Company Filing History:
Years Active: 2012-2013
Title: Hee Choul Lee: Innovator in MIMO Signal Processing
Introduction
Hee Choul Lee is a notable inventor based in San Jose, CA, who has made significant contributions to the field of signal processing. With a focus on MIMO (Multiple Input Multiple Output) technology, Lee has developed innovative techniques that enhance the performance of communication systems. He holds 2 patents that reflect his expertise and dedication to advancing technology.
Latest Patents
One of Lee's latest patents is titled "Delta writing scheme for MIMO signal paths." This invention discloses techniques for writing to registers associated with MIMO signal paths. In this embodiment, a controller writes a common value to all registers corresponding to the same operational parameter for all signal paths in the MIMO transmitter or receiver. The controller then updates the register in any signal path whose operational parameter differs from the common value, either by accumulating a value to the existing register value or by replacing it with a different value.
Another significant patent by Lee is "Direct current (DC) offset correction using analog-to-digital conversion." This invention provides techniques for reducing or eliminating DC offset in transmitters. The apparatus for DC offset reduction includes a converter, a digital engine, and a plurality of programmable current supplies. The converter provides digital representations of a plurality of DC currents associated with differential signal legs. The digital engine produces instructions for generating compensating currents based on comparisons between each digital representation and a calibration current. The programmable current supplies are configured to inject these compensating currents into the differential signal legs, allowing for one-shot DC offset correction.
Career Highlights
Hee Choul Lee is currently employed at Qualcomm Incorporated, a leading company in wireless technology and telecommunications. His work at Qualcomm has allowed him to contribute to cutting-edge advancements in MIMO technology and signal processing.
Collaborations
Lee has collaborated with several talented individuals in his field, including Bahman Ahrari and Jin-Su Ko. These collaborations have fostered an environment of innovation and creativity, leading to the development of impactful technologies.
Conclusion
Hee Choul Lee's contributions to MIMO signal processing through his patents demonstrate his commitment to innovation in the field. His work at Qualcomm and collaborations with other experts highlight the importance of teamwork in advancing technology. Lee's inventions are paving the way for improved communication systems and signal processing techniques.