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DIFF Subgroup
H04N 13/388

Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume

Introduced: January 2018

Full Title

Full titles differ between systems:

IPC:

Stereoscopic video systems; Multi-view video systems; Details thereof > Image reproducers > Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume

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) > Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 2018.

Child Classifications

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  • H04N 13/39 the picture elements emitting light at places where a pair of light beams intersect in a transparent material since 2018 IPC+CPC Available in IPC and CPC
  • H04N 13/393 the volume being generated by a moving, e.g. vibrating or rotating, surface since 2018 IPC+CPC Available in IPC and CPC
  • H04N 13/395 with depth sampling, i.e. the volume being constructed from a stack or sequence of two-dimensional [2D] image planes since 2018 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

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

Top Applicants (CPC)

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

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