发明名称 |
ANTENNA ASSEMBLY AND DOOR HANDLE UNIT |
摘要 |
<p>A transmission/reception antenna (21) comprises a core (31) and a coil (32) wound around the core (31). One of a plurality of core sheets (31a) constituting the core (31) is utilized as a sensor electrode (23). Conductors (33, 34) extending from the two ends of the coil (32) are connected to a transmission/reception drive circuit (22). The conductor (35) extending from a capacitance detector (24) is connected to one of the conductors (33, 34) extending between the coil (32) and the transmission/reception drive circuit (22). Consequently, the capacitance detector (24) is alternately connected to the sensor electrode (23) through a parasitic capacitance C1 generated between the coil (32) and the sensor electrode (23) (core sheet (31a)).</p> |
申请公布号 |
EP1795860(A1) |
申请公布日期 |
2007.06.13 |
申请号 |
EP20050783396 |
申请日期 |
2005.09.16 |
申请人 |
AISIN SEIKI KABUSHIKI KAISHA |
发明人 |
INABA, HISASHI;IEDA, KIYOKAZU;HATANO, RIKUO |
分类号 |
G01B7/00;B60J5/04;B60R25/01;B60R25/24;E05B1/00;E05B81/78;E05B85/16;H01Q1/32;H01Q1/44;H01Q7/06;H01Q7/08 |
主分类号 |
G01B7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|