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| Number | Title | Issue Date |
| 5914278 | Backside etch process chamber and method A modular semiconductor wafer processing system comprises a chamber with a wafer support and gas manifold structure that supplies reactive gases through a showerhead delivery system to one side of a wafer-being-processed and that exhausts both the reactiv... | 06/22/1999 |
| 5902551 | Process gas docking station with point-of-use filter for receiving removable purifier cartridges A docking station with a filter that sits inline in a process gas channel and that alternatively receives a loopback plate, a sensor plate and a removable purifier cartridge for particle removal as well as the removal of trace amounts of moisture, oxygen,... | 05/11/1999 |
| 5846512 | Method for producing activated alumina catalyst A method of making activated alumina including the steps of dissolving a double salt of aluminum in a solution of pure water at 85° C., recrystalizing the double salt at a pressure about 250 psi and temperature ranging from 200° C. to 250° C., precipit... | 12/08/1998 |
| 5841026 | Automatic transference between real-time operation and post-processing in a GPS survey system A centimeter level survey system includes reference base station and rover GPS units connected by a radio data link. Each includes recorders for the storage of raw measurement information including range, phase, cycle counts and time information. The rove... | 11/24/1998 |
| 5808581 | Fault detection and exclusion method for navigation satellite receivers In a GPS navigation satellite receiver, a pseudorange step detection method integrates the pseudorange rates to predict expected changes in the pseudoranges from one measurement to the next. The pseudorange rate is directly measured as the carrier Doppler... | 09/15/1998 |
| 5798936 | Congestion-driven placement method and computer-implemented integrated-circuit design tool Hierarchical look-ahead congestion-driven placement is a look-ahead method for avoiding interconnect congestion. It balances the available routing resources. When incorporated into conventional quadratic programming approaches, only minor increases in run... | 08/25/1998 |
| 5793643 | Method for handling variable width wires in a grid-based channel router In a grid-based channel router, a method for handling variable width wires. The user initially specifies the widths of the wires. In this manner, wider wires may be selected for special nets, such as those used for routing clock signals, whereas narrower ... | 08/11/1998 |
| 5789661 | Extended range and ultra-precision non-contact dimensional gauge A non-contact pneumatic-electric dimensional measurement system comprises a stable base on which a semiconductor wafer or workpiece to be measured is placed. A measurement head is held aloft over the wafer or workpiece and base by a rigid support bracket ... | 08/04/1998 |
| 5784027 | Snap position benchmark database and method for rapid cold start initialization of base station receivers An initialization method comprises loading a real time kinematic GPS base receiver with at least one position benchmark and setting a snap mode on and selecting a snap distance. The base receiver is transported to the earth location corresponding to any o... | 07/21/1998 |
| 5783280 | Rigid thermal insulation An insulation material comprising the double salt of aluminum potassium sulphate and method of producing such. Aluminum sulphate materials and potassium sulphate materials are combined to form aluminum potassium sulphate which is then dehydrated to remove... | 07/21/1998 |
| 5781788 | Full duplex single clip video codec A single-chip video compression/decompression (video codec) chip is connected to receive a video input from a NTSC-compatible or PAL-compatible camera and a transmit channel. Video information from the camera or other video input source is compressed by t... | 07/14/1998 |
| 5762780 | Method and apparatus for removing bituminous oil from oil sands without solvent A system and method for immediately separating oil sands into three layers uses a logwasher with paddles that mixes the oil sands with hot water and steam. The three layers of bitumen, clay/sand/water slurry and rock separate effectively and immediately a... | 06/09/1998 |
| 5735712 | Shielded connector with condutive gasket interface A modular jack for interfacing a modular plug with a printed circuit board. The jack has a first outer housing segment and a second outer housing segment with a plurality of contacts embedded within the second segment and having pin portions projecting th... | 04/07/1998 |
