Rfid Reader and Rfid System
First Claim
Patent Images
1. A radio frequency identification reader comprising:
- a plurality of antennas for transmitting/receiving a radio frequency signal;
a path selector for selecting a transmit or receive path of the radio frequency signal;
a radio frequency processor for processing the radio frequency signal sent to the transmit path or receive path of the path selector; and
a controller for controlling a path selection of the path selector.
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Accused Products
Abstract
Provided are an RF reader and an RF system. The RF reader includes: a plurality of antennas; a path selector for selecting a transmit or receive path of an RF signal; an RF processor for processing the RF signal received through the transmit or receive path of the path selector; and a controller for controlling the path selector selecting a path.
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Citations
21 Claims
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1. A radio frequency identification reader comprising:
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a plurality of antennas for transmitting/receiving a radio frequency signal; a path selector for selecting a transmit or receive path of the radio frequency signal; a radio frequency processor for processing the radio frequency signal sent to the transmit path or receive path of the path selector; and a controller for controlling a path selection of the path selector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A radio frequency identification reader comprising:
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a phase shifter changing an input radio frequency signal into a first and second radio frequency signals with a first and second phases and modulating the radio frequency signals according to data; a signal selector for selecting the first or second radio frequency signal according to a modulation type; and a controller for controlling a signal output path and period of the phase shifter and signal selector. - View Dependent Claims (17, 18)
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19. The radio frequency identification system comprising:
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one or more of passive electronic tags; and an radio frequency identification reader having a plurality of antennas and communicating with the electronic tag by different modulation types according to coding formats. - View Dependent Claims (20, 21)
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Specification