NEAR FIELD COMMUNICATION FRONT-END
First Claim
1. A near field radio frequency identification (RFID) reader comprises:
- a baseband module coupled to convert outbound data into an outbound symbol stream and to convert an inbound symbol stream into inbound data;
an up conversion module coupled to convert the outbound symbol stream into a plurality of outbound RFID signals based on a frequency-space encoding scheme;
a plurality of coils coupled to electromagnetically transmit the plurality of outbound RFID signals and to electromagnetically receive a plurality of inbound RFID signals in accordance with the frequency-space encoding scheme; and
a down conversion module coupled to convert the plurality of inbound RFID signals into the inbound symbol stream in accordance with the frequency-space encoding scheme.
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Accused Products
Abstract
A near field communication front-end includes an up conversion module, a plurality of coils, and a down conversion module. The up conversion module is coupled to convert an outbound symbol stream into a plurality of outbound signals based on a frequency-space encoding scheme. The plurality of coils is coupled to electromagnetically transmit the plurality of outbound signals and to electromagnetically receive a plurality of inbound signals in accordance with the frequency-space encoding scheme. The down conversion module is coupled to convert the plurality of inbound signals into an inbound symbol stream in accordance with the frequency-space encoding scheme.
61 Citations
22 Claims
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1. A near field radio frequency identification (RFID) reader comprises:
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a baseband module coupled to convert outbound data into an outbound symbol stream and to convert an inbound symbol stream into inbound data; an up conversion module coupled to convert the outbound symbol stream into a plurality of outbound RFID signals based on a frequency-space encoding scheme; a plurality of coils coupled to electromagnetically transmit the plurality of outbound RFID signals and to electromagnetically receive a plurality of inbound RFID signals in accordance with the frequency-space encoding scheme; and a down conversion module coupled to convert the plurality of inbound RFID signals into the inbound symbol stream in accordance with the frequency-space encoding scheme. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A near field communication front-end comprises:
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an up conversion module coupled to convert an outbound symbol stream into a plurality of outbound signals based on a frequency-space encoding scheme; a plurality of coils coupled to electromagnetically transmit the plurality of outbound signals and to electromagnetically receive a plurality of inbound signals in accordance with the frequency-space encoding scheme; and a down conversion module coupled to convert the plurality of inbound signals into an inbound symbol stream in accordance with the frequency-space encoding scheme. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification