Inventor
Sang-Jung Ra
Inventor
Daejeon, KR
Overview
Patents· 7 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 communication45%
H04NPictorial communication, e.g. television18%
H03GControl of amplification9%
H04BTransmission9%
H04HBroadcast communication9%
H04WWireless communication networks9%
PatentTitleYear
10,425,906Apparatus and method for detecting upstream RF signals based on preamble, and apparatus for cable broadcasting using the same201910,193,687Method for acquiring synchronization, and PHY transmitter and PHY receiver for cable network201910,110,275Frequency offset estimation and compensation method20189,154,293'Method and apparatus for compensating for variable symbol timing using cyclic prefix in non-synchronized OFDM system'20159,059,886'Method for transmitting data using variable guard interval and apparatus thereof'20159,027,071'Method and apparatus for inserting broadcast program by detecting available channel over hybrid fiber coax network or optical cable network'20157,504,884'Automatic gain control apparatus of cable modem, and lock-time acquisition method using the same'2009Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2009–2015Patents assigned to KOREA ELECTRONICS TELECOMM (4)· patent assignee history
2009Based in Jeollanam-do, KR· patent location history
2015–2019Based in Daejeon, KR· patent location history
2018–2019Patents assigned to ELECTRONICS & TELECOMMUNICATIONS RES INST (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KOREA ELECTRONICS TELECOMM | 4 | 2009–2015 |
| ELECTRONICS & TELECOMMUNICATIONS RES INST | 3 | 2018–2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Daejeon, KR | 6 | 2015–2019 |
| Jeollanam-do, KR | 1 | 2009 |