H03M11/20 - CPC Classification Index

#1

20220171472

2022-06-02

Key scanning method and input device implemented therewith

#2

20210271386

2021-09-02

Method for setting layout for physical keyboard by electronic device, and device therefor

#3

20210266012

2021-08-26

Key scanning method, scan method for key scan circuit, and input device implemented therewith

#4

20210096658

2021-04-01

Method for scanning keyboard circuit

#5

20200310554

2020-10-01

Keyboard scanning circuit and control method thereof

#6

20190243466

2019-08-08

Keyboard device

#7

20190074848

2019-03-07

KEYBOARD APPARATUS

#8

20180212620

2018-07-26

Amending circuit of correcting bouncing misjudgment of a keyswitch

#9

20180120951

2018-05-03

Keyboard device

#10

20170346488

2017-11-30

Capacitive keyboard

#11

20170338816

2017-11-23

CAPACITIVE KEYBOARD

#12

20170316899

2017-11-02

Touch control keyboard

#13

20170168588

2017-06-15

Electronic apparatus and method for detecting status of keys thereof

#14

20170141792

2017-05-18

SWITCH-SCANNING CIRCUIT AND METHOD THEREOF

#15

20170099065

2017-04-06

SCAN METHOD FOR KEYBOARDS

#16

20170063393

2017-03-02

APPARATUS AND METHOD FOR CRYPTOGRAPHIC OPERATIONS USING ENHANCED KNOWLEDGE FACTOR CREDENTIALS

#17

20170054450

2017-02-23

Keyboard scanning circuit, keyboard and scanning method thereof

#18

20160380628

2016-12-29

Keyboard Assembly

#19

20160226521

2016-08-04

Touch keypad with key scanning

#20

20160013806

2016-01-14

Method for determining active input elements of an input arrangement and input arrangement

#21

20150268286

2015-09-24

Matrix key input interface

#22

20150057772

2015-02-26

Input device providing control information to host device

#23

20140285365

2014-09-25

Method and device for managing a key matrix, corresponding computer program product and storage device

#24

20140085263

2014-03-27

Capacitive touch sensors

#25

20130293399

2013-11-07

Ultra-low power wakeup circuit device

#26

20130249714

2013-09-26

KEYPAD MODULE AND DETECTING METHOD FOR KEYPAD MATRIX

#27

20130162452

2013-06-27

Apparatus for performing key control with reduced key matrix pin count

#28

20130076541

2013-03-28

Apparatus and scanning method for key input apparatus

#29

20120262376

2012-10-18

Membrane keyboard scan circuit, scan method and keyboard having the same

#30

20120229412

2012-09-13

Touch Position Detection Method and Apparatus

#31

20120162085

2012-06-28

Methods and apparatus for efficient illumination of individual keys in a keyboard

#32

20110316725

2011-12-29

SCANNING CIRCUIT AND METHOD FOR KEYBOARD

#33

20110309956

2011-12-22

Low power sensing via resistive sensor matrix

#34

20110239206

2011-09-29

Keyboard definition updating method and computer system

#35

20110234528

2011-09-29

Sample and hold capacitance to digital converter

#36

20110175757

2011-07-21

APPARATUS AND METHOD FOR IMPROVING KEY SCAN PERFORMANCE USING INVERTER CIRCUIT IN PORTABLE TERMINAL

#37

20110122001

2011-05-26

Scanning circuit and scanning method for keyboard

#38

20110106985

2011-05-05

Input device

#39

20110050465

2011-03-03

Scanning circuit and scanning method for keyboard

#40

20110004711

2011-01-06

Keypad de-bouncing apparatus and method

#41

20100309029

2010-12-09

Efficiently embedding information onto a keyboard membrane

#42

20100295564

2010-11-25

Capacitive sensing with combinatorial sensor layout

#43

20100277348

2010-11-04

Mobile phone with improved keyboard scanning and component reduction and method

#44

20100271310

2010-10-28

Detecting key actuation in a keyboard

#45

20100259424

2010-10-14

Power saving method in sleep mode and keyboard controller using the same

#46

20100148998

2010-06-17

Keyboard scanning circuit

#47

20100096193

2010-04-22

Capacitive touch sensors

#48

20100066572

2010-03-18

RESISTIVE SWITCH MATRIX

#49

20100066567

2010-03-18

RESISTIVE SWITCH MATRIX

#50

20100060490

2010-03-11

Circuit arrangement and method for the operation of a circuit arrangement

#51

20100052952

2010-03-04

Key scanning circuit

#52

20100049882

2010-02-25

Hotkey processing method and computer system

#53

20090267809

2009-10-29

Method and apparatus for high performance key detection with key debounce

#54

20090248925

2009-10-01

Methods and systems of scanning an input device having multiple key switches

#55

20090237277

2009-09-24

Keyboard device and method of identifying a key operation

#56

20090128373

2009-05-21

TWIN-CONTACT KEYBOARD ARRANGEMENT

#57

20090125651

2009-05-14

Keypad de-bouncing apparatus and method

#58

20090106462

2009-04-23

Method and circuit for capturing keypad data serializing/deserializing and regenerating the keypad interface

#59

20090027237

2009-01-29

KEY SYSTEM AND METHOD CAPABLE OF DETECTING IF A PLURALITY OF KEYS ARE TRIGGERED

#60

20090027236

2009-01-29

Method for detecting and processing key scan codes of computer keyboard

#61

20090021399

2009-01-22

Increasing the Number of Keys Supported by a Keyboard Controller

#62

20090002204

2009-01-01

INFORMATION PROCESSING DEVICE AND CONTROL METHOD OF THE SAME

#63

20080316067

2008-12-25

Keyboard scan

#64

20080316066

2008-12-25

Key control circuit, electronic apparatus, portable device, and key control method

#65

20080283309

2008-11-20

Input device using touch manner

#66

20080252493

2008-10-16

Method of setting specific scan codes for manual input device

#67

20080238728

2008-10-02

ELECTRONIC APPARATUS AND KEY PRESSING DETERMINATION METHOD

#68

20080218482

2008-09-11

Input apparatus

#69

20080111712

2008-05-15

Method and apparatus for keyboard readout

#70

20080079611

2008-04-03

Key input device and key scan method

#71

20080079610

2008-04-03

Key system with two operation nodes for detecting status of keys

#72

20080074294

2008-03-27

SYSTEM FOR CONTROLLING KEYBOARD

#73

20080034124

2008-02-07

Apparatus and method for using expansion key in portable terminal

#74

20070290889

2007-12-20

Two-wire connection to a key matrix in a mobile device

#75

20070241939

2007-10-18

Projection apparatus and key input device thereof

#76

20070216543

2007-09-20

Method and apparatus for high performance key detection with key debounce

#77

20070182596

2007-08-09

Key Construction Method For A Keyboard and The Keyboard Thereof

#78

20070159363

2007-07-12

Self-scan programmable keypad interface

#79

20070115147

2007-05-24

Key scan type input device

#80

20070096949

2007-05-03

Method and apparatus for scanning a key or button matrix

#81

20070040806

2007-02-22

Keypad

#82

20070025793

2007-02-01

Input device

#83

20060284742

2006-12-21

Detecting key actuation in a keyboard

#84

20060132331

2006-06-22

Apparatus and method for decoding a key press

#85

20060114130

2006-06-01

Keypad circuit with electrostatic discharge protection

#86

20060103558

2006-05-18

Multiplexing

#87

20060082473

2006-04-20

Apparatus and method for detecting key signals in a mobile communication terminal

#88

20060068771

2006-03-30

Method and apparatus for high performance key detection with key debounce

#89

20060066577

2006-03-30

Input keyboard with increased number of keys for an electronic device with a limited number of connecting pins

#90

20060053391

2006-03-09

Method, apparatus, and computer-readable medium for key press determination

#91

20060049965

2006-03-09

Method and apparatus for keyboard control with programmable debounce and jog

#92

20060007023

2006-01-12

Method and apparatus for scanning a key or button matrix

#93

20050179566

2005-08-18

Method and a device for reading out keyboard keys

#94

20050062618

2005-03-24

Keypad array having reduced number of input/outputs and method for generating same

#95

17349333

2022-04-05

System, apparatus, and method for controlling an electronic device