Mobile radio frequency identification reader, portable terminal having the same, and FR transmission power setting method thereof
First Claim
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1. A radio frequency (RF) transmission (Tx) power setting method comprising:
- selecting an RF Tx power of an RF Tx signal which is used to read tag information from an RF identification (RFID) tag; and
setting the selected RF Tx power to a Tx power of the RF Tx signal.
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Abstract
A mobile radio frequency identification (RFID) reader, a portable terminal having the same, and an RF transmission (Tx) power setting method thereof. The RF Tx power setting method includes selecting an RF Tx power of an RF Tx power which is used to read tag information from an RF identification (RFID) tag; and setting the selected RF Tx power to a Tx power of the RF Tx signal. Accordingly, since it is possible to variably set the Tx power of the RF Tx signal used to read out the tag information from the RFID tag, the power consumption can be reduced at the RFID reader or the portable terminal equipped with the RFID reader.
11 Citations
27 Claims
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1. A radio frequency (RF) transmission (Tx) power setting method comprising:
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selecting an RF Tx power of an RF Tx signal which is used to read tag information from an RF identification (RFID) tag; and
setting the selected RF Tx power to a Tx power of the RF Tx signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An RF Tx power setting method comprising:
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selecting one of generatable RF Tx signals; and
setting the selected RF Tx signal to an RF Tx signal which is used to read tag information from an RFID tag.
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13. A portable terminal comprising:
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a radio frequency identification (RFID) reader which reads tag information from an RFID tag by transmitting an RF transmission (Tx) signal; and
a portable terminal control block which selects an RF Tx power of an RF Tx signal which is used to read the tag information from the RFID tag, wherein the RFID reader comprises an RFID reader controller which sets the selected RF Tx power to a Tx power of the RF Tx signal. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A portable terminal comprising:
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a radio frequency identification (RFID) reader which reads tag information from an RFID tag by transmitting an RF transmission (Tx) signal, the portable terminal comprising; and
a portable terminal control block which selects one of generatable RF Tx signals, wherein the RFID reader comprises an RFID reader controller which, as a component of the RFID reader, sets the selected RF Tx signal to an RF Tx signal which is used to read the tag information from the RFID tag.
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25. A portable terminal comprising:
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a radio frequency identification (RFID) reader which reads tag information from an RFID tag by transmitting an RF transmission (Tx) signal, the portable terminal; and
a portable terminal control block which selects an RF Tx power of an RF Tx signal which is used to read the tag information from the RFID tag, and sets the selected RF Tx power to a Tx power of the RF Tx signal.
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26. A radio frequency identification (RFID) reader which reads tag information from an RFID tag by transmitting an RF transmission (Tx) signal, the RFID reader comprising an RFID reader controller which sets an RF Tx power of the RF Tx signal to a Tx power of the RF Tx signal, wherein the RF Tx power is selected by an external device and used to read the tag information from the RFID tag.
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27. A radio frequency identification (RFID) reader which reads tag information from an RFID tag by transmitting an RF transmission (Tx) signal, wherein the RFID reader sets an RF Tx power of the RF Tx signal to a Tx power of the RF Tx signal, wherein the RF Tx power is selected by an external device and used to read the tag information from the RFID tag.
Specification