LexDanaLexDanabeta
Inventor

Cheol Sig Pyo

Inventor
Daejeon, KR

Overview

130→
Patents
1996–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 130 as inventor

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

H04Wprimary
H04WWireless communication networks20%
H04LTransmission of digital information, e.g. telegraphic communication17%
G06KGraphical data reading13%
H04BTransmission10%
H01QAntennas, i.e. radio aerials9%
Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use7%
G06FElectric digital data processing5%
G01SRadio direction-finding3%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes2%
G08BSignalling systems, e.g. personal calling systems2%
PatentTitleYear
11,070,488System and method to control a cross domain workflow based on a hierarchical engine framework202111,036,539Workflow engine framework202110,833,888IoT device plug-in method and device in data analysis-based automation systems202010,791,155Infrastructure apparatus and method of providing collaboration between thing devices202010,609,746Method and apparatus for communication between peer devices using cyclic-superframe202010,565,699Apparatus and method for detecting anomaly in plant pipe using multiple meta-learning202010,499,405Method for allocating resources in wireless LAN system and wireless LAN system201910,136,424Extended DSME MAC for low power utility monitoring service201810,070,448Method for allocating resources in wireless LAN system and wireless LAN system20189,742,062'Small switchable directional control antenna'20179,693,362'Method for allocating resources in wireless LAN system and wireless LAN system'20179,647,346'Omnidirectional antenna'20179,418,259'Tag transmission apparatus and signal transmitting method thereof'20169,408,084'Control method for radiation beam direction of wireless transmission device'20169,355,286'Passive radio frequency identification (RFID) reader, passive RFID tag, and transmitting and receiving methods using extended pulse-interval encoding (PIE)'20169,300,433'Apparatus and method for encoding constant amplitude in code division multiplexing communication system'20169,294,246'Wireless communication device using common control channel and wireless communication method using the same'20169,256,771'System for simultaneously identifying massive RFID tags using HF band'20169,241,319'Method and apparatus for processing packet in multi-channel wireless network'20169,225,781'Apparatus and method for generating virtual sensor in sensor network'20159,130,262'Direction control antenna and method of controlling the same'20159,117,127'Radio frequency switch and method for controlling the same, and radio frequency identification smart shelf system'20159,098,791'Tag integrated circuit module apparatus and method of fabricating tag integrated circuit module apparatus'20159,054,904'Receiving apparatus and method for RFID reader'20159,054,881'Radio frequency identification (RFID) tag and interrogator for supporting normal mode and secure mode, and operation method thereof'20159,033,233'Reader antenna and RFID electronic shelf including the same'20159,030,217'Semiconductor wafer and method for auto-calibrating integrated circuit chips using PLL at wafer level'20159,031,074'Method and apparatus for packet call setup'20158,989,211'Apparatus and method for managing channel resource'20158,967,457'Total history management system and method using radio frequency identification (RFID) tag and barcode'20158,890,658'RFID system and communication method thereof'20148,868,017'Rectifier, received signal strength indicator, and receiver'20148,848,584'Time synchronization and routing method in wireless sensor network, and apparatus for enabling the method'20148,824,345'Wake-up apparatus and wake-up method for low power sensor node'20148,791,857'System and method for indoor location tracking using pseudo GPS signal transmitter'20148,737,250'Apparatus and method for tracking position of fixed node'20148,731,020'Constant amplitude decoding apparatus and method for multiplexed direct-sequence spread communication system'20148,653,946'Passive RFID reader and operation control method therefor'20148,607,333'Radio frequency identification (RFID) security apparatus having security function and method thereof'20138,591,320'System and method for managing casino chip using RFID'20138,594,066'Apparatus and method for managing channel resource in beacon-enabled wireless personal area network (WPAN)'20138,564,409'Method and apparatus for operating server for RFID reader and method for operating RFID reader'20138,519,827'Method