POSDATA CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 9276
 
  
 
H04B TRANSMISSION 6204
 
  
 
H04J MULTIPLEX COMMUNICATION 2123
 
  
 
H04W WIRELESS COMMUNICATION NETWORKS 2186
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0155,985 METHOD AND APPARATUS FOR GENERATING PILOT TONE IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING ACCESS SYSTEM, AND METHOD AND APPARATUS FOR ESTIMATING CHANNEL USING ITNov 21, 14Jun 04, 15[H04L]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9276719 Method and apparatus for generating pilot tone in orthogonal frequency division multiplexing access system, and method and apparatus for estimating channel using itOct 29, 13Mar 01, 16[H04L, H04J]
9084225 Bidirectional flow service support method in IEEE 802.16/WiBro systemAug 28, 08Jul 14, 15[H04L, G06F, H04W]
8644363 Apparatus and method for estimating channel in MIMO system based OFDM/OFDMADec 31, 07Feb 04, 14[H04L]
8588274 Method and apparatus for generating pilot tone in orthogonal frequency division multiplexing access system, and method and apparatus for estimating channel using itDec 21, 07Nov 19, 13[H04B]
8565262 Frequency reusing method in wireless communication system and radio access station system for the sameSep 28, 07Oct 22, 13[H04J]
8369465 Frequency offset estimation apparatus and method in wireless telecommunication systemDec 28, 06Feb 05, 13[H04L]
8265024 Frequency reusing method in wireless communication system and radio access station system for the sameAug 28, 07Sep 11, 12[H04W]
8170600 Method and apparatus for allocating downlink power in wireless communication systemSep 18, 07May 01, 12[H04B]
8165249 Apparatus and method for estimating and compensating time offset and/or carrier frequency offset in MIMO system based OFDM/OFDMAAug 30, 07Apr 24, 12[H04L]
8139652 Method and apparatus for decoding transmission signals in a wireless communication systemDec 29, 06Mar 20, 12[H04B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8320330 Service zone switching method based on load considering inter-cell interference in 802.16/WIBRO systemsExpiredMay 06, 09Nov 27, 12[H04W]
8159946 Resource management method in wireless communication systemExpiredJul 31, 08Apr 17, 12[G01R]
8139484 Unsolicited grant service class of IEEE 802.16/WiBro systemExpiredAug 28, 08Mar 20, 12[H04W]
8000888 System and method for information supplying serviceExpiredDec 23, 05Aug 16, 11[G08G, G01C]
2011/0026,482 METHOD AND APPARATUS FOR PILOT SIGNAL TRANSMISSIONAbandonedDec 26, 08Feb 03, 11[H04W]
2011/0002,286 METHOD AND APPARATUS FOR ALLOCATING DATA BURSTAbandonedJun 25, 10Jan 06, 11[H04W]
2010/0241,919 METHOD AND APPARATUS FOR ARQ FEEDBACK IN WIRELESS COMMUNICATION SYSTEMAbandonedMay 09, 08Sep 23, 10[H04L, H03M, G06F]
2010/0227,548 REPEATER INTERFACE UNIT AND SIGNAL CONVERTING METHOD THEREOFAbandonedApr 18, 07Sep 09, 10[H04B]
2010/0228,843 ELEMENT MANAGEMENT SYSTEM IN WIRELESS COMMUNICATION NETWORKAbandonedAug 16, 07Sep 09, 10[G06F]
2010/0211,629 EXPANDABLE ELEMENT MANAGEMENT SYSTEM IN WIRELESS COMMUNICATION NETWORKAbandonedAug 16, 07Aug 19, 10[G06F]
2010/0165,891 LOCAL SIGNAL GENERATOR FOR WIRELESS TELECOMMUNICATION AND LOCAL SIGNAL GENERATION METHOD AND RADIO ACCESS SYSTEM OF WIRELESS TELECOMMUNICATION SYSTEM USING THE SAMEAbandonedFeb 23, 07Jul 01, 10[H04B]
2010/0165,892 APPARATUS AND METHOD FOR IMPLEMENTING EFFICIENT REDUNDANCY AND WIDENED SERVICE COVERAGE IN RADIO ACCESS STATION SYSTEMAbandonedFeb 26, 07Jul 01, 10[H04J]
2010/0111,005 APPARATUS AND METHOD FOR TRANSMITTING UPLINK SIGNALS IN A WIRELESS COMMUNICATION SYSTEMAbandonedDec 21, 07May 06, 10[H04W]
2010/0073,080 AUTOMATIC GAIN CONTROL CIRCUIT AND METHOD FOR AUTOMATIC GAIN CONTROLAbandonedNov 23, 07Mar 25, 10[H04B]
2010/0027,698 APPARATUS AND METHOD FOR ESTIMATING CHANNEL IN OFDM/OFDMA BASED WIRELESS COMMUNICATION SYSTEMAbandonedOct 11, 07Feb 04, 10[H04L]
2010/0029,276 METHOD AND APPARATUS FOR PERFORMING HANDOVER IN WIRELESS TELECOMMUNICATION SYSTEMAbandonedSep 19, 07Feb 04, 10[H04W]
2009/0310,817 WATERMARKING METHOD, WATERMARK CHECKING METHOD, WATERMARKING DEVICE, AND WATERMARK CHECKING DEVICEAbandonedJun 29, 07Dec 17, 09[G06K]
2009/0313,477 DVR SERVER AND METHOD FOR CONTROLLING ACCESS TO MONITORING DEVICE IN NETWORK-BASED DVR SYSTEMAbandonedJun 29, 07Dec 17, 09[H04L]
2009/0262,746 ROUTER AND ROUTING METHOD FOR PORTABLE INTERNET SERVICEAbandonedSep 20, 07Oct 22, 09[H04L]
2009/0231,170 APPARATUS AND METHOD FOR DIGITAL FREQUENCY DOWN-CONVERSIONAbandonedMar 30, 07Sep 17, 09[H03M]

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