Apparatus and method for integrated reader and tag
First Claim
Patent Images
1. A reader-tag integrated radio frequency identification (RFID) apparatus, comprising:
- a tag means for communicating with an external reader, and transmitting a response signal and data corresponding to a signal transmitted from the external reader to the external reader;
a reader means for selecting a channel for communicating between another reader and the reader-tag integrated RFID apparatus and for transmitting on the channel at a different delay time than the communicating by the tag means, and communicating with an external tag using a random value to minimize collision where a range of the random value changes responsive to a number of readers in an environment of the apparatus; and
a controlling means for selectively activating one of the tag means and the reader means if necessary and operating in one of a listen before talk (LBT) mode and a random access mode where the mode of operating is responsive to operator selection.
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Abstract
Provided are a reader-tag integrated RFID apparatus and a method for controlling the same. The apparatus includes a tag unit for communicating with an external reader, and transmitting a response signal and data corresponding to a signal transmitted from the external reader to the external reader, a reader unit for selecting a channel between other reader and the reader-tag integrated RFID apparatus with a different delay time, and communicating with an external tag using a random value to minimize collision; and a controller for selectively activating one of the tag unit and the reader unit if it necessary.
18 Citations
31 Claims
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1. A reader-tag integrated radio frequency identification (RFID) apparatus, comprising:
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a tag means for communicating with an external reader, and transmitting a response signal and data corresponding to a signal transmitted from the external reader to the external reader; a reader means for selecting a channel for communicating between another reader and the reader-tag integrated RFID apparatus and for transmitting on the channel at a different delay time than the communicating by the tag means, and communicating with an external tag using a random value to minimize collision where a range of the random value changes responsive to a number of readers in an environment of the apparatus; and a controlling means for selectively activating one of the tag means and the reader means if necessary and operating in one of a listen before talk (LBT) mode and a random access mode where the mode of operating is responsive to operator selection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for controlling a reader-tag integrated radio frequency identification (RFID) apparatus, comprising:
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communicating with an external reader and transmitting a response signal and data corresponding to a signal transmitted from the external reader to the external reader; communicating with an external tag by selecting a channel for communicating between another reader and the reader-tag integrated RFID and transmitting on the channel at a different delay time than the communicating with the external reader and using a random value to minimize collision where a range of the random value changes responsive to a number of readers in an environment of the apparatus; and selectively performing the communicating with the external reader and the communicating with the external tag if necessary and operating in one of a listen before talk (LBT) mode and a random access mode where the mode of operating is responsive to operator selection. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification