Assignee: Lockheed Electronics Co., Inc.

Location: Plainfield, NJ
No. of patents: 35

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Number	Title	Issue Date
4855932	Three-dimensional electro-optical tracker Improved performance in an electro-optical tracker is achieved by incorporating range measurements. Further, the tracker uses a Kalman filter in which the target is modeled as the superposition of two Gaussian ellipsoids in space and projected onto an ima...	08/08/1989
4836681	Fringe pattern phase detection system Electro-optical apparatus measures the average relative phase of an incident wave fringe pattern. The subject fringe, e.g., an interferometric pattern, passes through three sections of an optical mask, one characterized by fixed transmissivity and the oth...	06/06/1989
4641137	Radar apparatus for determining range to an agitated reflective target Improved non-cooperative radar apparatus locates and type-classifies an agitated, vibrating reflective target (e.g., a vehicle with its engine running) - whether the target is moving or stationary. A homodyne-type receiver with a cooperating band pass filter e...	02/03/1987
4641138	Radar apparatus for detecting an agitated reflective target Improved non-cooperative radar apparatus locates and type-classifies an agitated, vibrating reflective target (e.g., a vehicle with its engine running)--whether the target is moving or stationary. A homodyne-type receiver with a cooperating band pass filter ex...	02/03/1987
4604582	Digital phase correlator A digital phase correlator compares the relative phase of two or more high-frequency clocks and corrects for any detected phase difference. The phase detector includes a pair of flip-flops whose output is an indication of which of the two clock pulses is ...	08/05/1986
4550859	Microprocessor controlled fluid dispensing system Automated fluid dispensing apparatus operative under stored program control includes an attended console for controlling an array of dispensing pumps or the like, e.g., a pump island in a self service filling station. An array of data input fields, displa...	11/05/1985
4525713	Electronic tag identification system A plurality of differently coded component tags are attached to a plurality of components maintained in a storage location. The component tag codes are stored in a master tag which can be interrogated by a coded interrogation signal to identify the tagged...	06/25/1985
4522351	Motor differential drive reel tensioning system A tape tensioning device for tape recorder drive systems having first and second reels. A mechanical differential is disposed between the reels to permit counter rotation of the reels. A variable torque electrical motor is coupled to the differential for ...	06/11/1985
4502142	Apparatus for detecting errors in a digital data stream encoded in a double density code In the decoding of a data stream encoded in a Miller type code the number of intermediate duration transition intervals are counted between successive transition intervals of long duration. Whenever an odd number of intermediate duration transition interv...	02/26/1985
4497060	Self-clocking binary receiver Binary data is transmitted as signals of two different pulsewidths to respectively represent logic "0" and "1". At the data receiver, the ratio of the pulsewidths is converted into a corresponding voltage ratio, which, in turn, is applied through a voltag...	01/29/1985
4490718	Radar apparatus for detecting and/or classifying an agitated reflective target Improved non-cooperative radar apparatus locates and type-classifies an agitated, vibrating reflective target (e.g., a vehicle with its engine running)--whether the target is moving or stationary. A homodyne-type receiver with a cooperating band pass filter ex...	12/25/1984
4484193	Radar apparatus for detecting and/or classifying an agitated reflective target when relative translation obtains Improved non-cooperative radar apparatus locates and type-classifies an agitated, vibrating reflective target (e.g., a vehicle with its engine running) - whether the target is moving or stationary. A receiver with a cooperating band pass filter extracts a refl...	11/20/1984
4446409	Electronic controller apparatus An improved electronic control system employs a primary servomechanism loop which includes an error signalling difference node and a stability compensating forward gain/drive element intermediate an input command signal source and a controlled output elem...	05/01/1984
4438891	Tape transport system A capstan driven web system having a take-up reel and a supply reel, the tape being drawn from the supply reel by a tape driven capstan arrangement. The drawn tape is collected on the take-up reel which is mechanically coupled to the supply reel by a mech...	03/27/1984
4320287	Target vehicle tracking apparatus Vehicle tracking and position predicting apparatus includes an improved Kalman velocity filter feedback loop having a forward gain matrix for loop coordinate error factors and those of their derivatives; and position predicting computing apparatus in the ...	03/16/1982
4319128	Microprocessor controlled dispensing metering apparatus Microprocessor controlled flow metering apparatus employs mechanically coupled registers driven by a positive displacement or other flow meter to display fluid volume dispensed during a monitored transaction--and as a cumulative total over time. User adju...	03/09/1982
4295081	Load actuating servomechanism with resonance equalization Load actuating servomechanism apparatus includes dynamic regeneration to equalize and overcome a frequency-varying load/load drive train mechanical resonance. The drive circuitry comprises a per se conventional primary motor speed controlling rate feedbac...	10/13/1981
