Liangguo Shen

Title: The Innovative Contributions of Liangguo Shen

Introduction

Liangguo Shen is a prominent inventor based in San Diego, CA. He has made significant contributions to the field of haptic technology, holding a total of 8 patents. His work focuses on enhancing user experience through innovative techniques that improve the functionality of haptic actuators.

Latest Patents

One of Liangguo Shen's latest patents is centered on "Haptics Audible Noise Reduction." This patent proposes innovative techniques to design and generate haptic waveforms that reduce or eliminate audible noises produced by haptic actuators during operation. The techniques involve composing a voltage waveform at the resonant frequency of the actuator, which generates a corresponding control signal. By incorporating a ramp down portion in the voltage waveform, the current flowing within the actuator is gradually reduced before entering a high impedance state, thereby minimizing audible noise. Another notable patent is "Impedance Measurement for a Haptic Load." This patent describes a measurement circuit that drives a haptic load using a first transistor and triggers a comparator when specific voltage conditions are met. This innovative approach enhances the accuracy of impedance measurements in haptic systems.

Career Highlights

Liangguo Shen is currently employed at Qualcomm Incorporated, a leading technology company known for its advancements in telecommunications and semiconductor technology. His work at Qualcomm has allowed him to push the boundaries of haptic technology, contributing to the development of more refined and effective haptic systems.

Collaborations

Liangguo Shen has collaborated with notable colleagues, including Hua Guan and Vincenzo Peluso. These collaborations have fostered a creative environment that encourages innovation and the sharing of ideas, further enhancing the quality of their work in haptic technology.

Conclusion

Liangguo Shen's contributions to haptic technology through his patents and work at Qualcomm Incorporated highlight his role as a leading inventor in the field. His innovative techniques not only improve the functionality of haptic actuators but also enhance user experience across various applications.