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| Number | Title | Issue Date |
| 4271842 | Apparatus and method for providing multiple ultrasonic sector image displays The apparatus includes an input controller connected to receive input data representing ultrasonic sector images of a patient for digitizing selected ones of the images thereby representing those images in a digital format. A front panel interface is prov... | 06/09/1981 |
| 4241611 | Ultrasonic diagnostic transducer assembly and system An ultrasonic transducer assembly and system including a disc-shaped transducer element surrounded by ring-shaped transducer elements of different width to permit dynamic focusing and minimum phase cancellation. The elements are switched so that the outpu... | 12/30/1980 |
| 4149419 | Ultrasonic transducer probe An ultrasonic transducer probe having a sealed rotor housing, a plurality of transducers mounted on a rotor disposed in said housing. A rotor shaft mounts the rotor and extends through the housing. A drive assembly including commutating and position indic... | 04/17/1979 |
| 4047819 | Apparatus for measuring optical density with stray light compensation Apparatus for measuring the optical density of a sample includes a dual beam spectrophotometer producing sample and reference signals which are compared with the discharge curve of a resistive-capacitive circuit to provide start-stop signals, the time int... | 09/13/1977 |
| 4034744 | Ultrasonic scanning system with video recorder An ultrasonic scanning system for observing the internal organs of the body including at least one ultrasonic transducer for sequentially scanning a region of the body and pulsing means for periodically pulsing said transducer as it begins a scan. Video r... | 07/12/1977 |
