Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7265842 | Method for detecting a gaseous analyte present as a minor constituent in an admixture A gaseous target analyte present as a minor constituent in an admixture with at least one other gaseous species can be detected using a cavity enhanced optical spectrometer by a process comprising the steps of: i) identifying a plu... | 09/04/2007 |
| 7236044 | Apparatus and method for adjusting the substrate impedance of a MOS transistor Method and apparatus for adjusting an impedance of a substrate of a Metal-Oxide-Semiconductor (MOS) transistor by providing a bias voltage and connecting a frequency-selective circuit between the substrate and the bias voltage. The frequency-selective circuit is als... | 06/26/2007 |
| 7203384 | Implement for optically inferring information from a planar jotting surface The present invention relates to a jotting implement that infers hand-jotted information from a jotting surface. The hand-jotted information is any information marked on the jotting surface as a result of writing, jotting, drawing, sketching or in any other manner o... | 04/10/2007 |
| 7195833 | Solid oxide electrolyte with ion conductivity enhancement by dislocation Dislocations are fabricated into electrolyte membrane films to increase ion conductivity. Ion and/or electron irradiation causes the growth of vacancy clusters within the thin film and collapsing into Frank dislocation loops that exhibit high ion conductivity. Maxim... | 03/27/2007 |
| 7179500 | Sub-micron electrolyte thin film on nano-porous substrate by oxidation of metal film A fluid impermeable thin film is fabricated on a porous substrate by depositing a material having a certain spatial oxidation expansion. After deposition, the material is oxidized whereby the deposited material expands and forms a void free film on top of the porous... | 02/20/2007 |
| 7161664 | Apparatus and method for optical determination of intermediate distances An apparatus and a method are disclosed for optically determining a distance r to a feature from an origin or a center. The apparatus uses a beam generation unit for launching a reference beam on a reference path and a first beam on a first path. The center from whi... | 01/09/2007 |
| 7145981 | Volumetric computed tomography (VCT) The present invention provides a volumetric computed tomography (VCT) system capable of producing data for reconstructing an entire three-dimensional (3D) image of a subject during a single rotation without suffering from cone beam artifacts. The VCT system comprise... | 12/05/2006 |
| 7124892 | Safety cone holder device The present invention provides a holder device for securing one or more non-rigid safety cones, each of which having a flexible conical part that can be reduced to a small volume substantially linearly. The holder device has an open frame construction and is lightwe... | 10/24/2006 |
| 6867951 | Spin valve magnetic properties with oxygen-rich NiO underlayer In a spin valve, an underlayer is made of oxygen-rich nickel oxide to enhance the giant magnetoresistive ratio (ΔR/R). The oxygen-rich nickel oxide film is made using reactive sputtering of a nickel target in an oxygen-rich sputtering atmosphere consisting substant... | 03/15/2005 |
| 6753931 | Pulse sequencing for generating a color image in laser-based display systems A system and method for using pulses of laser light delivered in a non-overlapping sequence of first pulses at a green wavelength, second pulses at a blue wavelength and semi-continuous pulses at a red wavelength to illuminate a color generation unit for generating ... | 06/22/2004 |
| 6660640 | Process for planarizing patterned metal structures for magnetic thin film heads A process for planarizing a patterned metal structure for a magnetic thin film head includes the steps of applying an encapsulation/planarizing material on a substrate, spinning the substrate in a photoresist spinner or similar machine, curing the encapsu... | 12/09/2003 |
| 6661622 | Method to achieve low and stable ferromagnetic coupling field A method for making spin valves with low and stable coupling field includes the oxygen exposure steps. In this method, a first ferromagnetic layer is deposited onto a substrate using an ion beam sputtering process. The first surface of the first ferromagn... | 12/09/2003 |
| 6636667 | Tunable optical fiber grating package with low temperature dependency A tunable optical fiber grating package with a supporting assembly and an optical fiber portion having at least one grating between a first end and a second end of the fiber portion is provided. The first end and the second end of the fiber portion define... | 10/21/2003 |
