Sen-Jung Wei

Title: Innovations of Sen-Jung Wei

Introduction

Sen-Jung Wei is a notable inventor based in Hyattsville, MD (US). He holds a total of 3 patents that showcase his contributions to the field of electronics and fuzzy logic systems. His work primarily focuses on utilizing resonant tunneling diodes to enhance various technological applications.

Latest Patents

One of his latest patents is titled "Fuzzy membership function generator using resonant tunneling diodes." This invention leverages the folding V-I characteristic of a resonant tunneling diode (RTD) to generate multiple membership functions for each antecedent. The triangular shape of the RTD's folding characteristic corresponds to popular membership functions commonly in use. By adjusting the amount of overlap of adjacent membership functions through the addition or subtraction of a DC current, the implementation of fuzzifiers becomes simpler. Additionally, a time-varying membership function can be generated by sweeping the RTD with a voltage ramp, which can be utilized in the defuzzifier to obtain a crisp output.

Another significant patent is the "Self-latching analog-to-digital converter using resonant tunneling diodes." In this invention, a pair of n-peaked resonant tunneling diodes with series resistance are connected in series across a supply voltage to form a digitizer. This configuration results in 2n+1 stable operating points, with n high current operating points and n+1 low current operating points, corresponding to '1' and '0' logic levels. For an n-bit analog-to-digital converter, the analog input voltage is divided into n binary-weighted fractions and applied to n digitizers, which latch the divided voltages into binary currents serving as digital output.

Career Highlights

Sen-Jung Wei has worked with the University System of Maryland, contributing to various research and development projects. His expertise in resonant tunneling diodes has positioned him as a valuable asset in the field of electronics.

Collaborations

Some of his notable coworkers include Hung C Lin and Hao Tang, who have collaborated with him on various projects.

Conclusion

Sen-Jung Wei's innovative patents and contributions to the field of electronics highlight his significant role as an inventor. His work continues to influence advancements in fuzzy logic systems and analog-to-digital conversion technologies.