Ultrasonic sensing devices

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12175040
APP PUB NO 20230376146A1
SERIAL NO

18152765

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present disclosure provides a device for ultrasonic sensing, which includes a driver circuit configured to generate an ultrasonic signal, a piezoelectric element having a first electrode and a second electrode, a blocking transistor configured to connect the piezoelectric element with the second electrode to a fixed bias voltage, and a source rectifier including a gate, a drain, and a source electrically connected to the piezoelectric element and the blocking transistor. The piezoelectric element is coupled with the driver circuit with the first electrode. The blocking transistor includes a gate for receiving a blocking control signal, a drain electrically connected to the second electrode of the piezoelectric element, and a source electrically connected to the fixed bias voltage, wherein, in response to the blocking signal, the blocking transistor is configured to be turned on within a transmission period and to be turned off within a receiving period.

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Patent Owner(s)

Patent OwnerAddress
SCHIATEK LIMITED COMPANY1 F NO 88 CHENGGONG 6TH ST LUCHANG VIL ZHUBEI CITY HSINCHU COUNTY 30264

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Wen-Hua Hsinchu County, TW 23 112

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