of generating activation code for radio frequency identification tag'20138,471,525'Apparatus and method for charging internal battery in wireless sensor network'20138,467,327'Sensor network system and communication method thereof'20138,457,047'Multiple pans conflict resolution method in zigbee'20138,452,319'Ad-hoc wireless communication method using sector antenna, recovery method in ad-hoc wireless communication and ad-hoc wireless communication system'20138,442,167'Multistage channel estimation method and apparatus'20138,416,063'Method and apparatus for stopping power supply in RFID system'20138,396,042'Multiple access system and method for 60 GHz wireless communications system'20138,385,301'Apparatus and method for increasing operation time in IEEE802.15.4-2006 beacon based wireless sensor network'20138,362,879'Apparatus and method for integrated reader and tag'20138,341,248'Energy-efficient communication method in group information-based sensor network and sensor network system using the method'20128,334,755'Method for recognizing radio frequency identification tag reader and apparatus thereof'20128,332,707'Method of transmission of large data amounts in sensor network based on MAC'20128,319,686'Apparatus and method for controlling radiation direction'20128,314,703'Apparatus and method for managing product distribution using security tag'20128,285,243'Wake-up receiver and wake-up method using duty cycling and power off technique'20128,274,374'Synchronization method between reader and tag'20128,254,290'Method and apparatus for constructing synchronous sensor network'20128,254,342'Method for determining superframe for beacon scheduling'20128,237,592'System and method for providing policy based radio frequency identification service'20128,228,934'Method of performing routing and allocating resources in wireless sensor network'20128,219,141'System with shared power amplifier for mobile communication terminal with mobile RFID function'20128,208,401'Method of managing address spaces of incommunicable nodes in ZigBee network'20128,174,386'RFID reader controlling device, interlocking method for RFID reader, and RFID reader controlling method'20128,174,390'Radio frequency identification tag and antenna for radio frequency identification tag'20128,176,209'Data communication system'20128,170,523'Super regenerative receiver and method of saving power of the same'20128,121,080'Beacon scheduling system and method for preventing beacon overlapping'20128,115,603'Method for identifying multiple moving tags with multiple readers'20128,116,243'Wireless sensor network and adaptive method for monitoring the security thereof'20128,102,794'Cross-layer routing method in wireless sensor network'20128,102,271'Apparatus and method for asset tracking based on ubiquitous sensor network using motion sensing'20128,102,263'Passive tag including volatile memory'20128,098,201'Radio frequency identification tag and radio frequency identification tag antenna'20128,089,910'Sensor node of wireless sensor networks and operating method thereof'20128,089,909'Method of transmitting/receiving data in sensor network for reducing overhearing of sensor nodes'20128,081,062'Transmit/receive antenna system having offset feed points for high isolation'20118,081,583'Method of supporting node portability in sensor network'20118,049,666'Regional positioning method and apparatus in wireless sensor network'20118,042,016'Method and device for efficiently retransmitting packets in wired/wireless network'20118,040,280'Apparatus and method for computing location of a moving beacon using received signal strength and multi-frequencies'20118,040,828'Method for managing dormant nodes in wireless sensor network'20118,026,850'Apparatus and method for computing location of a moving beacon using time difference of arrival and multi-frequencies'20118,009,118'Open-ended two-strip meander line antenna, RFID tag using the antenna, and antenna impedance matching method thereof'20118,005,369'Apparatus for synchronizing clock in real-time locating system and method therefor'20117,995,508'Energy saving method in wireless network'20117,991,871'RFID tag for IP address-based RFID service and RFID service method using the same'20117,986,229'Apparatus for storing sensing data in tag and method thereof'20117,982,584'Mobile RFID reader and control method thereof'20117,978,022'Cable to waveguide transition apparatus having signal accumulation form of backshort and active phase shifting using the same'20117,969,913'Localization apparatus for recognizing location of