Company Filing History:
Years Active: 1987-1997
Title: Paul A Bartholow: Innovator in Light Pen Technology
Introduction
Paul A Bartholow is an accomplished inventor based in St. Louis Park, MN (US). He holds a total of 2 patents that showcase his innovative contributions to data input technology. His work primarily focuses on the development of advanced light pens designed for use with data processing equipment.
Latest Patents
Bartholow's latest patents include the "Adjustable Tip Light Pen" and the "Cordless Light Pen." The Adjustable Tip Light Pen features an adjustable tip assembly that allows users to customize the sensitivity and tactile feedback according to their preferences. This pen can be set for a longer throw of the switch for a definite touch or adjusted for a lighter feel, enabling delicate input such as handwriting or drawing. The design includes an adjustable stop member within the tip housing, which varies the travel length and sensitivity of the pen's actuation.
The Cordless Light Pen is designed for use with cathode ray tube display screens as a data input device for digital computers. It contains a depressible tip made from a specially treated plastic that allows light to pass through. The pen's circuitry amplifies and filters signals from a light sensor, enabling it to discriminate between CRT sweep signals and ambient noise. When the pen is used on the CRT screen, it energizes an IR LED to produce a directed beam of IR energy, allowing the computer to determine the coordinate location of the input.
Career Highlights
Throughout his career, Bartholow has worked with notable companies such as Hei, Inc. and Ftg Data Systems. His experience in these organizations has contributed to his expertise in developing innovative data input solutions.
Collaborations
Bartholow has collaborated with various professionals in the field, including his coworker Douglas E Loebertmann. Their joint efforts have likely enhanced the development of the technologies they worked on.
Conclusion
Paul A Bartholow's contributions to light pen technology have significantly impacted data input methods. His innovative designs continue to influence the way users interact with digital devices.