H03H19/00 - CPC Classification Index

ClassID:

221032 ⎘

H03H19/00 - CPC Classification

Classification description:

Networks using time-varying elements, e.g. N-path filters

Sub-classes:

H03H19/002 » {N-path filters} 33
H03H19/004 » {Switched capacitor networks} 237
H03H19/008 » {with variable switch closing time} 38

Recent Application in this class:

20190207587

2019-07-04

Discrete time IIR filter with high stop band rejection

20170201215

2017-07-13

Resonator having distributed transconductance elements

20170070212

2017-03-09

Discrete time polyphase channelizer

20160049906

2016-02-18

Resonator having distributed transconductance elements

20160013782

2016-01-14

Delay circuit, electronic circuit using delay circuit and ultrasonic imaging device

20150244320

2015-08-27

Resonator having distributed transconductance elements

20140333373

2014-11-13

Sharp programmable filters using periodically time-varying components

20140264050

2014-09-18

Device for converting current pulses into voltage pulses

20130028363

2013-01-31

Multiple input discrete digital receiver

#10

20130028362

2013-01-31

Multiple path discrete digital receiver

#11

20130028361

2013-01-31

Discrete digital receiver with blocker circuit

#12

20130028360

2013-01-31

WIDE BANDWIDTH DISCRETE DIGITAL RECEIVER

#13

20130028359

2013-01-31

Programmable discrete digital receiver components

#14

20130028351

2013-01-31

Discrete digital receiver with sample memory

#15

20130028349

2013-01-31

Multiple output discrete digital transmitter

#16

20130028348

2013-01-31

Discrete digital transmitter

#17

20130028303

2013-01-31

Discrete digital receiver with FTBPF

#18

20130028302

2013-01-31

Discrete digital transceiver

#19

20110221504

2011-09-15

Configurable switched capacitor block

#20

20090257531

2009-10-15

Sampling filter apparatus and wireless communication apparatus

#21

20060270379

2006-11-30

Bandpass filter with carrier frequency reduction

#22

20060183456

2006-08-17

Semiconductor device, radio terminal device, and radio communication equipment

#23

20050127989

2005-06-16

Noise removing circuit