Patents-Review.com
ClassID:

225940 ⎘

H04L27/148 - CPC Classification

Classification description:

Modulated-carrier systems; Frequency-modulated carrier systems, i.e. using frequency-shift keying; Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using filters, including PLL-type filters

Recent Application in this class:
#1
20260081813
2026-03-19

DEMODULATOR CIRCUIT

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20250310161
2025-10-02

TRANSCEIVER DEVICE AND METHOD THEREOF

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20250293723
2025-09-18

WIRELESS COMMUNICATION APPARATUS AND WIRELESS SYSTEM

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20250097085
2025-03-20

SYNCHRONIZATION DETECTION APPARATUS, SYNCHRONIZATION DETECTION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

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20250055737
2025-02-13

INTERPOLATED DETERMINISTIC GRADIENT ADAPTIVE FILTER

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20240243952
2024-07-18

DATA PROCESSING FOR AUTOMATIC MODULATION CLASSIFICATION OF WIRELESS SIGNALS

 #7
20240235909
2024-07-11

Method and apparatus for transmitting PLCP frame in wireless local area network system

 #8
20240214249
2024-06-27

TECHNIQUES FOR CYCLIC PREFIX COMPATIBLE FORMULATION OF SINGLE CARRIER WAVEFORMS

 #9
20240048416
2024-02-08

Method and apparatus for receiving FSK signals

 #10
20240039586
2024-02-01

Spread-OFDM receiver

 #11
20230421419
2023-12-28

Reconstruction method and device for multi-carrier differential chaos shift keying (DCSK) signal

 #12
20230327939
2023-10-12

Systems, methods and devices for joint calibration of transmit and receive IQ mismatch

 #13
20230224198
2023-07-13

Method and apparatus for receiving FSK signals

 #14
20230198580
2023-06-22

Carrier interferometry transmitter

 #15
20230140050
2023-05-04

Band filter for filtering a discrete time series signal

 #16
20230062846
2023-03-02

Synchronously-switched multi-input demodulating comparator

 #17
20220345341
2022-10-27

Method and apparatus for transmitting PLCP frame in wireless local area network system

 #18
20220200829
2022-06-23

Bluetooth receiver, electronic device and method for a Bluetooth receiver

 #19
20220150095
2022-05-12

Modulator, demodulator and wireless communication system

 #20
20220123836
2022-04-21

A METHOD OF GENERATING AND PROCESSING A TRANSPORT SIGNAL FOR CARRYING CHANNELS IN A RADIO ACCESS NETWORK

 #21
20220078056
2022-03-10

Circuit and method for compensating frequency offset in wireless frequency shift keying communication

 #22
20220060225
2022-02-24

Carrier interferometry transmitter

 #23
20210377095
2021-12-02

Systems, methods and devices for joint calibration of transmit and receive IQ mismatch

 #24
20210344532
2021-11-04

Symbol boundary detection method and processor

 #25
20210336824
2021-10-28

Synchronously-switched multi-input demodulating comparator

 #26
20210144034
2021-05-13

Data processing for automatic modulation classification of wireless signals

 #27
20210014092
2021-01-14

Data processing for automatic modulation classification of wireless signals

 #28
20200351132
2020-11-05

Matched-filter radio receiver

 #29
20200322194
2020-10-08

Synchronously-switched multi-input demodulating comparator

 #30
20200259691
2020-08-13

Methods, devices and systems for receiving and decoding a signal in the presence of noise using slices and warping

 #31
20200259690
2020-08-13

Threshold computation circuit for S-FSK receiver, integrated circuit, and method associated therewith

 #32
20200204413
2020-06-25

Method and apparatus for transmitting PLCP frame in wireless local area network system

 #33
20200204410
2020-06-25

Data modulation schemes based on the Zak transform

 #34
20200186403
2020-06-11

Phase error reduction in a receiver

 #35
20200177420
2020-06-04

Low digital intermediate frequency (IF) image cancelling transceiver

 #36
20200162294
2020-05-21

Signal processing method and communications chip structure

 #37
20200162293
2020-05-21

Communication receiver interface for current loop circuit

 #38
20200162230
2020-05-21

Cable modem and digital compensation for switchable analog filter to assist echo cancellation in full duplex cable modem

 #39
20200092148
2020-03-19

Phase error reduction in a receiver

 #40
20190260618
2019-08-22

Methods, devices and systems for receiving and decoding a signal in the presence of noise using slices and warping

 #41
20190253289
2019-08-15

Circuit structure for efficiently demodulating FSK signal in wireless charging device

 #42
20190253288
2019-08-15

Method for demodulating frequency modulated signal of PMA standard wireless charging device

 #43
20190222263
2019-07-18

Method and device for synchronizing signals within a contactless device

 #44
20190207793
2019-07-04

Synchronously-switched multi-input demodulating comparator

 #45
20190116074
2019-04-18

Method of processing compressive sensing signal and apparatus for same

 #46
20190081772
2019-03-14

Fractional-N PLL based clock recovery for SerDes

 #47
20190052496
2019-02-14

Method and apparatus for transmitting PLCP frame in wireless local area network system