| 6624939 | 50/100 and 50/200 GHz de-interleaver with high isolation and dispersion compensation An optical de-interleaver for de-interleaving light beams of odd and even channel signals having channel spacing S into light beams of odd channel signals having channel spacing 2S and light beams of even channel signals having channel spacing 2S is provi... | 09/23/2003 |
| 6531036 | Fabrication of micron-sized parts from conductive materials by silicon electric-discharge machining A method for fabricating sub-millimeter sized parts uses electrodes created from patterned silicon wafers for electric-discharge machining (EDM), in which an electric discharge is generated between a patterned electrode and a conductive workpiece. Workpie... | 03/11/2003 |
| 6504899 | Method for selecting beam orientations in intensity modulated radiation therapy A method for selecting an orientation of a treatment beam for intensity modulated radiation therapy based on analysis performed on a model of a patient geometry prior to the actual treatment includes a planning target volume (PTV) and the structures at ri... | 01/07/2003 |
| 6496058 | Method for designing an integrated circuit containing multiple integrated circuit designs and an integrated circuit so designed A multi-design integrated circuit having I/O buffers that are shared by multiple designs in the integrated circuit, the multi-design integrated circuit being designed by combining netlists and pin-pad assignment lists for the individual designs into one o... | 12/17/2002 |
| 6445839 | Optical wavelength-division-multiplexed cross-connect incorporating optically controlled optical switch A semiconductor device for modulating an optical power light beam with an optical signal light beam contains a detector diode for absorbing the signal beam and a quantum well modulator diode for absorbing the power beam. Both diodes are reverse biased, al... | 09/03/2002 |
| 6441356 | Fiber-coupled, high-speed, angled-dual-axis optical coherence scanning microscopes This invention provides an angled-dual-axis optical coherence scanning microscope comprising a fiber-coupled, high-speed angled-dual-axis confocal scanning head and a vertical scanning unit. The angled-dual-axis confocal scanning head is configured such t... | 08/27/2002 |
| 6428323 | Medical examination teaching system A system for teaching students to perform medical exams performed manually inside a body cavity includes an anatomical simulator with a simulator cavity, a tactile sensor in the simulator, and a feedback presentation unit in communication with the sensor.... | 08/06/2002 |
| 6425572 | Retractable, telescoping handrail for recreational vehicles A telescoping, retractable handrail for a recreational vehicle automatically extends or retracts when the retractable stairs of the vehicle are extended or retracted. The handrail contains an upper rail pivotally attached at one end to the outer wall of t... | 07/30/2002 |
| 6424173 | Voltage translators with zero static power and predictable performance This invention provide a novel class of voltage translators that translate a set of input logic levels (e.g., Low=0 V and High=5 V) to a set of output logic levels (e.g., Low=-4 V and High=0 V), and vice versa, and consume no static power. In contrast to ... | 07/23/2002 |
| 6423956 | Fiber-coupled, high-speed, integrated, angled-dual-axis confocal scanning microscopes employing vertical cross-section scanning This invention provides an angled-dual-axis confocal scanning microscope comprising a fiber-coupled, angled-dual-axis confocal scanning head and a vertical scanning unit. The angled-dual-axis confocal scanning head is configured such that an illumination ... | 07/23/2002 |
| 6424732 | Object segregation in images Segregating object images from an image is accomplished by a method that includes intensity thresholding and generating isolabel contour lines at image regions of constant image intensity. The shapes of the isolabel contours are quantified by calculating ... | 07/23/2002 |
| 6421195 | Magnetic disk media with patterned sections A magnetic disk medium patterned linear magnetic channels in a radial direction of the disk is employed in a magnetic disk drive unit. The magnetic channels are patterned by high-resolution patterning techniques and are separated by channel boundaries to ... | 07/16/2002 |
| 6420318 | Ceramic superconductor/metal composite materials employing the superconducting proximity effect Superconducting composite materials having particles of superconducting material disposed in a metal matrix material with a high electron-boson coupling coefficient (λ). The superconducting particles can comprise any type of superconductor including Lave... | 07/16/2002 |
