Today In History
Theo and Wayne Hart received a patent for a ponytail hair clasp.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8009084 | Fully integrated microprocessor controlled radar display A special purpose decoder and display unit is designed to present special format radar signals for training. Several display formats ease operator workload while acquiring desired radar formats. A reference tone is recorded along with radar signals on a tape and a p... | 08/30/2011 |
| 4869190 | Solid state power failure squib ignition control A torpedo ejects lead weight at the conclusion of a practice run and is bed to the surface for recovery and reuse. A squib is initiated to release the weight by a control circuit which is actuated when the torpedo engine stops. An appropriately interconn... | 09/26/1989 |
| 4857912 | Intelligent security assessment system An intelligent security assessment system includes a multiplicity of sens for detecting intrusion into an area. Each of the sensors operates on a different principle to detect intrusion. For example, sound, vibration, infrared, microwave and light level ... | 08/15/1989 |
| 4851848 | Frequency agile synthetic aperture radar A radar transmission, reception and signal processing system generates high esolution synthetic aperture radar ground maps from air or space platforms using waveforms in which frequency is changed pulse-to-pulse. The transmitted radar signal is comprised o... | 07/25/1989 |
| 4847817 | Broadband sonar signal processor and target recognition system Target discrimination involves processing of sonar echoes in the time-dom and using features of the targets that the human auditory system uses (time separation and amplitude of echo highlights). Known targets are placed in the water and ensonified by mu... | 07/11/1989 |
| 4829494 | Acoustic pinger for use in high speed water entry test bodies Tracking and location of a high speed water rentry vehicle is assured by the inclusion of an acoustic source. An acoustic generator in the form of a piezoelectric transducer is potted in polyurethane and fills a volume aft of a disc-shaped wall in the re-... | 05/09/1989 |
| 4792787 | Wide dynamic range analog-to-digital converter using linear prediction Improved dynamic range resolution or accuracy analog to digital conversion ses linear prediction. An open loop or feed-forward architecture passes an analog signal to a coarse or orthodox analog-to-digital converter that provides digital signals representi... | 12/20/1988 |
| 4788428 | Thermodynamics infrared imaging sensor An infrared imaging system is presented wherein a visual image of a scene being viewed is obtained from the thermal energy radiated from said scene. The thermal energy radiated is focused onto a plurality of means for absorbing energy from the infrared ra... | 11/29/1988 |
| 4759067 | Acoustic regenerator An apparatus for extracting, storing and repetitively replaying a broadband atasample is fabricated from proven electronic components to assure long term reliability and reproducibility. A broadband acoustic signal is digitized and stored in a RAM until it... | 07/19/1988 |
| 4725728 | Fiber optical time delay resonant oscillating strain gauge Longitudinal tensile and/or compressive strain in optical fibers is detered by an entirely optical technique. A test optical fiber optically coupled to optical injection and extraction couplers form an optically recirculating loop. A semiconductor laser ... | 02/16/1988 |
| 4699062 | VLA (alwt) airframe clamshell opener assembly A missile having a payload mounted on an airframe includes a pair of wave aped springs for separating the payload from the airframe at a predetermined time in the flight envelope. Hinged clamshell-half fairing members in the airframe support the payload d... | 10/13/1987 |
| 4682846 | Hermetic high pressure fiber optic bulkhead penetrator A method and apparatus of transmitting optical data through a wall separag a first fiber in a first medium from a second fiber in a higher pressure medium assures optical information transfer. A bore is provided in the wall having an inwardly extending a... | 07/28/1987 |
| 4625332 | Programmable time varying attenuator A programmable time varying attenuator has a reprogrammable digital circuit or impressing an analog attenuation signal on a continuous wave noise signal. This signal is fed to the input of a receiver and since the digital circuitry can be reprogrammed with... | 11/25/1986 |
| 4623219 | Real-time high-resolution 3-D large-screen display using laser-activated liquid crystal light valves A number of viewers wearing polarized glasses are presented real-time, hiresolution, three-dimensional projected images on a distant screen at video image signal rates. Two laser raster scanners each activate a separate one of two liquid crystal light va... | 11/18/1986 |
