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| Number | Title | Issue Date |
| 6274925 | Low inductance top metal layer design A substrate based package design for semiconductor chips is disclosed which reduces ground loop inductance. The design includes a substrate having a metal layer providing electrical interconnections. The metal layer includes a first conductive area adapte... | 08/14/2001 |
| 5452963 | Crowd control barrier A portable crowd control barrier for use in sporting or entertainment events having lightweight body members formed of a resiliently deformable material and each defining an interior chamber and having slots formed in endwalls thereof to receive wooden st... | 09/26/1995 |
| 5444194 | Decorative speaker enclosure A decorative vase or urn having a high fidelity audio speaker mounted within on a composite ring attached to the inside of the vase by a flexible adhesive to permit dampening of vibrations produced between the speaker and the rigid side of the vase. A plu... | 08/22/1995 |
| 5348028 | Compact multi-use oral hygiene device A dental hygiene kit comprises handle and toothbrush sections which may be separated for storing the brush in a compact relation with the handle. The handle includes an internal cavity for storing included dentifrice, a dental pick and dental floss. A rem... | 09/20/1994 |
| 5110001 | Handle for wafer carrier An improved handle for attaching to and supporting a wafer carrier is described in which robotic fixtures of the wafer carrier are utilized. The locking mechanism of the handle engages the robotic fixtures and then a configuration of flanges and shaped vo... | 05/05/1992 |
| 5094900 | Self-aligned sloped contact A self-aligned, sloped contact, through BPSG and thick TEOS (at least 200 nm but preferably 300-500 nm or more). Sloping is achieved through exploitation of BPSG and TEOS etch characteristics, to independently form concave and convex sidewalls, respective... | 03/10/1992 |
| 5089084 | Hydrofluoric acid etcher and cascade rinser An apparatus used to HF gas etch a plurality of integrated circuit wafers within an etch chamber, followed by a de-ionized water cascade rinse in the chamber. On completion of the rinse and removal of the wafer carriers, the apparatus, housing, and supply... | 02/18/1992 |
| 5084406 | Method for forming low resistance DRAM digit-line A DRAM fabrication process is disclosed for constructing a reduced resistance digit-line. The digit-line is so constructed as to maintain low resistance as it crosses the gaps between word-lines. By bridging gaps having a dimension less than or falling be... | 01/28/1992 |
| 5048664 | Reciprocating staging fixture A reciprocating staging fixture, to precisely stage an integrated circuit component in a lead tinning system. The staging fixture exactly positions components by capturing it on three sides. The fixture also retracts completely out of the way of overhead ... | 09/17/1991 |
| 4887171 | Slant record/helical scan playback certifier A slant record/helical scan playback certifier for high speed magnetic tape certification including a signal generator for producing test data, a slant record head for recording the test data onto magnetic tape, a plurality of helical scan playback head f... | 12/12/1989 |
| 4876549 | Discrete fourier transform direction finding apparatus A discrete fourier transform direction finding apparatus for performing a direction finding function on signals received through two antennae separated by a known distance. The outputs of the respective antennae are connected to first and second receiver ... | 10/24/1989 |
| 4871981 | Fast hopping microwave frequency synthesizer A microwave frequency synthesizer which simultaneously provides increased frequency coverage, reduced channel spacings and improved settling times with a single phase-locked-loop. A VCO and a parametric divider enables a wide frequency coverage to be used... | 10/03/1989 |
| 4870374 | Modulator producing phase modulation by combining amplitude modulated signals A system is described for using the modulation of the phase of a RF carrier as means of transmitting information. The RF input is split into four quadrature components each of which is passed through individual amplitude control attenuators and then summe... | 09/26/1989 |
| 4864563 | Method for establishing and maintaining a nodal network in a communication system A method for establishing and maintaining a nodal network in a communication system is described using a network connectivity matrix at each node of the network. The network connectivity matrix has a plurality of channels each corresponding to a node of t... | 09/05/1989 |
| 4837695 | Method and apparatus for predicting and monitoring aircraft takeoff performance A method for predicting and monitoring the takeoff performance of an aircraft uses information from one or more previous takeoffs of the aircraft to generate a prediction of the takeoff performance for the current takeoff. In the preferred embodiment, a t... | 06/06/1989 |
| 4804154 | Passive aerodynamic load mitigation system A passive load mitigation system for supporting transducers on a body moving through a fluid stream is described. According to the invention, a streamlined aerodynamic surface for supporting the transducers is attached to the body via a pivot axis. The ax... | 02/14/1989 |
| 4793377 | Direct drive servo valve A direct drive servo valve includes a valve housing having a cylindrical bore and a valve spool mounted for movement in the bore for controlling fluid flow through said valve housing. The valve spool has a drive well located in the spool transverse of its... | 12/27/1988 |
| 4786914 | Meanderline polarization twister A polarization twister for twisting the polarization of a wide angle incident electromagnetic wave is described. Specifically, the polarization twister includes a reflector for reflecting the wide angle incident electromagnetic wave, a dielectric substrat... | 11/22/1988 |
| 4764711 | Back emf loop closure The back emf voltage of a motor is extracted from the applied motor voltage and motor current by means of a control system including a back emf sensor, an adaptive motor resistance circuit, and a position integrator. In the back emf sensor a corrected mot... | 08/16/1988 |
| 4757540 | Method for audio editing A method for determining an acceptacle splice point is provided to facilitate splicing of a first segment of an audio signal to a second segment thereof. According to the method, an audio signal is converted into a sequence of samples and first and second... | 07/12/1988 |
