Apparatus and method
AssigneeCanon Kabushiki Kaisha
InventorHiroshi Fukada
Life of this patent
Estimating the term…
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.
Claims13
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.
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:
- 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.
Dependencies are inferred from the claim text.