Abstract: An adapter for an optical instrument to control the angle of the plane of focus of the instrument. The adapter has front and rear coupling faces, a secondary lens and a tilt-swing mechanism or a fixed tilt. The adapter's rear coupling face is connected to the optical instrument, an interchangeable primary lens is connected to the front coupling face of the adapter and the tilt-swing mechanism tilts or swings the primary lens relative to the image plane. The tilt-swing mechanism, which controls the angle of the plane of focus, would allow, among other things, for the utilization of Scheimflug's principle.
Abstract: A process of hydrogenation in solution of polymers of conjugated dienes in the presence of homogeneous catalysts which contain, as an essential component, a titanium compound of the type Cp.sub.2 Ti(PhOR).sub.2, where Cp is a cylopentadienyl group, ph a phenyl group, and OR an alkoxide group containing 1 to 4 carbon atoms; or a titanium compound of the type Cp.sub.2 TiR.sub.2, where R is a Ch.sub.2 PPh.sub.2 group.These catalysts are very active in the selective hydrogenation of the double bonds of the diene units of polymers or copolymers of conjugated dienes having number-averaged molecular weights or between approximately 500 and 1,000,000 and, in particular, of random and block copolymers of styrene and butadiene or isoprene, the latter containing at least one styrene block and one polybutadiene and/or polyisoprene block.
February 23, 1995
Date of Patent:
December 10, 1996
Repsol Quimica S.A.
Maria D. Parellada Ferrer, Juan A. Barrio Calle
Abstract: A system to monitor the force with which a user strikes keys on a computer keyboard and to alert a user if the force used is greater than a threshold. The system includes a keyboard having a casing and a programmable computer processor coupled to the keyboard. The programmable computer processor includes a sound card having a microphone input port. A vibration sensor (transducer) is mounted on the casing of the keyboard to sense vibrations when the user strikes the keys of the keyboard. The sensor is coupled to the sound card of the programmable computer processor via the microphone input port. The sensor generates electrical signals as input to the sound card. An alarm is output in real-time to the user of the keyboard when the sensor's signals are greater than the threshold.
Abstract: In conventional water meters, there is not a proportion between the flow velocity of water flowing through the meter and the movement of the part that measures, i.e., the rotation of the turbine. That lack of proportionality may be a cause of error. This problem is solved by an electronic automatic correction system, which compares the measurement data with a data base stored in its memory, effects the necessary corrections and supplies the exact reading of the actual volume of water used. The meter is able to detect low water flow and water leakage.
Abstract: A method for vascular exercise involves the subject performing physical exercise to raise his heart rate at least 25% above his normal rate. Then a series of air-inflatable bladders (cuffs) on the subject's limbs are inflated in sequence, starting with the bladder furthest from the trunk, to force blood toward the trunk. Preferably a nose clip feeds oxygen to the subject during the physical exercise, and the subject lies prone with his legs raised, during the inflation of the bladders on the legs.
Abstract: The spatial resolution of electroencephalograph (EEG) medical images is improved using "Deblurring" based on a digital computer based analysis using volumetric finite elements and a biophysical model of the passive electrical conductivity of a subject's head.
Abstract: A method and system to detect and identify a target vehicle displaying a switched or invalid license plate includes a license plate reader to read the plate number carried by a target vehicle in its area. A pair of spaced laser beams measures the speed and length of the traveling vehicle. The read license plate numbers are compared with a data base of registered vehicles to obtain the length of the vehicle registered for that plate. If the registered length differs from the measured length, the plate may be illegally on the target vehicle.
Abstract: A dog leash teaching lead is used to teach a dog to behave in the house and outside. At its outer end (distal end) the leash has a fastener clip which attaches the leash to the dog's collar. A station hole, about 3-7 inches from the fastener clip, is used to attach the dog to a post or other object. A series of from 3 to 7 waist holes, near the proximal end (the owner's hand) are used to attach the dog to its owner or the owner's family members. An end fastener clip, at the proximal end, may be connected, alternatively, to the station hole or one of the waist holes or a ring held by the leash.
Abstract: In a computer based system and method for behavior testing of human subjects, the subject is simultaneously presented with stimuli in two modes, for example, a screen showing a moving target spot and a subject controlled pursuer, and also a tone which varies in pitch and changes in amplitude as between left and right earphones. In one embodiment, the subject's brain waves are detected and measured, using an electroencephalograph (EEG) instrument, at the same time the subject is performing the test.
Abstract: A medical device for eye surgery, particularly retinal surgery, combines a flow of infusing fluid and optical fiber illumination. The device uses a single strand of plastic optical fiber which extends through bores in a juncture device, tube and needle cannula with sufficient clearance to permit the flow of the infusing fluid.
