发明名称 |
Electronic article surveillance and identification device, system, and method |
摘要 |
An electronic article surveillance and identification tag and system is provided. The tag couples energy from a radiated energy source, which comprises first and second radiated signals. A mixing member in the tag mixes the first and second signals to produce a sideband of the first signal, which is re-radiated by the tag. The mixing member is activated by a controller that switches the mixing member into and out of the circuit according to a code stored within the controller that is associated with an article to be identified. As the mixing member is activated and deactivated, the sideband is radiated in a sequential manner according to the stored code. A receiver detects the sideband, and a decoder recovers the stored code according to the sequence of received sideband emissions from the tag. |
申请公布号 |
AU5314501(A) |
申请公布日期 |
2001.10.15 |
申请号 |
AU20010053145 |
申请日期 |
2001.04.03 |
申请人 |
SENSORMATIC ELECTRONICS CORPORATION |
发明人 |
HUBERT A. PATTERSON;MING-REN LIAN |
分类号 |
G08C17/00;G06K7/00;G06K19/07;G08B13/22 |
主分类号 |
G08C17/00 |
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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