MULTI-MODE RFID READER ARCHITECTURE
First Claim
1. A multi-mode radio frequency identification (RFID) reader comprises:
- a baseband processing module coupled to;
convert outbound data into outbound modulation information; and
convert an encoded inbound signal into inbound data;
a transmitter section coupled to convert the outbound modulation information into an up-converted outbound signal;
a far field antenna structure;
a near field coil structure;
a transmit multiplexer coupled to output the up-converted outbound signal to the near field coil structure when the multi-mode RFID reader is in a near field mode and to output the up-converted outbound signal to the far field antenna structure when the multi-mode RFID reader is in a far field mode;
a receive multiplexer coupled to input an inbound signal from the near field coil structure when the multi-mode RFID reader is in the near field mode and to input the inbound signal from the far field antenna structure when the multi-mode RFID reader is in the far field mode; and
a receiver section coupled to down-convert the inbound signal into the encoded inbound signal.
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Accused Products
Abstract
A multi-mode RFID reader operates in both far field mode and near field mode. The multi-mode RFID reader includes a transmitter section, a receiver section, a transmit multiplexer and a receive multiplexer. Both the transmit multiplexer and the receive multiplexer are configurably coupled to a far field antenna structure and a near field coil structure. For far field operation, the transmit multiplexer provides an up-converted outbound signal to a far field antenna structure and the receive multiplexer provides an inbound signal to a receiver section. For near field operation, the transmit multiplexer provides an up-converted outbound signal to the near field coil structure and the receive multiplexer provides an inbound signal to the receiver section.
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Citations
25 Claims
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1. A multi-mode radio frequency identification (RFID) reader comprises:
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a baseband processing module coupled to; convert outbound data into outbound modulation information; and convert an encoded inbound signal into inbound data; a transmitter section coupled to convert the outbound modulation information into an up-converted outbound signal; a far field antenna structure; a near field coil structure; a transmit multiplexer coupled to output the up-converted outbound signal to the near field coil structure when the multi-mode RFID reader is in a near field mode and to output the up-converted outbound signal to the far field antenna structure when the multi-mode RFID reader is in a far field mode; a receive multiplexer coupled to input an inbound signal from the near field coil structure when the multi-mode RFID reader is in the near field mode and to input the inbound signal from the far field antenna structure when the multi-mode RFID reader is in the far field mode; and a receiver section coupled to down-convert the inbound signal into the encoded inbound signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An radio frequency identification (RFID) reader, comprising:
a baseband processing module operable to; convert outbound data into outbound encoded data; and convert the outbound encoded data into outbound modulation information;
a transmitter section operable to convert the outbound modulation information into an up-converted outbound signal; and
a transmit multiplexer operable to;couple the up-converted outbound signal to a near field coil antenna structure for inductive coupling to one or more tags in a near field mode; and couple the up-converted outbound signal to a far field antenna structure for RF radio frequency (RF) coupling to the one or more tags in a far field mode. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
Specification