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US 12,704,617 B2Granted
Drive device, ultrasonic sensor and vehicle
AssigneeRohm Co., Ltd.
InventorHideki Matsubara
Life of this patent
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Abstract
The present disclosure provides a drive device. The drive device includes a burst generating circuit and a drive circuit. The burst generating circuit is configured to generate a burst signal. The drive circuit is configured to generate a pulse drive signal based on the burst signal and supply the pulse drive signal to a target-driving element. The pulse drive signal includes a first signal having a self-wave identification frequency and a second signal having a frequency other than the self-wave identification frequency.
Claims10
A drive device, comprising:
- a burst generating circuit, configured to generate a burst signal, wherein the burst signal comprises a plurality of first pulses transmitted consecutively and a plurality of second pulses transmitted consecutively, wherein plurality of first pulses and the plurality of second pulses have different frequencies;
- and
- a drive circuit, configured to
- generate a pulse drive signal based on the burst signal and
- supply the pulse drive signal to a target-driving element, wherein
- the pulse drive signal includes a first signal, corresponding to the plurality of first pulses, having a self-wave identification frequency and a second signal, corresponding to the plurality of second pulses, having a frequency other than the self-wave identification frequency.
3 more elements
Dependencies are inferred from the claim text.