Invention Grant
US07791409B2 AM (amplitude modulation) demodulation system for RFID reader device
有权
用于RFID读取器装置的AM（幅度调制）解调系统
- Patent Title: AM (amplitude modulation) demodulation system for RFID reader device
- Patent Title (中): 用于RFID读取器装置的AM（幅度调制）解调系统
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Application No.: US12274210Application Date: 2008-11-19
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Publication No.: US07791409B2Publication Date: 2010-09-07
- Inventor: Aydin Arrigo
- Applicant: Aydin Arrigo
- Applicant Address: CH
- Assignee: Datamars, S.A.
- Current Assignee: Datamars, S.A.
- Current Assignee Address: CH
- Agency: Akerman Senterfitt
- Priority: EP07024935 20071221
- Main IPC: H03D1/00
- IPC: H03D1/00 ; H03D1/08 ; H03D1/10
Abstract:
AM (Amplitude Modulation) demodulation system (36) for an RFID reader device (31), of the type comprising a demodulator (6) for receiving from a RFID tag (11) an AM (Amplitude Modulation) wave (20) having a predetermined frequency (f) and for retrieving, from the AM wave (20), a demodulated output (6a) associated to predetermined positive or negative Amplitudes of said AM wave (20). The AM demodulation system comprises at least a second demodulator (26) for receiving the AM wave (20) and retrieving a second demodulated output (26a) associated to Amplitudes opposite to the predetermined positive or negative Amplitudes and a block (27) having, in input, the demodulated output (6a) and the second demodulated output (26a) and returning, in output, an enforced demodulated output (30) with a frequency (f1) greater than the predetermined frequency (f).
Public/Granted literature
- US20090160546A1 AM (AMPLITUDE MODULATION) DEMODULATION SYSTEM FOR RFID READER DEVICE Public/Granted day:2009-06-25
Information query
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