Ultrasound front-end circuit combining the transmitter and automatic transmit/receive switch with agile power level control
Patent 6050945 Issued on April 18, 2000. Estimated Expiration Date: 
September 30, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 30, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesC W and pulse Doppler diagnostic system Digital input stage for an ultrasound apparatus Duplexer including a field-effect transistor for use in an ultrasound imaging system Duplexer including a variable capacitance diode for an ultrasound imaging system Ultrasonic cleaning apparatus Patent #: 5865199 InventorsAssigneeApplicationNo. 164214 filed on 09/30/1998US Classes:600/443, Anatomic image produced by reflective scanning600/447Electronic array scanningExaminersPrimary: Lateef, Marvin M.Assistant: Imam, Ali M. Foreign Patent References
International ClassA61B 008/00AbstractAn 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.Field of SearchUltrasonicHaving B-scan and Doppler Anatomic image produced by reflective scanning With mechanical and electronic scanning Infrared, visible light, or ultraviolet radiation directed on or through body or constituent released therefrom Electronic array scanning With movable means to cause fluid motion (e.g., pump, splasher, agitator) SIGNAL TRANSDUCERS | |
