ClassID:

223459

H04B1/7093 - CPC Classification

Classification description:

Details of transmission systems, not covered by a single one of groups - ; Details of transmission systems not characterised by the medium used for transmission; Spread spectrum techniques using direct sequence modulation; Correlator structure Matched filter type

Sub-classes:
Recent Application in this class:
#1
20250385703
2025-12-18

SYSTEM AND METHODS FOR CONTROLLING FILTER BANK DEVICE

#2
20250379610
2025-12-11

DUTY-CYCLE-BASED RECEIVER WITH LISTENING POWER CONSUMPTION REDUCTION

#3
20240364495
2024-10-31

Receiver with coherent matched filter

#4
20240356242
2024-10-24

ANTENNA-PLEXER FOR INTERFERENCE CANCELLATION

#5
20240348283
2024-10-17

PARALLELIZATION OF HADAMARD TRANSFORMS OF WIRELESS SIGNALS

#6
20240313808
2024-09-19

HIGH-PERFORMANCE FILTER BANK CHANNELIZERS

#7
20240171212
2024-05-23

PROCESSING DEVICE, NETWORK NODE, CLIENT DEVICE, AND METHODS THEREOF

#8
20240072456
2024-02-29

Antenna-plexer for interference cancellation

#9
20230378998
2023-11-23

Artifact free chaotic spread spectrum communication

#10
20230261785
2023-08-17

Polar coding Reed-Muller node optimization using Fast Hadamard Transform

#11
20230198735
2023-06-22

RECEIVER WITH COHERENT MATCHED FILTER

#12
20220416840
2022-12-29

Configurable acquisition engine for receiver of spread spectrum signals

#13
20220399908
2022-12-15

Dynamic band steering filter bank module

#14
20220368370
2022-11-17

Method and apparatus for TMBOC transmission with narrowband receivers

#15
20220247449
2022-08-04

Beam-Time Hopping Modulation System and Method

#16
20220200637
2022-06-23

HIGH-PERFORMANCE FILTER BANK CHANNELIZERS

#17
20220132606
2022-04-28

System and method for performing multiple radio frequency allocation

#18
20220110016
2022-04-07

MODIFIED INTERFACE CIRCUIT WITH ENHANCED COMMUNICATION PERFORMANCE

#19
20220029658
2022-01-27

WIRELESS REPEATER WITH FIR BASED CHANNEL EQUALIZER

#20
20210203049
2021-07-01

Reconfigurable filter based on commutation of single frequency resonators

#21
20210167804
2021-06-03

Antenna system and base station

#22
20210098897
2021-04-01

Antenna-plexer for interference cancellation

#23
20210091820
2021-03-25

Indoor and outdoor geolocation and time of arrival estimation using wireless signals

#24
20210075450
2021-03-11

High-frequency front-end module and communication device

#25
20210021296
2021-01-21

M-ary differential chaos shift keying method based on chaotic shape-forming filter

#26
20200358475
2020-11-12

Methods for improving flexibility and data rate of chirp spread spectrum systems in LoRaWAN

#27
20200343936
2020-10-29

Processing device, network node, client device, and methods thereof

#28
20200204426
2020-06-25

Method for receiving an image signal and method for transmitting an image signal

#29
20200091960
2020-03-19

Communication device, spread-spectrum receiver, and related method using normalized matched filter for improving signal-to-noise ratio in harsh environments

#30
20200014420
2020-01-09

Fast correlation of prometheus orthonormal sets (PONS) for communications

#31
20190349228
2019-11-14

Demodulator for use in radio communication receivers

#32
20190334575
2019-10-31

Processing device, network node, client device, and methods thereof

#33
20190260418
2019-08-22

Configuration of NOMA communication using multiple sets of spreading sequences

#34
20190260417
2019-08-22

Pairwise cross correlation sequences for non-orthogonal multiple access wireless communications

#35
20190229972
2019-07-25

Receiver method, receiver, transmission method, transmitter, transmitter-receiver system, and communication apparatus

#36
20190140689
2019-05-09

Processing device, network node, client device, and methods thereof

#37
20190115966
2019-04-18

Receiver with non-coherent matched filter

#38
20190068240
2019-02-28

Fallthrough correlation techniques for arbitrary-phase spread spectrum waveforms

#39
20190036674
2019-01-31

Complex synthetic method and system for physical and information signal canalizing

#40
20180375546
2018-12-27

Method and apparatus for an adaptive filter architecture

#41
20180316370
2018-11-01

Distortion cancellation device and method

#42
20180278409
2018-09-27

Receiver with coherent matched filter

#43
20180115343
2018-04-26

WIRELESS REPEATER WITH FIR BASED CHANNEL EQUALIZER

#44
20170111083
2017-04-20

Devices and methods employing hermetic transforms for encoding and decoding digital information in spread-spectrum communication systems

#45
20170070997
2017-03-09

System and method for enhancing channel estimation at a receiver

#46
20160365991
2016-12-15

Method and System for Performing Optimized Channel Estimation

#47
20160359552
2016-12-08

Method and apparatus for demodulation of a desired signal by constellation-independent cancellation of nonlinear-distorted interference

#48
20160219542
2016-07-28

User equipment and base station for frame timing and cell group synchronization

#49
20160191114
2016-06-30

Methods and apparatuses using filter banks for multi-carrier spread spectrum signals

#50
20160050091
2016-02-18

Method and apparatus for an adaptive filter architecture

#51
20150215776
2015-07-30

Methods and apparatuses for self-generating fault-tolerant keys in spread-spectrum systems

#52
20150162950
2015-06-11

Method and decoder for despreading data signals spread using walsh sequences

#53
20150117497
2015-04-30

Devices and methods employing hermetic transforms for encoding and decoding digital information in spread-spectrum communications systems

#54
20150110160
2015-04-23

DATA TRANSMISSION METHOD AND APPARATUS

#55
20150103808
2015-04-16

Random access channel preamble

#56
20150091754
2015-04-02

UNAMBIGUOUS CODE TRACKING SYSTEM FOR GLOBAL NAVIGATION SATELLITE SYSTEMS

#57
20150049790
2015-02-19

Methods and apparatuses using filter banks for multi-carrier spread spectrum signals

#58
20150016572
2015-01-15

Message retrieving system with signal collision mitigation and a method thereof

#59
20150010043
2015-01-08

Methods for managing alignment and latency in interference suppression

#60
20140270017
2014-09-18

Device and method for computing a channel estimate

#61
20140269851
2014-09-18

Systems, methods, and devices for improving signal detection in communication systems

#62
20140269248
2014-09-18

Method and apparatus for an adaptive filter architecture

#63
20140256342
2014-09-11

Method and apparatus for an adaptive filter architecture

#64
20140219321
2014-08-07

METHOD AND APPARATUS FOR PACKET ACQUISITION

#65
20140206351
2014-07-24

Method and apparatus for an adaptive filter architecture

#66
20140198885
2014-07-17

Methods and systems for mitigating signal interference

#67
20140162672
2014-06-12

Method and apparatus for an adaptive filter architecture

#68
20140140449
2014-05-22

Communication method and reception apparatus

#69
20140119481
2014-05-01

Symbol timing recovery with multi-core processor

#70
20140092942
2014-04-03

Methods and apparatuses using filter banks for multi-carrier spread-spectrum signals

#71
20140016676
2014-01-16

SPREAD-SPECTRUM CODES GENERATION

#72
20130142218
2013-06-06

Methods and apparatuses using filter banks for multi-carrier spread-spectrum signals

#73
20130121382
2013-05-16

Spread-carrier self-detecting code receiver with summed delay processing and methods for signal acquisition and detection

#74
20130017850
2013-01-17

Method and apparatus for an adaptive filter architecture

#75
20130010852
2013-01-10

Method and apparatus for an adaptive filter architecture

#76
20130010629
2013-01-10

Method and apparatus for an adaptive filter architecture

#77
20130010627
2013-01-10

Method and apparatus for an adaptive filter architecture

#78
20120320952
2012-12-20

Receiver for producing phase corrected signals

#79
20120314740
2012-12-13

Groupwise successive interference cancellation for block transmission with reception diversity

#80
20120281771
2012-11-08

MODULATOR, FILTER, METHOD OF CONTROLLING GAIN OF FILTER, AND CODE MODULATING METHOD

#81
20120275385
2012-11-01

Random access channel preamble

#82
20120224609
2012-09-06

ACTIVE SPREAD CODE DETECTION

#83
20120209353
2012-08-16

Implantable medical device telemetry with adaptive frequency hopping

#84
20120195360
2012-08-02

Methods for managing alignment and latency in interference suppression

#85
20120163253
2012-06-28

TDD base station for code group synchronization

#86
20120093200
2012-04-19

CONTINUOUS ORTHOGONAL SPREADING CODE BASED ULTRA-HIGH PERFORMANCE ARRAY ANTENNA SYSTEM

#87
20110274226
2011-11-10

Synchronization processing circuit and synchronization processing method in wireless communication system

