Patent Number: 6,168,565

Title: Medical diagnostic ultrasound system and method for simultaneous phase correction of two frequency band signal components

Abstract: A medical diagnostic ultrasound method and system for simultaneous phase correction of signal components at two frequency bands is provided. Simultaneous phase correction is performed, in part, during transmission of ultrasound waveforms and, in part, during reception of returning echoes. The phase between any two transmitted beams is adjusted by a first phase value. The phase between any two received beams is adjusted by a second phase value. Selection of the first and second phase values allows for simultaneous correction of signal components at two different frequency bands. For example, fundamental and second harmonic frequency bands are corrected for coherent imaging or processing. The phase corrections may account for different transmit and receive processes, such as fixed focus transmission and dynamic receive focusing. Images responsive to harmonic and fundamental frequencies may be generated from the same transmit and receive process with the benefits of coherent imaging, including increased frame rate.

Inventors: Napolitano; David J. (Pleasanton, CA)

Assignee: Acuson Corporation

International Classification: G01S 15/89 (20060101); G01S 15/00 (20060101); G01S 7/52 (20060101); A61B 008/00 ()

Expiration Date: 01/02/2018