An anti-entrapment system for preventing an object from being entrapped by a translating device includes a capacitance sensor positioned adjacent to the translating device. The sensor has first and second conductors separated by a separation distance, a compressible dielectric element interposed between...http://www.google.com.tw/patents/US7132642?utm_source=gb-gplus-share專利 US7132642 - Anti-entrapment systems for preventing objects from being entrapped by translating devices