| 5724046 | Method and system for using a single code generator to provide multi-phased independently controllable outputs in a navigation satellite receiver A navigation satellite receiver for demodulating spread spectrum transmissions on pairs of L-band microwave carrier frequency channels, L1 and L2, which use the same pseudorandom number spreading code. A single P(Y)-code generator is used to produce indep... | 03/03/1998 |
| 5721555 | Frequency spectral line tracking receiver An improved navigation satellite receiver for tracking individual spread-spectrum frequency spectral lines with a microwave receiver antenna to receive signals from orbiting navigation satellites, a downconverter to produce in-phase and quadrature (I and ... | 02/24/1998 |
| 5721465 | Xenon arc lamp with improved reflector cooling A xenon arc lamp comprises a cylindrical ceramic body in which an elliptical reflector is molded to have a diameter of about 1.4 inches. The ends each have metal electrical contact rings, one for the anode and one for the cathode. The body has two differe... | 02/24/1998 |
| 5720868 | Method for producing electrolytic-pot-cell grade alumina from aluminum sulphate A method of making activated alumina includes beginning with a leach liquor of potassium and aluminum sulphates that is subjected to a surface-cooled crystallizer with a heat-exchanger input temperature of 160° F. and a surface-chilled temperature of 60Â... | 02/24/1998 |
| 5700539 | Thin film and interferometric optical disk media and mass production method for fabricating such and multi-layer CDS An optical disk records digital information in optically-reflective layers that each vary in thickness between constructive interference of a monochromatic light and destructive interference of the said monochromatic light. The difference in the intensity... | 12/23/1997 |
| 5691577 | Reflector-pump network for preempting AC power supply harmonic distortion and for satiating the complex harmonic power demand of a rectifier A reflector-pump network is provided for insertion between an AC power supply source and a full-wave rectifier in an AC-DC power converter. The complex harmonic current demands generated by the full-wave rectification process are satiated by a pump in the... | 11/25/1997 |
| 5688447 | Mass production method for fabricating multi-layer CDs An optical disk records digital information in optically-reflective layers that each vary in thickness between constructive interference of a monochromatic light and destructive interference of the said monochromatic light. The difference in the intensity... | 11/18/1997 |
| 5686924 | Local-area position navigation system with fixed pseudolite reference transmitters Several fixed-location pseudolites transmit coordinates of their respective positions to a local area navigation receiver. The respective position and range information to each pseudolite are used to compute the position of the receiver. The pseudolites t... | 11/11/1997 |
| 5686828 | Method for locating the joints and fracture points of underground jointed metallic pipes and cast-iron-gas-main-pipeline joint locator system A method for locating the joints and fractures of underground cast iron gas mains comprises connecting several sections of an underground cast iron gas main pipeline across a sixty watt signal generator with an audio-frequency signal output of 7800 hertz.... | 11/11/1997 |
| 5680737 | Structural connector hub for exhibit booths A strutural connector hub for an exhibit booth. The connector hub provides for a double friction fit connector to secure various components together in place and further provides for a lock to additionally secure various components thereto.... | 10/28/1997 |
| 5672931 | Arc lamp filter with heat transfer attachment to a radial arc lamp cathode heat sink A spectral filter and mounting assembly comprising a flat quartz disk with coatings to control the light spectrum, a heat transfer adapter, a split-ring retainer for use in a drop-in arc lamp assembly that includes an arc lamp with fitted cathode and anod... | 09/30/1997 |
| 5672847 | Computer cable bender A computer cable bender which has two haves that are coupled together. The halves are supported by a base and have arcuate channels of circular cross section to surround the cable. The cable is redirected from a vertical orientation to a horizontal orient... | 09/30/1997 |
| 5669995 | Method for writing and reading data on a multi-layer recordable interferometric optical disc and method for fabricating such A recordable compact disc comprises a 0.6 millimeter clear plastic or glass substrate on which is grown a thin-film image layer having several distinct recording planes. Each recording plane is separated from the next by a clear plastic layer. Each record... | 09/23/1997 |
