Jeffrey Chih-Jei Cheng

Title: **Innovations by Jeffrey Chih-Jei Cheng: A Pioneer in Mobile Technology**

Introduction

Jeffrey Chih-Jei Cheng is an inventive force in the realm of mobile technology, residing in Santa Clara, California. With a remarkable patent to his name, Cheng has demonstrated his commitment to advancing mobile communication systems.

Latest Patents

Cheng holds a notable patent for a “Mobile phone with maximum output power calibration.” This invention involves a mobile phone equipped with a radio frequency (RF) chip that transceives RF signals via a front-end circuit. It features a power detector that measures the output power from a power amplifier and converts that power into voltage for transmission to a central processing unit (CPU). A base station tester also plays a crucial role by measuring the output power of the mobile phone in test mode. The device includes a microwave chamber to assess the power radiated by the antenna during normal operation. This technology also implements a high voltage circuit that continually provides a high voltage signal. Furthermore, a detection circuit monitors the connection status of the base station tester and outputs the voltage signal to the CPU, allowing the CPU to determine the operating mode of the mobile phone based on this feedback.

Career Highlights

Jeffrey Cheng is affiliated with Hon Hai Precision Industry Co., Ltd., a global leader in electronics and technology. His contribution to the company showcases his expertise and dedication to innovation in mobile technology.

Collaborations

During his career, Cheng has collaborated closely with talented colleagues such as Chih-Yuan Huang and Jin-Tsang Jean. Together, they have worked on various aspects of mobile technology, pushing the boundaries of what is possible in the industry.

Conclusion

Jeffrey Chih-Jei Cheng stands out as an inventive mind in the technology sector, particularly in mobile communication. His patent on the calibration of maximum output power in mobile phones reflects his significant contributions to enhancing mobile performance and reliability. Cheng's journey in innovation is sure to inspire future generations of inventors in the field.