Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H04N 19/30

using hierarchical techniques, e.g. scalability (H04N19/63 takes precedence)

Introduced: January 2014

Title

Titles differ between systems:

IPC: using hierarchical techniques, e.g. scalability

CPC: using hierarchical techniques, e.g. scalability (H04N19/63 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Methods or arrangements for coding, decoding, compressing or decompressing digital video signals > using hierarchical techniques, e.g. scalability

CPC:

Methods or arrangements for coding, decoding, compressing or decompressing digital video signals > using hierarchical techniques, e.g. scalability (H04N19/63 takes precedence)

Of 7 combined children, 6 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 2014.

Child Classifications

Navigate with arrow keys, Enter to open

  • H04N 19/31 in the temporal domain since 2014 IPC+CPC Available in IPC and CPC
  • H04N 19/33 in the spatial domain since 2014 IPC+CPC Available in IPC and CPC
  • H04N 19/34 Scalability techniques involving progressive bit-plane based encoding of the enhancement layer, e.g. fine granular scalability [FGS] since 2014 IPC+CPC Available in IPC and CPC
  • H04N 19/36 Scalability techniques involving formatting the layers as a function of picture distortion after decoding, e.g. signal-to-noise [SNR] scalability since 2014 IPC+CPC Available in IPC and CPC
  • H04N 19/37 with arrangements for assigning different transmission priorities to video input data or to video coded data since 2014 IPC+CPC Available in IPC and CPC
  • H04N 19/39 involving multiple description coding [MDC], i.e. with separate layers being structured as independently decodable descriptions of input picture data since 2014 IPC+CPC Available in IPC and CPC
  • H04N 19/395 CPC only CPC only