James Ernest Malmberg

Title: Innovations of James Ernest Malmberg

Introduction

James Ernest Malmberg is a notable inventor based in Tucson, AZ. He has made significant contributions to the field of integrated circuits and circuit testing. With a total of 6 patents to his name, Malmberg's work has had a considerable impact on technology.

Latest Patents

One of his latest patents is an innovative bypass circuit for circuit testing and modification. This integrated circuit module is designed with bypass switches in critical places to route signals around specific circuit blocks, such as an automatic gain control (AGC) system and an anti-aliasing filter. If there are significant problems with either block, it can be bypassed, allowing tests of the remaining circuits. This design reduces the risk of needing a third pass after known problems are fixed in the second pass. Additionally, the bypass circuits are useful during module production tests and for diagnostics in the final product.

Another notable patent is the write head current damping with dynamic coupling. This write head circuit features improved transient and steady-state response. The circuit includes a dynamically coupled damping circuit that is connected to the write head during transient periods of a write signal, significantly reducing or eliminating overshoot generated by a write head cable. During steady-state or data writing periods, the damping circuit is decoupled from the write head to prevent unnecessary loading. In preferred embodiments, the damping circuit includes a resistor in series with a capacitor, coupled in parallel to the write head. The resistor effectively reduces the overshoot of a write signal supplied to the write head, while the capacitor decouples the resistor during steady-state or data write periods.

Career Highlights

James Ernest Malmberg is currently employed at International Business Machines Corporation, commonly known as IBM. His work at IBM has allowed him to develop and refine his innovative ideas in circuit design and testing.

Collaborations

Throughout his career, Malmberg has collaborated with notable coworkers, including Larry LeeRoy Tretter and James A Bailey. These collaborations have contributed to the advancement of technology in their respective fields.

Conclusion

James Ernest Malmberg's contributions to the field of integrated circuits and circuit testing are noteworthy. His innovative patents demonstrate his commitment to improving technology and enhancing circuit performance. His work continues to influence the industry and inspire future innovations.