Abstract: A physical exercise system uses conventional downhill or cross-country skis and poles in a skiing exercise system. An ski holder (elevated structure) is attached to the end of each of the pair of skis and a plug is attached to each of the pair of ski poles. The exercise may be performed in the living room environment on a residential carpet.When the skis are moved from a generally horizontal exercising position to a vertical position, for storage or display, the flat base of the ski holder provides for stable upward display and storage of the skis.An exercise method is disclosed which may provide the skier five aerobic points a day in a single twelve-minute exercise period.
Abstract: A system and method is provided to transmit logmap video images through telephone line band-limited analog channels. The pixel organization in the logmap image is designed to match the sensor geometry of the human eye with a greater concentration of pixels at the center. The transmitter divides the frequency band into channels, and assigns one or two pixels to each channel, for example a 3KHz voice quality telephone line is divided into 768 channels spaced about 3.9Hz apart. Each channel consists of two carrier waves in quadrature, so each channel can carry two pixels. Some channels are reserved for special calibration signals enabling the receiver to detect both the phase and magnitude of the received signal. If the sensor and pixels are connected directly to a bank of oscillators and the receiver can continuously receive each channel, then the receiver need not be synchronized with the transmitter.
December 4, 1991
Date of Patent:
December 29, 1992
Vision Applications, Inc.
Richard S. Wallace, Benjamin B. Bederson, Eric L. Schwartz
Abstract: A graded index lens having one end-surface thereof adapted for connection to an optical fiber or the like characterized by an axially asymmetrically tapered end portion terminating in the end-surface.
Abstract: A computer system utilizes a parallel data broadcast architecture, called "PDB" is adapted to be connected to a host computer system. In one digital embodiment, the PDB system includes an interface and global memory which is connected to the host computer system and to three common buses. The buses, in parallel, are, respectively, a data broadcast bus, an instruction bus and an output bus, each bus being connected to a plurality of computational units. Each computational unit includes an arithmetic processor, which preferably, in this embodiment, is a digital signal processor (a special-purpose integrated circuit microprocessor), a local memory and a local program memory. The computational units receive the input data simultaneously and in parallel; transform the data, depending on the parameters received from the instruction bus; and communicate their results, by multiplexing, to the output bus.
Abstract: Probes for medical surgery and flexible catheters for internal tissue ablation in which the tissue cells are frozen and deadened and yet extreme supercooling of tissue below the tissues' melting point is not required. The tissue cells are moderately supercooled by the probe or catheter and freezing of the cells is caused by cavitation nucleation of ice particles within the cells induced by a low power ultrasonic wave generator. The ultrasonic energy causes well distributed nucleation in the supercooled tissue cells and, as a result, the cells rapidly freeze and, due to such freezing, expand and burst their membranes.
Abstract: An improved brain wave electroencephalograph (EEG) method measures the physical positions of EEG electrodes applied to the subject's scalp. A set of standard cross-directional lines are obtained to provide measurements of the subject's head and a computer system automatically defines the subject's head shape according to predetermined head shape classes. The position of the electrode on the subject's scalp is then determined by scaling the measurements of the subject's head to a head model of the same head shape class.
Abstract: A system and method for the accurate reproduction of the tone and luminance of a first video monitor screen includes, in one embodiment, a first video monitor and a second video monitor, each with a CRT screen. A gray scale test pattern is shown on both screens. The test pattern on each screen is measured using a spot photometer and the results are entered into a computer memory look-up table and compared, a tone-by-tone basis. A set of corrections is obtained for each tone of the gray scale. Those compensating corrections are used to adjust the luminance, on a pixel-by-pixel basis, of the second video screen of the second video monitor, so that the second screen is compensated to produce a gray scale which reproduces the tone and luminance values of the gray scale on the first screen.
Abstract: An oral fixture implant system for supporting a prosthetic denture structure in which fixture posts are implanted onto subperiosteal seats. A vertical projection shaft of the fixture post extends through the fibromucousal tissue and into the oral cavity. A fixture post collar is placed above the fixture post and a fixture retention bar with apertures corresponding to the fixture post locations is mounted over the collars allowing the upper portion of the fixture post projections to rise above the retention bar surface. The denture structure is fabricated with a grooved undersurface that accommodates the fixture retention bar and depressions in the groove fit over the tops of the fixture post shafts.
Abstract: A heat pump system operates by the inverse magnetocaloric effect in which the working medium is a superconductive body of type II superconductive material having a critical temperature above 23.degree. K. The superconductive body is cooled to below its critical temperature and subjected to a changing magnetic field, which decreases the concentration of paired charged carriers without their complete elimination and induces cooling and/or absorbs heat of the working medium.