| 4603398 | Matrix-matrix multiplication using an electrooptical systolic/engagement array processing architecture A electrooptic systolic array architecture performs matrix-matrix multiplication using incoherent light. The incoherent light is collimated and passed through a polarizing beamsplitter and onto a pair of optically reflecting light valves. Each of the valv... | 07/29/1986 |
| 4525956 | In-situ annular face grinder A machine is provided for grinding the top surface of an annular body. The achine includes a block which is receivable within the annulus of the body. The top of the block has a central hole. A plurality of rods slidably extend transversely through the blo... | 07/02/1985 |
| 4499584 | Data validation monitor A method and apparatus is provided for detecting and rejecting spurious sals that may arise in incoming data. A remotely disposed data producing sensor for each sensor data channel and a single blind data channel extend to a receiver or a recorder. A dat... | 02/12/1985 |
| 4494938 | Master buoy system for acoustic array deployment, using underwater glide bodies remotely launched from a submerged pod A method and apparatus deploys a hydrophone array in a predetermined patt. A master buoy includes a float and an anchor which hold a central portion at a predetermined depth in the water. A number of hydrodynamically shaped glide vehicles are disengaged ... | 01/22/1985 |
| 4418404 | Single-sideband acoustic telemetry An apparatus and method of transmitting and receiving information underwa assure improved performance characteristics. Modulating a carrier and appropriately filtering it allows the transmission of only single sideband signals or a carrier along with sin... | 11/29/1983 |
| 4416542 | Nighttime/daytime diffuse attenuation coefficient device for seawater An apparatus and method for measuring the diffuse absorption coefficient of seawater provides reliable readings. An emitter of pulsed light is disposed below the water's surface and an irradiance receiver is located between the pulsed light emitter and th... | 11/22/1983 |
| 4349292 | In-flight hydrophone deployment system for underwater vehicles A hydrophone deployment apparatus is provided for an underwater vehicle, rein the apparatus includes an annular drum releasably mounted about the tail portion of the vehicle. A plurality of arms are pivotally connected to the aft portion of the drum and ... | 09/14/1982 |
| 4313175 | Linearized multiplier device for triple product convolvers The output signals of a number of variable transconductant multipliers are inerized so as to enable a triple product convolver to calculate Fourier transforms or produce beam forming of signals more accurately. Each of the multipliers includes a differenti... | 01/26/1982 |
| 4290697 | Method to eliminate fiber interferometer reflections Improved performance in a fiber interferometer gyro results from eliminat signals attributed to unwanted reflections from the fiber ends and the coupling lenses. A coiled single-mode fiber bidirectionally transmits beams radiating from a continuous wave ... | 09/22/1981 |
| 4243300 | Large aperture phased element modulator/antenna An electro-optical modulator/antenna operates in the tunable diffraction ting mode to vary the magnitude of the zero diffraction order and consequently transmits optical information. A relatively thin slab of lithium niobate or equivalent electro-optic m... | 01/06/1981 |
| 4229812 | Apparatus for securing a ferroelectric stack to a weighted projection surface A coupling ring is bonded onto the opposite ends of a ferroelectric stack ving substantially the same thermal expansion coefficient as the stack. A thin film of silicone compound is wiped onto the axially exposed surfaces of the rings and surfaces provide... | 10/21/1980 |
| 4181152 | Control manifold A manifold controls the venting of pressurized gas from an ordnance launc. A manifold block is provided with a number of passageways which communicate with a pair of recesses machined in the block. A high pressure gas valve is disposed in one of the rece... | 01/01/1980 |
| 4145713 | Composite video signal field recognition circuit An improvement for a stereoscopic system synchronizes a video monitor and a eft-and right-eye viewer. Synchronous operation at a field-by-field rate is triggered by coincidence and noncoincidence of horizontal sync pulses with coincidence pulses derived fr... | 03/20/1979 |
| 4144530 | Combined intrusion sensor line A single composite cable is deployed between adjacent monitoring stations r sensing an intruder. A number of piezoelectric elements disposed in the cable provide electrical intrusion signals when they are disturbed. Power and triggering pulses for the sta... | 03/13/1979 |
