Inventor
Sung-Hyun Hwang
Inventor
Daejeon, KR
Overview
Patents· 45 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 communication32%
H04WWireless communication networks32%
H04BTransmission14%
G11CStatic stores3%
H04JMultiplex communication3%
G06TImage data processing or generation, in general2%
H04NPictorial communication, e.g. television2%
H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation2%
G01RMeasuring electric variables1%
G06FElectric digital data processing1%
PatentTitleYear
10,701,752Device and method for allocating coexistence resource in unlicensed band202010,607,688Memory device and operating method thereof202010,566,340Semiconductor memory device202010,388,381Semiconductor memory device and operating method thereof20199,867,071'Apparatus and method for avoiding collisions between wireless communication systems'20189,867,166'Method of generating pilot pattern for adaptive channel estimation in OFDMA systems, method of transmitting/receiving using the pilot pattern and apparatus thereof'20189,831,995Method and apparatus for generating pilot pattern for MIMO antenna20179,706,370'Method and device for managing backup channels for cognitive radio communication'20179,553,710'Methods and an apparatus for carrier aggregation'20179,532,381'Hidden node detection method and apparatus in wireless communication system'20169,490,855'Method and apparatus for self-directed interference cancellation filter management'20169,467,320'Method and system for performing initial ranging in cognitive radio network'20169,215,661'Transmission power control method and device for cognitive radio device'20159,210,712'Apparatus and method for controlling subcarrier spacing in a wireless communication system'20159,191,963'Carrier aggregation apparatus for efficiently utilizing frequency resource of license band and shareable bands, and operation method thereof'20159,160,432'Cognitive radio base station and communication method thereof in multi-user multiple-input multiple output cognitive radio network system'20159,137,053'Apparatus and method of estimating channel in consideration of residual synchronization offset'20158,995,409'Communication method using a preamble to share characteristic information, method for generating the preamble, and communication system to which the methods are applied'20158,964,640'Hybrid beaconing method'20158,964,886'Method and device for transmitting a preamble in a wireless communication system'20158,861,551'Method of generating pilot pattern for adaptive channel estimation in OFDMA systems, method of transmitting/receiving using the pilot pattern and apparatus thereof'20148,855,144'Method of generating pilot pattern for adaptive channel estimation in OFDMA systems, method of transmitting/receiving using the pilot pattern and apparatus thereof'20148,787,271'Method and device for communication between devices with different transmission coverage'20148,737,498'Secondary transmitter included in cognitive radio communication system and communication method of the secondary transmitter'20148,693,410'Method and apparatus of hybrid burst mapping in OFDMA systems'20148,693,563'Method of transmitting and receiving orthogonal frequency division multiplexing (OFDM) signal using multiple antennas, and transmitter and receiver thereof'20148,682,257'Method and apparatus for detecting heterogeneous communication system'20148,675,594'Method for sensing spectrum and arranging quiet period in cognitive radio system, customer premise equipment, base station and superframe structure using the same'20148,619,699'Channel switching apparatus and method of a base station and channel switching apparatus and method of a terminal based on the cognitive radio system'20138,605,610'Method and apparatus for link adaptive multicast/broadcast transmission and reception'20138,600,418'Relay station for cell information exchange between adjacent BSs over air links in cellular systems'20138,488,526'Network communication method and network device using preamble'20138,477,799'Method for using flexible bandwidth in OFDMA-based cognitive radio system, base station and subscriber station using the same'20138,326,336'Apparatus and method for communication in cognitive radio network'20128,199,216'Apparatus and method for improving image quality of image sensor'20128,031,667'Method for managing multiple frequency assignment using terminal\'s received performance in OFDMA WRAN system'20117,903,691'Method of generating pilot pattern for adaptive channel estimation in OFDMA systems, method of transmitting/receiving using the pilot pattern and apparatus thereof'20117,576,891'Apparatus and method for improving image quality of image sensor'20097,532,692'Wired/wireless communication receiver and method for improving performance of equalizer through multipath delay spread estimation'20097,386,035'Method of compensating for energy loss and eliminating inter-symbol interference and inter-chip interference and rake receiver for WLAN adopting the same'20087,333,579'Robust symbol timing recovery circuit for telephone line modem'20087,305,048'Burst mode receiver and method for stable reception of packet data on telephone line'20077,194,027'Channel equalizing and carrier recovery system for home phoneline networking alliance receiver and method thereof'20077,136,434'Apparatus and method for detecting energy of tone signal'2006D0397376'Magnetic levitation toy'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2015Patents assigned to HWANG SUNG HYUN (9)· patent assignee history
2006–2009Based in Suwon-si, KR· patent location history
2009–2012Based in Chungcheongbuk-do, KR· patent location history
2011–2015Patents assigned to KOREA ELECTRONICS TELECOMM (23)· patent assignee history
2011–2020Based in Daejeon, KR· patent location history
2012–2015Patents assigned to HWANG SUNG-HYUN (13)· patent assignee history
2012–2015Patents assigned to KIM CHANG-JOO (10)· patent assignee history
2012–2015Patents assigned to KO GWANGZEEN (10)· patent assignee history
2016Based in San Jose, CA, US· patent location history
2019–2020Based in Seoul, KR· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KOREA ELECTRONICS TELECOMM | 23 | 2011–2015 |
| HWANG SUNG-HYUNself | 13 | 2012–2015 |
| KIM CHANG-JOO | 10 | 2012–2015 |
| KO GWANGZEEN | 10 | 2012–2015 |
| HWANG SUNG HYUNself | 9 | 1998–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Daejeon, KR | 31 | 2011–2020 |
| Suwon-si, KR | 6 | 2006–2009 |
| Seoul, KR | 3 | 2019–2020 |
| Chungcheongbuk-do, KR | 2 | 2009–2012 |
| San Jose, California, US | 1 | 2016 |