David J Howarth

US Patent:

59181940, Jun 29, 1999

Filed:

Aug 1, 1997

Appl. No.:

8/905064

Inventors:

John Banaska - No. Royalton OH
David J. Howarth - Lakewood OH
Michael P. Minneman - Hudson OH
Bob Spinks - Bedford OH

Assignee:

Keithley Instruments, Inc. - Cleveland OH

International Classification:

G01R 100
G01R 1925

US Classification:

702 91

Abstract:

An integrated modular measurement system includes a universal module which is operable to receive measurement data from one or more measurement sensors, convert the measurement data into a value that represents a characteristic being measured and indicate the value to a user in a plurality of signal formats. An input module is coupled to the universal module and is operable to house one or more measurement sensors. The universal module and input module together operate to provide versatile measurement acquisition. A custom calibrated sensor module includes one or more sensors and a memory associated with and local to the one or more sensors. The memory contains calibration information which is uniquely associated with the sensors. In taking a measurement, the calibration information associated with the sensor taking the measurement is accessible for conversion instructions to thereby improve conversion accuracy. A method of interfacing a universal module to a plurality of measurement sensors includes coupling one of the measurement sensors to the universal module and identifying the measurement sensor being used.

US Patent:

20160298930, Oct 13, 2016

Filed:

Apr 13, 2015

Appl. No.:

14/685068

Inventors:

Carl Wesley Squire - Dexter MI, US
Jamey Joseph Cates - Ann Arbor MI, US
David James Howarth - Ann Arbor MI, US

International Classification:

F41G 3/26

Abstract:

A target practice system includes a target, a first optical sensing unit that views an image on the target, a second optical sensing unit that views a user of the target system, and a data processing unit that communicates with the first optical sensing unit and the second optical sensing unit. The image on the target is either a static or dynamic image that changes over a defined time period, and an algorithm may be implemented in the data processing unit to analyze the image to determine shots on the image. The algorithm may also analyze a user image of the user captured by the second optical sensing unit to identify characteristics of the user.