H04N 19/169 characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
Introduced: January 2014
Full Title
Methods or arrangements for coding, decoding, compressing or decompressing digital video signals > using adaptive coding > characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- PICTORIAL COMMUNICATION, e.g. TELEVISION
Additional Content
(Video) Object MPEG-4 object, i.e. a region of the image with arbitrary shape Slice slices A set of blocks within an image, e.g. a line of blocks. Block blocks A rectangular matrix of pixels. Macroblock macroblocks MPEG coding unit formed by four blocks arranged as a 2 x 2 matrix. Group of pictures groups of pictures MPEG coding unit formed by a set of consecutive pictures. Scalable video layer scalable video layers Coding unit of a scalable encoded video elementary stream
8 direct subcodes
Child Classifications
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- H04N 19/17 the unit being an image region, e.g. an object
- H04N 19/177 the unit being a group of pictures [GOP]
- H04N 19/179 the unit being a scene or a shot
- H04N 19/18 the unit being a set of transform coefficients
- H04N 19/182 the unit being a pixel
- H04N 19/184 the unit being bits, e.g. of the compressed video stream
- H04N 19/186 the unit being a colour or a chrominance component
- H04N 19/187 the unit being a scalable video layer
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