LOW POWER CONTINUOUS WAVE ULTRASOUND TRANSMITTER
First Claim
1. An ultrasound transmitter, comprising:
- a first shunt transistor that shunts positive transmitter output voltage to ground; and
a second shunt transistor that shunts negative transmitter output voltage to ground;
the shunt transistors comprise control inputs that, when modulated, cause the shunt transistors to produce a continuous wave (“
CW”
) ultrasonic drive signal on a transmitter output.
1 Assignment
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Accused Products
Abstract
A system and method for providing a continuous wave (“CW”) ultrasonic drive signal and a B-mode ultrasonic drive signal from an ultrasonic transmitter are disclosed herein. An ultrasonic transmitter includes a first shunt transistor and a second shunt transistor. The first shunt transistor shunts positive transmitter output voltage to ground. The second shunt transistor shunts negative transmitter output voltage to ground. The shunt transistors include control inputs that, when modulated, cause the shunt transistors to produce a CW ultrasonic drive signal on a transmitter output. The ultrasonic transmitter also includes a first CW control transistor coupled to the first shunt transistor, and a second CW control transistor coupled to the second shunt transistor. The first and second CW control transistors respectively provide negative and positive CW drive voltage to the first and second shunt transistors.
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Citations
20 Claims
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1. An ultrasound transmitter, comprising:
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a first shunt transistor that shunts positive transmitter output voltage to ground; and a second shunt transistor that shunts negative transmitter output voltage to ground; the shunt transistors comprise control inputs that, when modulated, cause the shunt transistors to produce a continuous wave (“
CW”
) ultrasonic drive signal on a transmitter output. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, comprising:
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enabling a continuous wave (“
CW”
) control transistor;enabling a first CW drive transistor; disabling a second CW drive transistor; and providing a CW drive signal to an acoustic transducer. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An ultrasound imaging system, comprising:
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an ultrasonic signal receiver; and an ultrasonic signal transmitter, comprising; means for generating a continuous wave (“
CW”
) ultrasonic drive signal through a transmitter shunt transistor. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification