ClassID:

229931

H04N9/3123 - CPC Classification

Classification description:

Details of colour television systems; Picture reproducers; Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators; Driving therefor using pulse width modulation

Recent Application in this class:
#1
20260135978
2026-05-14

PULSE WIDTH MODULATION SEQUENCING IN LIGHT PROJECTION SYSTEMS USING LIGHT-RECYCLING COLOR FILTERS

#2
20260106957
2026-04-16

PROJECTION DEVICE AND CONTROL METHOD THEREOF

#3
20260075168
2026-03-12

PULSE WIDTH MODULATION SEQUENCING IN LIGHT PROJECTION SYSTEMS USING LIGHT- RECYCLING COLOR FILTERS

#4
20260059077
2026-02-26

LASER PROJECTION APPARATUS AND IMAGE DISPLAY METHOD THEREFOR

#5
20250301107
2025-09-25

PROJECTION DEVICE AND METHOD FOR DRIVING LIGHT SOURCE OF PROJECTION DEVICE

#6
20250203049
2025-06-19

PROJECTION DEVICE AND PROJECTION METHOD

#7
20250142028
2025-05-01

OVERLAPPING IMAGE FIELD UPDATES IN A DISPLAY SYSTEM

#8
20250142027
2025-05-01

PROJECTION DEVICE AND LIGHT SOURCE SYSTEM THEREOF

#9
20240098229
2024-03-21

Systems and methods for local dimming in multi-modulation displays

#10
20230188686
2023-06-15

Systems and methods for local dimming in multi-modulation displays

#11
20220201258
2022-06-23

Method and device for projecting a pattern of interest on a modified retinal area of a human eye

#12
20220103793
2022-03-31

Cinema projection method and system

#13
20210084265
2021-03-18

Semiconductor light source driving device and projection image display device

#14
20210047061
2021-02-18

Systems and methods for local dimming in multi-modulation displays

#15
20210035491
2021-02-04

Circuit device, light source device, and electronic apparatus

#16
20200404227
2020-12-24

Projection device and photo coupler circuit for the same

#17
20200397222
2020-12-24

Fluorescence imaging in a light deficient environment

#18
20200374494
2020-11-26

Light emission control device, light source device, and projection-type video display device

#19
20200228768
2020-07-16

Projector for projecting images

#20
20190320150
2019-10-17

Display apparatus

#21
20190260975
2019-08-22

Control of light spreading with blurring element in projector systems

#22
20190235371
2019-08-01

Projector and method for controlling projector

#23
20190052850
2019-02-14

Projection apparatus, control method, and storage medium

#24
20180295330
2018-10-11

Systems and methods for local dimming in multi-modulation displays

#25
20180295329
2018-10-11

Control of light spreading with blurring element in projector systems

#26
20180203339
2018-07-19

RGB projector with multi-laser broadband light source and system for dynamically controlling image contrast ratio

#27
20180199014
2018-07-12

Methods and apparatus for shallow gradient artifact reduction in image display systems

#28
20180192013
2018-07-05

IMAGE DISPLAY DEVICE AND IMAGE DISPLAY METHOD

#29
20180070064
2018-03-08

Systems and methods for light field modeling techniques for multi-modulation displays

#30
20170310937
2017-10-26

Projection apparatus, method of controlling projection apparatus, and projection system

#31
20170280119
2017-09-28

Reduced blend artifacts in a multiple digital projector system

#32
20170277028
2017-09-28

Digital light projector having invisible light channel

#33
20170180687
2017-06-22

Display panel, display device as well as control method and preparation method thereof

#34
20170171522
2017-06-15

Systems and methods for light field modeling techniques for multi-modulation displays

#35
20160301898
2016-10-13

Scanning projectors that use multiple pulses per pixel period to reduce color shifts, and methods and controllers for use therewith

#36
20160286178
2016-09-29

Systems and methods for local dimming in multi-modulation displays

#37
20160278189
2016-09-22

Discharge lamp driving device, projector, and discharge lamp driving method

#38
20160270197
2016-09-15

Discharge lamp driving device, projector, and discharge lamp driving method

#39
20160249440
2016-08-25

Discharge lamp driving device, projector, and discharge lamp driving method

#40
20160198133
2016-07-07

SYSTEM, METHOD, AND APPARATUS FOR DISPLAYING AN IMAGE WITH REDUCED COLOR BREAKUP

#41
20160191880
2016-06-30

Systems and methods for light field modeling techniques for multi-modulation displays

#42
20160173839
2016-06-16

PROJECTOR

#43
20160077367
2016-03-17

System and method for pulse-width modulating a phase-only spatial light modulator

#44
20140375670
2014-12-25

FIELD SEQUENTIAL COLOR ENCODING FOR DISPLAYS

#45
20130222443
2013-08-29

Optically addressed gray scale electric charge-accumulating spatial light modulator

