John K Carstedt

Title: The Innovative Contributions of John K Carstedt

Introduction

John K Carstedt resides in Round Rock, TX, and is recognized for his significant contributions to the field of touch input technology. With a total of three patents to his name, Carstedt's innovations demonstrate his expertise and commitment to advancing technology in intuitive human-computer interaction.

Latest Patents

Carstedt's latest patents include a "Touch input device having digital ambient light sampling," which presents a novel approach to enhancing touch input accuracy. The device continuously samples and digitally stores ambient light readings, effectively making the system robust against fluctuating light conditions. The invention utilizes a phototransistor that operates before, during, and after an LED emitter's energization, ensuring accurate detection of the LED pulse.

Another noteworthy patent is the "Signal preconditioning for touch entry device," which employs arrays of emitter and detector opto devices to monitor intrusion in an irradiated field. This system detects opaque elements, such as a stylus, enhancing the accuracy of touch input. An innovative programmable amplifier adjusts the analog signals before they are converted into digital signals, ensuring consistency and precision in the device's response.

Career Highlights

Carstedt is affiliated with Carroll Touch Inc., where he has played a pivotal role in developing advanced touch technologies. His work focuses on bridging the gap between user interaction and device response, pushing the boundaries of what is possible in touchscreen functionalities and applications.

Collaborations

Throughout his career, Carstedt has collaborated with industry professionals, including notable coworkers James E Garrett and Arthur B Carroll. These collaborations have fostered a creative environment that promotes innovation and enhances the development of new touch technologies.

Conclusion

John K Carstedt's inventive spirit and dedication to innovation have left a significant mark in the realm of touch input devices. With his patented developments, he continues to inspire fellow inventors and shape the future of touch technology, proving the valuable impact of creativity in engineering and design.