Abstract: An apparatus for use with a digital field sensor comprises a digital communication circuit. The digital communication circuit is operative to output a digital signal indicative of calibration information for the digital field sensor. A processor is connected in operational communication to the digital communication circuit. The processor is operative to receive a value communicated to the processor by the digital field sensor. The processor is also operative to calculate calibration information based on the value and to provide the calibration information to the digital communication circuit.

Abstract: A riding board game controller for sending directional and non-directional control signals to an audio-visual game having a microprocessor-based host computer for sending audio-visual signals to a display device, the riding board game controller comprising: a substantially rectangular platform, pivotally supported along its central longitudinal axis on a playing surface and adapted to support an operator standing thereon, such that side-to-side pivoting of the platform can be performed by the operator; a biasing system, positioned between the platform and the playing surface, for biasing the platform away from the playing surface; a left dual-state switch, positioned between the platform and the playing surface, on the left side of the longitudinal axis, and activated by a pivoting of the platform to the left side; a right dual-state switch, positioned between the platform and the playing surface, on the right side of the longitudinal axis, and activated by a pivoting of the platform to the right side; a cent

Abstract: Apparatus including a video baseball-simulating game and a special bat containing a combination of electronic, mechanical, and optical components for providing infrared radiation or other energy (typically electrical) that is modulated when the player swings the bat and thus actuates a centrifugal switch therein. Receiving and decoding means receive the energy and, responsive thereto, provide digital signals to software in the video game to control an animated batter in the visual display therein.An alternative form of the apparatus functions similarly, except that radiation is emitted from, and received at, a "home plate" on the floor and is modulated by the swinging of an ordinary bat to diffract a portion of the radiation in its path from emitter to receiver.

Abstract: An apparatus for the practicing of golf swings utilizing a motion sensor and a radiation source on the forehead of the user which projects a radiated signal when head motion is sensed. The signal is detected by a unit contemporaneously with the golfer's swinging either-a golf club, if he is outside, or a simulated golf club provided with a beam of radiation emanating from one end thereof, if he is inside. In the case of the simulated unit which may be used indoors, details of club head registry, (open, closed, square, sweet spot, slightly toward the toe, slightly toward the heel, toe, heel, top and bottom) swing, follow through, club head speed, tempo, distance the ball travels and the path of the ball are displayed and recorded.