APPARATUS AND METHOD
First Claim
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1. An apparatus having a sensor including a transmission unit for transmitting a wave and a reception unit for receiving a wave from outside, the apparatus comprising:
- a transmission control unit configured to cause the transmission unit to transmit a first wave and a second wave whose wavelength is shorter than the first wave; and
a determination unit configured to determine whether there is an object outside of the apparatus, based on a first reflected wave received by the reception unit for the first wave and a second reflected wave received by the reception unit for the second wave.
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Abstract
A transmission unit is caused to transmit a first wave from a transmission unit that transmits waves, and a second wave. Based on a first reflected wave of the first wave and a second reflected wave of the second wave, it is determined whether there is an object outside of the apparatus.
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Citations
13 Claims
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1. An apparatus having a sensor including a transmission unit for transmitting a wave and a reception unit for receiving a wave from outside, the apparatus comprising:
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a transmission control unit configured to cause the transmission unit to transmit a first wave and a second wave whose wavelength is shorter than the first wave; and a determination unit configured to determine whether there is an object outside of the apparatus, based on a first reflected wave received by the reception unit for the first wave and a second reflected wave received by the reception unit for the second wave. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method executed in an apparatus having a sensor including a transmission unit for transmitting a wave and a reception unit for receiving a wave from outside, the method comprising:
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causing the transmission unit to transmit a first wave and a second wave whose wavelength is shorter than the first wave; and determining whether there is an object outside of the apparatus, based on a first reflected wave received for the first wave and a second reflected wave received for the second wave.
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Specification