Inventor

Hyung-Jin Choi

Inventor

Seoul, KR

Overview

1998–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 44 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Lprimary

H04LTransmission of digital information, e.g. telegraphic communication29%

H04BTransmission15%

H04JMultiplex communication9%

H04WWireless communication networks9%

H04NPictorial communication, e.g. television5%

G02BOptical elements, systems or apparatus4%

G01SRadio direction-finding3%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein2%

H03MCoding2%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use2%

PatentTitleYear

10,728,712Methods and apparatuses for supporting wireless communication of vehicle2020 10,536,924Apparatus and method for positioning terminal in wireless communication system2020 10,397,808Method and apparatus for device-to-device data communication2019 10,368,200Device and method for position measurement in wireless communication system2019 10,111,262Channel structure for discovering terminal in wireless communication system, and power control method and apparatus2018 10,005,260Optically transmissive antimicrobial glass with shielding effect for electromagnetic wave2018 9,924,553'Method and apparatus for measuring link quality in wireless communication system supporting device-to-device communication'2018 9,914,105'Phase-change suspension fluid composition including polyethylene oxide particles and method for manufacturing the same'2018 9,913,093'Apparatus and method for measuring position'2018 9,860,859'Apparatus and method for aligning discovery channel intervals among cells in cellular communication system'2018 9,664,894'Micro optical switch device, image display apparatus including the same, and method of manufacturing the micro optical switch device'2017 9,647,862'Apparatus and method for supporting device to device communication'2017 9,164,278'Micro-optical switching device, image display apparatus including micro-optical switching device, and method of manufacturing micro-optical switching device'2015 9,110,318'Driving device of display apparatus and method of manufacturing the driving device'2015 8,681,903'Method for demodulating received signals and apparatus for performing the same'2014 8,428,197'Enhanced channel estimation for communication system receiver'2013 8,385,488'Inter-cell interference mitigation method using spatial covariance matrix estimation method for inter-cell interference mitigation of MIMO antenna OFDM system'2013 8,379,741'Wireless communication system and method for performing communication in the wireless communication system'2013 8,351,550'Correlation apparatus and method for frequency synchronization in broadband wireless access communication system'2013 8,300,717'Sampling frequency offset estimation apparatus and method of OFDM system'2012 8,275,059'Frequency synchronization apparatus and method in OFDM system'2012 8,184,753'Apparatus and method for OFDM channel equalization'2012 8,130,852'Method for estimating channel in radio communication system and device therefor'2012 8,121,206'Apparatus and method for estimating delay spread of multi-path fading channel in OFDM system'2012 7,792,216'Timing estimator in OQPSK demodulator'2010 7,711,041'Signal-to-interference ratio estimation'2010 7,558,346'Symbol detector based on frequency offset compensation in ZigBee system and symbol detecting method thereof'2009 7,554,902'Preamble design for frequency offset estimation and channel equalization in burst OFDM transmission system'2009 7,539,166'Channel estimator, demodulator, speed estimator and method thereof'2009 7,505,420'Guard section length detecting device and method for orthogonal frequency division multiplexing system receiver'2009 7,321,630'Approximation method for series expansion of input function and system using the same'2008 7,319,660'Device and method for symbol frame synchronization of OFDM transmitter and receiver'2008 7,295,715'Apparatus and method for detecting frequency'2007 7,158,557'Channel estimation apparatus and method'2007 7,035,455'Color temperature conversion apparatus for variably changing color temperature of input image and method thereof'2006 6,964,007'Asymmetric error correction apparatus and method, and clock recovering apparatus for optical reading system employing the same'2005 6,928,048'Guard section length detecting device and method for orthogonal frequency division multiplexing system receiver'2005 6,853,616'Orthogonal frequency division multiplexing receiver where FFT Window position recovery interlocks with sampling clock adjustment and method thereof'2005 6,798,738'FFT window position recovery apparatus and method for OFDM system receiver'2004 6,750,725'Apparatus for detecting phase error by using zero crossing characteristics of input signal, and phase locked loop circuit using the same'2004 6,577,674'Channel compensator for DS-CDMA receiver'2003 6,058,121'Fine FFT window position recovery apparatus of an OFDM system receiver'2000 5,796,756'Survivor memory device in viterbi decoder using trace deletion method'1998 5,751,734'Decoding method and apparatus using trace deletion for Viterbi algorithm'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2020Patents assigned to SAMSUNG ELECTRONICS CO LTD (28)· patent assignee history

1998–2007Based in Suwon-si, KR· patent location history

2000–2020Based in Seoul, KR· patent location history

2009–2012Patents assigned to SAMSUNG ELECTRO MECH (6)· patent assignee history

2012–2014Patents assigned to UNIV SUNGKYUNKWAN FOUND (7)· patent assignee history

2012–2013Patents assigned to CHOI HYUNG JIN (5)· patent assignee history

2014Based in Songpa-gu, KR· patent location history

2015–2017Based in Seongnam-si, KR· patent location history

2018–2020Patents assigned to RESEARCH & BUSINESS FOUND SUNGKYUNKWAN UNIV (8)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SAMSUNG ELECTRONICS CO LTD	28	1998–2020
RESEARCH & BUSINESS FOUND SUNGKYUNKWAN UNIV	8	2018–2020
UNIV SUNGKYUNKWAN FOUND	7	2012–2014
SAMSUNG ELECTRO MECH	6	2009–2012
CHOI HYUNG JINself	5	2012–2013

Locations

Location	Patents	Span
Seoul, KR	33	2000–2020
Suwon-si, KR	7	1998–2007
Seongnam-si, KR	3	2015–2017
Songpa-gu, KR	1	2014