H03M11/22 - CPC Classification Index

ClassID:

222700 ⎘

H03M11/22 - CPC Classification

Classification description:

Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys Static coding

Sub-classes:

H03M11/24 » using analogue means 45

Recent Application in this class:

20130308247

2013-11-21

METHOD AND APPARATUS FOR TESTING CIRCUIT BOARD

20130234944

2013-09-12

CIRCUIT AND ASSOCIATED METHOD IDENTIFYING KEYS AND IMPLEMENTING KEYPAD

20120262311

2012-10-18

Text entry device with radial keypad layout

20120248894

2012-10-04

Microcomputer system

20110241909

2011-10-06

Keypad and method of assembly of same

20110115653

2011-05-19

Key coding circuit

20100327662

2010-12-30

Microcomputer system

20100277350

2010-11-04

Group keypads in compliance with standard keyboard installation

20100271241

2010-10-28

Text entry device with radial keypad layout

#10

20100238054

2010-09-23

KEYBOARD DEVICE AND METHOD FOR IDENTIFYING DIFFERENT KEY FUNCTIONS ON THE KEYBOARD DEVICE

#11

20100127990

2010-05-27

APPARATUS AND METHOD FOR KEYPAD OF PORTABLE TERMINAL

#12

20100066571

2010-03-18

Keypad and method for identifying keystrokes of a keypad

#13

20090267651

2009-10-29

SWITCH STATE DETECTOR AND ENCODER

#14

20080218482

2008-09-11

Input apparatus

#15

20080158022

2008-07-03

BINARY KEYPAD APPARATUS AND METHOD FOR PORTABLE TERMINAL

#16

20060284741

2006-12-21

Keypad signal input apparatus

#17

20060097984

2006-05-11

Key sensor in mobile station