 #48
20190028109
2019-01-24

Phase locked loop (PLL)

 #49
20180351594
2018-12-06

DIVERSITY RECEIVER FOR WIRELESS APPLICATIONS

 #50
20180331732
2018-11-15

Blind-adaptive decoding of radio signals

 #51
20180262241
2018-09-13

Cooperative wireless networks

 #52
20180254883
2018-09-06

Wireless communication system

 #53
20180245457
2018-08-30

Adaptive equalisation

 #54
20180212808
2018-07-26

Methods, devices and systems for receiving and decoding a signal in the presence of noise using slices and warping

 #55
20180205532
2018-07-19

Front end for full duplex cable modem

 #56
20180205470
2018-07-19

System and method for frequency estimation bias removal

 #57
20180167241
2018-06-14

Method and apparatus for frequency domain inter-carrier interference compensation

 #58
20180109405
2018-04-19

Method and apparatus for transmitting PLCP frame in wireless local area network system

 #59
20180062893
2018-03-01

Coherent phase-synchronizing circuit

 #60
20180062679
2018-03-01

Demodulator

 #61
20180034673
2018-02-01

Reference signal sending method, reference signal receiving method, and apparatus

 #62
20180006853
2018-01-04

Drift robust non-coherent demodulation scheme

 #63
20170338984
2017-11-23

RECEIVER COUPLED TO AN INFINITE IMPULSE RESPONSE (IIR) COMPENSATION FILTER

 #64
20170331652
2017-11-16

Receiver including a plurality of high-pass filters

 #65
20170279506
2017-09-28

Cooperative wireless networks

 #66
20170195152
2017-07-06

Bluetooth signal receiving method and device using improved packet detection and symbol timing acquisition

 #67
20170195151
2017-07-06

Bluetooth signal receiving method and device using improved carrier frequency offset compensation

 #68
20170170872
2017-06-15

Radio frequency interconnect having a preamble generator

 #69
20170099169
2017-04-06

Sensor systems and methods utilizing band pass filter tuning

 #70
20170085364
2017-03-23

Self-adapting phase-locked loop filter for use in a read channel of a heat assisted magnetic recording drive

 #71
20170078121
2017-03-16

Superposed signal sampling apparatus and sampling method

 #72
20170070265
2017-03-09

Wireless charger using frequency aliasing FSK demodulation

 #73
20170070258
2017-03-09

Interference phase estimate system and method

 #74
20170054480
2017-02-23

Spread-OFDM receiver

 #75
20170026218
2017-01-26

Pre-coding in multi-user MIMO

 #76
20160337151
2016-11-17

Digital frequency modulation receiver with frequency variation signal and demodulation method used by the same

 #77
20160322997
2016-11-03

Systems, devices and methods related to diversity receivers

 #78
20160294589
2016-10-06

Method and apparatus for designing frequency-spatial filter with variable bandwidth

 #79
20160280242
2016-09-29

Automatic train stop control system

 #80
20160277223
2016-09-22

Carrier frequency offset processing method and apparatus and receiver

 #81
20160265349
2016-09-15

Method and apparatus for acoustic downhole telemetry and power delivery system using transverse or torsional waves

 #82
20160261442
2016-09-08

Digital frequency modulation receiver with frequency variation signal and demodulation method used by the same

 #83
20160261441
2016-09-08

Methods, devices and systems for receiving and decoding a signal in the presence of noise using slices and warping

 #84
20160248613
2016-08-25

Reception device and method for adjusting reception device

 #85
20160142113
2016-05-19

Systems and methods for inductively coupled communications

 #86
20160112228
2016-04-21

Method and apparatus for transmitting PLCP frame in wireless local area network system

 #87
20160065701
2016-03-03

Systems, methods, and apparatus for controlling power semiconductor devices

 #88
20160043768
2016-02-11

Front-end transceivers with multiple reception channels

 #89
20160020938
2016-01-21

Methods and systems for down-converting a signal using a complementary transistor structure

 #90
20160013755
2016-01-14

Methods and systems for down-converting a signal

 #91
20150358145
2015-12-10

Apparatus for correcting multipath errors in carrier phase measurements of a navigation receiver

 #92
20150341196
2015-11-26

Method and system for down-converting and electromagnetic signal

 #93
20150341195
2015-11-26

Device and method of sequence detection for frequency-shift keying

 #94
20150312085
2015-10-29

Method and system for down-converting an electromagnetic signal

 #95
20150312084
2015-10-29

Method and system for down-converting an electromagnetic signal

 #96
20150295536
2015-10-15

Methods and systems for down-converting a signal

 #97
20150263835
2015-09-17

Cooperative wireless networks

 #98
20150244551
2015-08-27

Method and system for down-converting an electromagnetic signal

 #99
20150222464
2015-08-06

System for direct conversion receivers

 #100
20150207654
2015-07-23

Intermediate frequency receiver with dynamic selection of the intermediate frequency used

