Li Liu

Title: Innovations by Inventor Li Liu

Introduction

Li Liu is a notable inventor based in Cortland, NY (US). She has made significant contributions to the field of imaging technology, holding a total of 3 patents. Her work focuses on enhancing the performance and capabilities of image sensors.

Latest Patents

Li Liu's latest patents include an innovative image sensor ADC and CDS per column with oversampling. This solid-state imager converts analog pixel values to digital form on an arrayed per-column basis. An N-bit counter supplies an N-bit DAC to produce an analog ramp output that varies according to the contents of the counter. A latch/counter or equivalent is associated with each respective column, and a clock supplies clock signals to the counter elements. When the analog ramp equals the pixel value for that column, the latch/counter latches the value. The black level can be pre-set in the latch/counter or subtracted separately to reduce fixed pattern noise. The pixels can be oversampled multiple times, such as n=16, to reduce thermal noise. Additionally, two or more pixels sharing a common sense node may be binned together, and pixels with different integration times may be combined to enhance the output signal's dynamic range.

Another significant patent is her sub-pixel array optical sensor. This innovation improves the dynamic range of captured images by using sub-pixel arrays to capture light at different exposures, generating color pixel outputs for an image in a single frame. Each sub-pixel array can include multiple sub-pixels, including red (R), green (G), blue (B), and clear sub-pixels. The inclusion of clear sub-pixels allows for better low-light scene capture. Each sub-pixel array can produce a color pixel output that combines the outputs of the sub-pixels, with the potential for different exposure times to further enhance dynamic range.

Career Highlights

Li Liu is currently employed at Panavision Imaging LLC, where she continues to innovate in the field of imaging technology. Her work has garnered attention for its potential applications in various industries, including photography and videography.

Collaborations

Li Liu collaborates with talented individuals such as Jeffrey Jon Zarnowski and Ketan Vrajlal Karia, contributing to a dynamic and innovative work environment.

Conclusion

Li Liu's contributions to imaging technology through her patents demonstrate her commitment