MOBILE RFID READER AND RFID COMMUNICATION METHOD USING SHARED SYSTEM CLOCK
First Claim
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1. A mobile radio frequency identification (RFID) reader comprising:
- a mobile communication unit generating a clock synchronization signal at a specific pattern of a downlink frame that is broadcasted from a base transceiver station; and
a RFID reader unit sharing a system clock with other mobile RFID readers after the system clock is synchronized by the clock synchronization signal.
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Abstract
The present invention relates to a mobile radio frequency identification (RFID) reader and a RFID communication method using a shared system clock. According to the present invention, clock for synchronizing the mobile RFID readers can be shared without changing hardware of a conventional RHD device. Also, since the shared clock is used, a technology for preventing a collision with the readers can be easily realized in a mobile multi-reader environment.
13 Citations
15 Claims
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1. A mobile radio frequency identification (RFID) reader comprising:
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a mobile communication unit generating a clock synchronization signal at a specific pattern of a downlink frame that is broadcasted from a base transceiver station; and a RFID reader unit sharing a system clock with other mobile RFID readers after the system clock is synchronized by the clock synchronization signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A mobile radio frequency identification (RFID) communication method of a mobile RFID reader, the method comprising:
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generating a clock synchronization signal at a specific pattern of a downlink frame that is broadcasted from a base transceiver station; and sharing a system clock with other mobile RFID readers after the system clock is synchronized by the clock synchronization signal. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A mobile radio frequency identification (RFID) communication system comprising:
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a base transceiver station broadcasting a downlink frame according to network protocol; and a mobile RFID reader sharing a system clock with other mobile RFID readers after the system clock is synchronized by a clock synchronization signal generated at a specific pattern of the downlink frame. - View Dependent Claims (15)
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Specification