Image coding (bandwidth or redundancy reduction for static pictures H04N1/41; coding or decoding of static colour picture signals H04N1/64; methods or arrangements for coding, decoding, compressing or decompressing digital video signals H04N19/00)

Introduced: January 1995

Title

Titles differ between systems:

IPC: Image coding

CPC: Image coding (bandwidth or redundancy reduction for static pictures H04N1/41; coding or decoding of static colour picture signals H04N1/64; methods or arrangements for coding, decoding, compressing or decompressing digital video signals H04N19/00)

Full Title

Full titles differ between systems:

IPC:

Image coding

CPC:

Image coding (bandwidth or redundancy reduction for static pictures H04N1/41; coding or decoding of static colour picture signals H04N1/64; methods or arrangements for coding, decoding, compressing or decompressing digital video signals H04N19/00)

Additional Content IPC

Bandwidth or redundancy reduction for static pictures Coding or decoding of static colour picture signals Methods or arrangements for coding, decoding, compressing or decompressing digital video signals

CPC subdivides this area 4x more granularly than IPC with 6 additional codes.

6 codes are CPC-only extensions.

IPC defines codes here since 1995.

Child Classifications

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G06T 9/001 CPC only CPC only
G06T 9/002 CPC only CPC only
G06T 9/004 CPC only CPC only
G06T 9/005 CPC only CPC only
G06T 9/007 CPC only CPC only
G06T 9/008 CPC only CPC only
G06T 9/20 Contour coding, e.g. using detection of edges since 1995 IPC+CPC Available in IPC and CPC
G06T 9/40 Tree coding, e.g. quadtree, octree since 1995 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class G06,2013–2023, worldwide · Source: EPO PATSTAT

SAMSUNG ELECTRONICS COMPANY KR 66,669
IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 62,313
MICROSOFT TECHNOLOGY LICENSING US 41,918
GOOGLE US 32,969
SGCC(STATE GRID CORPORATION OF CHINA) 30,822
INTEL CORPORATION US 30,010
TENCENT TECHNOLOGY (SHENZHEN) COMPANY 28,235
HUAWEI TECHNOLOGIES COMPANY CN 26,079
APPLE US 21,891
HUAWEI TECHNOLOGIES COMPANY 20,505

Top Applicants (CPC)

Class G06,2013–2023, worldwide · Source: EPO PATSTAT

SAMSUNG ELECTRONICS COMPANY KR 76,952
IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 62,841
MICROSOFT TECHNOLOGY LICENSING US 44,778
GOOGLE US 35,735
INTEL CORPORATION US 32,087
HUAWEI TECHNOLOGIES COMPANY CN 30,572
TENCENT TECHNOLOGY (SHENZHEN) COMPANY 25,023
APPLE US 23,482
SGCC(STATE GRID CORPORATION OF CHINA) 22,548
HUAWEI TECHNOLOGIES COMPANY 20,917