating at the surface of the |
| 4208736 |
Hydrophone having a plurality of directional outputs |
June 17, 1980 |
| A directional hydrophone comprises a plurality of coil elements each disposed in an air gap in a common magnetic circuit. In a first embodiment of the invention two coil elements each have a single degree of freedom of motion which is orthogonal to the other. The force due to an acoustic |
| 4203109 |
Submarine communication system |
May 13, 1980 |
| 1. In a method for communicating information between a submerged vessel and a buoy, the improvement comprising the steps ofA. allowing said buoy to assume substantially the same horizontal velocity as the water in which it is floating,B. feeding out a communication cable interconnecting said |
| 4198924 |
Aquaculture rearing system |
April 22, 1980 |
| An aquaculture rearing system for improving space utilization and yield is disclosed in which clustered, vertical rearing tanks are provided with individual stacked habitats in the form of baskets attached to a strongback member which houses a removable feeding rod, in which the bask |
| 4198623 |
Touch entry interactive cathode ray tube arrangement |
April 15, 1980 |
| A display employing a horizontal and vertical grid of parallel infrared light beams in front of a cathode ray tube (CRT) face wherein a finger or other object may be placed against the face of the CRT to mark a spot thereon and the spot so marked will be detected by the interrupted beams |
| 4197545 |
Stripline slot antenna |
April 8, 1980 |
| A slot antenna capable of relatively broad bandwidth operation is disclosed that may be used for wide angle scanning in phased arrays. By shorting the feed element to the slot radiator at multiple points, the relatively broad bandwidth operation is achieved. |
