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For the Inventor, By the Inventor

Daejeon-si, South Korea

Kwang-Joon Kim

USPTO Granted Patents = 17 

Average Co-Inventor Count = 3.5

ph-index = 5

Forward Citations = 90(Granted Patents)


Location History:

  • Yusong-ku, KR (1998)
  • Taejon, KR (2003 - 2005)
  • Daejeon, KR (2000 - 2012)
  • Daejeon-si, KR (2012 - 2014)

Company Filing History:

goldMedal17 out of 11,315 
 
Electronics and Telecommunications Research Institute
 patents

Years Active: 1998-2014

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17 patents (USPTO):Explore Patents
1. 8681885 - OFDM receiver and method for compensating for I/Q imbalance (2014-03-25),
2. 8565620 - Apparatus for receiving optical signal and method of controlling phase offset for differential quadrature phase shift keying (2013-10-22),
3. 8437636 - Methods of transmitting and receiving multicast or broadcast frame in OLT and ONU for WDM-PON, WDM-PON system, and OLT for WDM-PON (2013-05-07),
4. 8406625 - Apparatus and method for cross-connecting optical path in wavelength division multiplexing system (2013-03-26),
5. 8260154 - Digital equalization apparatus and method for coherent optical receiver (2012-09-04),
6. 8254291 - Ethernet device and lane operating method (2012-08-28),
7. 8224190 - Channel assignment method and apparatus for wavelength-division-multiplexed transmission system (2012-07-17),
8. 8116623 - Multi-ring network operating method and system (2012-02-14),
9. 8036527 - Apparatus and method for protection switching of optical channel (2011-10-11),
10. 7676155 - Dynamic wavelength allocation device using 3R wavelength converter having limited wavelength conversion range and method thereof (2010-03-09),
11. 7394983 - Method and apparatus for detecting optical switch fault by monitoring optical output transitions (2008-07-01),
12. 6928243 - Optical performance monitoring apparatus for a WDM optical communication system (2005-08-09),
13. 6570698 - Apparatus and method for modulating optical intensity with amplitude noise suppressed by using linear optical modulator (2003-05-27),
14. 6529319 - Automatic gain-controlled optical fiber amplifier (2003-03-04),
15. 6060704 - Photodetector for simultaneous recognition of multiple wavelengths, and (2000-05-09),

Title: Kwang-Joon Kim: Innovator in Telecommunications

Introduction

Kwang-Joon Kim is a prominent inventor based in Daejeon-si, South Korea. He has made significant contributions to the field of telecommunications, holding a total of 17 patents. His work focuses on enhancing communication technologies, particularly in the areas of optical signal processing and OFDM systems.

Latest Patents

One of his latest patents is an OFDM receiver and method for compensating for I/Q imbalance. This invention provides an OFDM receiver that includes an I/Q demodulator, which demodulates a received signal into baseband in-phase (I) and quadrature (Q) channel signals. The I/Q imbalance compensator addresses the imbalance between these signals in the time domain, effectively solving I/Q imbalance issues and improving the performance of OFDM communication devices.

Another notable patent is for an apparatus for receiving optical signals and a method of controlling phase offset for differential quadrature phase shift keying (DQPSK). This invention involves receiving an original optical signal modulated in DQPSK and generating a control signal based on the interference between the original and delayed optical signals. This precise control of the phase offset optimizes the transfer characteristics of an optical delay interferometer.

Career Highlights

Kwang-Joon Kim is affiliated with the Electronics and Telecommunications Research Institute, where he continues to innovate and develop new technologies. His work has significantly impacted the telecommunications industry, particularly in improving signal processing techniques.

Collaborations

He has collaborated with notable colleagues, including Hwan-Seok Chung and Sun-Hyok Chang, contributing to various advancements in telecommunications technology.

Conclusion

Kwang-Joon Kim's contributions to telecommunications through his innovative patents demonstrate his expertise and commitment to advancing communication technologies. His work continues to influence the field and pave the way for future developments.

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