August 15, 1994
Date of Patent:
August 13, 1996
A.V.I. - Advanced Visual Instruments, Inc.
Abstract: A stereoscopic microscope system is adapted for vitrectomy eye surgery. A conformer lens positions the eye being operated upon and an aspherical lens system, adjacent the conformer lens, produces an inverted image. That image is reinverted by a prism system having two pairs of prisms, each pair being an Abbe's Modification of Porro prism system. Each prism of the prism system has the same size and shape and the prisms are cemented together to form a unitary prism cluster.
Abstract: In an EEG (electroencephalogram) system to detect brain waves from a subject, the adverse effect on the EEG recording of artifact due to head, body and eye movements is reduced. A head and body movement reference signal can be provided by an accelerometer, motion detector or, alternatively, spatial average of EEG channels. Eye motion sensors are used as a reference for eye movement artifacts. A composite reference signal consists of the head, body and eye movement reference signals. The contaminated EEG is the primary input to the adaptive movement and eye artifact canceler, in which an adaptive filter estimates the contaminants in the measured EEG data, and then subtracts them from the primary signal to obtain the corrected EEG data.
March 22, 1994
Date of Patent:
May 7, 1996
SAM Technology, Inc.
Alan S. Gevins, Weixiu Du, Harrison Leong
Abstract: A new type of electron microscope comprises a charged particle source and a condensor that form a dark-field illumination system with an incident beam of a small spatial coherence width compared to the transverse dimensions of the specimen. An interferometer is positioned along a direction of scattering to produce the superposition of two lateral areas of the scattered beam to form interference and to vary the amount of shear. The microscope includes a rotation means for turning the direction of shearing relative to the scattered beam around the scattering direction. The interference fringes are recorded by a detector at different directions of shear with variable amount of shear within each shear direction. A data processor (digital computer) evaluates the visibility and the phase shift of the interference fringes to obtain Fourier components of an image of the specimen and to synthesize the image from those components.
Abstract: A one-piece body suit (cat suit or jump suit or romper) has a rear drop-seat portion. That portion is formed with a central panel and two opposite triangular panels extending therefrom which cross each other at the front of the garment. Fastener ends at the ends of the triangular panels are removably fastened at the back of the wearer.
Abstract: An electronic method and apparatus in electroconvulsive therapy (ECT) to automatically measure the electrical dosage of an ECT device at the time of stimulus and to prevent delivery to the patient of a dosage that is substantially (e.g., more than 5%, or 25 millicoulombs [mC], or 5 joules [J]) larger than the dosage selected by the operator. When the measured dosage varies more or less than a selected limited amount, or proportion, from the stimulus dial setting (e.g., 5% or 25 mC or 5 J), visible and/or audible signals are triggered and the device is blocked from delivering further stimuli without first being reset.
Abstract: A television signal digitizing method reduces the quantity of information without deterioration of image quality when digitizing progressive-scanned signals. The method uses a step of dividing a progressive-scanned information into two complementary interlaces, that is, an interlace 1 and an interlace 2; a step of converting luminance information in the interlace 1 to digital information whose sampling frequency is X; a step of converting chrominance information in the interlace 1 to digital information whose sampling frequency is Y; and a step of generating supplementary information.
January 19, 1994
Date of Patent:
October 10, 1995
Nippon Television Network Corporation
Akihiro Hori, Tadao Kurosaki, Masakatsu Tanaka
Abstract: An optical stereoscopic microscope system is adapted for eye surgery and includes a conformer lens which fits over the eyeball being operated upon. A wide-angle aspherical lens system includes two convex-concave lenses and magnifies the image from the conformer lens to produce an inverted image. A beam splitter splits the inverted image into separated left and right inverted images each of which are reinverted by a pair of prisms, each prism pair being a pair of an Abbe Modification of Porro Prisms.
Abstract: A lock system adapted to be used with both conventional mortise and cylinder locks includes an electronic socket to removably receive a button-like metal casing having an integrated circuit therein. The socket transmits code to a microprocessor based circuit which control a rotary two-directional motor. In one embodiment, the motor turns a cam which lifts, or lowers, a frame-like slide having a plunger which fits into a cavity of the cylinder to lock the cylinder.
Abstract: An electronic fluid meter, such as a water meter, has a body through which the fluid flows, a rotor having magnetized blades and a sensor-transducer proximate the blades. The rotor is formed by injection-molding or sintering a mixture of a plastic resin and magnetizable particles, preferably strontium ferrite particles.