Abstract: A gesture recognition biofeedback device is provided for improving fine motor function in persons with brain injury. The system detects a physical characteristic of the patient and provides feedback based on the detected characteristic. For instance, the system may detect surface muscle pressures of the forearm to provide real-time visual biofeedback to the patient based on a comparison of the detected muscle pressure and predefined values indicative of appropriate motor function.

Abstract: A gesture recognition biofeedback device is provided for improving fine motor function in persons with brain injury. The system detects a physical characteristic of the patient and provides feedback based on the detected characteristic. For instance, the system may detect surface muscle pressures of the forearm to provide real-time visual biofeedback to the patient based on a comparison of the detected muscle pressure and predefined values indicative of appropriate motor function.

Abstract: A gesture recognition biofeedback device is provided for improving fine motor function in persons with brain injury. The system detects a physical characteristic of the patient and provides feedback based on the detected characteristic. For instance, the system may detect surface muscle pressures of the forearm to provide real-time visual biofeedback to the patient based on a comparison of the detected muscle pressure and predefined values indicative of appropriate motor function.

Abstract: A gesture recognition biofeedback device is provided for improving fine motor function in persons with brain injury. The system detects a physical characteristic of the patient and provides feedback based on the detected characteristic. For instance, the system may detect surface muscle pressures of the forearm to provide real-time visual biofeedback to the patient based on a comparison of the detected muscle pressure and predefined values indicative of appropriate motor function.

Abstract: A method and apparatus for determining a dull/broken tool in a multi-tool spindle executing successive machine cycles. The total machine energy supplied to the spindle is determined. The average total machine energy supplied to the spindle in a plurality of successive machine cycles is also determined. The relative machine energy of the last machine cycle is determined by a ratio of the total machine energy to the average machine energy. A limit of the relative machine energy to the average total machine energy is established. The relative machine energy is compared with the limit to determine a tool condition, i.e., a broken tool. The instantaneous energy supplied to the plurality of machine tools is sampled a plurality of times during each machine cycle, and integrated to obtain the total machine energy for each machine cycle. The average total machine energy is updated with each new machine cycle over a predetermined number of most recent cycles.

Abstract: The present invention features a system and method for determining an overload condition in either DC or AC motors. The system of the invention is non-invasive, in that the impedance of or the current in the line is not affected by the system measurement of the line current being drawn by the motor. A pair of current sensing toroids having variable permeability is placed about the lead-wire(s) of the motor, without interrupting the current path in the line. The sensors each consists of metallic glass that changes its permeability as a function of an external magnetic field. Current in the lead-wire(s) creates a magnetic field. The inductance of the sensors varies in direct proportion to the magnetic field. A controller starts the motor. As the motor starts, the pattern of load current drawn by the motor is measured and stored in memory. The sensors are connected to an oscillator circuit, whose output frequency is proportional to the current drawn by the motor load.

Abstract: A digital compass (20) has a sensing coil (60) wound on an elongated strip of high direct current permeability magnetic material. The sensing coil (60) is connected to a sensing circuit (56). The sensing coil and sensing circuit are responsive to the Earth's magnetic field to provide an oscillating signal at an output (28) of the sensing circuit (56) which varies in frequency with orientation of the at least one sensing coil (60) with respect to the Earth's magnetic field. A microprocessor (36) is connected to receive information inputs from the oscillating signal. The microprocessor converts the information inputs to an indication of orientation of the sensing coil with respect to the Earth's magnetic field based on the frequency of the oscillating signal. A display (52) receives the orientation indication from the microprocessor.