Here is a news release that mentions some things of the internals of the cameras, which they says uses a HC3 sensor chip :(.
http://techon.nikkeibp.co.jp/english...060720/119306/
http://techon.nikkeibp.co.jp/english...FD=-1843757513
http://techon.nikkeibp.co.jp/english...FD=-1308477976
Seems to indicate that it uses a Sony LSI rather than a Ambarella codec chip I thought it might have. I can't quiet make out the model name and number of the chips in the photograph, probably could with some image restoration techniques.