Character recognition

Introduced: January 2022

Full Title

Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition > Character recognition

Classification Context

Section:: PHYSICS
Class:: COMPUTING OR CALCULATING; COUNTING
Subclass:: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING

Additional Content

digital ink (also referred to as electronic ink or e-ink) digital ink electronic ink e-ink Technology that digitally represents handwriting, e.g. using a finger or a stylus, in its natural form using temporal information. Digital ink may also be referred to as electronic ink or e-ink.

Related Keywords

recognition of CHARACTERS

13 direct subcodes

Child Classifications

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G06V 30/12 Detection or correction of errors, e.g. by rescanning the pattern
G06V 30/14 Image acquisition
G06V 30/16 Image preprocessing
G06V 30/18 Extraction of features or characteristics of the image
G06V 30/19 Recognition using electronic means
G06V 30/199 Arrangements for recognition using optical reference masks, e.g. holographic masks
G06V 30/2 Combination of acquisition, preprocessing or recognition functions
G06V 30/22 characterised by the type of writing
G06V 30/24 characterised by the processing or recognition method
G06V 30/26 Techniques for post-processing, e.g. correcting the recognition result
G06V 30/28 specially adapted to the type of the alphabet, e.g. Latin alphabet
G06V 30/3 based on the type of data
G06V 30/32 Digital ink

Top Applicants

Top 10 applicants by patent filingsfor 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