Company Filing History:
Years Active: 1984
Title: Innovations of John E Kammerud
Introduction
John E Kammerud is a notable inventor based in Thousand Oaks, California. He has made significant contributions to the field of optical disk technology. With a total of two patents to his name, Kammerud's work showcases his expertise and innovative spirit.
Latest Patents
Kammerud's latest patents include an "Apparatus for preformatting an optical disk" and "Methods of preformatting an optical disk." The apparatus allows for preformatting each track of an optical disk with spaced header patterns using a plurality of overlapping, individually modulated writing laser beams. These beams are arranged in a line perpendicular to the track, derived from a single multi-line laser to ensure high positioning stability. The adjacent beams are selected to have different wavelengths to prevent the negative effects of coherent interference. The method provides a specific header pattern in a single pass by activating different writing beams during specific time periods as each header recording area is traversed. Additionally, a laser read-after-write beam is included for immediate verification of the recorded header pattern.
Career Highlights
Kammerud has worked at Burroughs, Inc., where he has been able to apply his innovative ideas in practical applications. His work has contributed to advancements in optical disk technology, enhancing the efficiency and reliability of data storage.
Collaborations
Kammerud has collaborated with Robert L Hazel, further enriching his work and contributions to the field.
Conclusion
John E Kammerud's innovations in optical disk technology demonstrate his significant impact on the industry. His patents reflect a deep understanding of the technical challenges and solutions in data storage. His contributions continue to influence the field and inspire future innovations.