Abstract: An ultrasonic apparatus for medical examination using ultrasonic waves, comprising a movable transducer probe which includes a transducer array of electroacoustic transducers for transmitting ultrasonic signals into a patient body and receiving as analog raw data ultrasonic echoes; the transducer probe configured to generate digital raw data based on the received analog raw data which comprises measurement data sets for temporally consecutive measurement time intervals, and is configured to transmit the digital raw data via a digital data interface; a computer device configured to buffer the respective measurement data sets of the digital raw data and is configured to carry out a digital beamforming for each of the buffered measurement data sets, to obtain a reconstructed image of the tissue sector, and generate, based on the reconstructed images, an image stream with a predetermined image refresh rate and supply it to a display means which reproduces the image stream.

Abstract: An ultrasonic system includes an ultrasonic probe and a data processing unit which is physically separate from the ultrasonic probe, runs on an operating system and has a receiving memory and a transmission memory. A real-time bus system is for data coupling of the ultrasonic probe to the memories. A probe system manages data within the ultrasonic probe, the clock inaccuracy of the probe system is at least three orders of magnitude less than the clock inaccuracy of the real-time bus system. The response time of the operating system is at least two orders of magnitude longer than the clock inaccuracy of the real-time bus system. The real-time bus system is configured to transfer transmission data and received data simultaneously by uninterrupted streaming clocked with an on average constant rate during stateless operation of the ultrasonic probe, the operation not differentiating between transmission and receiving operation.