Location History:
- Cambridge, MA (US) (2008)
- North Potomac, MD (US) (2009 - 2014)
Company Filing History:
5 out of 6 
2 out of 1,631 
Years Active: 2008-2014
Title: Innovations and Contributions of Inventor Juntan Zhang
Introduction
Juntan Zhang, an accomplished inventor based in North Potomac, MD, has made significant contributions to the field of digital communications through his innovative patents. With a total of seven patents to his name, Zhang has focused on advancing technologies that enhance video broadcasting and digital signal processing.
Latest Patents
Juntan Zhang's latest innovations include two notable patents. The first is a family of low-density parity-check (LDPC) codes specifically designed for video broadcasting applications. These codes feature quasi-cyclic structures that ease hardware implementation while providing optimal check/bit degree distributions, resulting in impressive frame error rate performance of less than 10. The second patent pertains to a bit mapping scheme for an LDPC coded 32APSK system. This digital communication system integrates a transmitter and receiver using a 32APSK system with forward error correction (FEC) coding. The signal in this system is enhanced through gray mapping, where the bits are organized based on the log-likelihood ratio values from the communications channel.
Career Highlights
Throughout his career, Juntan Zhang has worked for prominent companies such as Availink, Inc. and Mitsubishi Electric Research Laboratories, Inc. His work in these organizations has bolstered his expertise in developing solutions that cater to complex communication challenges.
Collaborations
Zhang has collaborated with fellow professionals in the field, including Fengwen Sun and Ming Yang. These partnerships have undoubtedly contributed to the refinement and implementation of his innovative ideas, reinforcing the importance of teamwork in the development of cutting-edge technologies.
Conclusion
Juntan Zhang's contributions to digital communications through his patents exemplify his role as a leading innovator in the field. His work not only enhances current technologies but also paves the way for future advancements in video broadcasting and digital signal processing. Zhang's legacy is one of creativity, collaboration, and a relentless pursuit of innovation.