Company Filing History:
Years Active: 1980-1994
Title: The Innovations of Pin S Tschang
Introduction
Pin S Tschang is a notable inventor based in Rochester, NY (US), recognized for his contributions to the field of printing technology. He holds a total of 8 patents, showcasing his innovative spirit and technical expertise. His work primarily focuses on non-impact printing methods, which have significantly advanced the capabilities of modern printers.
Latest Patents
Among his latest patents are two significant inventions. The first is a "Dot printer and method for grey level recording and circuit for use in a non-impact dot printer." This invention allows an LED printer to record grey levels by pulse width modulating the exposure on-time for each LED. The exposure time is controlled by comparing a count with a second time-changing count, which varies according to human perception response criteria. This innovation reduces the number of data bits needed to define grey scale and exposure correction information, thereby minimizing the number of data lines required.
The second patent is for a "Non-impact printhead and driver circuit for use therewith." This invention features a non-impact printhead that includes multiple LEDs, driven by a current programmed to maintain a linear temperature profile. The design ensures LED uniformity and minimizes cross-talk between LED channels, enhancing the overall performance of the printing system.
Career Highlights
Pin S Tschang has made significant strides in his career at Eastman Kodak Company, where he has been instrumental in developing advanced printing technologies. His innovative approaches have not only improved the efficiency of printing processes but have also contributed to the evolution of digital printing.
Collaborations
Throughout his career, Tschang has collaborated with talented individuals such as Kenneth D Kieffer and Hieu T Pham. These partnerships have fostered a creative environment that has led to groundbreaking advancements in printing technology.
Conclusion
Pin S Tschang's contributions to the field of printing technology are noteworthy and impactful. His innovative patents and collaborative efforts continue to shape the future of non-impact printing.