Inventor

Ho Sook Lee

Inventor

Daejeon, KR

Overview

1990–2019

Patent span

Electricity

Primary field (CPC H)

Patents· 12 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 communication36%

H04BTransmission20%

H04NPictorial communication, e.g. television16%

H04QSelecting12%

G06NComputing arrangements based on specific computational models8%

G06FElectric digital data processing4%

H04WWireless communication networks4%

PatentTitleYear

10,425,906Apparatus and method for detecting upstream RF signals based on preamble, and apparatus for cable broadcasting using the same2019 9,167,309'Method and system for transmitting broadcast and data stream and method and apparatus for converting broadcast and data stream in HFC-based cable network'2015 8,799,497'Headend system based on IP network, method of operating the headend system, and QAM pre-processor'2014 8,743,897'Method and apparatus of multicast service flow processing for headend cable modem'2014 8,472,442'Method and apparatus of downstream service flows classification for headend cable modem'2013 7,974,283'Method and apparatus of multicast service flow processing for headend cable modem'2011 7,912,050'Method for classifying downstream packet in cable modem termination system at head-end supporting channel bonding mode, and cable modem termination system'2011 7,502,328'Method of monitoring link performance and diagnosing active link state in Ethernet passive optical network'2009 7,443,861'Method of controlling upstream data transmission in ethernet PON and apparatus thereof'2008 7,301,970'Apparatus for executing multi-point control protocol in Ethernet passive optical network'2007 4,956,791'Merging pattern-matching networks including retes'1990 4,951,225'Updating pattern-matching networks'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to IBM (2)· patent assignee history

1990Based in Mount Kisco, NY, US· patent location history

2007–2015Patents assigned to KOREA ELECTRONICS TELECOMM (9)· patent assignee history

2007–2008Based in Jeonju, KR· patent location history

2009–2019Based in Daejeon, KR· patent location history

2013–2014Patents assigned to LEE HO-SOOK (3)· patent assignee history

2013–2014Patents assigned to KWON O HYUNG (2)· patent assignee history

2013–2014Patents assigned to LEE SOO IN (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KOREA ELECTRONICS TELECOMM	9	2007–2015
LEE HO-SOOKself	3	2013–2014
IBM	2	1990
KWON O HYUNG	2	2013–2014
LEE SOO IN	2	2013–2014

Locations

Location	Patents	Span
Daejeon, KR	8	2009–2019
Jeonju, KR	2	2007–2008
Mount Kisco, New York, US	2	1990