Qing Liu

Title: Innovations by Qing Liu

Introduction

Qing Liu is an accomplished inventor based in Mountain View, CA (US). He has made significant contributions to the field of technology, particularly in the development of innovative electronic devices. With a total of 3 patents to his name, Liu continues to push the boundaries of what is possible in modern technology.

Latest Patents

One of Liu's latest patents is for adjustable lens systems. These eyeglasses may include one or more lenses and control circuitry that adjusts the optical power of the lenses. The control circuitry is designed to determine a user's prescription and accommodation range during a vision characterization process. This process involves adjusting the optical power of the lens until the user indicates that an object viewed through the lens is in focus. A distance sensor measures the distance to the in-focus object, allowing the control circuitry to calculate the user's prescription based on the optical power of the lens and the distance to the in-focus object. The system can adjust the optical power automatically or in response to user input, enhancing the user's visual experience.

Another notable patent by Liu involves battery impedance measurement. This innovation pertains to an electronic device that includes a battery and a battery charger configured to receive power from an external source. The battery charger controller is designed to control the charger, supplying a first AC signal as part of the charging current or voltage. It measures a second AC signal associated with the first and determines the impedance of the battery at a frequency of interest. This technology can also include a variable load that supplies a first AC signal as part of the discharging current or voltage of the battery.

Career Highlights

Qing Liu is currently employed at Apple Inc., where he continues to innovate and develop cutting-edge technologies. His work has significantly impacted the way electronic devices function, particularly in enhancing user experience through advanced optical and battery technologies.

Collaborations

Liu has collaborated with notable coworkers, including Eric G Smith and Miikka M Kangas, who contribute to the innovative environment at Apple Inc. Their combined expertise fosters a culture of creativity and technological advancement.

Conclusion

Qing Liu's contributions to technology through his patents and work at Apple Inc. highlight his role as a leading inventor in the field. His innovative solutions in adjustable lens systems and battery impedance measurement demonstrate his commitment to enhancing user experience and advancing technology.