发明名称 |
PIXEL RECEIVER WITH LOW FREQUENCY NOISE REDUCTION FOR ULTRASONIC IMAGING APPARATUS |
摘要 |
Apparatus and method for generating a DC pixel voltage are disclosed. The apparatus includes an amplifier configured to amplify an input signal to generate a voltage signal, wherein the input signal is generated in response to an ultrasonic wave reflecting off an item-to-be-imaged and propagating via a piezoelectric layer; a noise reduction circuit configured to pass the voltage signal from an output of the amplifier to a node, while reducing a propagation of noise from the output of the amplifier to the node; and a circuit configured to generate a DC pixel voltage based on the reduced- noise voltage signal. |
申请公布号 |
WO2017048549(A1) |
申请公布日期 |
2017.03.23 |
申请号 |
WO2016US50435 |
申请日期 |
2016.09.06 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
WADHWA, Sameer;MATHE, Lennart Karl-Axel |
分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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