Patents-Review.com
ClassID:

227806 ⎘

H04M9/027 - CPC Classification

Classification description:

Arrangements for interconnection not involving centralised switching involving a common line for all parties; Multiplex systems Frequency division multiplex systems

Recent Application in this class:
#1
20170285105
2017-10-05

Terminal apparatus, base station apparatus, communication method, and integrated circuit

 #2
20140105263
2014-04-17

Systems and method for orthogonal frequency divisional multiplexing

 #3
20120195184
2012-08-02

Systems and methods for orthogonal frequency divisional multiplexing

 #4
20120076183
2012-03-29

Systems and method for orthogonal frequency division multiplexing

 #5
20110255621
2011-10-20

Synchronized multipoint-to-point communication using orthogonal frequency division

 #6
20110242963
2011-10-06

Systems and methods for orthogonal frequency division multiplexing

 #7
20100014605
2010-01-21

System for multiple use subchannels

 #8
20090316816
2009-12-24

Method for multiple use subchannels

 #9
20090238065
2009-09-24

SYSTEM AND METHOD FOR CONTENTION BASED TONES IN A MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM

 #10
20090225818
2009-09-10

Systems and method for orthogonal frequency divisional multiplexing

 #11
20090122883
2009-05-14

FOLLOW-UP SYNCHRONIZATION TO MAINTAIN SYNCHRONIZATION THROUGHOUT TRANSMISSION

 #12
20090122881
2009-05-14

FOLLOW-UP SYNCHRONIZATION TO MAINTAIN SYNCHRONIZATION THROUGHOUT TRANSMISSION

 #13
20090092040
2009-04-09

Methods and systems for selecting modulation in an orthogonal frequency division multiplexing system

 #14
20090080554
2009-03-26

Tone allocation in multipoint-to-point communication using orthogonal frequency division multiplexing

 #15
20090080553
2009-03-26

Synchronization techniques in multipoint-to-point communication using orthogonal frequency division multiplexing

 #16
20090080552
2009-03-26

SYSTEM FOR MULTIPLE USE SUBCHANNELS

 #17
20090080505
2009-03-26

Ranging and round trip delay timing adjustment in a multi-point to point bidirectional communication system

 #18
20090074095
2009-03-19

System for multi-frame alignment

 #19
20090074087
2009-03-19

SYSTEM FOR FOLLOW-UP SYNCHRONIZATION TO MAINTAIN SYNCHRONIZATION THROUGHOUT TRANSMISSION

 #20
20090067516
2009-03-12

Ranging and round trip delay timing adjustment in a multi-point to point bidirectional communication system

 #21
20090067319
2009-03-12

SYSTEMS AND METHOD FOR ORTHOGONAL FREQUENCY DIVISIONAL MULTIPLEXING

 #22
20080273607
2008-11-06

Ranging and round trip delay timing adjustment in a multi-point to point bidirectional communication system

 #23
20080253435
2008-10-16

SYSTEMS AND METHOD FOR ORTHOGONAL FREQUENCY DIVISIONAL MULTIPLEXING

 #24
20080240410
2008-10-02

Systems and method for orthogonal frequency divisional multiplexing

 #25
20080240214
2008-10-02

Systems and method for orthogonal frequency divisional multiplexing

 #26
20080225692
2008-09-18

SYSTEMS AND METHOD FOR ORTHOGONAL FREQUENCY DIVISIONAL MULTIPLEXING

 #27
20080225691
2008-09-18

Systems and method for orthogonal frequency divisional multiplexing

 #28
20080225690
2008-09-18

Systems and method for orthogonal frequency divisional multiplexing

 #29
20080123514
2008-05-29

METHODS FOR MULTIFRAME ALIGNMENT

 #30
20080082598
2008-04-03

Systems and method for orthogonal frequency divisional multiplexing

 #31
20080063010
2008-03-13

Systems and method for orthogonal frequency divisional multiplexing

 #32
20080056398
2008-03-06

SYSTEMS AND METHOD FOR ORTHOGONAL FREQUENCY DIVISIONAL MULTIPLEXING

 #33
20080056119
2008-03-06

SYSTEMS AND METHOD FOR ORTHOGONAL FREQUENCY DIVISIONAL MULTIPLEXING

 #34
20080049860
2008-02-28

SYSTEMS AND METHOD FOR ORTHOGONAL FREQUENCY DIVISIONAL MULTIPLEXING

 #35
20080049856
2008-02-28

SYSTEMS AND METHOD FOR ORTHOGONAL FREQUENCY DIVISIONAL MULTIPLEXING

 #36
20080049604
2008-02-28

Systems and method for orthogonal frequency divisional multiplexing

 #37
20080049603
2008-02-28

System and method for multiframe alignment in a multipoint-to-point orthogonal frequency division multiplexing system

