Company Filing History:
Years Active: 1979-1984
Title: The Innovations of John L. Bidwell
Introduction
John L. Bidwell is a notable inventor based in Loveland, Colorado, recognized for his contributions to the field of programmable calculators. With a total of two patents to his name, Bidwell has made significant advancements in calculator technology that enhance user experience and functionality.
Latest Patents
Bidwell's latest patents include a programmable calculator that employs modular read-write and read-only memories. This design allows for separate expansion to provide additional program and data storage functions tailored to the user's environment. The calculator features two sixteen-bit LSI NMOS central processing units (CPUs). One CPU, known as the Language Processing Unit (LPU), is responsible for language syntaxing, arithmetic, and general supervision of program execution. The second CPU, referred to as the Peripheral Processing Unit (PPU), manages input/output operations. Communication between the two CPUs is facilitated through a shared memory arrangement. The calculator also boasts a comprehensive keyboard with alphanumeric keys for program and data entry, as well as user-definable keys. Additionally, it includes a CRT that operates in both alphanumeric and graphics modes, two magnetic tape transports for information storage and retrieval, and an 80-column thermal printer equipped with 560 thermal print resistors.
Another of Bidwell's patents is a programmable calculator with string variable editing capability. This invention shares many features with his previous patent, including the use of modular memories and dual CPUs for enhanced processing capabilities. The design focuses on providing a user-friendly interface and efficient operation, making it a valuable tool for various applications.
Career Highlights
John L. Bidwell has made significant strides in his career, particularly through his work at Hewlett-Packard Company. His innovative designs have contributed to the evolution of programmable calculators, making them more versatile and user-oriented.
Collaborations
Throughout his career, Bidwell has collaborated with notable colleagues, including Jack M. Walden and William D. Eads. These partnerships have fostered an environment of creativity and innovation, leading to the development of advanced technologies in the field.
Conclusion
John L. Bidwell's contributions to the world of programmable calculators have left a lasting impact on technology. His innovative patents reflect a commitment to enhancing user experience and functionality in electronic devices.