Patents Examined by Charles B. Meyer
  • Patent number: 4930099
    Abstract: A wavefront vector correlation processor provides rapid, weighted correlation of a given vector with other vectors in a given vector space. In one embodiment the processor includes an interconnected two-dimensional array of simple processing elements that is an electronic analogue of the X,Y plane. Each processing element is connected to neighboring processing elements and is capable of transmitting a pulse to its neighboring processing elements in response to an input pulse. An initial pulse initiated at a processing element having a first classification causes electronic ripples to spread out in chain/reaction among neighboring processing elements. When the electronic ripple reaches processing elements having a second classification, a controller circuit senses these events and measures the time between the initial pulse and the detected pulse. This measured time may then be used to provide correlation between the vector of the first classification and vectors having a second classification.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: May 29, 1990
    Assignee: Hughes Aircraft Company
    Inventor: Patrick F. Castelaz
  • Patent number: 4930075
    Abstract: As a method of diagnosing ischemia non-invasively, the effective component of the ST-segment depression (STe) of an electrocardiogram is measured. A precise mathematical relationship between the values of the ST-segment depression, slope, and length of the ST-segment was defined and implemented, making it possible to compare any ST-segment morphology against a standard reference of horizontal depression.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: May 29, 1990
    Assignee: The Board of Trustees of The Leland Stanford Junior University
    Inventor: Ricardo G. Kortas
  • Patent number: 4924390
    Abstract: A method of processing seismic data involves the input of common depth point data for determination of obliquity of downward propagating energy. Data having known surface offset and travel time is then processed with interval velocities along the depth of survey to solve by matrix inversion for the earth elastic parameters at selected depths.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: May 8, 1990
    Assignee: Conoco, Inc.
    Inventors: Roger Parsons, Robert H. Stolt
  • Patent number: 4912640
    Abstract: An electronic type memo device that stores hand-written input data in pairs with index data and read the desired hand-written data by retrieving the index data. This device features extremely simplified operational procedures in executing input, registration, and retrieval of these data and can be operated efficiently. The electronic type memo device includes a hand-written data input unit allowing the entry of the hand-written data; a key input unit containing the index data input allowing the entry of the index data including time, dates, and pages; and memory unit that respectively store the hand-written data fed from the key input unit and the index data in pairs.
    Type: Grant
    Filed: August 21, 1984
    Date of Patent: March 27, 1990
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shinji Tsugei
  • Patent number: 4894795
    Abstract: An apparatus and method of improving the resolution of a linear FM signal s(t)=a(t)cos .phi.(t) where .phi.(t)=2.pi.(s.sub.o t+.alpha.t.sup.2) is provided by a modified computation of the Wigner-Ville Distribution. An analytical signal ##EQU1## is translated or calculated from the received linear FM signal r(t) so that a Wigner-Ville Kernel sequence ##EQU2## is formulated. An analysis of the frequency of the kernel sequence follows in accordance with a high resolution estimation technique that may include a kind of a least squares approximation fit or an eigenvector spectral estimator such as MUSIC OR ESPRIT to provide an improved time/frequency representation having a resolution of about an order of magnitude better as compared to a conventional discrete Fourier transform frequency analyze of the kernel sequence.
    Type: Grant
    Filed: April 28, 1987
    Date of Patent: January 16, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Harper J. Whitehouse, Boualem Boashash
  • Patent number: 4888695
    Abstract: A signal processing method in autoradiography for determination of the base sequence of DNA or a DNA fragment, employing groups of radioactively labeled base specific cleavage products or mixtures thereof obtained by specifically cleaving the DNA or DNA fragment labeled with a radioactive element and resolved one-dimensionally in parallel relation to each other to form resolved rows on a support medium. An autograph is obtained having locational information on groups of radioactively labeled cleavage products contained in the rows on the support medium. An electrical digital signal corresponding to the autoradiograph are generated by recording and reproducing a radiation image stored in a stimulable phosphor sheet. Sampling points in each resolved row of the digital signal are next detected. Reference sampling points are then determined in a plurality of reference rows which are either directly provided on the support medium and/or synthesized from certain resolved rows.
