Jong Bong Jeong

20090240148, Sep 24, 2009

Mar 19, 2009

12/407580

Jong Seob Jeong - Los Angeles CA, US
Jin Ho Chang - Torrance CA, US
K. Kirk Shung - Monterey Park CA, US

UNIVERSITY OF SOUTHERN CALIFORNIA - Los Angeles CA

A61B 8/13
A61N 7/00

600439

For noninvasive treatment of tissue using high intensity focused ultrasound, composite imaging and therapy acoustic techniques are described. Embodiments include an integrated multi-functional confocal array and a strategy to perform both imaging and therapy simultaneously with this array by using coded excitation techniques with/without a notch filter. An exemplary array embodiment includes a triple-row phased array with one array in the center row for imaging and two arrays in the outer rows for therapy. Different types of piezoelectric materials and stack configurations may be employed to maximize the respective therapy and imaging functionalities. Reflected therapeutic signals that would otherwise corrupt the quality of imaging signals received by the center-row array can be mitigated or removed by use of the coding and/or a notch filter when B-mode images are formed during therapy. A 13-bit Barker code is preferred for implementing coded excitation, although other codes or compression techniques may be used.

20170126131, May 4, 2017

Oct 31, 2016

15/339918

- Torrance CA, US
Jong Deog Jeong - Torrance CA, US

TF Semiconductor Solutions, Inc. - Torrance CA

H02M 3/158
H03K 17/687
H02J 7/00

The dual low-voltage driver circuit of the present invention operates as a buck-boost converter. If battery voltage is low (i.e., corresponding to a partially discharged battery), then “buck” section of the circuit is disabled and the “boost” section operates to increase the output voltage to a desired value. On the other hand, if the battery voltage is high (i.e., corresponding to a battery having a fresh charge), then the “boost” circuit is disabled and the “buck” section operates to reduce the output voltage to the desired value.