ClassID:

220913

H03H15/00 - CPC Classification

Classification description:

Transversal filters

Sub-classes:
Recent Application in this class:
#1
20250202457
2025-06-19

APPARATUS FOR PROVIDING PARALLEL FILTERING

#2
20210376818
2021-12-02

Reconfigurable gallium nitride (GaN) rotating coefficients FIR filter for co-site interference mitigation

#3
20200321943
2020-10-08

Systems and methods for analog finite impulse response filters

#4
20190280675
2019-09-12

Digital filtering for a signal with target and secondary signal bands

#5
20190229707
2019-07-25

Discrete time charge sharing IIR bandpass filter incorporating clock phase reuse

#6
20170257136
2017-09-07

Discrete time analog signal processing for simultaneous transmit and receive

#7
20170221579
2017-08-03

Discrete-time analog filtering

#8
20170187514
2017-06-29

Equalizer circuit and receiving apparatus using the same

#9
20170070212
2017-03-09

Discrete time polyphase channelizer

#10
20170070210
2017-03-09

Discrete time current multiplier circuit

#11
20170054469
2017-02-23

Quarter wavelength unit delay and complex weighting coefficient continuous-time filters

#12
20170012655
2017-01-12

Receiver, communication unit, and method for down-converting a radio frequency signal

#13
20170012607
2017-01-12

Discrete time filter, communication unit, and method for resonant charge transfer

#14
20160294363
2016-10-06

Synchronous charge sharing filter

#15
20160205471
2016-07-14

Digital/analog conversion apparatus

#16
20150222249
2015-08-06

Channel select filter apparatus and method

#17
20140362957
2014-12-11

Sampling mixer circuit and receiver

#18
20140355720
2014-12-04

Wideband FM demodulation by injection-locked division of frequency deviation

#19
20140354376
2014-12-04

High order discrete time charge rotating passive infinite impulse response filter

#20
20140233773
2014-08-21

Charge sharing analog computation circuitry and applications

#21
20140105326
2014-04-17

Periodic time segment sequence based decimation

#22
20130285766
2013-10-31

Rotating coefficient filter

#23
20130207827
2013-08-15

Charge sharing analog computation circuitry and applications

#24
20130156231
2013-06-20

Digital/analogue conversion apparatus

#25
20130077149
2013-03-28

Signal shaping circuit and light transmitting device

#26
20130036147
2013-02-07

INFINITE IMPULSE RESPONSE (IIR) FILTER AND FILTERING METHOD

#27
20130015995
2013-01-17

Impedance network for producing a weighted sum of inputs

#28
20120300888
2012-11-29

Virtual weaver architecture filter

#29
20120280745
2012-11-08

MULTI-LAYER SWITCHING IN CHARGE-DOMAIN OR SAMPLING IF FILTERS

#30
20120246208
2012-09-27

FIR filter with reduced element count

#31
20120134407
2012-05-31

Adaptive equalization with group delay

#32
20120092065
2012-04-19

FILTER CIRCUIT AND COMMUNICATION SEMICONDUCTOR DEVICE USING THE SAME

#33
20110282924
2011-11-17

Channel select filter apparatus and method

#34
20110221507
2011-09-15

Sampling mixer, filter device, and radio device

#35
20110176640
2011-07-21

Sampling circuit and receiver utilizing the same

#36
20110148513
2011-06-23

DISCRETE-TIME FILTER APPARATUS AND DISCRETE-TIME RECEIVER SYSTEM HAVING THE SAME

#37
20110069604
2011-03-24

Method and system for signal emulation

#38
20110043256
2011-02-24

Sampling filter using multiple clocks

#39
20100327965
2010-12-30

Receiver filtering devices, systems, and methods

#40
20100311375
2010-12-09

Sampling mixer, quadrature demodulator, and wireless device

#41
20100289567
2010-11-18

Filter circuit and communication device

#42
20100271107
2010-10-28

Summing circuit for a filter

#43
20100264751
2010-10-21

Filter circuit and communication apparatus

#44
20100248675
2010-09-30

Discrete filter, sampling mixer, and radio device

#45
20100201424
2010-08-12

Sampling filter apparatus

#46
20100182077
2010-07-22

Discrete filter, sampling mixer and wireless device

#47
20100167669
2010-07-01

Discrete filter, sampling mixer, and radio device

#48
20100156560
2010-06-24

Filter circuit and communication device

#49
20100109783
2010-05-06

Reconfigurable Amplifier and Filter Using Time-Varying Circuits

#50
20100109746
2010-05-06

Sampling mixer, filter device, and radio device

#51
20100097258
2010-04-22

Apparatus comprising frequency selective circuit and method

#52
20090322580
2009-12-31

Analog filter with passive components for discrete time signals

#53
20090279893
2009-11-12

Analog finite impulse response filter

#54
20090262796
2009-10-22

Equalizing filter circuit

#55
20090257531
2009-10-15

Sampling filter apparatus and wireless communication apparatus

#56
20090195425
2009-08-06

Method and device for digital-to-analog conversion with filtering

#57
20090140784
2009-06-04

High-speed pulse shaping filter systems and methods

#58
20090134938
2009-05-28

Charge domain filter circuit

#59
20090134916
2009-05-28

Charge domain filter circuit

#60
20090110217
2009-04-30

Digital/analogue conversion apparatus

#61
20090068976
2009-03-12

Filter circuit and communication semiconductor device using the same

#62
20090067555
2009-03-12

FILTER CIRCUIT, RECEIVER USING THE SAME AND FILTERING METHOD

#63
20090052597
2009-02-26

Scalable reconfigurable concurrent filter for wide-bandwidth communication

#64
20090051422
2009-02-26

Apparatus using sampling capacitors

#65
20080088389
2008-04-17

Charge domain filter device

#66
20080059688
2008-03-06

Crossbar control circuit

#67
20080037692
2008-02-14

Programmable filter

#68
20080007326
2008-01-10

Charge domain filter device

#69
20070286271
2007-12-13

Apparatus for filtering signals

#70
20070231972
2007-10-04

Manufacture of programmable crossbar signal processor

#71
20070064923
2007-03-22

Method and system for signal emulation

#72
20070001754
2007-01-04

Discrete time filter having gain for digital sampling receivers

#73
20060195883
2006-08-31

Physical layer repeater with discrete time filter for all-digital detection and delay generation

#74
20060164273
2006-07-27

Self-tuning output digital filter for direct conversion delta-sigma transmitter

#75
20060146926
2006-07-06

Adaptive equalization with group delay

#76
20060123075
2006-06-08

High speed filter

#77
20060071707
2006-04-06

Analog filter with passive components for discrete time signals

#78
20060067393
2006-03-30

Equalizer For A Serial Data Communication Receiver

#79
20050286623
2005-12-29

Adaptive filter structure with two adaptation modes

#80
20050184785
2005-08-25

Combined sample data delay compensation system

#81
20050134350
2005-06-23

Analog delay circuit

#82
20050134349
2005-06-23

Analog delay circuit

#83
20050088238
2005-04-28

High speed amplifier incorporating pre-emphasis

#84
16146146
2019-09-10

Systems and method for a low-power correlator architecture using shifting coefficients