 #38
20080049599
2008-02-28

TONE HOPPING IN A MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM

 #39
20080043704
2008-02-21

SYSTEM AND METHOD FOR ORDERWIRE MODULATION IN A MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM

 #40
20080043612
2008-02-21

Synchronization of remote units using multiple adjustments

 #41
20080043611
2008-02-21

Method and system for dynamic bandwidth allocation

 #42
20080040763
2008-02-14

System and method for contention based tones in a multipoint-to-point orthogonal frequency division multiplexing system

 #43
20080037663
2008-02-14

Timing and symbol alignment in multipoint-to-point communication using orthogonal frequency division multiplexing

 #44
20080037415
2008-02-14

SYSTEM AND METHOD FOR RANGING IN A MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM

 #45
20080037414
2008-02-14

SYSTEM AND METHOD FOR MULTIFRAME ALIGNMENT IN A MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM

 #46
20080037412
2008-02-14

System and method for round trip delay adjustment in a multipoint-to-point orthogonal frequency division multiplexing system

 #47
20080031373
2008-02-07

System and method for contention based tones in a multipoint-to-point orthogonal frequency division multiplexing system

 #48
20080031127
2008-02-07

SYSTEM AND METHOD FOR ORDERWIRE MODULATION IN A MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM

 #49
20080025284
2008-01-31

SYSTEM FOR MULTI-FRAME ALIGNMENT

 #50
20080025202
2008-01-31

SCANNING BY REMOTES IN MULTIPOINT-TO-POINT COMMUNICATION USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING

 #51
20080025201
2008-01-31

SYSTEM AND METHOD FOR RANGING AND ROUND TRIP DELAY ADJUSTMENT IN A MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM

 #52
20070297527
2007-12-27

Synchronization techniques in multipoint-to-point communication using orthogonal frequency division multiplexing

 #53
20070286240
2007-12-13

GUARD TONES IN A MULTI-POINT TO POINT ORTHOGINAL FREQUENCY DIVISION MULTIPLEXING SYSTEM

 #54
20070280099
2007-12-06

MULTIFRAME ALIGNMENT IN MULTIPOINT-TO-POINT COMMUNICATION USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING

 #55
20070274202
2007-11-29

FORWARD-LOOKING TONE ALLOCATION IN MULTIPOINT-TO-POINT COMMUNICATION USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING

 #56
20070274200
2007-11-29

REMOTE BAND SCANNING IN MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULITIPLEXING COMMUNICATION

 #57
20070263665
2007-11-15

SYSTEMS FOR CONTENTION-BASED BANDWIDTH REQUESTS IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEMS

 #58
20070253500
2007-11-01

METHOD FOR MULTIPLE USE SUBCHANNELS

 #59
20070253323
2007-11-01

Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing

 #60
20070253322
2007-11-01

System for multiple use subchannels

 #61
20070248146
2007-10-25

Methods and systems for tone hopping

 #62
20070248001
2007-10-25

Method and system for forward-looking tone allocation

 #63
20070245394
2007-10-18

Training premable in multipoint-to-point communication using orthogonal frequency division multiplexing

 #64
20070242597
2007-10-18

Scanning by remotes in multipoint-to-point communication using orthogonal frequency division multiplexing

 #65
20070237182
2007-10-11

CONTENTION-BASED ACCESS IN MULTIPOINT-TO-POINT COMMUNICATION USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING

 #66
20070237070
2007-10-11

METHODS FOR CONTENTION-BASED BANDWIDTH REQUESTS IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEMS

 #67
20070237066
2007-10-11

Systems for contention-based bandwidth requests in orthogonal frequency division multiplexing systems

