Abstract: Techniques for measuring and modeling club-like sports instrument inertial motion sensing signals are disclosed. The disclosed method and system generate corrected output of a motion sensing circuit, which circuit includes an inertial measurement unit and associates with a putting club-like sports instrument. One aspect of the disclosed subject matter includes a method and system for isolating analysis positions of a golf swing, which analysis positions facilitate measuring and modeling the swinging motion. Another aspect of the disclosed subject matter includes a method and system for correcting golf swing measurement errors for more accurately measuring and modeling the swinging motion. Yet another aspect of the disclosed subject matter provides a method and system for determining an impact position of a swinging sports instrument.

Abstract: A method and system define a reference swing for a sports training system, steps of and structures for forming a humanoid for using a plurality of formulae for defining the movements of a sports implement throughout a swinging motion, while using said plurality of formulae for defining the movements of the golf club throughout a plurality of known positions during the swinging motion. The method and system link said humanoid to said plurality of formulae using a plurality of planes perpendicular to the target line, said target line defined as a line passing through the golf ball to the target. A lower plane relates to the shaft of the sports implement; with a first point and a second point of said lower plane associated at the hosel of the sports implement, and an entry point of the shaft into the head on the sports implement and the swinger's hands. A middle plane relates to the plane that passes through two points, the center of the sports implement sweet spot and the right elbow of the swinger.

Abstract: Provided is a sport learning system directed to improving an individual's swing by monitoring a club, bat or racket during a swing. During the course of a swing, the system alerts the individual when the club position varies outside of a predetermined range. The system includes a device inserted into the distal end of a shaft of the club. A second device is attached to a personal computer to provide wireless data transmission with the device mounted in the club. A personal computer application enables swing data analysis and display. The inserted device employs a microprocessor, accelerometers, gyroscopes, memory and a system of buffering and filtering to provide real-time feedback during the swing. It is an additional feature of the inserted device to capture and store data required to reconstruct, display, and analyze swings and to share the data with other applications to facilitate remote instruction.

Abstract: Channel status management system for multi-channel LIU. A method for managing status information in a multi-channel Line Interface Unit (LIU) embodied in an integrated circuit and having a plurality of channels and operable to generate a plurality of status signals regarding the status of various associated parameters relating to the operation of the LIU The method includes the steps of first providing a plurality of channel registers in channel register space for each of the channels in the LIU, select ones of the registers designated for storing status information for the associated channel and wherein there can be a change of state of the status for any parameter associated with the operation of the associated channel. Upon the occurrence of a change of state (CoS) for any of the status information, a CoS indication is provided therefor. A channel status information system (CSM) is provided for monitoring for the occurrence of a CoS indication at any of the channels.