Mehrdad Negahban

Title: The Innovations of Mehrdad Negahban

Introduction

Mehrdad Negahban is a notable inventor based in Irvine, CA. He has made significant contributions to the field of electronics, particularly in the development of advanced hearing aids and integrated circuits for disk drives. With a total of 2 patents, his work showcases a blend of innovation and practicality.

Latest Patents

One of Negahban's latest patents is the "Trimmable Variable Compression Amplifier for Hearing Aid." This invention improves analog hearing aids by incorporating a current source transconductance amplifier as an input stage. The gain defining bias current of the input stage is adjusted upon the application of battery power, allowing for a low input signal gain. This is further refined by two gain regulators that define a compression threshold and ratio, ultimately providing a maximum output ceiling. Additionally, the invention includes a method for trimming the low signal gain when battery power is applied.

Another significant patent is the "Area Integrator Servo Demodulator with On-Chip CMOS Analog-to-Digital." This integrated circuit is designed for disk drives and features a successive-approximation analog-to-digital converter (ADC) along with a two-stage digital-to-analog converter (DAC). The circuit can be implemented in a basic or pure-digital CMOS chip, as it does not require precision analog elements. The first DAC stage operates on the most significant bits, while the second stage handles the least significant bits. This innovative design is suitable for detecting head position information in disk drive servo signals without the need for precision analog components.

Career Highlights

Throughout his career, Mehrdad Negahban has worked with prominent companies such as Mitel Semiconductor Limited and Western Digital Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the electronics sector.

Collaborations

Negahban has collaborated with notable professionals in his field, including Olle Andersson and Jonas Weiland. These partnerships have further enhanced his innovative capabilities and have led to the development of impactful technologies.

Conclusion

In summary, Mehrdad Negahban is a distinguished inventor whose work in electronics has led to significant advancements in hearing aids and disk drive technology. His patents reflect a commitment to innovation and practical solutions in the industry.