COMMUNICATION SYSTEM USING ULTRASONIC WAVES
First Claim
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1. An ultrasonic terminal comprising:
- a transducer to convert, to a first electrical signal, a first ultrasonic wave received from an ultrasonic base station or a second ultrasonic terminal via a solid medium;
a receiver to convert the first electrical signal to first data; and
a transmitter to convert second data to a second electrical signal,wherein the transducer converts the second electrical signal to a second ultrasonic wave, and transmits the converted second ultrasonic wave to the ultrasonic base station or the second ultrasonic terminal via the solid medium.
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Abstract
Disclosed is a technology for performing a communication using an ultrasonic wave in an environment where an electromagnetic shielding is so severe that a wireless communication using an electromagnetic is difficult. In the environment where the electromagnetic shielding is severe, an ultrasonic terminal according to the present invention may transmit the ultrasonic wave using a solid structure as a medium, and an ultrasonic base station may receive the ultrasonic wave using the solid structure as the medium.
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Citations
13 Claims
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1. An ultrasonic terminal comprising:
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a transducer to convert, to a first electrical signal, a first ultrasonic wave received from an ultrasonic base station or a second ultrasonic terminal via a solid medium; a receiver to convert the first electrical signal to first data; and a transmitter to convert second data to a second electrical signal, wherein the transducer converts the second electrical signal to a second ultrasonic wave, and transmits the converted second ultrasonic wave to the ultrasonic base station or the second ultrasonic terminal via the solid medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An ultrasonic base station comprising:
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a transducer to convert, to an electrical signal, an ultrasonic wave received from an ultrasonic terminal via a solid medium; a receiver to convert the electrical signal to data; and a data communication unit to transmit the data to a server using a communication network. - View Dependent Claims (10)
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11. A location estimating apparatus comprising:
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a transducer to receive a reference ultrasonic wave from an ultrasonic terminal via a solid medium; a signature generator to generate a signature for estimating a location of the ultrasonic terminal based on the reference ultrasonic wave; and a location estimating unit to estimate the location of the ultrasonic terminal based on the signature. - View Dependent Claims (12, 13)
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Specification