Data communication apparatus functioning as ID tag and ID-tag reader and writer
First Claim
1. A data communication apparatus having an ID-tag function and an ID-tag read-write function, comprising:
- an antenna configured to receive a signal from other ID tags and to send a signal the apparatus;
a control circuit configured to generate data; and
an analog front-end circuit electrically connected between the antenna and the control circuit and comprising;
a first modulation circuit configured to modulate data to be transmitted to other ID tags and to send the modulated data to the antenna;
a second modulation circuit configured to modulate data to be transmitted to other read-write devices;
a driver circuit configured to amplify an output from the second modulation circuit to drive the antenna;
a demodulation circuit configured to demodulate data sent from the other ID tags and the other ID-tag read-write devices; and
an input switch configured to selectively input data to one of the first and second modulation circuits, the data being sent from the control circuit to the analog front-end circuit.
1 Assignment
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Accused Products
Abstract
A data communication apparatus includes an antenna, an analog front-end circuit, and a controller. The analog front-end circuit is connected between the antenna and the controller and includes first and second modulators, a driver, a demodulator, and an input switch. The first modulator modulates data to be transmitted to other ID tags and sends the modulated data to the antenna. The second modulation circuit modulates data to be transmitted to other read-write devices. The driver amplifies an output from the second modulator to drive the antenna. The demodulator demodulates data sent from the other ID tags and ID-tag read-write devices. The input switch selectively inputs the data to the first or second modulator. This abstract is provided to comply with rules requiring an abstract, and it is submitted with the intention that it will not be used to interpret or limit the scope or meaning of the claims.
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Citations
10 Claims
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1. A data communication apparatus having an ID-tag function and an ID-tag read-write function, comprising:
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an antenna configured to receive a signal from other ID tags and to send a signal the apparatus;
a control circuit configured to generate data; and
an analog front-end circuit electrically connected between the antenna and the control circuit and comprising;
a first modulation circuit configured to modulate data to be transmitted to other ID tags and to send the modulated data to the antenna;
a second modulation circuit configured to modulate data to be transmitted to other read-write devices;
a driver circuit configured to amplify an output from the second modulation circuit to drive the antenna;
a demodulation circuit configured to demodulate data sent from the other ID tags and the other ID-tag read-write devices; and
an input switch configured to selectively input data to one of the first and second modulation circuits, the data being sent from the control circuit to the analog front-end circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification