Susan Jeanne Walker

Title: Susan Jeanne Walker: Innovator in Filter Technology

Introduction

Susan Jeanne Walker is a notable inventor based in Howell, NJ (US). She has made significant contributions to the field of electronic engineering, particularly in the development of advanced filtering technologies. With a total of 2 patents, her work has had a meaningful impact on the industry.

Latest Patents

One of her latest patents is titled "Method and apparatus for tuning a continuous time filter." This invention involves a tuning circuit designed to generate a digital code for calibrating a capacitor array used in active RC filters. The circuit utilizes a single-slope A/D converter with fixed reference voltages, producing an output value that depends on the RC product of a resistor and capacitor within the converter. A decoder then converts the measured RC product into a digital code, which adjusts the capacitor array to compensate for discrepancies between the measured RC product and the nominal design value.

Another significant patent is the "Offset compensation circuit for integrated logarithmic amplifiers." This circuit addresses the input offset voltage of a logarithmic amplifier by incorporating a digital comparator, a logic circuit, and a digital-to-analog converter (DAC) in a feedback loop. The comparator connects to the output of the logarithmic amplifier, indicating the polarity of the input offset voltage when the amplifier input is set to zero. The logic circuit forms an adjustable digital compensation signal based on the comparator's output, which the DAC then converts into an analog signal to cancel the input offset voltage. This process is iteratively refined until the optimal compensation signal is achieved.

Career Highlights

Susan currently works at Lucent Technologies Inc., where she continues to innovate and develop cutting-edge technologies. Her expertise in electronic engineering has positioned her as a valuable asset to her team and the company.

Collaborations

Throughout her career, Susan has collaborated with talented individuals such as Vittorio Comino and Dima David Shulman. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Susan Jeanne Walker is a distinguished inventor whose work in filter technology has led to significant advancements in electronic engineering. Her patents reflect her commitment to innovation and her ability to solve complex engineering challenges.