#88
20110228819
2011-09-22

Method and apparatus for switching operating modes of a receiver

#89
20110228816
2011-09-22

Setting a transmission power level for a mobile unit

#90
20110194571
2011-08-11

ADAPTIVE FORWARD POWER CONTROL AND ADAPTIVE REVERSE POWER CONTROL FOR SPREAD-SPECTRUM COMMUNICATIONS

#91
20110188546
2011-08-04

Wireless transmit/receive unit (WTRU) for carrier offset recovery

#92
20110161028
2011-06-30

Signal processing apparatus and method thereof

#93
20110158202
2011-06-30

Code division multiple access (CDMA) communication system

#94
20110150046
2011-06-23

Receiver for real time locating system and method of receiving signal in real time locating system

#95
20110142182
2011-06-16

Matched filter circuit apparatus in the base band process system of the terminal device and method thereof

#96
20110129001
2011-06-02

Multiple-mode correlator

#97
20110085583
2011-04-14

Reception apparatus using spread spectrum communication scheme

#98
20100284444
2010-11-11

Method and apparatus for packet acquisition

#99
20100272158
2010-10-28

Spread-spectrum codes generation

#100
20100272157
2010-10-28

Spread spectrum encoding and decoding

#101
20100272155
2010-10-28

CODE DETECTION

#102
20100272154
2010-10-28

Spread-spectrum modulation and demodulation

#103
20100240411
2010-09-23

Random access channel preamble

#104
20100172442
2010-07-08

Access code detection and DC offset-interference correction

#105
20100166121
2010-07-01

METHODS AND APPARATUS FOR RECEIVER HAVING FAST WALSH TRANSFORM

#106
20100165949
2010-07-01

Space time transmit diversity for TDD/WCDMA systems

#107
20100157950
2010-06-24

SYSTEM FOR USING RAPID ACQUISITION SPREADING CODES FOR SPREAD-SPECTRUM COMMUNICATIONS

#108
20100150207
2010-06-17

Setting a transmission power level for a mobile unit

#109
20100118921
2010-05-13

Self-adaptive digital RF bandpass and bandstop filter architecture

#110
20100118920
2010-05-13

SATELLITE COMMUNICATION TRANSMITTER AND RECEIVER FOR REDUCING CHANNEL INTERFERENCE

#111
20100098137
2010-04-22

Detection device of a spreading code and a timing, and a method thereof

#112
20100046404
2010-02-25

Acquisition circuit for low chip rate option for mobile telecommunication system

#113
20100040117
2010-02-18

Correlation peak location

#114
20100002752
2010-01-07

EFFICIENT MULTIPATH CENTROID TRACKING CIRCUIT FOR A CODE DIVISION MULTIPLE ACCESS (CDMA) SYSTEM

#115
20090323772
2009-12-31

Wireless communication system

#116
20090274194
2009-11-05

Spread-spectrum communication unit

#117
20090268644
2009-10-29

User equipment for synchronizing to a TDD base station

#118
20090245332
2009-10-01

Correlator And Ultrawideband Radio Receiving Apparatus Incorporating The Same

#119
20090245220
2009-10-01

Random access channel preamble

#120
20090245219
2009-10-01

Active spread code detection

#121
20090185629
2009-07-23

Coding a signal with a shuffled-Hadamard function

#122
20090180524
2009-07-16

Device and method for fast transition from preamble synchronization to data demodulation in direct sequence spread spectrum (DSSS) communications

#123
20090175391
2009-07-09

Matched filter and receiver

#124
20090135920
2009-05-28

Modulator, filter, method of controlling gain of filter, and code modulating method

#125
20090122841
2009-05-14

Despreading circuit and electronic apparatus

#126
20090103508
2009-04-23

Automatic power control system for a code division multiple access (CDMA) communications system

#127
20090080495
2009-03-26

Groupwise successive interference cancellation for block transmission with reception diversity

#128
20090067560
2009-03-12

Parallel decoder

#129
20090010363
2009-01-08

Matched filter

#130
20080317160
2008-12-25

Code-modulated path-sharing multi-signal systems

#131
20080316993
2008-12-25

Method and apparatus for implementing matched filters in a wireless communication system

