Invention Grant
- Patent Title: Contactless data reception using a cancellation circuit
- Patent Title (中): 使用消除电路进行非接触式数据接收
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Application No.: US12415070Application Date: 2009-03-31
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Publication No.: US08905310B2Publication Date: 2014-12-09
- Inventor: Walter Kargl , Edmund Ehrlich , Matthias Emsenhuber
- Applicant: Walter Kargl , Edmund Ehrlich , Matthias Emsenhuber
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Schiff Hardin LLP
- Main IPC: G06K7/00
- IPC: G06K7/00 ; G06K7/10 ; H04B5/00 ; G06K19/07
Abstract:
A contactless device including a transmission antenna configured to transmit a transmission signal; a pickup antenna configured to detect a field generated by a pickup signal, which comprises a response signal transmitted from another contactless device and the transmission signal; and a cancellation circuit configured to subtract a voltage of the transmission antenna from a voltage of the pickup antenna.
Public/Granted literature
- US20100243737A1 CONTACTLESS DATA RECEPTION Public/Granted day:2010-09-30
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