Company Filing History:
Years Active: 1986-1987
Title: Innovations of James C Siwik
Introduction
James C Siwik is a notable inventor based in Nashua, NH (US), recognized for his contributions to technology with a total of three patents. His work primarily focuses on advancements in data processing systems and character generation.
Latest Patents
One of his latest patents is the "Variable Loadable Character Generator." This invention allows for a loadable character generator whose operation can be modified to meet various needs, such as accommodating foreign language requirements, without necessitating hardware changes. The character generator efficiently translates character codes into dot patterns using minimal hardware. It replaces traditional ROM/PROM with RAM, utilizing 2K and 8 RAM memories, a 4K by 8 memory, four MUX chips, and a Motorola 6845 CRT Controller, all loaded through the attribute buffer.
Another significant patent is the "Diskette Subsystem Fault Isolation via Video Subsystem Loopback." This data processing system integrates a cathode ray tube (CRT) display subsystem with a floppy disk subsystem. The logic of both systems is verified by generating and transferring a fixed format stream of data bits from the CRT display subsystem to the floppy disk subsystem in modified frequency modulation (MFM) mode. The information received by the floppy disk subsystem is then checked against the original data presented to the CRT display subsystem.
Career Highlights
James C Siwik has made substantial contributions to the field of information systems, particularly during his tenure at Honeywell Information Systems Inc. His innovative work has significantly impacted the efficiency and functionality of data processing systems.
Collaborations
Throughout his career, Siwik has collaborated with notable colleagues, including Thomas O Holtey and Thomas L Murray, Jr. These collaborations have further enhanced the development of his inventions and patents.
Conclusion
James C Siwik's innovative contributions to technology, particularly in character generation and data processing systems, highlight his significant role as an inventor. His patents reflect a commitment to improving technological efficiency and functionality.