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US 8,009,517 B2Granted
Wireless communication system, transmitting device, receiving device and information processing apparatus
AssigneeSeiko Epson Corporation
InventorMichio Irie
Life of this patent
Estimating the term…
Abstract
A wireless communication system includes a transmitting device and a receiving device, in which the transmitting device generates a signal including information and transmits the signal by electromagnetic waves and ultrasonic waves in the same frequency in parallel, and in which the receiving device extracts the signal from at least one of the electromagnetic waves and the ultrasonic waves transmitted from the transmitting device and acquires the information included in the extracted signal.
Claims7
A wireless communication system comprising:
- a transmitting device;
- and
- a receiving device, and
- wherein the transmitting device includes
- an input portion generating an input signal based on information to be inputted,
- a modulation portion generating a modulation signal by performing a prescribed modulation to the input signal,
- a transmitting portion generating a high-frequency signal having a prescribed frequency by amplifying the modulation signal,
- a dividing portion dividing the high-frequency signal into a first signal and a second signal,
- an antenna portion converting the first divided high-frequency signals into electromagnetic waves having the prescribed frequency and radiating the electromagnetic waves and
- a piezoelectric element portion converting the second divided high-frequency signals into ultrasonic waves having the prescribed frequency and radiating the ultrasonic waves,
- wherein the receiving device includes
- an antenna portion receiving electromagnetic waves having the prescribed frequency and converting the waves into a high-frequency signal 1,
- a piezoelectric element portion receiving ultrasonic waves having the prescribed frequency and converting the waves into a high-frequency signal 2,
- a combining portion combining the high-frequency signal 1 with the high-frequency signal 2 to generate a combined signal,
- a receiving portion extracting a modulation signal from the combined signal,
- a demodulation portion demodulating the extracted modulation signal to acquire the input signal, and
- an output portion outputting the information included in the acquired input signal.
14 more elements
A transmitting device comprising:
- an input portion generating an input signal based on information to be inputted;
- a modulation portion generating a modulation signal by performing a prescribed modulation to the input signal,
- a dividing portion dividing the modulation signal into a first signal and a second signal;
- an electromagnetic-waves transmitting portion generating a high-frequency signal 1 by amplifying the first divided modulation signals;
- an ultrasonic-waves transmitting portion generating a high-frequency signal 2 by amplifying the second divided modulation signal;
- an antenna portion converting the high-frequency signal 1 into electromagnetic waves having a prescribed frequency and radiating the electromagnetic waves;
- and
- a piezoelectric element portion converting the high-frequency signal 2 into ultrasonic waves having the prescribed frequency and radiating the ultrasonic waves.
5 more elements
A receiving device comprising:
- an antenna portion receiving electromagnetic waves of electromagnetic waves and ultrasonic waves transmitted by the same frequency, which have been obtained by modulating an input signal generated based on information to be inputted, and converting the electromagnetic waves into a high-frequency signal 1;
- a piezoelectric element portion receiving the ultrasonic waves and converting the waves into a high-frequency signal 2;
- an electromagnetic-waves receiving portion extracting a modulation signal 1 from the high-frequency signal 1;
- an ultrasonic-waves receiving portion extracting a modulation signal 2 from the high-frequency signal 2;
- a combining portion combining the modulation signal 1 with the modulation signal 2 to generate a combined modulation signal;
- a demodulation portion demodulating the combined modulation signal to acquire the input signal;
- and
- an output portion outputting information included in the acquired input signal.
5 more elements
An information processing apparatus carried at the time of diving, comprising:
- At least one of:
- 1) the transmitting device, that includes:
- an input portion generating an input signal based on information to be inputted,
- a modulation portion generating a modulation signal by performing a prescribed modulation to the input signal,
- a transmitting portion generating a high-frequency signal having a prescribed frequency by amplifying the modulation signal,
- a dividing portion dividing the high-frequency signal into a first signal and a second signal,
- an antenna portion converting the first divided high-frequency signals into electromagnetic waves having the prescribed frequency and radiating the electromagnetic waves, and
- a piezoelectric element portion converting the second divided high-frequency signals into ultrasonic waves having the prescribed frequency and radiating the ultrasonic waves, and
- 2) the receiving device, that includes:
- an antenna portion receiving electromagnetic waves having the prescribed frequency and converting the waves into a high-frequency signal 1,
- a piezoelectric element portion receiving ultrasonic waves having the prescribed frequency and converting the waves into a high-frequency signal 2,
- a combining portion combining the high-frequency signal 1 with the high-frequency signal 2 to generate a combined signal,
- a receiving portion extracting a modulation signal from the combined signal,
- a demodulation portion demodulating the extracted modulation signal to acquire the input signal, and
- an output portion outputting the information included in the acquired input signal.
12 more elements
Dependencies are inferred from the claim text.