Card reader and method of operating the same
First Claim
1. A card reader for wirelessly communicating with a card, the card reader comprising:
- a first pulse generation unit configured to generate a first detection pulse for detecting the card;
a second pulse generation unit configured to generate at least one second detection pulse for detecting the card based on at least one communication pulse that is used to communicate with the card; and
a card detection unit configured to detect the card based on a reflection signal received in response to the first detection pulse or the at least one second detection pulse.
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Accused Products
Abstract
A card reader performing a wireless communication with a card includes a first pulse generation unit generating a first detection pulse for detecting the card, a second pulse generation unit generating a plurality of second detection pulses for detecting the card, or a plurality of communication pulses for communicating with the card, and a card detection unit for sensing a card being detected by the first detection pulse or the second detection pulses. In the case that the card is not sensed through the first detection pulse, the second pulse generation unit generates the second detection pulses using the communication pulses and senses the card using the second detection pulses.
10 Citations
20 Claims
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1. A card reader for wirelessly communicating with a card, the card reader comprising:
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a first pulse generation unit configured to generate a first detection pulse for detecting the card; a second pulse generation unit configured to generate at least one second detection pulse for detecting the card based on at least one communication pulse that is used to communicate with the card; and a card detection unit configured to detect the card based on a reflection signal received in response to the first detection pulse or the at least one second detection pulse. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An operation method of a card reader configured to detect a card comprising:
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generating a first detection pulse for detecting the card; periodically outputting the first detection pulse to detect the card; determining whether the card is detected; generating at least one second detection pulse by modifying at least one communication pulse used to communicate with the card; and sequentially outputting the at least one second detection pulse based on whether the card is detected. - View Dependent Claims (12, 13, 14)
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15. A card reader comprising:
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an antenna; and a processor configured to, output, via the antenna, a first detection pulse to detect a card, and output, via the antenna, at least one second detection pulse if the card is not detected by the first detection pulse, the at least one second detection pulse being generated using at least one communication pulse associated with communicating with the card. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification