Yajun Hu

Title: Yajun Hu: Innovator in Power Line Carrier Communication Technology

Introduction:

Yajun Hu, an accomplished inventor based in Qingdao, China, has made significant contributions to the field of power line communication technology. With a total of two patents to his name, Hu's work primarily focuses on enhancing communication methods through innovative circuit designs and micro-controller applications.

Latest Patents:

Yajun Hu's latest patents include a comprehensive system for power line carrier communication that encompasses a receiving circuit, a transmitting circuit, a micro-controller, and an associated method. The receiving circuit is designed with an analog amplifier, a receiving filter, an analog-to-digital converter, a digital mixer, a digital filter, and a digital demodulator, all connected in succession. Similarly, the transmitting circuit incorporates a digital modulator, a gain controller, a digital-to-analog converter, a transmitting filter, and a transmitting amplifier. The micro-controller integrates a central processor alongside either circuit, allowing for versatile communication capabilities. This innovative method resolves the limitations of conventional systems, enabling the processing of power line carrier signals across multiple modulation and demodulation modes.

In addition, another patent focuses on a micro-controller, processing method, and device tailored for power line carrier signal reception. This framework utilizes an analog mixer, filters, and converters to process incoming signals, ensuring effective demodulation and retrieval of baseband data. The innovative technique features two-stage frequency mixing, allowing for the modulation of carrier signals to a fixed frequency, thereby making the demodulation of signals with varying frequencies feasible.

Career Highlights:

Throughout his career, Yajun Hu has been associated with notable firms such as Qingdao Eastsoft Communication Technology Co., Ltd. and Shanghai Haier Integrated Circuit Co., Ltd. His experience in these organizations has been instrumental in driving his innovative concepts into practical applications.

Collaborations:

Yajun Hu has collaborated with esteemed colleagues in the industry, including Song Pan and Jian Cui. These partnerships have likely contributed to the advancement and realization of his innovative projects and patents.

Conclusion:

Yajun Hu's contributions to power line carrier communication technology demonstrate his commitment to innovation and advancement within the field. With his patented designs and methods, he continues to enhance the functionality and versatility of communication systems, paving the way for improved technological applications in the future.