发明名称 |
Transmission apparatus and remotely identifying an electronically coded article |
摘要 |
An apparatus, and a concomitant method of operation for the apparatus, for responding to an interrogation signal transmitted by a remotely located interrogator comprises: a demodulator for demodulating the interrogation signal; a signal processor, coupled to the demodulator, for interpreting a set up instruction contained in the interrogation signal and for initiating a counter to count cycles of a carrier wave signal contained in the interrogation signal; and a modulator, coupled to the signal processor, for transmitting a pulse when the signal processor indicates that the counter has attained a count value that matches a codeword stored in the signal processor. <IMAGE> |
申请公布号 |
EP0890928(A3) |
申请公布日期 |
2001.06.13 |
申请号 |
EP19980305269 |
申请日期 |
1998.07.02 |
申请人 |
SARNOFF CORPORATION;SECOM CO, LTD. |
发明人 |
SCHEPPS, JONATHAN LLOYD;JOHNSON, HENRY CHARLES;LIN, MIN-LONG |
分类号 |
G06K19/07;G07C9/00 |
主分类号 |
G06K19/07 |
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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