    Type: Grant
    Filed: January 6, 1984
    Date of Patent: December 19, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Shiraishi, Tsutomu Kimura, Kazuhiro Hishinuma
  • Patent number: 4884200
    Abstract: A signal detecting method in autoradiography, which is applied to an autoradiograph having locational information on radioactively labeled substances such as radioactively labeled biopolymers distributed one-dimensionally, being recorded on a radiosensitive material as a visible image,which comprises steps of:(1) preliminarily scanning a part of the radiosensitive material with a light and photoelectrically reading out a portion of the visualized autoradiograph to give an electric signal, to which a signal processing is applied, to determine one-dimensional distribution direction of the radioactively labeled substances; and(2) finally scanning the radiosensitive material with a light along said one-dimensional distribution direction and photoelectrically reading out the visualized autoradiograph, to obtain the locational information on the radioactively labeled substances as a digital signal.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: November 28, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tsutomu Kimura, Kazuhiro Hishinuma
  • Patent number: 4882724
    Abstract: A communication system for a marketing area locates a light signal generating system and a master computer at a control center and delivers message bearing light signals over optical channels to predetermined subdivisions of the marketing area. Message relay units are provided on the shopping carts in the marketing area for transmitting audio and/or visual messages to the shopper. Among the visual messages transmitted are those which visually display a list of items available for purchase and or display in the marketing area, a graphics display of the marketing area and the merchandise display facilities therein, a video picture which is often of a product or item available for purchase in the marketing area and a traveling word message.
    Type: Grant
    Filed: October 14, 1987
    Date of Patent: November 21, 1989
    Inventors: Leo Vela, Thurman Sasser, Roger L. Martin
  • Patent number: 4873632
    Abstract: The apparatus reduces scatter in radiation imaging and may be used with a detector of ionizing radiation that is partly unscattered and partly Compton scattered. The detector produces an energy signal representing values of energy of the radiation and produces coordinate position information for the radiation. Data storage means for holding numerical values and means for displaying an image based on the numerical values in the data storage means are also used with the inventive apparatus. The scatter reduction apparatus includes circuitry responsive to the energy signal from the detector for producing first and second signals which indicate whether each value of energy represented by the energy signal at a given time is in a first energy range or in a second energy range less than half as wide as the first energy range and having at least some energies in common with the first energy range.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: October 10, 1989
    Assignee: The Curators of the University of Missouri
    Inventors: K. William Logan, William D. McFarland
  • Patent number: 4870580
    Abstract: Disclosed is separation of the compressional and shear components of the wavefield measured in 3-component vertical seismic profiling. The separation involves working in the zx plane defined by the borehole axis (z) and the surface seismic source space therefrom along the x-axis, and in successive and overlapping windows each defined by (i) a depth interval centered at the depth level currently being processed and including several depth levels above and below and (ii) a time interval sufficiently long to allow the relevant seismic wavefield to be measured by the geophones. The total wavefield measurements in a window are rotated to give the wavefield along the borehole axis (z) and that perpendicular to it in the zx plane of interest.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: September 26, 1989
    Assignee: Schlumberger Technology Corporation
    Inventors: Stephen W. Lang, Michael L. Oristaglio
  • Patent number: 4868749
    Abstract: A signal processing method in autoradiography for determination of the base sequence of DNA or a DNA fragment, employing groups of radioactively labeled base specific cleavage products or mixtures thereof obtained by specifically cleaving the DNA or DNA fragment labeled with a radioactive element and resolved one-dimensionally in parallel relation to each other to form resolved rows on a support medium. An autograph is obtained having locational information on groups of radioactively labeled cleavage products contained in the rows on the support medium. An electrical digital signal corresponding to the autoradiograph is then generated. Sampling points in each resolved row of the digital signal are next detected. Reference sampling points are then determined in a plurality of reference rows which are either directly provided on resolved row adjacent to the reference row to identify sampling points in adjacent resolved rows.
    Type: Grant
    Filed: January 6, 1984
    Date of Patent: September 19, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tsutomu Kimura, Kazuhiro Hishinuma
  • Patent number: 4868746
    Abstract: A signal processing method in autoradiography employing a radiosensitive material for the purpose of obtaining information on one dimensional location of radioactively labeled substances distributed in at least one dimensional direction on a support medium, in the form of symbol, numeral or combination thereof, comprising the steps of obtaining a digital signal corresponding to the autoradiograph on a radiosensitive material, by exposing said radiosensitive material to radiation emitted by said radioactively labeled substances on the support medium determining one dimensional scanning line relative to said digital signal; and detecting sampling points on said scanning line, comprising and identifying the positions of said sampling points detected on said scanning line among resolved rows for determining the base sequence of labeled substances.
