Company Filing History:

5 out of 2,607

Korea Advanced Institute of Science and Technology

patents

1 out of 131,214

Samsung Electronics Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 2010-2012

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5 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8160185 - Apparatus for synchronizing OFDM signal using open-loop frequency synchronization method and frequency offset estimation scheme using the apparatus (2012-04-17),

2. 8089990 - Apparatus and method for preventing data read error for orthogonal frequency division multiplexing symbol demodulation (2012-01-03),

3. 8069280 - Direct memory access apparatus for sending data stored in memory separately from an operation of a main processor and direct memory access method using the same (2011-11-29),

4. 8040964 - Apparatus for receiving T-DMB signal and method of operating the same (2011-10-18),

5. 7853262 - Method and system for allocating resources in a communication system (2010-12-14),

Title: Hwang-Soo Lee: Innovator in OFDM Signal Synchronization

Introduction

Hwang-Soo Lee is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of communication technology, particularly in the area of Orthogonal Frequency Division Multiplexing (OFDM) signal synchronization. With a total of 5 patents to his name, Lee's work has had a substantial impact on the efficiency and reliability of communication systems.

Latest Patents

One of Hwang-Soo Lee's latest patents is an "Apparatus for synchronizing OFDM signal using open-loop frequency synchronization method and frequency offset estimation scheme using the apparatus." This invention provides a method for estimating and compensating for various types of frequency errors in frequency modulation broadcasting and communication systems. The apparatus includes components such as a time offset estimator, a time offset compensator, and a frequency offset controller, which work together to address frequency offsets caused by differences in carrier frequency, mobile environments, and temperature characteristics of local oscillators.

Another notable patent is the "Apparatus and method for preventing data read error for orthogonal frequency division multiplexing symbol demodulation." This invention focuses on estimating average time synchronization offsets and controlling the reading of data frames to prevent erroneous read errors. By utilizing a ring buffer construction, the method enhances the receiving performance of OFDM systems.

Career Highlights

Hwang-Soo Lee has worked with esteemed organizations such as the Korea Advanced Institute of Science and Technology and Samsung Electronics Co., Ltd. His experience in these institutions has allowed him to develop innovative solutions that address critical challenges in communication technology.

Collaborations

Throughout his career, Lee has collaborated with notable colleagues, including Byung-Jik Keum and Moo-Hong Lee. These partnerships have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Hwang-Soo Lee is a distinguished inventor whose work in OFDM signal synchronization has paved the way for advancements in communication systems. His innovative patents and collaborations reflect his commitment to enhancing technology in this vital field.

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