Abstract: A method and apparatus are provided for treatment of acid fumes to reduce the acid content of the fumes to meet the stringent environmental requirements. The acid fumes are treated in a packed zone containing, as the packing materials, polyester resins treated with aluminum sulfate crystals.
Abstract: An electronic dictionary or language translator is in the form of a thin electronic device, preferably at least 3".times.6" in size so that it may be placed in a book and used during reading. The electronic device has a relatively large display area and its keys are spread apart so that they may be readily operated by the fingers of either hand. The device utilizes a specially arranged keyboard with an alphabetical sequence of the letters, but with the vowels positioned so that they start and end each row. In addition, certain vowels are repeated both on the left and right sides of the keyboard.
Abstract: A system for cleaning teeth includes a vacuum motor and a liquid container, each being connected through suction and liquid lines, respectively, to a teeth cleaning head which forms an air tight chamber over two to five teeth. In one embodiment, a one-piece head member has a resilient oval lip which seals against the teeth, a cavity, and a rotatably mounted cleaning roller in the cavity, with the roller being roated by the force of the liquid as the liquid is pulled over the roller by the vacuum. In another embodiment two clamp members, each having a resilient lip, are urged against the front and back faces of adjoining teeth by a spring to form an air-tight chamber on the teeth.
Abstract: A railing system is composed of vertically aligned metal tubes and cross-members which are metal tube rails. The posts are formed with round protruding bosses whose outer diameter (OD) is the same as the outer diameter of the posts. The rails also have the same outer diameter. The bosses and rail ends may be brought into roundness, so that they match in a smooth circumferential seam, by round plugs forced into the bosses and rail ends. The post-rail joints are then welded in a circumferential weld.
Abstract: In a brain wave detecting system, in one embodiment, a flexible hat is placed on the head of the patient. The hat contains a plurality of electrodes conforming to the hat. A circuit board having a low-noise integrated circuit amplifier may be mounted thereon. Each electrode uses a plurality of metal conductive fingers which protrude through the hair to the scalp and provide multi-contact sites on the scalp for each electrode. The tips of each electrode contact the user's scalp to provide a redundancy of contacts for each electrode.
July 19, 1990
Date of Patent:
August 13, 1991
Sam Technology, Inc.
Alan S. Gevins, Donald Durousseau, Joel Libove
Abstract: In a medical imaging system a patient is injected with a radiopharmaceutical spontaneously emitting positrons and a PET (Positron Emission Tomography) scan is taken along parallel planes of a portion of the subject's body to produce a slice image composed of pixels arranged in a pattern. The intensity of each pixel is automatically, in a computer system, converted to digital data. The computer system then normalizes the pixels of the slice as to location by calculating the location of each pixel in an ideal or normal slice. The computer system then calculates a Z transform, on a pixel-by-pixel basis, compared to the slices from a normal group to obtain a topographic color-coded map showing the degree of abnormality at each pixel location.
Abstract: A program of regular vascular exercise involves repeating cycles of blood movement obtained by seating the user in the base portion of the apparatus and clamping a top member shell to the base portion. Under the user's control pressurizing apparatus, controlled by a microcomputer based timing arrangement, inflates and deflates a series of pressure cuffs around each limb to provide a peristaltic-like action which forces blood toward the trunk of the body.
Abstract: A magnetoencaphalogram (MEG) detects the neuromagnetic brain signals of a subject by bringing a set of magnetic sensors, preferably SQUIDs (superconducting quantum interference device), close to the scalp of the subject. The adverse effect of environmental magnetic noise is reduced by using a second set of magnetic sensors which are placed near the subject. The system includes a bandpass filter, to divide the signals from the various sensors into predetermined frequency bands, and a computer to provide a least squares noise component estimate of the noise from each brain wave sensor and to calculate therefrom a filtered brain wave signal having reduced noise.
Abstract: An illuminated sign system, e.g., an illuminated canopy or roof ridge for petrol stations and the like, comprising a trough with one or more electrical fluorescent tubes partially covered by a light shield having areas of differing light transmissivity, e.g., filters or translucent areas, with reflecting screens in oblique position in the rear, optionally colored to reflect light of one or more selected colors, and a front side of transparent weather-proof material covered with translucent colored indicia.
Abstract: A method and system in Nuclear Magnetic Resonance (NMR) medical imaging systems corrects for three-dimensional distortions arising from the apparatus and patient specific distortions using a phantom and a helmet, both of which have fiducial markers in a three-dimensional matrix. The positions of the phantom and helmet fiducial markers are automatically detected and compared in a computer system which uses image transform algorithms to correct for the various distortions.