Hefei
China
3
2020-05-07
The entities that hold a legal rights for patent applications filed by inventor Liu Qingfeng:
Qingfeng Liu from Hefei, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
Method, apparatus and storage medium for recognizing character
#2 | 2015-12-03Speech recognition method and system based on user personalized information
#3 | 2013-08-01Method and system for endpoint automatic detection of audio record
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