发明名称 |
TRANSMISSION AND RECEPTION SYSTEM FOR CONTROLLING LOCKING/UNLOCKING OPERATION OF KEY |
摘要 |
<p>The invention provides a transmission and reception system for controlling a locking/unlocking operation of a key which is simple in construction and does not require a large space and besides prevents a malfunction and is reduced in power dissipation. The transmission and reception system for controlling a locking/unlocking operation of a lock includes a transmission section for transmitting a control signal having a predetermined frequency for effecting locking/unlocking of the key, and a reception section for receiving the control signal and effecting driving control of the key in response to the control signal. The reception section includes a carrier detection circuit for detecting a frequency of the control signal and supplies, when the control signal is not received, power only to the carrier detection circuit.</p> |
申请公布号 |
CA2199894(A1) |
申请公布日期 |
1997.09.19 |
申请号 |
CA19972199894 |
申请日期 |
1997.03.13 |
申请人 |
SONY CORPORATION |
发明人 |
OKAYASU, YOSHISADA;MORISE, KEIJI;YAMAMOTO, HIROAKI |
分类号 |
E05B49/00;E05B65/00;E05B83/16;E05B83/36;G07C9/00;H04Q9/00;H04Q9/12;(IPC1-7):E05B47/00;G08C17/02;G08C23/04 |
主分类号 |
E05B49/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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