| 5667592 | Process chamber sleeve with ring seals for isolating individual process modules in a common cluster A modular semiconductor wafer processing system comprises a plurality of detachable process reactors and other types of generators that can be attached to any of several ports on the lid of a circular wafer handling chamber. A multiple-spoke single-axis r... | 09/16/1997 |
| 5663016 | All-polymeric phase shift masks An embodiment of the present invention is a process in which a polymer solution is spin coated onto a master data recording disk, such as glass substrate with photoresist images, before separating. After drying and forming polymer, a polymer membrane resu... | 09/02/1997 |
| 5662880 | Method for producing catalyst-grade alumina from aluminum sulphate A method of making activated alumina includes beginning with a leach liquor of potassium and aluminum sulphates that is subjected to a surface-cooled crystallizer with a heat-exchanger input temperature of 160° F. and a surface-chilled temperature of 60Â... | 09/02/1997 |
| 5662143 | Modular gas box system A modular gas box system comprises a series of modules that each connect into upper and lower manifolds that distribute reactive and purge gases through weldments and monoblock valves. A motherboard distributes power, control signals, and pneumatics air t... | 09/02/1997 |
| 5647765 | Shielded connector with conductive gasket interface A modular jack for interfacing a modular plug with a printed circuit board. The jack has a first outer housing segment and a second outer housing segment with a plurality of contacts embedded within the second segment and having pin portions projecting th... | 07/15/1997 |
| 5642285 | Outdoor movie camera GPS-position and time code data-logging for special effects production A GPS navigation receiver with a data output port for communicating a position estimate frame-by-frame and time codes in SMPTE format. The conventional date and time sentence output of the GPS navigation receiver is combined with a highly-accurate one pul... | 06/24/1997 |
| 5635114 | Method of making thin film optical storage media An optical disk records digital information in optically-reflective layers that each vary in thickness between constructive interference of a monochromatic light and destructive interference of the said monochromatic light. The difference in the intensity... | 06/03/1997 |
| 5627548 | Navigation wristwear A navigation wristwear device comprises a GPS receiver fully disposed in a wrist watch type housing. A transparent microwave patch antenna is patterned of indium-tin-oxide on sapphire in front of an LCD time, position and velocity display. A bezel provide... | 05/06/1997 |
| 5625668 | Position reporting cellular telephone A cellular telephone system embodiment of the present invention comprises a combination global positioning system (GPS) receiver and cellular transceiver and a data processing facility for converting latitude, longitude, velocity and bearing information p... | 04/29/1997 |
| 5625365 | Dual-frequency microwave radio antenna system An antenna system for a navigation satellite receiver tuned to dual-frequency transmissions from orbiting navigation satellites. Respective L1 and L2 microwave patch antennas are mounted flat and adjacent to one another on a common ceramic substrate and h... | 04/29/1997 |
| 5621267 | High-power metal halide reflector lamp A metal halide lamp includes a cast ceramic reflector almost completely comprised of alumina. A conventional metal halide bulb is positioned within the reflector. A glaze and then a dielectric coating are applied to the inside surface of the reflector, su... | 04/15/1997 |
| 5612595 | Electronic dimming ballast current sensing scheme A dimmable fluorescent lamp system embodiment of the present invention comprises a fluorescent lamp with filaments at each end that are continuously heated by independent secondary windings of a transformer. A resonating capacitor is connected in series w... | 03/18/1997 |
| 5612594 | Electronic dimming ballast feedback control scheme A dimmable fluorescent lamp system comprises a fluorescent lamp with filaments at each end that are continuously heated by a transformer. A resonating capacitor is connected in series with a resonating inductor and a pair of DC blocking capacitors are con... | 03/18/1997 |
| 5610614 | Real-time kinematic initialization test system A real-time kinematic system includes base and rover GPS units connected by a data link. The rover unit is typically moved to points of interest during a survey while the base remains over a fixed, and known location. An initialization testing program of ... | 03/11/1997 |
