Development of on-chip pattern processing in event-driven SOI pixel detector for X-ray astronomy with background rejection purpose. (1st December 2020) - Takeda, A.; Mori, K.; Nishioka, Y.; Hida, T.; Yukumoto, M.; Kanemaru, Y.; Yonemura, S.; Mieda, K.; Tsuru, T. G.; Tanaka, T.; Kurachi, I.; Arai, Y.