发明授权
- 专利标题: Terminal for contactless communication with portable objects
- 专利标题(中): 终端用于与便携式对象进行非接触式通信
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申请号: US562126申请日: 1995-11-22
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公开(公告)号: US5670941A公开(公告)日: 1997-09-23
- 发明人: Gregory Mardinian , Frederic Wehowski
- 申请人: Gregory Mardinian , Frederic Wehowski
- 申请人地址: FRX Paris
- 专利权人: Innovatron Industries, Societe Anonyme
- 当前专利权人: Innovatron Industries, Societe Anonyme
- 当前专利权人地址: FRX Paris
- 优先权: FRX9413954 19941122
- 主分类号: H04B5/00
- IPC分类号: H04B5/00 ; G06K7/00 ; G08B13/24
摘要:
A terminal for contactless communication with portable objects comprises a wave pickup device responsive to the magnetic component of an electromagnetic field, and a receiver which cooperates with the wave pickup device to receive and amplify signals picked up thereby. The wave pickup device comprises at least two distinct and adjacently disposed wave pickup elements spaced apart by a predetermined gap, and a discriminator for deriving a discrimination signal from the signals picked up by each of the wave pickup elements during a given period. The discrimination signal indicates which one of the wave pickup elements has received a signal of greater amplitude.
公开/授权文献
- US4546605A Heat exchange system 公开/授权日:1985-10-15
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