ClassID:

229919

H04N9/28 - CPC Classification

Classification description:

Details of colour television systems; Picture reproducers using cathode ray tubes Arrangements for convergence or focusing

Sub-classes:
Recent Application in this class:
#1
20220132080
2022-04-28

Control device, projection system, control method, and control program

#2
20190014295
2019-01-10

Projecting device

#3
20180063491
2018-03-01

Image projecting system, information processing apparatus, and method for image projecting

#4
20170264871
2017-09-14

PROJECTING DEVICE

#5
20160100095
2016-04-07

Illumination apparatus interposable during examination procedure

#6
20140247287
2014-09-04

Image processing device, projector, and image processing method

#7
20090121972
2009-05-14

CRT display having a single plane sheath beam bender and video correction

#8
20070222903
2007-09-27

Method and system for automated convergence and focus verification of projected images

#9
20070052870
2007-03-08

Method of performing convergence calibration for a display

#10
20060244869
2006-11-02

Convergence data recovering method and projection television employing the same

#11
20060176408
2006-08-10

Method of displaying video during auto-convergence

#12
20060158563
2006-07-20

Convergence compensation apparatus and convergence method for a projection television

#13
20060098125
2006-05-11

Lens systems for projection televisions

#14
20060043867
2006-03-02

Color picture tube apparatus

#15
20050259161
2005-11-24

Digital camera and manual focus method thereof

#16
20050225684
2005-10-13

Center convergence optimization in a projection display apparatus

#17
20050219426
2005-10-06

Automatic convergence for image projection systems

#18
20050219425
2005-10-06

Automatic convergence for image projection systems

#19
20050200702
2005-09-15

Optical detector of projection television

#20
20050194917
2005-09-08

Deflection device for projection tube and projection tube apparatus

#21
20050185145
2005-08-25

Convergence system for a projection display system

#22
20050179825
2005-08-18

Automatic image convergence for projection television systems

#23
20050179407
2005-08-18

Convergence control apparatus for video display

#24
20050168659
2005-08-04

Method and system for automated convergence and focus verification of projected images

#25
20050117076
2005-06-02

Restration adjuser and registration adjusting method

#26
20050110912
2005-05-26

Apparatus and method for correcting distortion of image and image displayer using the same

#27
20050073615
2005-04-07

Apparatus and method for adjusting convergence of projection television

#28
20050068466
2005-03-31

Self-correcting rear projection television

#29
20050057825
2005-03-17

Lens systems for projection televisions

#30
20050057550
2005-03-17

Video controlled detector sensitivity

#31
20050052580
2005-03-10

Apparatus and method of re-adjusting convergence of a projection TV

#32
20050041195
2005-02-24

Method and apparatus to correct lateral color shift in multi-panel projection systems

#33
20050018090
2005-01-27

Apparatus for preventing auto-convergence error in projection television receiver

#34
13455949
2015-09-08

Pose detection