 #68
20070230325
2007-10-04

Method and system for training sequences

 #69
20070223363
2007-09-27

Control modulation in multipoint-to-point communication using orthogonal frequency division multiplexing

 #70
20070223362
2007-09-27

System for oderwire modulation

 #71
20070223361
2007-09-27

Method for orderwire modulation

 #72
20070217325
2007-09-20

DISTRIBUTED CONTROL IN SYNCHRONIZING REMOTE UNITS TO HOST UNIT

 #73
20070217324
2007-09-20

DISTRIBUTED CONTROL IN SYNCHRONIZING REMOTE UNITS TO HOST UNIT

 #74
20070211617
2007-09-13

VARIABLE ERROR CORRECTION IN MULTIPOINT-TO-POINT COMMUNICATION USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING

 #75
20070206693
2007-09-06

ADAPTIVE MODULATION IN MULTIPOINT-TO-POINT COMMUNICATION USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING

 #76
20070206491
2007-09-06

DISTRIBUTED CONTROL OF POWER IN MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION

 #77
20070204317
2007-08-30

SYMBOL ALIGNMENT IN MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION

 #78
20070201628
2007-08-30

DISTRIBUTED CONTROL OF POWER IN MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION

 #79
20070201573
2007-08-30

SYSTEM FOR VARIABLE FORWARD ERROR CORRECTION IN A MULTIPOINT TO POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM

 #80
20070201352
2007-08-30

Ranging and round trip delay timing adjustment in a multi-point to point bidirectional communication system

 #81
20070201348
2007-08-30

Use of identifier of remote unit for downstream signals

 #82
20070201347
2007-08-30

USE OF GUARD BANDS IN MULTIPOINT-TO-POINT ORTHGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION

 #83
20070201346
2007-08-30

Multipoint-to-point communication using orthgonal frequency division multiplexing and identification codes

 #84
20070201345
2007-08-30

DISTRIBUTED CONTROL OF CARRIER FREQUENCY IN MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION

 #85
20070199034
2007-08-23

System for multi-frame alignment

 #86
20070195902
2007-08-23

METHOD FOR VARIABLE FORWARD ERROR CORRECTION IN A MULTI-POINT TO POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM

 #87
20070195901
2007-08-23

Method and system for adaptive modulation

 #88
20070195689
2007-08-23

Method and system for adaptive modulation

 #89
20070195687
2007-08-23

SYMBOL ALIGNMENT IN MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION

 #90
20070192815
2007-08-16

Method for tone hopping in a multipoint-to-point orthogonal frequency division multiplexing communication system

 #91
20070186261
2007-08-09

DATA-SPECIFIC BANDWIDTH ALLOCATION IN MULTIPOINT-TO-POINT COMMUNICATION USING ORTHGONAL FREQUENCY DIVISION MULTIPLEXING

 #92
20070186260
2007-08-09

METHODS FOR MULTIFRAME ALIGNMENT

 #93
20070186258
2007-08-09

Tone allocation in multipoint-to-point communication using orthgonal frequency division multiplexing

 #94
20070183591
2007-08-09

Synchronization of remote units for a communication network

 #95
20070174890
2007-07-26

Synchronized multipoint-to-point communication using orthogonal frequency division

 #96
20070162946
2007-07-12

Round trip delay adjustment in multipoint-to-point communication using orthogonal frequency division multiplexing

 #97
20070162943
2007-07-12

MULTIPOINT-TO-POINT COMMUNICATION USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING

 #98
20070157278
2007-07-05

CONTENTION-BASED ACCESS TO TONES IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) WAVEFORM

 #99
20070157277
2007-07-05

Multipoint-to-point communication using orthogonal frequency division multiplexing

 #100
20070147229
2007-06-28

Ranging and round trip delay timing adjustment in a multi-point to point bidirectional communication system

 #101
20070116209
2007-05-24

Multipoint-to-point communication using orthogonal frequency division multiplexing

 #102
20070115803
2007-05-24

MULTIPOINT-TO-POINT COMMUNICATION USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING

 #103
20070110220
2007-05-17

DISTRIBUTED CONTROL OF CARRIER FREQUENCY IN MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION

 #104
20070110096
2007-05-17

CONTENTION-BASED ACCESS TO TONES IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) WAVEFORM