ClassID:

221995

H03K21/40 - CPC Classification

Classification description:

Details of pulse counters or frequency dividers Monitoring; Error detection; Preventing or correcting improper counter operation

Sub-classes:
Recent Application in this class:
#1
20260074682
2026-03-12

SYSTEM AND METHODS FOR CLOCK PULSE GENERATION

#2
20260012185
2026-01-08

CLOCK DIVIDER AND CLOCK DIVISION METHOD USING SAME

#3
20250233593
2025-07-17

Counter System and Method of Driving the Counter System with Zero Accumulated Error

#4
20250180642
2025-06-05

Apparatus and Method for Clock Frequency Estimation With Delayed Measurements

#5
20250180614
2025-06-05

Apparatus and Method for Clock Frequency Estimation With Least Squares Method

#6
20230353160
2023-11-02

ANALOG TRACKING CIRCUIT TO IMPROVE DYNAMIC AND STATIC IMAGE REJECTION OF A FREQUENCY CONVERTER

#7
20230134891
2023-05-04

Apparatus, system, and method for achieving accurate insertion counts on removable modules

#8
20230126560
2023-04-27

Battery monitoring system

#9
20230070845
2023-03-09

Synchronization circuit for oscillating mirror and laser

#10
20220209776
2022-06-30

Self-diagnostic counter

#11
20220077860
2022-03-10

Capacitive digital isolator circuit with ultra-low power consumption based on pulse-coding

#12
20220057996
2022-02-24

Non-volatile counter system, counter circuit and power management circuit with isolated dynamic boosted supply

#13
20210405099
2021-12-30

Frequency measurement apparatus, microcontroller, and electronic apparatus

#14
20210152143
2021-05-20

Method and apparatus to speed convergence and control behavior of digital control loop

#15
20210131834
2021-05-06

Sensing circuit of moving body and moving body sensing device

#16
20210033636
2021-02-04

Method and apparatus for implementing drive signal for driving resolver sensor

#17
20200382123
2020-12-03

Event counter circuits using partitioned moving average determinations and related methods

#18
20200204765
2020-06-25

Synchronization circuit for oscillating mirror and laser

#19
20200166380
2020-05-28

Sensing circuit of moving body and moving body sensing device

#20
20200117425
2020-04-16

Non-volatile counter system, counter circuit and power management circuit with isolated dynamic boosted supply

#21
20190288691
2019-09-19

Apparatuses with an embedded combination logic circuit for high speed operations

#22
20190131959
2019-05-02

High speed on-chip precision buffer with switched-load rejection

#23
20190086475
2019-03-21

Battery monitoring device and battery monitoring system

#24
20190074839
2019-03-07

Semiconductor device including integrated circuit of flip-flops and switches

#25
20190068933
2019-02-28

Synchronization circuit for oscillating mirror and laser

#26
20190034169
2019-01-31

Non-volatile counter system, counter circuit and power management circuit with isolated dynamic boosted supply

#27
20180358971
2018-12-13

Apparatuses with an embedded combination logic circuit for high speed operations

#28
20180336130
2018-11-22

Method and system for implementing a non-volatile counter using non-volatile memory

#29
20180226976
2018-08-09

Control system and pulse output device

#30
20180120364
2018-05-03

Digital frequency measuring apparatus

#31
20170366188
2017-12-21

Apparatuses with an embedded combination logic circuit for high speed operations

#32
20170288677
2017-10-05

Clock signal stop detection circuit

#33
20170041006
2017-02-09

Clock signal stop detection circuit

#34
20160365857
2016-12-15

Relative timed clock gating cell

#35
20160308536
2016-10-20

Multi-modulus divider with power-of-2 boundary condition support

#36
20160294396
2016-10-06

Dynamic prescaling for performance counters

#37
20160258990
2016-09-08

Counter enhancements for improved performance and ease-of-use

#38
20160065219
2016-03-03

Dynamic prescaling for performance counters

#39
20150358023
2015-12-10

Counter

#40
20150030117
2015-01-29

Shift frequency divider circuit

#41
20150012577
2015-01-08

Signal processing device and method

#42
20140328466
2014-11-06

Detection apparatus for detecting photons taking pile-up events into account

#43
20140098927
2014-04-10

Method and apparatus for detecting cut-off frequency of pulse signal

#44
20130223583
2013-08-29

Digital counter and method for measuring a period of time

#45
20130136158
2013-05-30

Control circuitry

#46
20080247500
2008-10-09

If Counting Method

#47
20080191774
2008-08-14

Clock Circuit

#48
20080165913
2008-07-10

Detection of a digital counter malfunction

#49
20070182463
2007-08-09

Area efficient programmable frequency divider

#50
20070052561
2007-03-08

Conversion clock randomization for EMI immunity in temperature sensors

#51
20050212570
2005-09-29

Programmable frequency divider

#52
20050089132
2005-04-28

Digital counter

#53
18596366
2025-11-25

LFPS pulse detection using unit interval adjustment based on average pulse width

#54
18509910
2025-03-11

Apparatus and method for wideband multi-phase clock generation

#55
17512682
2022-11-01

Apparatus, system, and method for achieving accurate insertion counts on removable modules

#56
16951748
2022-03-08

System comprising a slave module and a master module

#57
15215619
2017-11-21

Mitigation of long wake-up delay of a crystal oscillator

#58
15184077
2017-09-12

Apparatuses with an embedded combination logic circuit for high speed operations

#59
14852012
2017-05-23

One wire parasite power switch control circuit