4292676	Refresh cycle minimizer in a dynamic semiconductor memory A refresh circuit for a dynamic semiconductor memory wherein each access to the main semiconductor memory for the storage or retrieval of information is detected and recorded in an auxiliary memory. During each memory access, the memory row being accessed...	09/29/1981
4284942	Load driving apparatus Load actuating servomechanism apparatus includes dynamic regeneration and a mechanically damped motor-load coupling to equalize and overcome a frequency-varying load/load drive train mechanical resonance. The drive circuitry comprises a per se conventiona...	08/18/1981
4249093	Multiple request arbitration circuit Multiple usage requests for a common resource, such as a memory system, are given usage priorities by a multiple request arbitration circuit. Priority is given to a predetermined one of the input signals occurring prior to any one of the remaining input s...	02/03/1981
4215298	Servomechanism rate control system with compensation for motor-tachometer resonance A rate-control servomechanism includes a load driving motor and a tachometer mounted on the motor shaft to produce a feedback signal hich corresponds to the rotational speed of the motor. An additional signal corresponding to the motor current is added to...	07/29/1980
4189732	Motor actuating circuitry Motor driver/control apparatus employs a motor speed regulating amplifier configuration, e.g., two push-pull power amplifiers operable responsive to a motor speed-direction command input signal, and having the motor differentially connected between amplif...	02/19/1980
4178515	Optical signal communicating apparatus A noncontacting data-transmission system for transmitting data between rotating and nonrotating members includes at least one light source capable of transmitting modulated light signals disposed in one of the members. At least one light detector arranged...	12/11/1979
4165913	Rotary optical coupler Binary information developed on a rotating member is applied in the form of light signals to one end of an optical fiber which is disposed about the rotating member and positioned adjacent a stationary light detector. The surface of the optical fiber is r...	08/28/1979
4145016	Tensioning apparatus A mechanism by which more than one torsion spring can be serially coupled to a member to impart a torque thereto equivalent to that from a single spring having the same number of turns as the total turns of the coupled springs. The springs to be coupled a...	03/20/1979
4122441	Error detection and indication system for bi-phase encoded digital data A real-time error detection system for bi-phase or similarly encoded digital data is disclosed. Bi-phase or similarly encoded data, which utilizes two transitions in a bit cell for either a binary "1" or a binary "0" value, and one transition in a bit cel...	10/24/1978
4115860	Plural load power controller with time-shared processor A power controller arrangement employs a digital processor to monitor and control plural loads, e.g., to monitor and maintain at prescribed levels the temperatures of plural missiles. During each load data processing cycle of operation, the processor pres...	09/19/1978
4099245	Transducer signalling apparatus A system for accumulating and processing data derived from plural transducers, such as an array of shaft position-measuring resolvers and/or other monitored parameters, includes multiplexing apparatus for converging the outputs of the transducers and the ...	07/04/1978
4075699	Power monitoring and load shedding system An electrical power controlling/load shedding system includes power consumption metering and meter interfacing circuitry for entering overall power consumption into a central processing unit. The CPU memory includes a data storage table characterizing eac...	02/21/1978
4062005	Synchro-to-digital converter employing common processing apparatus Circuitry monitors a plurality of rotating shafts, and provides a corresponding plurality of binary output words each characterizing the angular position of an associated shaft. Synchro and Scott "T" per-shaft monitoring elements are sampled by common mul...	12/06/1977
4053891	Radar object detector using non-linearities A radar object locator having a transmitter radiating carrier energy in at least one band of frequencies and a receiver tuned to a frequency different from that radiated by the transmitter whereby only a frequency band of carrier energy produced by the el...	10/11/1977
4004729	Automated fire control apparatus Improved automated fire control apparatus includes servomotor positioned weapon(s), range-determining radar, optical sight and controller, and a data processor. Multiple, improved feedback network organizations are provided to control the optical sighting...	01/25/1977
4005379	R.F. power distribution network for phased antenna array An r.f. power distribution network or scanner in which a TEM mode and a pair of selectively phase-shifted TE11 modes are derived and applied to input ports of a cavity resonator to produce a desired r.f. power distribution at a plurality of out...	01/25/1977
4005361	Performance assurance apparatus for phased antenna array drives A circuit for monitoring the accuracy of the phase shift produced in an r.f. power distribution network in which the phase shift network includes diodes, means for sensing the conductive state of the terminating diodes, and structure for comparing the sta...	01/25/1977
3988017	Workpiece feeding device A device for feeding letter mail and the like from a stack of such non-uniform sheet-like articles for individual workpiece processing wherein a plurality of friction feeders define a path for the transfer of mail from the stack and are driven in a pulsin...	10/26/1976

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Assignee: Lockheed Electronics Co., Inc.