Location History:
- Daejon, KR (2009)
- Daejeon, KR (2006 - 2013)
- Seoul, KR (2012 - 2015)
Company Filing History:
16 out of 11,277 
1 out of 195 
1 out of 129 Years Active: 2006-2015
Title: Innovations of Kyung-Hi Chang
Introduction
Kyung-Hi Chang is a prominent inventor based in Daejeon, South Korea. She has made significant contributions to the field of wireless communication, holding a total of 16 patents. Her work focuses on enhancing the efficiency and performance of cellular systems.
Latest Patents
One of her latest patents is an "Apparatus and method for signal constitution for downlink of OFDMA-based cellular system." This invention discloses an adaptive pilot symbol assignment method that flexibly controls the number of transmit antennas based on each user's moving speed, channel status, or user request. It also includes a sub-carrier allocation method for high-speed mobile users, ensuring proper pilot symbol assignment while considering the traffic volume of ultrahigh-speed mobile users. Another notable patent is the "Adaptive transmission and receiving method and device in wireless communication system with multiple antennas." This invention outlines a method and device for adaptive transmission and reception in a multiple-antenna wireless communication system, optimizing data rates and minimizing power consumption.
Career Highlights
Kyung-Hi Chang has worked with reputable organizations, including the Electronics and Telecommunications Research Institute and Chung Ang University Industry Academic Cooperation. Her experience in these institutions has allowed her to develop innovative solutions in the field of telecommunications.
Collaborations
She has collaborated with notable colleagues such as Kwang-Soon Kim and Sang-Hyun Lee, contributing to various projects and advancements in wireless communication technology.
Conclusion
Kyung-Hi Chang's contributions to the field of wireless communication through her patents and collaborations highlight her innovative spirit and dedication to advancing technology. Her work continues to influence the development of efficient communication systems.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.