Company Filing History:
Years Active: 2015-2023
Title: Innovations of Inventor Qi Cai
Introduction
Qi Cai is an accomplished inventor based in Austin, TX. He has made significant contributions to the field of electronics, particularly in amplifier circuitry and microphone technology. With a total of 3 patents to his name, Qi Cai continues to push the boundaries of innovation.
Latest Patents
One of Qi Cai's latest patents is for Class D amplifier circuitry. This invention comprises input buffer circuitry that receives a first digital input signal modulated according to a first modulation scheme. The analog modulator circuitry generates an analog modulated signal based on an output from the input buffer circuitry. Additionally, quantizer circuitry generates an output signal modulated according to a second modulation scheme, allowing for a greater number of discrete signal levels than the input signal.
Another notable patent is the microphone bias apparatus and method. This invention includes a sensing circuit that actively senses a local ground reference for each microphone. An intermediate stage provides a constant non-local reference voltage, which is used to generate a local microphone bias voltage. This innovative approach allows for independent control of the microphone bias voltage, enhancing the performance of multiple microphones.
Career Highlights
Qi Cai has worked with prominent companies in the technology sector, including Cirrus Logic Inc. and Silicon Laboratories Inc. His experience in these organizations has contributed to his expertise in developing cutting-edge electronic solutions.
Collaborations
Throughout his career, Qi Cai has collaborated with talented individuals such as Alan F. Hendrickson and Alessandro Piovaccari. These partnerships have fostered a creative environment that has led to innovative advancements in their respective fields.
Conclusion
In summary, Qi Cai is a notable inventor whose work in amplifier circuitry and microphone technology has made a significant impact. His patents reflect his commitment to innovation and excellence in the electronics industry.