Reader and/or writer for radio frequency ID tag
First Claim
1. An ID tag reader/writer for writing and reading data in and from one or more ID tags, comprising:
- one or more antennas configured to perform radio communication with the ID tags;
one or more analog frontend units, each unit being provided for one of the antennas, configured to generate a carrier wave based on a clock signal and to perform signal modulation and demodulation; and
a controller configure to generate and output the clock signal to the analog frontend units and select one of the analog frontend units corresponding to a target ID tag to which the data are to be transmitted, wherein the controller performs data transmission to and from each of the analog frontend units using a digital signal line.
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Accused Products
Abstract
An ID tag reader/writer for writing and reading data in and from one or more ID tags is provided. The ID tag reader/writer includes (a) one or more antennas configured to perform radio communications with the ID tags, (b) one or more analog frontend units, each unit being provided for one of the antennas, configured to generate a carrier wave based on a clock signal and to perform signal modulation and demodulation, and (c) a controller configured to generate and output the clock signal to the analog frontend units and select one of the analog frontend units corresponding to a target ID tag to which data are to be transmitted, wherein the controller performs data transmission to and from the analog frontend units using digital signals.
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Citations
11 Claims
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1. An ID tag reader/writer for writing and reading data in and from one or more ID tags, comprising:
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one or more antennas configured to perform radio communication with the ID tags;
one or more analog frontend units, each unit being provided for one of the antennas, configured to generate a carrier wave based on a clock signal and to perform signal modulation and demodulation; and
a controller configure to generate and output the clock signal to the analog frontend units and select one of the analog frontend units corresponding to a target ID tag to which the data are to be transmitted, wherein the controller performs data transmission to and from each of the analog frontend units using a digital signal line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification