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    • 5. 发明专利
    • DE69918938T2
    • 2004-12-16
    • DE69918938
    • 1999-12-09
    • TOKAI RIKA CO LTD
    • WATANABE YOSHITAKAHARADA SHOICHIYAMAMOTO KEIJI
    • E05B15/08E05B17/00E05B17/10E05B17/14E05B17/18
    • An apparatus for insertion of a key (28) therein substantially prevents foreign matter from entering into a key insertion hole (22), and even if foreign matter does enter into the key insertion hole (22), discharges the foreign matter therefrom. A shutter (30) is provided within the key insertion hole (22) so as to be movable along a direction of insertion of a key (28). The shutter (30) is always urged by a compression coil spring (40) toward an opening (24) of the insertion hole (22). In a state in which no key (28) is inserted, the shutter (30) closes the insertion hole (22). The shutter (30) is provided with a reflecting surface (38), and when no key (28) is inserted in the insertion hole (22), the reflecting surface (38) reflects light from a light source (36) so as to illuminate the opening (24) of the insertion hole (22). Thus, even if a region surrounding the opening (24) of the insertion hole (22) is dark, the opening (24) can be visually confirmed and the key (28) can be easily inserted into the insertion hole (22).
    • 6. 发明专利
    • DE69918938D1
    • 2004-09-02
    • DE69918938
    • 1999-12-09
    • TOKAI RIKA CO LTD
    • WATANABE YOSHITAKAHARADA SHOICHIYAMAMOTO KEIJI
    • E05B15/08E05B17/00E05B17/10E05B17/14E05B17/18
    • An apparatus for insertion of a key (28) therein substantially prevents foreign matter from entering into a key insertion hole (22), and even if foreign matter does enter into the key insertion hole (22), discharges the foreign matter therefrom. A shutter (30) is provided within the key insertion hole (22) so as to be movable along a direction of insertion of a key (28). The shutter (30) is always urged by a compression coil spring (40) toward an opening (24) of the insertion hole (22). In a state in which no key (28) is inserted, the shutter (30) closes the insertion hole (22). The shutter (30) is provided with a reflecting surface (38), and when no key (28) is inserted in the insertion hole (22), the reflecting surface (38) reflects light from a light source (36) so as to illuminate the opening (24) of the insertion hole (22). Thus, even if a region surrounding the opening (24) of the insertion hole (22) is dark, the opening (24) can be visually confirmed and the key (28) can be easily inserted into the insertion hole (22).
    • 7. 发明专利
    • Electronic key system
    • 电子钥匙系统
    • JP2012077587A
    • 2012-04-19
    • JP2010226653
    • 2010-10-06
    • Tokai Rika Co Ltd株式会社東海理化電機製作所
    • YAMAMOTO KEIJIMORI YASUSHI
    • E05B49/00B60R25/00B60R25/01B60R25/24
    • PROBLEM TO BE SOLVED: To maintain an appropriate size of a communication area even under a noise environment in an electronic key system.SOLUTION: An RSSI measurement signal Srs transmitted from an on-vehicle device 20 to an electronic key 10 has ON time and OFF time set. In the ON time a signal level is amplified and in the OFF time a signal level is fixed at zero. An RSSI detection circuit 16 detects an RSSI of the RSSI measurement signal Srs across the ON time and OFF time in plural times. A determination unit 25 determines, based on the detection result of the RSSI detection circuit 16 (an average value Vav of each RSSI of the RSSI measurement signal Srs), that noise is applied to the RSSI measurement signal Srs. If determination is made that noise is applied, because there is no confirmation that the electronic key 10 exists in a communication area, from then on communication is not performed between the on-vehicle device 20 and the electronic key 10.
    • 要解决的问题:即使在电子钥匙系统中的噪声环境下,也保持通信区域的适当尺寸。 解决方案:从车载设备20发送到电子钥匙10的RSSI测量信号Srs设定了ON时间和OFF时间。 在接通时间,信号电平被放大,而在OFF时间,信号电平固定为零。 RSSI检测电路16多次在ON时间和OFF时间内检测RSSI测量信号Srs的RSSI。 确定单元25基于RSSI检测电路16的检测结果(RSSI测量信号Srs的每个RSSI的平均值Vav)来确定该噪声被施加到RSSI测量信号Srs。 如果确定应用了噪声,因为不存在电子钥匙10存在于通信区域中的确认,则在车载设备20和电子钥匙10之间不进行通信。

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