IDiyas

For the Inventor, By the Inventor

Hyde Park, NY, United States of America

James L Walsh

USPTO Granted Patents = 16

Average Co-Inventor Count = 2.8

ph-index = 10

Forward Citations = 241(Granted Patents)


Company Filing History:

goldMedal16 out of 164,108 
 
International Business Machines Corporation
 patents

Years Active: 1979-1994

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16 patents (USPTO):
1. 5300827 - Noise immune NTL logic network (1994-04-05),
2. 4806785 - Half current switch with feedback (1989-02-21),
3. 4427989 - High density memory cell (1984-01-24),
4. 4389281 - Method of planarizing silicon dioxide in semiconductor devices (1983-06-21),
5. 4308469 - Unity gain emitter follower bridge circuit (1981-12-29),
6. 4289978 - Complementary transistor inverting emitter follower circuit (1981-09-15),
7. 4287435 - Complementary transistor inverting emitter follower circuit (1981-09-01),
8. 4286179 - Push pull switch utilizing two current switch circuits (1981-08-25),
9. 4283640 - All-NPN transistor driver and logic circuit (1981-08-11),
10. 4252582 - Self aligned method for making bipolar transistor having minimum base to (1981-02-24),
11. 4252581 - Selective epitaxy method for making filamentary pedestal transistor (1981-02-24),
12. 4236294 - High performance bipolar device and method for making same (1980-12-02),
13. 4228369 - Integrated circuit interconnection structure having precision (1980-10-14),
14. 4214315 - Method for fabricating vertical NPN and PNP structures and the resulting (1980-07-22),
15. 4160991 - High performance bipolar device and method for making same (1979-07-10),

Title: **James L. Walsh: A Pioneer in Noise Immune Logic Networks**

Introduction

James L. Walsh, an innovative inventor based in Hyde Park, NY, has secured an impressive portfolio of 16 patents throughout his career. His contributions to the field of technology, particularly in logic networks, showcase his ability to blend theoretical knowledge with practical applications.

Latest Patents

One of Walsh's most notable inventions is the "Noise Immune NTL Logic Network." This invention introduces an NTL (Non-Threshold Logic) NOR logic circuit that achieves a small signal swing. This is accomplished by establishing a pseudo threshold level using a low voltage power supply and a series of NPN bipolar devices, resulting in a circuit that is highly immune to noise while maintaining high DC gain and excellent AC noise tolerance.

Another significant patent of his is the "Half Current Switch with Feedback." This design includes at least one input transistor and features a load resistance connected between voltage references. The constant-current resistance and feedback means work together to manage the current through the input transistor effectively. This design not only optimizes current control but also prevents oscillations in various circuit configurations, demonstrating Walsh's innovative approach to improving electronic devices.

Career Highlights

James L. Walsh is currently associated with the International Business Machines Corporation (IBM), a leading pioneer in the tech industry. His work at IBM has allowed him to explore new frontiers in logic design and circuit functionalities, contributing significantly to technological advancements.

Collaborations

Throughout his career, Walsh has collaborated with talented individuals such as Narasipur G. Anantha and Harsaran S. Bhatia. These collaborations have enriched his research and innovation pursuits, fostering a dynamic environment for developing cutting-edge solutions in the electronics domain.

Conclusion

James L. Walsh's impressive portfolio and innovative spirit reflect his commitment to advancing technology. His latest patents, including the Noise Immune NTL Logic Network and Half Current Switch with Feedback, demonstrate his significant contributions to the field, marking him as a key figure in the landscape of modern electronics.

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