#46
20120218323
2012-08-30

Mitigation of artifacts in PWM illumination imaging

#47
20120038892
2012-02-16

Light source control for projector with multiple pulse-width modulated light sources

#48
20110193894
2011-08-11

Pulse width modulation algorithm

#49
20110193648
2011-08-11

Pulse width modulation with effective high duty resolution

#50
20110128312
2011-06-02

Pulse width modulation signal generating device, image display apparatus including pulse width modulation signal generating device, and pulse width modulation signal generating method

#51
20110115989
2011-05-19

Display device with pulsed light source

#52
20100295866
2010-11-25

Reducing image artifacts in a color sequential display system

#53
20100201654
2010-08-12

ELECTRO-OPTICAL APPARATUS, METHOD OF DRIVING THE SAME, AND ELECTRONIC DEVICE

#54
20100091040
2010-04-15

Mitigation of temporal PWM artifacts

#55
20100073568
2010-03-25

Field sequential color encoding for displays

#56
20100053477
2010-03-04

Spatial light modulator sub-pixel architecture and method

#57
20100039568
2010-02-18

Digital cinema anti-camcording method and apparatus based on image frame post-sampling

#58
20090310633
2009-12-17

Pulse width modulation signal generating device, image display apparatus including pulse width modulation signal generating device, and pulse width modulation signal generating method

#59
20090219279
2009-09-03

Driving method of memory access

#60
20090207324
2009-08-20

Circuit for SLM's pixel

#61
20090201236
2009-08-13

Deformable micromirror device

#62
20090190045
2009-07-30

Color display apparatus

#63
20090167193
2009-07-02

IMAGE-PROCESSING EQUIPMENTS, IMAGE-PROCESSING METHOD, PROGRAM, AND RECORDING MEDIUM

#64
20090147154
2009-06-11

Color display system

#65
20090128786
2009-05-21

IMAGING SYSTEM WITH A MICROELECTROMECHANICAL LIGHT VALVE

#66
20090128588
2009-05-21

Color display system

#67
20090102988
2009-04-23

Projection device provided with semiconductor light source

#68
20090058875
2009-03-05

Digital light processing display device

#69
20090051712
2009-02-26

Projection apparatus using variable light source

#70
20090015530
2009-01-15

Optically addressed gray scale electric charge-accumulating spatial light modulator

#71
20080291403
2008-11-27

IMAGE PROJECTION APPARATUS AND OPERATION METHOD THEREOF

#72
20080259008
2008-10-23

Deformable micromirror device

#73
20080247032
2008-10-09

Pulse width modulation algorithm

#74
20080246891
2008-10-09

Pulse width modulation algorithm

#75
20080218438
2008-09-11

Deformable micromirror device

#76
20080198442
2008-08-21

Contrast with fast response light source

#77
20080158442
2008-07-03

Deformable micromirror device

#78
20080074561
2008-03-27

Method for reducing temporal artifacts in digital video systems

#79
20080018983
2008-01-24

Color display system for reducing a false color between each color pixel

#80
20080007662
2008-01-10

Projector

#81
20070258312
2007-11-08

Memory Cell Array with Multiple Drivers

#82
20070236770
2007-10-11

Display system timing control method

#83
20070064008
2007-03-22

Image display system and method

#84
20060232717
2006-10-19

Video image display method and display panel using it

#85
20060215121
2006-09-28

System and method for projecting video onto a screen

#86
20060203134
2006-09-14

Pulse width modulated display with equalized pulse width segments

#87
20060192923
2006-08-31

Method for controlling a lighting device

#88
20060187519
2006-08-24

Display system with clock dropping

#89
20060158622
2006-07-20

Single walled carbon nanotube doped microdisplay for projection display systems

#90
20060158465
2006-07-20

Illumination modulation technique for microdisplays

#91
20060158405
2006-07-20

Progressive data delivery to spatial light modulators

#92
20060132722
2006-06-22

Projection system or lighting device

#93
20060132721
2006-06-22

Single light valve projection device and method for projecting images

#94
20060132510
2006-06-22

Illumination modulation technique

#95
20060082601
2006-04-20

Sequential multi-segment pulse width modulated display system

#96
20050162571
2005-07-28

Method to correct non-periodic index event time-of-arrival data in a synchronization system

#97
20050030609
2005-02-10

Supplemental reset pulse

#98
20050030400
2005-02-10

Image display device

#99
20050024390
2005-02-03

Video signal processing circuit, display apparatus and video signal processing method

#100
16020803
2020-01-21

Low power pulse width modulation by controlling bits order

#101
15351308
2018-03-27

Methods and apparatus for shallow gradient artifact reduction in image display systems

#102
13544706
2016-03-22

Rotation of a micro-mirror device in a projection and camera system