Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1998-09-30
2000-04-18
Lateef, Marvin M.
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
600447, A61B 800
Patent
active
060509457
ABSTRACT:
An ultrasound front end circuit (2000) which includes a multiple winding transformers (N1, N2, N3, N4) to accomplish both transmit pulse generation and transmit/receive switching. An additional set of transformer windings and switching transistors (1103) allows logical selection between one of two transmit levels.
REFERENCES:
patent: 4819652 (1989-04-01), Micco
patent: 4975885 (1990-12-01), Hassler et al.
patent: 5603324 (1997-02-01), Oppelt et al.
patent: 5609154 (1997-03-01), Oppelt et al.
patent: 5865199 (1999-02-01), Pedziwiatr et al.
Oaks David G.
Peterson David A.
Imam Ali M.
Lateef Marvin M.
Siemens Medical Systems Inc.
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