Semiconductor integrated circuit device

Details Semiconductor integrated circuit device Semiconductor integrated circuit device

2011-07-05

2011-07-05

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S112000

Reexamination Certificate

active

07973573

ABSTRACT:
A semiconductor integrated circuit having a plurality of ultrasound pulsers corresponding to a plurality of respective channels, and integrally formed on a small area. The ultrasound pulsers each include a MOSFET gate drive circuit in which an input voltage pulse is converted into a current pulse, and the current pulse is converted again into a voltage pulse on the basis of a high potential side voltage +HV, and a low potential side voltage −HV, applied to a transducer drive circuit, and in which a voltage level shift in the input voltage pulse is attained, and a voltage pulse swing is generated by the MOSFET gate drive circuit on the basis of the high potential side voltage +HV, and the low potential side voltage −HV. The MOSFET gate drive circuit is DC-coupled with the transducer drive circuit.

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patent: 6441432 (2002-08-01), Sumida
patent: 7400163 (2008-07-01), Yanagigawa et al.
patent: 7692456 (2010-04-01), Hanazawa et al.
patent: 6-53113 (1994-07-01), None
patent: 11-205112 (1999-07-01), None
patent: 2000-156495 (2000-06-01), None
patent: 2005-340624 (2005-12-01), None

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