Company Filing History:
Years Active: 2020-2025
Title: Xuefeng Zhao: Innovator in Radio Frequency Technology
Introduction
Xuefeng Zhao is a prominent inventor based in Cupertino, CA (US). He has made significant contributions to the field of radio frequency technology, holding a total of 5 patents. His work focuses on enhancing the performance and calibration of radio frequency devices.
Latest Patents
One of Xuefeng Zhao's latest patents is titled "Radio frequency handset calibration based on antenna gain." This innovative radio frequency device comprises antennas, transmitters, power detectors, a memory storing instructions, and an antenna gain lookup table, along with processors. The processors execute instructions that involve directing the transmitters to send transmission signals through the antennas. This process forms a first beamformed signal characterized by a specific beam direction and frequency, utilizing multiple input powers. The instructions also include determining radio frequency integrated circuit (RFIC) gains associated with the transmitters based on the transmission signals, as measured by the power detectors. Furthermore, the instructions entail calculating the antenna gains for the antennas based on the first beam direction and frequency of the first beamformed signal, referencing the antenna gain lookup table. The total gains are then determined based on the RFIC gains and antenna gains, leading to adjustments in the input powers based on the total gains and a back off power signal.
Career Highlights
Xuefeng Zhao is currently employed at Apple Inc., where he continues to innovate and develop advanced technologies in radio frequency applications. His expertise and contributions have positioned him as a key player in the industry.
Collaborations
Xuefeng has collaborated with notable colleagues, including Srinivasa Yasasvy, Sateesh Bhamidipati, and Vineet Nayak. These collaborations have further enhanced the innovative projects he has been involved in.
Conclusion
Xuefeng Zhao's work in radio frequency technology exemplifies his commitment to innovation and excellence. His patents and collaborations reflect his significant impact on the field, making him a noteworthy inventor in the industry.