Image reproducers (optical systems for producing stereoscopic or other three-dimensional [3D] effects G02B30/00)

Introduced: January 2018

Title

Titles differ between systems:

IPC: Image reproducers

CPC: Image reproducers (optical systems for producing stereoscopic or other three-dimensional [3D] effects G02B30/00)

Full Title

Full titles differ between systems:

IPC:

Stereoscopic video systems; Multi-view video systems; Details thereof > Image reproducers

CPC:

Stereoscopic video systems; Multi-view video systems; Details thereof > Image reproducers (optical systems for producing stereoscopic or other three-dimensional [3D] effects G02B30/00)

Additional Content IPC

Optical systems for producing stereoscopic or other three-dimensional effects

Of 15 combined children, 14 exist in both systems.

1 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

3 shared codes have differing titles between IPC and CPC.

Child Classifications

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H04N 13/302 for viewing without the aid of special glasses, i.e. using autostereoscopic displays since 2018 IPC+CPC Available in IPC and CPC
H04N 13/324 Colour aspects since 2018 IPC+CPC Available in IPC and CPC
H04N 13/327 Calibration thereof since 2018 IPC+CPC Available in IPC and CPC
H04N 13/332 Displays for viewing with the aid of special glasses or head-mounted displays [HMD] since 2018 IPC+CPC Available in IPC and CPC
H04N 13/346 using prisms or semi-transparent mirrors since 2018 IPC+CPC Available in IPC and CPC
H04N 13/349 Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking (for viewing without the aid of special glasses using fly-eye lenses H04N13/307) since 2018 IPC+CPC Available in IPC and CPC
H04N 13/356 having separate monoscopic and stereoscopic modes since 2018 IPC+CPC Available in IPC and CPC
H04N 13/361 Reproducing mixed stereoscopic images; Reproducing mixed monoscopic and stereoscopic images, e.g. a stereoscopic image overlay window on a monoscopic image background since 2018 IPC+CPC Available in IPC and CPC
H04N 13/363 using image projection screens (volumetric display H04N13/388) since 2018 IPC+CPC Available in IPC and CPC
H04N 13/365 using digital micromirror devices [DMD] since 2018 IPC+CPC Available in IPC and CPC
H04N 13/366 using viewer tracking since 2018 IPC+CPC Available in IPC and CPC
H04N 13/385 alternating rapidly the location of the left-right image components on the display screens (for viewing without the aid of special glasses using time variant parallax barriers H04N13/315; displays for viewing with the aid of special glasses or head-mounted displays using temporal multiplexing H04N13/341) since 2018 IPC+CPC Available in IPC and CPC
H04N 13/388 Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume since 2018 IPC+CPC Available in IPC and CPC
H04N 13/398 Synchronisation thereof; Control thereof since 2018 IPC+CPC Available in IPC and CPC
H04N 2013/40 2nd only +2 CPC CPC only CPC only

Top Applicants

Top Applicants (IPC)

Class H04,2013–2023, worldwide · Source: EPO PATSTAT

QUALCOMM US 97,396
HUAWEI TECHNOLOGIES COMPANY CN 96,502
SAMSUNG ELECTRONICS COMPANY KR 86,981
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
HUAWEI TECHNOLOGIES COMPANY 55,349
LG ELECTRONICS KR 53,649
CANON 33,341
SONY CORPORATION JP 32,761
ZTE CORPORATION CN 32,274
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327

Top Applicants (CPC)

Class H04,2013–2023, worldwide · Source: EPO PATSTAT

HUAWEI TECHNOLOGIES COMPANY CN 101,476
QUALCOMM US 101,139
SAMSUNG ELECTRONICS COMPANY KR 96,655
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
LG ELECTRONICS KR 55,253
HUAWEI TECHNOLOGIES COMPANY 54,181
SONY CORPORATION JP 35,309
ZTE CORPORATION CN 32,950
INTEL CORPORATION US 27,533
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498