| 4734652 | Method and apparatus for wideband frequency discrimination A method and apparatus for wideband frequency discrimination uses a first power divider for dividing an input signal into first, second and third output signals. First and second delay circuits are provided for receiving the first and second output signal... | 03/29/1988 |
| 4730793 | Ordnance delivery system and method including remotely piloted or programmable aircraft with yaw-to-turn guidance system A method and system for delivery ordnance to a target via a remotely piloted or programmable aircraft including a yaw-to-turn guidance system, a deployment and launching system and packaging for the aircraft are disclosed.... | 03/15/1988 |
| 4727351 | High power RF resistor A high power RF resistor for use, for example, as an isolation resistor in an RF hybrid splitter/combiner is formed on a thermally conductive substrate. A first insulating beryllia (BeO) layer extends over the substrate and has a top surface and a bottom ... | 02/23/1988 |
| 4724442 | Method and apparatus for loop direction finding with no ambiguity A method and apparatus is provided for deriving the direction of a received signal from a signal source using first and second orthogonally-mounted loop antennas and an omnidirectional antenna. In operation, output signals from each of the antennas are ge... | 02/09/1988 |
| 4692724 | High power tunable filter A high power tunable filter, for use in a frequency hopping system, is described and includes a transmission line having an input for receiving a high power level input signal to be filtered, and an output. The filter includes a plurality of resonators, e... | 09/08/1987 |
| 4676660 | Method and apparatus for generating a timing signal in a time-of-arrival detection system A noise pulse rejection circuit for use in a pulse type time-of-arrival detection system is described. Preferably, the pulse type time-of-arrival detection system includes a precision distance measuring equipment (DME/P) receiver having a delay-attenuate-... | 06/30/1987 |
| 4654528 | Radiation level reporting system A remote sensing transponder system is disclosed including apparatus for sensing gamma radiation levels proximate thereto, generating a signal indicative of the sensed radiation level, and transmitting an RF Signal modulated with the generated signal to a... | 03/31/1987 |
| 4646097 | Off-channel frequency discriminator circuit for use in a precision distance measuring equipment (DME/P) receiver A precision distance measuring equipment (DME/P) receiver for detecting an RF signal including at least one interrogation pulse is described. The DME/P receiver includes first and second signal processing channels. The first processing channel includes a ... | 02/24/1987 |
| 4644293 | RF pulse modulated amplifier having conduction angle control A pulse modulated amplifier is described comprising a power transistor having a grounded base, an emitter for receiving a drive signal to be amplified, and a collector for emitting a high frequency pulse, the power transistor operating over a substantiall... | 02/17/1987 |
| 4639938 | RF pulse transmitter having incidental phase modulation (IPM) correction An RF pulse transmitter, for use in precision distance measuring equipment (DME/P) of a microwave landing system, includes appropriate circuitry to correct for incidental phase modulation (IPM). The pulse transmitter includes a modulation circuit for gene... | 01/27/1987 |
| 4623999 | Look-up table encoder for linear block codes An efficient look-up table encoder for encoding k bit information words with linear error correcting block codes is provided comprising a plurality of read-only memories having 2x.sbsp.1, 2x.sbsp.2, . . . , and 2x.sbsp.i a... | 11/18/1986 |
| 4623886 | Prioritized data packet communication A method of communicating data in a multinodal peer network communication system is disclosed in which the data is transmitted in accordance with an established priority scheme. The method uses two techniques to ensure that higher priority data is transmi... | 11/18/1986 |
| 4612653 | Delay modulation phase coding The use of delay modulation (or "Miller") phase coding to encode transmitted data is disclosed in a multinodal, peer network communication system. The use of delay modulation provides bandwidth compression and reduces the direct current (dc) voltage compo... | 09/16/1986 |
| 4612575 | T.V. video image correction A video camera image with a motion induced blurring component is corrected by measuring the motion of the video camera by orthogonally mounted rate gyros each producing a signal that varies with camera motion along a defined axis relative to the bore sigh... | 09/16/1986 |
| 4610549 | Method and apparatus for generating a timing signal in a time-of-arrival detection system A noise pulse rejection circuit for use in a pulse type time-of-arrival detection system is described. Preferably, the pulse type time-of-arrival detection system includes a precision distance measuring equipment (DME/P) receiver having a delay-attenuate-... | 09/09/1986 |
| 4608647 | Method and apparatus for determining the noise power ratio (NPR) of a unit under test The present invention describes a method and apparatus for determining the noise power ratio (NPR) of a unit under test (UUT). According to the method, a frequency domain representation of a desired test spectrum is generated by prompting an operator to i... | 08/26/1986 |
| 4592009 | MSK surface acoustic wave convolver A surface acoustic wave (SAW) convolver is provided for use in a communication system in which a received signal incorporates a mixed pseudonoise (PN) code sequence and narrowband information signal phase-modulated thereon according to a minimum shift key... | 05/27/1986 |
| 4590439 | Frequency synthesizing circuit A frequency synthesizer circuit of the phase-locked loop type for receiving a reference signal and generating in response thereto a plurality of local oscillator (LO) output signals is provided. The synthesizer includes a varactor-controlled oscillator ha... | 05/20/1986 |
| 4587525 | 180 degree dipole phase shifter A dipole phase shifter for use in a phased array antenna includes an insulating substrate having first and second sides. A dipole element having first and second conductive dipole arms is formed on the first side of the insulating substrate and a PIN/NIP ... | 05/06/1986 |
| 4584679 | Tack-on acknowledgement in computer networks A method of communicating is disclosed in which the receiving device acknowledges the receipt of a valid transmission and awaits the receipt of an abort message from the transmitting device before accepting the transmitted data. The transmitting device aw... | 04/22/1986 |
