Other

Yale University

Shipley Company LLC

Robert David Grober

Brian M Dugan

Scott Josef Bukofsky

James Welch Taylor

Gilbert D Feke

Paul Michael Dentinger

James F Cameron

Gerhard Pohlers

Robert J Schoelkopf, Iii

Daniel E Prober

A method for analyzing at least one golf swing parameter using a plurality of accelerometers located proximate the distal ends of a golf club, a signal processing and display system utilizing a double pendulum model of a golf club swing, said model for describing swing parameters and having an upper portion, a pivot point and a lower portion, the method comprising the steps of entering initial swing conditions and golf club parameters; performing a swing and collecting data from the accelerometers; determining a differential mode signal from the acceleration data; calculating the pivot point location relative to each accelerometer using the accelerometer data; calculating a common mode signal using the pivot point; and determining at least one golf swing parameter as a function of time using the common mode signal. In a specific embodiment, the step of calculating the pivot point location relative to each accelerometer comprises the step of minimizing the contribution of the common mode signal into an accelerometer signal comprising the differential mode signal and the common mode signal. The method may also comprise the step of displaying the at least one golf swing parameter.

Method and apparatus for measurement and analysis of a golf swing

A biofeedback system including an elongated member, for feeding back sounds indicative of swing tempo of the elongated member is provided. The system comprises a plurality of acceleration measuring devices adapted to measure accelerations at a plurality of locations along the elongated member; a first microcontroller for processing the measured acceleration signals to reduce effects of gravity and forming a digital number related to an angular rotational speed raised to a power; said digital number comprising a plurality of bits; a second microcontroller for receiving the digital number and associating the bits with a plurality of groups each having an associated tonal composition and amplitude value indicative of bit content and for forming commands indicative of the tonal composition and amplitude value; and a synthesizer responsive to commands and producing an audio signal; and an output for outputting the audio signal.

Golf swing tempo measurement system

Methods of the invention include fluorescence microscopy inspection of an imaged resist layer prior to any type of development processing. Preferred resists for use in the methods of the invention contain a component that facilitates monitoring of a resist coating layer, particularly a component that can function as a proton acceptor and have a change in fluorescence upon exposure to radiation reemployed to pattern an image in the resist coating layer.

Methods for monitoring photoresists

A method of imaging acid in a chemically amplified photoresist comprising the steps of: (a) exposing the chemically amplified photoresist to radiation thereby generating an acid, the chemically amplified photoresist comprising at least one species of pH-dependent fluorophore that fluoresces in the presence of the acid, the pH-dependent fluorophore being present at a concentration that enables the fluorescence from individual molecules of the pH-dependent fluorophore to be individually resolved; and (b) generating an image of the acid in the photoresist, the image comprising at least one or a plurality of discrete points corresponding to the fluorescent emission from an individual molecule or molecules of the pH-dependent fluorophore.

Method for measuring diffusion of photogenerated catalyst in chemically amplified resists

A method of imaging acids in chemically amplified photoresists involves exposing to radiation a chemically amplified photoresist comprising a pH-dependent fluorophore. Upon exposure to radiation, such as deep-UV radiation, the chemically amplified photoresist produces an acid, which is then visualized by the fluorescence of the pH-dependent fluorophore. An image is generated from the fluorescence of the pH-dependent fluorophore, thus providing a map of the location of the acid in the photoresist. The images are able to be visualized prior to a post-exposure bake of the resist composition. Chemically amplified photoresists comprising pH-dependent fluorophores are useful in the practice of the present invention. The method finds particular use in examining the efficiency of photoacid generators in chemically amplified photoresists, in that it allows the practitioner the ability to directly determine the amount of acid generated within the photoresist.

Methods and compositions for imaging acids in chemically amplified photoresists using pH-dependent fluorophores

A swing tempo training device is provided which may be used to teach proper swing tempo. The disclosed swing tempo training device comprises an accelerometer coupled to a voltage-to-frequency converter, and an output means coupled to the voltage-to-frequency converter. The accelerometer measures the real-time acceleration of a swinging object and produces a first voltage signal with a voltage level related to the measured real-time acceleration. The voltage-to-frequency converter then converters the first voltage signal into a second voltage signal with a frequency related to the first voltage level. The output means then outputs the second voltage signal. Preferably the output means comprises a frequency modulator and a FM transmitter.

Method and apparatus for teaching proper swing tempo

A swing tempo training device is provided which may be used to teach proper swing tempo. The disclosed swing tempo training device comprises an accelerometer coupled to a voltage-to-frequency converter, and an output coupled to the voltage-to-frequency converter. The accelerometer measures the real-time acceleration of a swinging object and produces a first voltage signal with a voltage level related to the measured real-time acceleration. The voltage-to-frequency converter then converters the first voltage signal into a second voltage signal with a frequency related to the first voltage level. The output then outputs the second voltage signal. Preferably the output comprises a frequency modulator and a FM transmitter.

A near field electromagnetic probe converts an incident energy beam into an interrogating beam which exhibits, in the near field vicinity of the probe, a transverse dimension that is small in relation to the wavelength of the incident energy beam. The probe comprises an energy source for providing the incident energy beam with a wavelength .lambda.. An antenna is positioned in the path of the incident energy beam and comprises at least a first conductive region and a second conductive region, both of which have output ends that are electrically separated by a gap whose lateral dimension is substantially less than .lambda.. The electromagnetic system which produces the incident energy should preferably have its numerical aperture matched to the far-field beam pattern of the antenna. Further, the incident beam should have a direction of polarization which matches the preferred polarization of the antenna. The near field probe system of the invention can also sense fields in the near field gap and reradiate these to a far-field optical detector. Thus the probe can serve to both illuminate a sample in the near field gap, and to collect optical signals from an illuminated sample in the near field gap.

Growing community of inventors

Milford, CT, United States of America

Robert David Grober