node in sensor network and method thereof'20117,940,183'Antenna for radio frequency identification tag'20117,940,711'Node device and method for beacon scheduling in ad-hoc network and data transmitting method thereof'20117,933,271'MAC forwarding method for multi-hop routing in communication system between vehicles'20117,933,577'Method and apparatus for sharing portable terminal in CDMA system and mobile RFID system'20117,929,558'Method for buffering receive packet in media access control for sensor network and apparatus for controlling buffering of receive packet'20117,928,840'Method and system for preventing loss or theft using wireless PAN or LAN'20117,920,834'Apparatus and method for selecting antennas and nodes MIMO communication system'20117,899,074'Apparatus and method for controlling multi-channel access'20117,894,771'Method for selecting desired item information in mobile terminal'20117,893,834'Power control method for mobile RFID reader and RFID reader using the same'20117,893,836'Method and apparatus for avoiding collision between each of radio frequency identification readers'20117,884,723'Lower power battery-assisted RFID tag having improved recognition distance, and wake-up method thereof'20117,876,269'Radio frequency identification tag antenna using proximity coupling for attaching to metal'20117,825,791'Distributional alert system for disaster prevention utilizing ubiquitous sensor network'20107,821,378'Apparatus and method for receiving tag signal in mobile RFID reader'20107,804,455'Antenna apparatus for linearly polarized diversity antenna in RFID reader and method of controlling the antenna apparatus'20107,791,543'Antenna for radio frequency identification tag'20107,768,390'Method for transmitting sensor data in sensor network including pair node'20107,750,823'Apparatus and method for channel allocation according to traveling direction in inter-vehicle communications'20107,733,273'Radio frequency identification tag antenna for attaching to metal'20107,697,458'Node for self localization, clustering method using the same, and localization method'20107,675,403'Method for estimating number of tags in slotted aloha-based RFID system'20107,629,929'Antenna using proximity-coupled feed method, RFID tag having the same, and antenna impedance matching method thereof'20097,609,162'Mobile RFID service providing apparatus and method thereof'20097,592,917'RFID system and method for protecting information'20097,545,328'Antenna using inductively coupled feeding method, RFID tag using the same and antenna impedance matching method thereof'20097,538,678'Data storing apparatus and method for RFID tags with sensors'20097,504,998'PIFA and RFID tag using the same'20097,505,008'Electrical loop antenna with unidirectional and uniform current radiation source'20097,427,955'Dual polarization antenna and RFID reader employing the same'20087,414,583'PIFA, RFID tag using the same and antenna impedance adjusting method thereof'20087,161,357'Apparatus for measuring read range between RFID tag and reader'20077,006,044'Microstrip patch antenna using MEMS technology'20066,965,345'Method for designing multiband antenna using genetic algorithm device linked to full electromagnetic wave analyzing device'20056,124,832'Structure of vehicular active antenna system of mobile and satellite tracking method with the system'20005,854,609'Satellite tracking method for vehicle-mounted antenna system'19985,497,402'Automatic frequency control device for satellite communications ground system'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–2016Patents assigned to KOREA ELECTRONICS TELECOMM (110)· patent assignee history
1996–2020Based in Daejeon, KR· patent location history
2000–2014Based in Daejon, KR· patent location history
2008Based in Daegu, KR· patent location history
2011–2015Patents assigned to PYO CHEOL SIG (41)· patent assignee history
2011–2014Patents assigned to PYO CHEOL-SIG (13)· patent assignee history
2012–2015Patents assigned to CHAE JONG-SUK (18)· patent assignee history
2012Based in Deajeon, KR· patent location history
2016–2021Patents assigned to ELECTRONICS & TELECOMMUNICATIONS RES INST (14)· patent assignee history
2020–2021Based in Sejong-si, KR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KOREA ELECTRONICS TELECOMM1101996–2016
PYO CHEOL SIGself412011–2015
CHAE JONG-SUK182012–2015
ELECTRONICS & TELECOMMUNICATIONS RES INST142016–2021
PYO CHEOL-SIGself132011–2014
Locations
LocationPatentsSpan
Daejeon, KR931996–2020
Daejon, KR302000–2014
Sejong-si, KR52020–2021
Deajeon, KR12012
Daegu, KR12008