Fanjiong Zhang

Title: Fanjiong Zhang: Innovator in Loudspeaker Technology

Introduction

Fanjiong Zhang is a notable inventor based in Shanghai, China. He has made significant contributions to the field of loudspeaker technology, holding 2 patents that focus on sound reproduction and enclosure leakage detection.

Latest Patents

Zhang's latest patents include a method of controlling sound reproduction of enclosure mounted loudspeakers. This method involves applying an audio signal to a voice coil to produce sound, detecting the impedance or admittance of the loudspeaker, and determining its fundamental resonance frequency. By comparing this frequency with a nominal value, the method can detect changes in the loudspeaker's operating conditions and adjust the audio signal accordingly. Another patent focuses on detecting enclosure leakage in electrodynamic loudspeakers. This method applies an audio signal to the voice coil and measures the resulting current and voltage to determine the loudspeaker's impedance. By comparing the fundamental resonance frequency with a nominal frequency, it can identify acoustic leakage in the enclosure.

Career Highlights

Fanjiong Zhang has worked with reputable companies such as Analog Devices and Analog Devices Global Unlimited Company. His experience in these organizations has contributed to his expertise in audio technology and innovation.

Collaborations

Zhang has collaborated with notable coworkers, including Yang Pan and Kim Spetzler Berthelsen. These partnerships have likely enhanced his work and led to further advancements in his field.

Conclusion

Fanjiong Zhang is a distinguished inventor whose work in loudspeaker technology has led to innovative methods for sound reproduction and leakage detection. His contributions continue to influence the audio industry and improve sound quality for users worldwide.