| 6418510 | Cooperative cache and rotational positioning optimization (RPO) scheme for a direct access storage device (DASD) A cooperative disk cache management and rotational positioning optimization (RPO) method for a data storage device, such as a disk drive, makes cache decisions that decrease the total access times for all data. The cache memory provides temporary storage ... | 07/09/2002 |
| 6404954 | Angled-axis fiber-optic couplers This invention provides a novel class of fiber-optic couplers that enable fiber-optic elements in an angled-axis alignment to be coupled in a secure and reliable manner. The fiber-optic couplers of the present invention further permit a variable gap betwe... | 06/11/2002 |
| 6393191 | Optical terminal for optical fibers with output angle control An optical terminal using a capillary with a central opening or a bore of a selected cross section and having an insertion opening and a coupling opening. The optical terminal has a light-guiding element, e.g., a lens, positioned in front of the coupling ... | 05/21/2002 |
| 6389899 | In-plane micromachined accelerometer and bridge circuit having same A micromachined accelerometer for measuring acceleration in a direction parallel with the plane of the accelerometer substrate. The accelerometer has a strain-isolation pedestal, a flexure attached to the pedestal, and a proof mass attached to the flexure... | 05/21/2002 |
| 6385007 | Heat dissipation system of magnetic recording disk A system to control the interior temperature and particularly the slider and disk temperature of hard disk drives that utilizes the spindle motor to spin a fanning structure. The fanning structure is preferably integrated into the hard disk drive and init... | 05/07/2002 |
| 6380531 | Wavelength tunable narrow linewidth resonant cavity light detectors A light detector comprising a photodetector disposed within an etalon or microcavity. The light detector is sensitive to light having a wavelength resonant with the etalon. Preferably, the etalon is a solid state microcavity having distributed bragg refle... | 04/30/2002 |
| 6377636 | Method and wireless communications system using coordinated transmission and training for interference mitigation A method for interference mitigation in a wireless communication system having multiple transmitters and receivers by introducing transmission time delays between the transmission of signals from the individual transmitters to ensure coherent reception of... | 04/23/2002 |
| 6377632 | Wireless communication system and method using stochastic space-time/frequency division multiplexing A method and apparatus for wireless transmission of a digital bit stream. The present method employs diversity techniques to minimize multipath fading. Digital bits are converted into symbols and the symbols are provided to a number of diversity branches.... | 04/23/2002 |
| 6377819 | Wireless communication system using joined transmit and receive processing A wireless communication system comprises a base transceiver station and R remote transceivers T1 . . . TR, each of the remote transceivers having multiple antennas. The base transceiver station has N base station antennas, each of t... | 04/23/2002 |
| 6353600 | Dynamic sectorization in a CDMA cellular system employing centralized base-station architecture This invention provides a cellular network architecture in which traffic channel resources are centralized and dynamically allocated to remote cells according to the demand. The present invention provides a method for maximizing capacity resources by dyna... | 03/05/2002 |
| 6346189 | Carbon nanotube structures made using catalyst islands The present invention includes several nanotube structures which can be made using catalyst islands disposed on a substrate (e.g. silicon, alumina, or quartz) or on the free end of an atomic force microscope cantilever. The catalyst islands are capable of... | 02/12/2002 |
| 6324240 | Method for beam hardening correction in quantitative computed X-ray tomography Each voxel is assumed to contain exactly two distinct materials, with the volume fraction of each material being iteratively calculated. According to the method, the spectrum of the X-ray beam must be known, and the attenuation spectra of the materials in... | 11/27/2001 |
| 6314147 | Two-stage CCI/ISI reduction with space-time processing in TDMA cellular networks A two-stage, space-time digital receiver provides improved estimates of data symbols from a received signal comprising the data symbols, co-channel interference, and intersymbol interference. The first stage uses a space-time linear filter to process the ... | 11/06/2001 |
| 6307855 | Network routing table using content addressable memory A routing table comprises routing table entries [230], a word line driver [92], prioritizer [100], and memory [106]. Each routing table entry [230] comprises content addressable memory (CAM) cells [220] and an entry masking circuit. The routing table look... | 10/23/2001 |
