Tilt detection and stable approach methods for near field recording
Taewook Kwon, Do Hyeon Son, Bong-Sik Kwak, Jeong-Kyo Seo, In Ho Choi, Byung Hoon Min · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2009
We present advanced methods to improve the performance of the near field system. Using the RF signal, the near field system can detect a tilt error and find the best tilt condition for more wide range. The 2-step approach process can shorten the pull-in time and decrease the possibility of a collision.