From ALOKA Co., Ltd.;
'A Platform for Digital, Pure-Beam Imaging The high-performance, ALOKA ProSound SSD-3500 utilizes advanced ProSound technologies including:
Fully digital beam former A wide dynamic range, 12-bit A/D converter Multi beam processing.
The SSD-3500 also helps you achieve more efficient examinations. Its ergonomic, user-friendly design enables you to customize the system according to your specific application needs.'

From ALOKA Co., Ltd.;
'The ProSound SSD-4000 utilizes the most advanced acoustic technologies available today, and its multidisciplinary technology architecture enables it to offer great versatility and flexibility over a wide range of clinical applications.
With its new-generation, front-end technology including a 12-bit A/D converter, the ProSound SSD-4000 offers superior contrast resolution−especially when compared to 10-bit systems.'

From ALOKA Co., Ltd.;
'A High-Quality, Portable Veterinary Ultrasound System.
The SSD-500V is a rugged, portable convex sector/linear scanner that offers versatility, superb image quality and reliable performance in a compact design. This 22 lb system has Electronic dynamic focus and 256 shades of gray that produces high-quality images.
The SSD-500V includes comprehensive measurement and analysis packages. Measurements include distance/depth, area, circumference, velocity, heart rate, ratio and angle. The system also included obstetrical analysis functions that can calculate estimated gestational age and expected date of confinement.
In addition, customized obstetrical tables can be easily created. The SSD-500V software package also includes left ventricular function software for M-mode Cardiac evaluation.
The 500V provides excellent clinical versatility − for use in both small and large animal applications − using a wide range of optional convex and linear array transducers.'

From ESAOTE S.p.A.;
'The AU5 EPI is an ultrasound system for multi-disciplinary use that incorporates all the transducer technologies (linear, convex, phased array, and annular array) adapted to today's most diverse diagnostic requirements. Furthermore it offers the most modern and advanced techniques available today on the market.'

Amplitude shading is a method of reducing the side lobe levels in a transducer array. The shading usually causes the main beam to broaden by applying different voltages to the elements of the array.

See also Analog Output Signal.