Robot World: Quadruped Robots

KITECH and KNR Systems Inc.

They have developed a hydraulic quadruped robot called Jinpoong, inspired by Big Dog from Boston Dynamics.

The group has written at least 6 papers that you can read on IEEE Xplore, however
each is only 2 or 3 pages long: ieeexplore.ieee.org/search/jinpoong/ (paywall)

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Video:
A demonstration compilation.