IPC Subgroup
H04N 19/5 using predictive coding
Introduced: January 2014
Full Title
Methods or arrangements for coding, decoding, compressing or decompressing digital video signals > using predictive coding
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- PICTORIAL COMMUNICATION, e.g. TELEVISION
Additional Content
Transform coding (constitutes a significant non trivial detail) used in combination with predictive coding
5 direct subcodes
Child Classifications
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- H04N 19/503 involving temporal prediction
- H04N 19/587 involving temporal sub-sampling or interpolation, e.g. decimation or subsequent interpolation of pictures in a video sequence
- H04N 19/59 involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
- H04N 19/593 involving spatial prediction techniques
- H04N 19/597 specially adapted for multi-view video sequence encoding
Top Applicants
Top 10 applicants by patent filingsfor 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