#132
20080298529
2008-12-04

Acquisition circuit for low chip rate option for mobile telecommunication system

#133
20080267303
2008-10-30

Synchronization for chirp sequences

#134
20080232434
2008-09-25

Means for low probability of interception/detection underwater acoustic communications

#135
20080198828
2008-08-21

Multiuser detector for variable spreading factors

#136
20080140752
2008-06-12

Method and apparatus for efficient matrix multiplication in a direct sequence CDMA system

#137
20080130733
2008-06-05

Equalizer device

#138
20080130482
2008-06-05

Random access preamble coding for initiation of wireless mobile communications sessions

#139
20080111734
2008-05-15

Multiplicative mismatched filters for optimum range sidelobe suppression in barker code reception

#140
20080095278
2008-04-24

Apparatus and method for reducing complexity of matched filter

#141
20080043683
2008-02-21

Apparatus and method for communicating packet data control channel in a mobile communication system

#142
20080019431
2008-01-24

Groupwise successive interference cancellation for block transmission with reception diversity

#143
20080019429
2008-01-24

PARALLEL INTERFERENCE CANCELLATION METHOD AND APPARATUS FOR MULTIUSER DETECTION OF CDMA SIGNALS

#144
20080015655
2008-01-17

Implantable medical device telemetry with adaptive frequency hopping

#145
20070291826
2007-12-20

Spread spectrum receiver for restoring received symbols with a symbol detection window adjusted in optimal and a method therefor

#146
20070291823
2007-12-20

RF modem utilizing saw device with pulse shaping and programmable frequency synthesizer

#147
20070291821
2007-12-20

Matched filter for scalable spread spectrum communications systems

#148
20070258412
2007-11-08

Method for recovering data transmitted over a plurality of channels employing wireless code division multiple access communication

#149
20070237065
2007-10-11

M-ARY orthogonal coded/balanced UWB transmitted reference systems

#150
20070230546
2007-10-04

Equalizer with reduced complexity with application to long delay spread channels

#151
20070217556
2007-09-20

Method and apparatus for switching operating modes of a receiver

#152
20070195867
2007-08-23

System for direct acquisition of received signals

#153
20070195862
2007-08-23

Spread-spectrum receiver with fast M-sequence transform

#154
20070160013
2007-07-12

Multistage despreading of spread spectrum communications signals

#155
20070124356
2007-05-31

Correlation method to adaptively operate in time varying phase and correlator thereof

#156
20070116103
2007-05-24

Method and apparatus for configuring a RAKE receiver

#157
20070110006
2007-05-17

Burst detector

#158
20070098056
2007-05-03

Digital receiver device based on an input comparator

#159
20070058701
2007-03-15

Method for detecting the orthogonal code CDMA signal

#160
20070047630
2007-03-01

Synchronous control apparatus for initial synchronization when receiving a wireless signal

#161
20070037541
2007-02-15

Wireless Communications Device Including a Joint Space-Time Optimum Filter (JSTOF) Using Cholesky and Eigenvalue Decompositions

#162
20070019712
2007-01-25

Apparatus and method for multiuser detection in CDMA communication system

#163
20070014338
2007-01-18

Base station for carrier offset recovery

#164
20070014271
2007-01-18

Packet Detection Device

#165
20070002983
2007-01-04

Spacetime equalization in a wireless receiver

#166
20060280136
2006-12-14

User equipment for synchronizing to a TDD base station

#167
20060277236
2006-12-07

Multi-code correlation architecture for use in software-defined radio systems

#168
20060262837
2006-11-23

Acquisition matched filter for W-CDMA systems providing frequency offset robustness

#169
20060262833
2006-11-23

Digital receiver device

#170
20060256845
2006-11-16

Receiver device suited to a transmission system using a direct sequence spread spectrum

#171
20060245481
2006-11-02

Matched filter for scalable spread spectrum communications systems

#172
20060215615
2006-09-28

Correlation value calculation circuit

#173
20060209936
2006-09-21

Matched filter and spread spectrum receiver

#174
20060209929
2006-09-21

Decoding device, adapted for a transmission system using direct sequence spread spectrum

#175
20060203894
2006-09-14

Method and device for impulse response measurement

#176
20060203892
2006-09-14

Spread spectrum communication unit

#177
20060188028
2006-08-24

Analog correlator for very high speed data communication

#178
20060182168
2006-08-17

Training sequence detection scheme and device of downlink in tdd/cdma system

#179
20060153113
2006-07-13

Radio communication terminal apparatus and radio communication base station apparatus

#180
20060140314
2006-06-29

Signal acquisition apparatus and method for reducing false alarm rate

#181
20060133464
2006-06-22

Acquisition circuit for low chip rate option for mobile telecommunication system

#182
20060133456
2006-06-22

Memory-based device and method of channel estimation in a digital communication receiver

#183
20060128400
2006-06-15

Method of transmitting paging indicator and notification indicator and corresponding modulation and demodulation devices

#184
20060126573
2006-06-15

Random access channel preamble

#185
20060104393
2006-05-18

Apparatus and method of detection for a packet-based wireless receiver employing multiple, concurrent transmitted streams

#186
20060072689
2006-04-06

Matched filter and cross correlation method

#187
20060072654
2006-04-06

Adaptive generalized matched filter rake receiver system and method

#188
20060002582
2006-01-05

Transmitted-signal producing method, communicating method, and data structure of transmitted signal

#189
20050281319
2005-12-22

PACKET SPREAD-SPECTRUM RECEIVER

#190
20050272460
2005-12-08

Apparatus and method for measurement of communication quality in CDMA system

#191
20050271017
2005-12-08

Packet-switched spread-spectrum system

#192
20050265430
2005-12-01

Method and subscriber unit for performing power control

#193
20050254557
2005-11-17

Receiver and base station for producing phase-corrected channel signals

#194
20050243944
2005-11-03

Transmission signal formation method, communication method, and transmission signal data structure

#195
20050243897
2005-11-03

Rapid acquisition spreading codes for spread-spectrum communications

#196
20050238087
2005-10-27

Multiple simultaneous frequency and code acquisition for a code division multiple access (CDMA) communication system

#197
20050232343
2005-10-20

Matched filter system

#198
20050223049
2005-10-06

Efficient multichannel filtering for CDMA modems

#199
20050220186
2005-10-06

Timing adjustment method and digital filter and receiver using the method

#200
20050213645
2005-09-29

Method and apparatus for detecting signals, and transmitting apparatus and receiving apparatus using the same

#201
20050201502
2005-09-15

Method and apparatus for synchronization of a receiver to a transmitter

#202
20050190819
2005-09-01

Apparatus and method for providing code timing acquisition in a mobile communication system using multiple antennas

#203
20050160304
2005-07-21

Matched filter circuit and correlation calculation method

#204
20050157743
2005-07-21

CDMA subtractive interference cancellation

#205
20050135462
2005-06-23

Reception apparatus using spread spectrum communication scheme

#206
20050128937
2005-06-16

Determination of correlation in the frequency domain

#207
20050105638
2005-05-19

Method and apparatus for performing modulation/demodulation in a wireless communication system

#208
20050100081
2005-05-12

Equalizer with decision feedback frequency tracking and bit decoding for spread spectrum communications

#209
20050094715
2005-05-05

Method of compensating for energy loss and eliminating inter-symbol interference and inter-chip interference and rake receiver for WLAN adopting the same

#210
20050094604
2005-05-05

Method and apparatus for adaptive power control for spread-spectrum communications

#211
20050074054
2005-04-07

Matched filter for scalable spread spectrum communications systems

#212
20050070237
2005-03-31

Receiving method and receiver with high-precision signal estimation

#213
20050042997
2005-02-24

Spacetime equalization in a wireless receiver

#214
20050025222
2005-02-03

System and method for despreading in a spread spectrum matched filter

#215
20050018759
2005-01-27

System and method for despreading in a spread spectrum matched filter

#216
20050018758
2005-01-27

Receiving spread spectrum signal in radio system

#217
20050018646
2005-01-27

Multistage PN code acquisition circuit and method

#218
20050013346
2005-01-20

CDMA system transmission matrix coefficient calculation

#219
20050002446
2005-01-06

Method and apparatus for frequency-robust detection of a wideband code division multiple access secondary synchronization channel

#220
17173920
2022-02-08

Frequency selective limiter

#221
16520986
2020-09-15

Methods for improving flexibility and data rate of chirp spread spectrum systems in LoRaWAN

#222
16030267
2019-09-03

Fast correlation of prometheus orthonormal sets (PONS) for communications

#223
15290708
2018-02-27

Manchester correlator