    Type: Grant
    Filed: January 6, 1984
    Date of Patent: September 19, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tsutomu Kimura, Kazuhiro Hishinuma
  • Patent number: 4866659
    Abstract: A method is disclosed for converting seismic data obtained at known points to synthesized seismic traces obtainable at arbitrarily selected points. Two dimensional seismic data are converted to dense three dimensional data with the aid of a programmed computer to permit generation of arbitrary views of a particular geologic structure as well as a mathematical representation of the structure. The data is used to locate potential drilling and mining locations for drilling oil or other minerals. In order to provide accurate interpolation from the sparse two dimensional data, both apparent and true dip characteristics are obtained for the surveyed structure, and seismic trace data for a desired point are synthesized as a function of the dip of the surveyed structure. The dip characteristics are obtained from partial derivatives of the two dimensional data in specified coordinate directions. A three dimensional surface corresponding to the dip characteristics is obtained by a least squares fitting technique.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: September 12, 1989
    Assignee: Pennzoil Company
    Inventors: Jia-Wen Lin, Tom C. Holloway
  • Patent number: 4866645
    Abstract: An analog neural network composed of an array of capacitors for storing weighted electric charges. Electric charges, or voltages, on the capacitors control the impedance (resistance) values of a corresponding plurality of MOSFETs which selectively couple input signals to one input of a summing amplifier. A plurality of semiconductor gating elements (e.g. MOSFETs) selectively couple to the capacitor's weighted analog voltage values received serially over an input line. The weighted voltage on the input line are periodically applied to the proper capacitors in the neural network via the gating elements so as to refresh the weighted electric charges on the capacitors, and at a multiplex rate that maintains the voltages on the capacitors within acceptable tolerance levels.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: September 12, 1989
    Assignee: North American Philips Corporation
    Inventor: Charles A. Lish
  • Patent number: 4866660
    Abstract: A subpicosecond solid state optical correlator based on interference induced carrier modulation includes a photosensor circuit having a photoconductive element and a pair of opposed electrodes. A voltage difference is created across the electrodes to define an electrical field direction, and the element operates to generate charge carriers in response to optical energy incident on the photoconductive element. First and second optical signals are directed onto the photoconductive element to form an interference pattern thereon when the signals overlap in time and space. This interference pattern produces spatial modulation of the distribution of the carriers into lines or planes, at least some of which are not parallel to the electrical field direction. The resulting photocurrent is monitored to detect a parameter associated with the presence or absence of the interference pattern.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: September 12, 1989
    Assignee: AMP Incorporated
    Inventors: Henri Merkelo, Bradley D. McCredie, Mark S. Veatch
  • Patent number: 4862406
    Abstract: An associative processing module adapts in real time as it is exposed to associated information patterns, (u,v), so, at a later time presentation of one pattern, u, results in recall of the other, v.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: August 29, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Arthur D. Fisher
  • Patent number: 4862360
    Abstract: A signal processing method in autoradiography for determines of the base sequence of DNA or a DNA fragment, by employing groups of radioactively labeled base specific cleavage products or mixtures thereof obtained by specifically cleaving the DNA or DNA fragment labeled with a radioactive element and resolved one-dimensionally in parallel relation to each other to form resolved rows on a support medium. An autograph is obtained having locational information on groups of radioactively labeled cleavage products contained in the rows on the support medium. An electrical digital signal corresponding to the autoradiograph is then generated. Sampling points in each resolved row of the digital signal are next detected. Reference sampling points are then determined in a plurality of reference rows which are either directly provided on the support medium and/or synthesized from certain resolved rows.
    Type: Grant
    Filed: January 6, 1984
    Date of Patent: August 29, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tsutomu Kimura, Kazuhiro Hishinuma
  • Patent number: 4862358
    Abstract: A signal processing method in autoradiography for obtaining information on the one dimensional location of radioactively labeled substances in a sample where the substances of the sample are distributed in at least one row on a support medium where the information is in the form of symbols, numerals or a combination thereof.
    Type: Grant
    Filed: July 8, 1986
    Date of Patent: August 29, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tsutomu Kimura, Kazuhiro Hishinuma
  • Patent number: 4858119
    Abstract: A cooking appliance includes a heating source to provide heat to a cooking medium for cooking food, temperature sensing circuitry for detecting the cooking medium temperature and control circuitry connected to the temperature sensing circuitry for cooking the food according to data stored in the control circuitry by controlling the heating source and removing the food from the cooking medium in accordance with the data. A temperature sensing apparatus is also disclosed that includes a temperature probe for measuring temperature and a reference circuit indicating a referenced temperature. Circuitry is alternately connected to the temperature probe and the reference circuit for alternately providing a first and second output signal indicative of the measured temperature and the referenced temperature respectively. Data processing circuitry is also provided that receives the output signals and computes the measured temperature from the first and second output signals.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: August 15, 1989
    Assignee: The Frymaster Corporation
    Inventors: Gerald Waugh, Charley Myers, John Davis, John Sullivan
  • Patent number: 4855908
    Abstract: In a POS system including at least one controller and a plurality of POS terminals, the controller includes a price look-up file formed by a price look-up table and a sum table. When the price look-up table is searched by a price look-up inquiry signal, the sum table is correspondingly accessed by an address information from the price look-up table and the sum table.
    Type: Grant
    Filed: December 27, 1985
    Date of Patent: August 8, 1989
    Assignee: Fujitsu Limited
    Inventors: Makoto Shimoda, Tatsuyuki Ishino, Makoto Matsuo