IC tag read-write apparatus and antenna unit thereof
First Claim
1. An IC tag read-write apparatus, comprising:
- a control circuit configured to control data relative to an outgoing carrier wave and an incoming carrier wave;
a transmission link; and
a plurality of antenna units corresponding to a plurality of IC tags, each one of the plurality of antenna units including;
a modem connected to the control circuit through the transmission link and configured to modulate the carrier wave based on the data in a data writing operation and to demodulate the incoming carrier wave in a data reading operation;
a first antenna configured to send the modulated carrier wave by air to a second antenna of a corresponding one of the plurality of IC tags; and
an indication circuit configured to generate property information with respect to the antenna unit,wherein the control circuit is configured to communicate with the plurality of IC tags via the corresponding plurality of antenna units and wherein the control circuit is configured to control the plurality of antenna units.
1 Assignment
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Accused Products
Abstract
An IC tag read-write apparatus includes a control circuit, a transmission link, and a plurality of antenna units. The control circuit controls data relative to an outgoing carrier wave and an incoming carrier wave. The antenna units correspond to a plurality of IC tags. Each of the antenna units includes a modem, a first antenna, and an indication circuit. The modem is connected to the control circuit through the transmission link and modulates the carrier wave based on the data in a data writing operation and demodulates the incoming carrier wave in a data reading operation. The first antenna sends the modulated carrier wave by air to a second antenna of a corresponding one of the IC tags. The indication circuit generates property information with respect to the antenna unit.
11 Citations
20 Claims
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1. An IC tag read-write apparatus, comprising:
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a control circuit configured to control data relative to an outgoing carrier wave and an incoming carrier wave; a transmission link; and a plurality of antenna units corresponding to a plurality of IC tags, each one of the plurality of antenna units including; a modem connected to the control circuit through the transmission link and configured to modulate the carrier wave based on the data in a data writing operation and to demodulate the incoming carrier wave in a data reading operation; a first antenna configured to send the modulated carrier wave by air to a second antenna of a corresponding one of the plurality of IC tags; and an indication circuit configured to generate property information with respect to the antenna unit, wherein the control circuit is configured to communicate with the plurality of IC tags via the corresponding plurality of antenna units and wherein the control circuit is configured to control the plurality of antenna units. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An IC tag read-write apparatus, comprising:
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a control circuit configured to control data relative to an outgoing carrier wave and an incoming carrier wave; a transmission link; and a plurality of antenna units corresponding to a plurality of IC tags, each one of the plurality of antenna units including; a modem connected to the control circuit through the transmission link and configured to modulate the carrier wave based on the data in a data writing operation and to demodulate the incoming carrier wave in a data reading operation; a first antenna configured to send the modulated carrier wave by air to a second antenna of a corresponding one of the plurality of IC tags; and a filter circuit including a plurality of analog filters having properties different from each other and configured to selectively connect one of the plurality of analog filters to the modem on an exclusive basis in response to an input control signal, wherein the control circuit is configured to communicate with the plurality of IC tags via the corresponding plurality of antenna units and wherein the control circuit is configured to control the plurality of antenna units. - View Dependent Claims (15, 16, 17, 18)
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19. An antenna apparatus for use in an IC tag read-write apparatus having a control circuit and a transmission link, the antenna apparatus comprising:
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a plurality of antenna units corresponding to a plurality of IC tags, each one of the plurality of antenna units including; a modem connected to the control circuit through the transmission link and configured to modulate the carrier wave based on the data in a data writing operation and to demodulate the incoming carrier wave in a data reading operation; a first antenna configured to send the modulated carrier wave by air to a second antenna of a corresponding one of the plurality of IC tags; and a filter circuit including a plurality of analog filters having properties different from each other and configured to selectively connect one of the plurality of analog filters to the modem on an exclusive basis in response to an input control signal, wherein the plurality of antenna units are configured to allow the control circuit to communicate with the plurality of IC tags via the plurality of antenna units and wherein the plurality of antenna units are configured to be controlled by the control circuit. - View Dependent Claims (20)
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Specification