Company Filing History:
Years Active: 1985
Title: The Innovative Contributions of Allan A Schwartz
Introduction
Allan A Schwartz is a notable inventor based in San Jose, California. He has made significant contributions to the field of magnetic recording technology. His work has led to advancements that enhance the efficiency and accuracy of data retrieval processes.
Latest Patents
Allan A Schwartz holds a patent for "Read signal detection in ternary 3PM magnetic recording." This invention focuses on circuitry designed to distinguish values in a read signal magnetically recorded in ternary-3 position modulation. The circuitry effectively detects and equalizes values of 1, 2, and 0 into a singlet, a doublet, and the absence of magnetic flux change. It first determines the position locations of each singlet peak and doublet crossover point to establish proper timing of the output signals. The circuitry then identifies the specific type of signal appearing at the timing points in the read signal sequence. Singlets are recognized by their significantly greater amplitudes in the integrated read signal, while doublets are identified as waveforms with slopes at zero crossovers that correspond in polarity to the previous singlet. This novel detector circuit can accurately identify doublets in a code sequence, even in the presence of a previous singlet, provided that a recording rule is followed that includes the insertion of consecutive ternary 0 symbols into the recorded signal.
Career Highlights
Allan A Schwartz is associated with Sperry Corporation, where he has contributed to various innovative projects. His work has been instrumental in advancing the technology used in magnetic recording systems.
Collaborations
One of his notable collaborators is George V Jacoby, with whom he has worked on various projects to enhance the capabilities of magnetic recording technology.
Conclusion
Allan A Schwartz's contributions to the field of magnetic recording technology demonstrate his innovative spirit and dedication to advancing the industry. His patent reflects a significant step forward in the efficiency of data retrieval processes.