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US 4,035,839 AGranted
Ultrasonic imaging
AssigneeIndianapolis Center for Advanced Research
InventorsReginald C. Eggleton, Francis J. Fry
Life of this patent
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Abstract
Ultrasonic transmission imaging apparatus utilizing a pair of focused, large aperture transducers colinearly aligned and facing one another on opposite sides of a target. The receiving transducer and transmitting transducer are positioned to have a common focal point within the target. The transmitting transducer is energized by a continuous noncoherent noise source, and ultrasonic images are formed from the intensity modulation of the transmitted ultrasound at the receiving transducer.
Claims9
Ultrasonic imaging apparatus comprising:
- ultrasonic transducer means for transmitting a beam of ultrasonic energy toward a target and for receiving a portion of said energy after it has impinged upon said target;
- scan means for producing relative motion between the ultrasonic transducer means and the target;
- source means for energizing the ultrasonic transducer means to emit random frequency non-coherent ultrasound;
- and
- display means for displaying at positions corresponding to the relative motion produced by said scan means the relative intensities of a wide bandwidth of ultrasound received by the ultrasonic transducer means.
2 more elements
Ultrasonic transmission imaging apparatus comprising:
- a transmitting ultrasonic transducer having a first focal length;
- source means for energizing the transmitting transducer to emit ultrasound;
- a receiving transducer, having a second focal length, positioned to receive the ultrasound from the transmitting transducer, the distance between said transducers being essentially the sum of the first focal length and the second focal length;
- and
- display means for displaying the intensity of the ultrasound received by the receiving transducer.
2 more elements
Dependencies are inferred from the claim text.