发明名称 |
MOVING BODY DISCRIMINATION SYSTEM |
摘要 |
<p>PURPOSE:To realize a moving body discrimination system enabling attainment of a wide range of communication, by a circuit construction of a relatively small scale, even when a reflector of a radio wave is present in the circumference of a transponder. CONSTITUTION:An interrogator 1 is provided with a generating means 2 of a signal modulating diffusion such as spectral diffusion and an output signal thereof is sent out from a transmission antenna 3. A transponder 4 receiving the radio wave of the signal is provided with an antenna 5 for the transponder and a data modulating means 7 which executes modulation in accordance with data of a data storage means 6. A reflected wave from the antenna 5 for the transponder subjected to data modulation in response to the radio wave is received by a reception antenna 8 of the interrogator 1, a signal obtained thereby and the signal from the diffusion modulating signal generating means 2 are mixed by a mixing means 9 and data are demodulated from an output signal of this means by a data demodulating means 10.</p> |
申请公布号 |
JPH06300836(A) |
申请公布日期 |
1994.10.28 |
申请号 |
JP19930087030 |
申请日期 |
1993.04.14 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
HASEGAWA MAKOTO;MIMURA MASAHIRO;ADACHI TAKASUE;HIRABAYASHI HIROHIDE |
分类号 |
G01S13/28;G01S13/78;(IPC1-7):G01S13/78 |
主分类号 |
G01S13/28 |
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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