 #101
20150147992
2015-05-28

Integrated receiver and integrated circuit having integrated inductors and method therefor

 #102
20150137883
2015-05-21

Adaptive FM demodulator supporting multiple modes

 #103
20150133068
2015-05-14

Tunable RF N-path filter

 #104
20150131764
2015-05-14

Methods, devices and systems for receiving and decoding a signal in the presence of noise using slices and warping

 #105
20150092586
2015-04-02

Receiver with frequency deviation detection capability and method therefor

 #106
20150071386
2015-03-12

Receiver

 #107
20150071369
2015-03-12

Sensor systems and methods utilizing band pass filter tuning

 #108
20150050018
2015-02-19

Frequency modulation signal demodulator and light receiving apparatus

 #109
20140328419
2014-11-06

METHOD FOR SETTING A FILTER COEFFICIENT FOR A COMMUNICATION SYSTEM

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20140307835
2014-10-16

Carrier frequency and phase recovery in quadrature encoded E-band communications

 #111
20140270015
2014-09-18

INTER-CARRIER INTERFERENCE PHASE NOISE COMPENSATION BASED ON PHASE NOISE SPECTRUM APPROXIMATION

 #112
20140210597
2014-07-31

Signal processing device, method of processing signal, and recording medium

 #113
20140192933
2014-07-10

Demodulator for frequency-shift keyed signals by using the Goertzel algorithm

 #114
20140192850
2014-07-10

METHOD AND APPARATUS FOR ELIMINATING THE EFFECTS OF FREQUENCY OFFSETS IN A DIGITAL COMMUNICATION SYSTEM

 #115
20140029707
2014-01-30

Receiver circuit and filtering method used therein

 #116
20140016727
2014-01-16

Low phase-noise indirect frequency synthesizer

 #117
20120220254
2012-08-30

Methods and systems for down-converting a signal using a complementary transistor structure

 #118
20110244820
2011-10-06

Integrated receivers and integrated circuit having integrated inductors

 #119
20110183640
2011-07-28

Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships

 #120
20110151821
2011-06-23

Methods and systems for down-converting a signal using a complementary transistor structure

 #121
20110110348
2011-05-12

Method and apparatus for transmitting PLCP frame in wireless local area network system

 #122
20100202566
2010-08-12

System and method for improved spur reduction in direct RF receiver architectures

 #123
20090310586
2009-12-17

Cooperative wireless networks

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20090203345
2009-08-13

Method and system for down-converting an electromagnetic signal, transforms for same, and aperture relationships

 #125
20090011710
2009-01-08

Common data line signaling and method

 #126
20080272441
2008-11-06

Method and circuit for down-converting a signal

 #127
20080182544
2008-07-31

Converting an electromagnetic signal via sub-sampling

 #128
20080076374
2008-03-27

System and method for filtering of angle modulated signals

 #129
20080075033
2008-03-27

Cooperative beam-forming in wireless networks

 #130
20080030236
2008-02-07

Multitask Circuit Comprising Resonant Element For Supplying Address And Data

 #131
20070217549
2007-09-20

FSK demodulator, FM demodulator, and related method with a build-in band-pass filter

 #132
20070109041
2007-05-17

FM detector circuit with unbalanced/balanced conversion

 #133
20070071138
2007-03-29

FSK signal detector for detecting FSK signal through digital processing

 #134
20070046813
2007-03-01

Frequency shift keying demodulator robust for frequency offset

 #135
20070036238
2007-02-15

High pass modulation of a phase locked loop

 #136
20060141975
2006-06-29

Methods and systems for down-converting a signal using a complementary transistor structure

 #137
20060140828
2006-06-29

Centrifugal reactor with residence time control

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20050286660
2005-12-29

Digital frequency determining apparatus and methods using matched filters

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20050272395
2005-12-08

Method and circuit for down-converting a signal

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2005-10-13

Frequency staggered frequency shift keying modulation

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20050202797
2005-09-15

Methods and systems for down-converting a signal using a complementary transistor structure

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20050190859
2005-09-01

IF derived data slicer reference voltage circuit

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20050018752
2005-01-27

Chirping digital wireless system

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18424362
2025-08-19

System and method of performing channel sounding for modeling ultrawideband radio frequency channels

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17386508
2023-10-31

Single carrier frequency division multiple access baseband signal generation

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17105574
2022-07-05

Transmit pre-coding

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15911926
2019-02-19

Signal processing device and signal processing method

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15859827
2019-04-23

Apparatus and method for frequency tripling

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15630106
2018-02-27

Frequency estimation, correction and noise suppression for modems

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15613293
2018-06-26

Small-footprint digital receiver for extracting narrowband frequency-slices

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14845116
2018-04-10

Active device to enable the use of legacy-equipment in higher return band splits

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14808736
2016-12-20

Self-adapting phase-locked loop filter for use in a read channel

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14664993
2016-07-12

Automatic train stop control system