Reader/writer for contactless integrated circuit cards and management system for vending machines
First Claim
1. A reader/writer, comprising:
- a communicating unit that is able to output first electromagnetic waves to perform a communication based on the first electromagnetic waves with a contactless IC card placed within a communication area of the communicating unit;
a judging unit that judges whether or not the contactless IC card placed within the communication area is now in communication with a second reader/writer; and
a communication control unit that forbids the communicating unit outputting the first electromagnetic waves in response to a judgment of the judging unit indicating that the contactless IC card is now in communication with the second reader/writer, and that controls the communicating unit, in response to a judgment of the judging unit indicating that the contactless IC card is not in communication with the second reader/writer, to output the first electromagnetic waves to the contactless IC card placed with the communication area in order to start communicating with the contactless IC card.
1 Assignment
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Accused Products
Abstract
A handy reader/writer has a data transmitting and receiving units and a control unit. The transmitting and receiving units communicate with a contactless IC card placed within a communication area of the communicating unit by using first electromagnetic waves outputted from an antenna. The control unit judges whether or not the card is now in communication with a second reader/writer. If the control unit detects the card communicating with the second reader/writer by using second electromagnetic waves, the control unit forbids the antenna outputting the first electromagnetic waves. If the control unit does not detect the card communicating with the second reader/writer, the control unit starts communicating with the card placed. The second reader/writer does not output the second electromagnetic waves when detecting the first electromagnetic waves, and starts communicating with the card when detecting no first electromagnetic waves.
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Citations
10 Claims
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1. A reader/writer, comprising:
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a communicating unit that is able to output first electromagnetic waves to perform a communication based on the first electromagnetic waves with a contactless IC card placed within a communication area of the communicating unit; a judging unit that judges whether or not the contactless IC card placed within the communication area is now in communication with a second reader/writer; and a communication control unit that forbids the communicating unit outputting the first electromagnetic waves in response to a judgment of the judging unit indicating that the contactless IC card is now in communication with the second reader/writer, and that controls the communicating unit, in response to a judgment of the judging unit indicating that the contactless IC card is not in communication with the second reader/writer, to output the first electromagnetic waves to the contactless IC card placed with the communication area in order to start communicating with the contactless IC card. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A vending machine management system, comprising:
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a contactless IC card; a hand-held reader/writer that is able to output first electromagnetic waves to perform a communication based on the first electromagnetic waves with the contactless IC card placed within a communication area of the hand-held reader/writer; and a vending machine that is able to output second electromagnetic waves to perform a communication based on the second electromagnetic waves with the contactless IC card placed within a communication area of the vending machine, wherein the hand-held reader/writer outputs the first electromagnetic waves to start communicating with the contactless IC card placed within the communication area of the hand-held reader/writer in response to the contactless IC card not communicating with the vending machine, and the vending machine outputs the second electromagnetic waves to start communicating with the contactless IC card placed within the communication area of the vending machines in response to the contactless IC card not communicating with the hand-held reader/writer. - View Dependent Claims (9, 10)
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Specification