Company Filing History:
3 out of 73 
2 out of 368 
Years Active: 2022-2025
Title: The Innovations of David G Mitchell
Introduction
David G Mitchell is a notable inventor based in Las Cruces, NM (US). He has made significant contributions to the field of low-density parity-check decoders, holding a total of three patents. His work focuses on enhancing the performance of these decoders, which are crucial in various communication systems.
Latest Patents
One of his latest patents is a threshold-based min-sum algorithm designed to lower the error floors of quantized low-density parity-check decoders. This modified version of the min-sum algorithm (MSA) aims to improve the error floor performance of quantized LDPC decoders. The invention introduces a threshold attenuated min-sum algorithm (TAMSA) and/or a threshold offset min-sum algorithm (TOMSA). These algorithms selectively attenuate or offset a check node log-likelihood ratio (LLR) when the check node receives any variable node LLR with a magnitude below a predetermined threshold. This allows the check node LLR to reach the maximum quantizer level if all variable node LLRs received have magnitudes greater than the threshold. The embodiments of this invention can yield desirable results even without knowledge of the location, type, or multiplicity of such objects and can be implemented with only minor modifications to existing decoder hardware.
Career Highlights
David G Mitchell has worked with several organizations, including Arrowhead Center, Inc. and the University of Notre Dame Du Lac. His experience in these institutions has contributed to his expertise in the field of communications technology.
Collaborations
Throughout his career, David has collaborated with notable individuals such as Homayoon Hatami and Daniel Costello. These collaborations have further enriched his work and innovations in the field.
Conclusion
David G Mitchell's contributions to the field of low-density parity-check decoders through his innovative patents demonstrate his commitment to advancing technology. His work continues to influence the development of more efficient communication systems.