Disclosed herein are ultrasonic transducer systems comprising: an ultrasonic imager comprising a plurality of pMUT transducer elements; and one or more circuitries connected electronically to the plurality of transducer element, the one or more circuitries configured to enable: pulse transmission and reception of reflected signal for the ultrasonic transducer, where inductors are used to equalize impedance to obtain greater pressure output. Also disclosed are methods of altering a pressure of an ultrasonic wave emitted by an ultrasonic transducer.

A body tissue to be detected is automatically detected certainly with high precision. An ultrasonic body tissue detecting device may include a transmission/reception unit, a two-dimensional data acquisition unit, a spatial frequency distribution calculation unit and a determination unit. The transmission/reception unit may transmit an ultrasonic signal into a body of a sample and receive an echo signal of the ultrasonic signal. The two-dimensional data acquisition unit may form two-dimensional echo image in a transmitting direction of the ultrasonic signal and in a scanning direction. The spatial frequency distribution calculation unit may perform a spatial frequency conversion of the two-dimensional echo image and calculate a spatial frequency distribution for a determining position. The determination unit may determine whether the determining position is the body tissue to be detected based on a distribution of amplitude in the transmitting direction of the ultrasonic signal and a distribution of amplitude in the scanning direction of the spatial frequency distribution.

A displacement measurement apparatus includes an ultrasound sensor transmitting ultrasounds to an object in accordance with a drive signal, and detecting ultrasound echo signals generated in the object to output echo signals; a driving and processing unit supplying the drive signal to the sensor, and processing the echo signals from the sensor to obtain ultrasound echo data; and a controller controlling the driving and processing unit to yield an ultrasound echo data frame at each of plural different temporal phases based on the ultrasound echo data obtained by scanning the object. The ultrasound echo data has one of local single octant spectra, local single quadrant spectra, and local single half-band-sided spectra in a frequency domain. The ultrasound echo data is obtained from plural same bandwidth spectra. A data processing unit calculates a displacement at each local position or distribution thereof in at least one of axial, lateral, and elevational directions by solving simultaneous equations derived at each local position via implementing a predetermined displacement measurement method on the ultrasound echo data yielded at the plural different temporal phases with respect to at least one of the axial, lateral, and elevational carrier frequencies and the phase, or the one of the local single octant spectra, the local single quadrant spectra, and the local single half-band-sided spectra.

To implement a single-chip ultrasonic imaging solution, on-chip signal processing may be employed in the receive signal path to reduce data bandwidth and a high-speed serial data module may be used to move data for all received channels off-chip as digital data stream. The digitization of received signals on-chip allows advanced digital signal processing to be performed on-chip, and thus permits the full integration of an entire ultrasonic imaging system on a single semiconductor substrate. Various novel waveform generation techniques, transducer configuration and biasing methodologies, etc., are likewise disclosed. HIFU methods may additionally or alternatively be employed as a component of the “ultrasound-on-a-chip” solution disclosed herein.

Provided is a technique capable of simultaneously satisfying two requests of removing a speckle and clarifying a tissue structure. A noise in an ultrasonic image is removed, and a morphology processing is performed on a noise-removed image. The morphology processing includes a first calculation of performing dilation and erosion and a second calculation of performing opening and closing, and determines a value of a structural element used in the second calculation of the morphology by using a result of the first calculation performed on the noise-removed image.

An ultrasonic diagnostic scanner is provided which includes a transmitting and receiving unit that transmits two kinds of ultrasonic waves with inverted phases to each of a plurality of scanning lines and receives first and second echo signals corresponding to the two kinds of ultrasonic waves from one scanning line to another, a first adder that obtains a third echo signal by adding up the first and second echo signals for each scanning line, a first signal generating unit that generates a first processed signal from the first echo signal and a second processed signal from the third echo signal, a second adder that generates a third processed signal from the first and second processed signals, an image processor that generates an ultrasonic image from the third processed signal, and an display monitor that displays the ultrasonic image.

The present invention relates to a method for high-speed parallel processing for an ultrasonic signal, the method used for generation of an ultrasonic image by a smart device, which is provided with a mobile graphic processing unit (GPU), by receiving an input of an ultrasonic signal. The method comprises the steps of: receiving an input of an ultrasonic signal beam-formed by means of a first rendering cycle, removing a DC component from the ultrasonic signal, and then separating an in-phase component and a quadrature component from the ultrasonic signal, from which the DC component has been removed, and separately outputting same; a smart device performing quadrature demodulation and envelope detection processing for the ultrasonic signal, having the in-phase component and the quadrature component, by means of a second rendering cycle; and the smart device performing scan conversion for the ultrasonic signal, which has been obtained as the result of the second rendering cycle, by means of a fifth rendering cycle, wherein the rendering cycles are formed as a graphics pipeline structure comprising a vertex shader procedure, a rasterizer procedure, and a fragment shader procedure. A method for high-speed parallel processing for an ultrasonic signal by using a smart device, according to the present invention, enables high-speed parallel processing for an ultrasonic signal by means of a mobile GPU inside a smart device even in a mobile-based environment instead of a PC-based environment, thereby enabling the providing of an image having a frame rate that is useful for medical diagnosis.

Circuitry for ultrasound devices is described. A multilevel pulser is described, which can provide bipolar pulses of multiple levels. The multilevel pulser includes a pulsing circuit and pulser and feedback circuit. Symmetric switches are also described. The symmetric switches can be positioned as inputs to ultrasound receiving circuitry to block signals from the receiving circuitry.

According to the invention, n incident acoustic waves Ei(t), obtained by linearly combining n elemental incident waves E0i(t) with an encoding matrix Hc are consecutively transmitted in a medium to be imaged. n reverberated waves Ri(t) from the medium to be imaged are then consecutively detected, following the transmission of the n incident waves; then n elemental reverberated waves R0i(t) are determined by linearly combining the detected n reverberated waves Ri(t) with a decoding matrix Hd. The Hc and Hd matrices are such that Hc.Hd=D, where D is a diagonal matrix of order n, all the diagonal elements of which are greater than 1.

In backscatter coefficient imaging, a backscatter coefficient of one region of interest relative another region of interest is used to avoid calibration. The system effects are removed by using a frequency-dependent measure of the backscatter. The relative frequency-dependent backscatter coefficient is determined by an ultrasound scanner.