Low Noise Binary-Coded Gain Amplifier And Method For Time-Gain Compensation In Medical Ultrasound Imaging
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United States of America Patent
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Jan 28, 2011
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Nov 19, 2008
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Abstract
A low noise variable gain amplifier and method for processing received signals in an ultrasound medical imaging system is disclosed. Unlike solutions known from the prior art, the signals are amplified by a binary-coded gain amplifier having its amplification factor progressively increased during the penetration of the transmitted pulse into a patient's body. This allows enhancing both the system dynamic range and Signal to Noise Ratio.
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