Notice that they also bought Schaft. That's significant. Schaft has better actuator technology; electrical, rather than hydraulic. They built a very nice humanoid robot a few years ago.
As I wrote last year when BD came up, the guy behind BigDog was Dr. Martin Buehler, who previously had an ambulatory robotics lab at McGill, and whose group built the first good running robot quadruped.[1] He's at Disney now. Raibert was primarily responsible for the hydraulics; his name is on the patent for that. But unless SoftBank wants to build giant mecha, hydraulic systems are too bulky. Also, Raibert is 68 now.
When Google bought both companies, I thought they'd put Boston Dynamics control algorithms on Schaft hardware. That did not happen, as far as anyone on the outside can tell.
As I wrote last year when BD came up, the guy behind BigDog was Dr. Martin Buehler, who previously had an ambulatory robotics lab at McGill, and whose group built the first good running robot quadruped.[1] He's at Disney now. Raibert was primarily responsible for the hydraulics; his name is on the patent for that. But unless SoftBank wants to build giant mecha, hydraulic systems are too bulky. Also, Raibert is 68 now.
When Google bought both companies, I thought they'd put Boston Dynamics control algorithms on Schaft hardware. That did not happen, as far as anyone on the outside can tell.
[1] https://news.ycombinator.com/item?id=11307168