Transmission-reception apparatus and operation determination method thereof
First Claim
1. A transmission-reception apparatus comprising:
- a transmission section which transmits a signal to a surrounding space;
a reception section which receives the signal from the surrounding space;
a transmission control section which controls the transmission section to transmit the signal in a pulse shape;
a signal detection section which detects level of the signal received by the reception section; and
an operation determination section which determines as to whether or not a timing at which the level of the received signal exceeds a first determination level is within a first time period on the basis of detection result by the signal detection section and a timing at which the transmission control section controls the transmission section to transmit the signal in the pulse shape, to determine as to whether or not the transmission section and the reception section operate normally.
1 Assignment
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Accused Products
Abstract
A transmission-reception apparatus includes a transmission section, a reception section, a transmission control section, a signal detection section, and an operation determination section. The transmission section transmits a signal to a surrounding space. The reception section receives the signal from the surrounding space. The transmission control section controls the transmission section to transmit the signal in a pulse shape. The signal detection section detects level of the signal received by the reception section. The operation determination section determines as to whether or not a timing at which the level of the received signal exceeds a first determination level is within a first time period on the basis of detection result and a timing at which the transmission control section controls the transmission section to transmit the signal in the pulse shape, to determine as to whether or not the transmission section and the reception section operate normally.
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Citations
11 Claims
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1. A transmission-reception apparatus comprising:
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a transmission section which transmits a signal to a surrounding space; a reception section which receives the signal from the surrounding space; a transmission control section which controls the transmission section to transmit the signal in a pulse shape; a signal detection section which detects level of the signal received by the reception section; and an operation determination section which determines as to whether or not a timing at which the level of the received signal exceeds a first determination level is within a first time period on the basis of detection result by the signal detection section and a timing at which the transmission control section controls the transmission section to transmit the signal in the pulse shape, to determine as to whether or not the transmission section and the reception section operate normally. - View Dependent Claims (2, 3, 4)
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5. A transmission-reception apparatus comprising:
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a transmission section which transmits a transmission wave; a reception section which receives a wave including a direct wave from the transmission section and a reflected wave, which is generated when a target exists; a control section which generates a transmission timing for controlling the transmission section to transmit the transmission wave in a pulse shape; and a determination section which; is input to the transmission timing from the control section; determines as to whether or not intensity of the wave received by the reception section exceeds a first determination level within a first time period; and determines that the transmission section and the reception section operate normally, when the intensity of the received wave exceeds the first determination level within the first time period. - View Dependent Claims (6, 7, 8, 9, 10)
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11. An operation determination method for determining as to whether or not a transmission-reception apparatus including a transmission section, which transmits a signal to a surrounding space, and a reception section, which receives the signal from the surrounding space, the method comprising:
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causing the transmission section to transmit the signal in a pulse shape; comparing level of the signal received by the reception section with a determination level; judging as to whether or not a timing at which the level of the received signal exceeds the determination level is within a predetermined time period on a result of the comparing and a timing of the causing; and determining as to whether or not the transmission section and the reception section operate normally on the basis of a result of the judging.
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Specification