An analog store-digital read (ASDR) ultrasound beamformer architecture performs the task of signal beamforming using a matrix of sample/hold cells to capture, store and process instantaneous samples of analog signals from ultrasound array elements and this architecture provides significant reduction in power consumption and the size of the diagnostic ultrasound imaging system such that the hardware build upon ASDR ultrasound beamformer architecture can be placed in one or few application specific integrated chips (ASIC) positioned next to the ultrasound array and the whole diagnostic ultrasound imaging system could fit in the handle of the ultrasonic probe while preserving most of the functionality of a cart-based system. The ASDR architecture provides improved signal-to-noise ratio and is scalable.

An ultrasound probe has a two dimensional matrix array transducer and a digital microbeamformer. The microbeamformer comprises a plurality of transmitters and amplifiers coupled to elements of the array transducer, a plurality of low power analog to digital converters and digital beamforming circuitry coupled to the amplifiers, a microbeamformer controller, a power supply and a USB controller which cumulatively consume three watts or less.

An inspection device is provided, including a base, a circuit assembly, an electrocardiogram sensor, a diaphragm, an annular member, and a positioning member. The base has a top surface, a bottom surface, a guiding portion, an opening, and an accommodating space. The guiding portion is formed on the top surface, the opening is formed on the bottom surface, and the accommodating space is formed between the top surface and the bottom surface. The circuit assembly is disposed in the accommodating space, and has a first contact and a second contact. The electrocardiogram sensor is disposed on the bottom surface and electrically connected to the circuit assembly. The diaphragm covers the opening. The annular member is rotatably connected to the base and has a guiding member. The guiding member is slidably connected to the guiding portion. The positioning member is affixed to the annular member and has a contacting portion.

The present disclosure concerns an ultrasound system for providing tactile mid-air haptic feedback. As described herein, various embodiments of the invention can create a precise mid-air tactile sensation in mid-air on a body part of a user through use of an array of ultrasonic emitters. The array produces steerable focal points of ultrasonic energy that provide sufficient radiation pressure to be felt by the skin of the user. Such an implementation allows for multiple points of contact with immersive computing environments in a variety of form factors. This implementation, too, allows for coverage of larger distances and provides for a wider range of interactions thereby allowing a user to extend an appendage into a broader workspace while providing for multiple points of or comprehensive sensation or interaction without sacrificing user comfort with respect to any such interaction.

Circuitry for ultrasound devices is described. A multi-level pulser is described, which can support time-domain and spatial apodization. The multi-level pulser may be controlled through a software-defined waveform generator. In response to the execution of a computer code, the waveform generator may access master segments from a memory, and generate a stream of packets directed to pulsing circuits. The stream of packets may be serialized. A plurality of decoding circuits may modulate the streams of packets to obtain spatial apodization.

An imaging device includes a transducer that includes an array of piezoelectric elements formed on a substrate. Each piezoelectric element includes at least one membrane suspended from the substrate, at least one bottom electrode disposed on the membrane, at least one piezoelectric layer disposed on the bottom electrode, and at least one top electrode disposed on the at least one piezoelectric layer. Adjacent piezoelectric elements are configured to be isolated acoustically from each other. The device is utilized to measure flow or flow along with imaging anatomy.

Electronic device that allows controlling the route followed by an audio signal from one or more Audio Signal Input Sources through 2 or more Effects Units which modify said signal, and said signal is delivered to 1 or more Outputs, which allows selecting from which input the audio signal is originated, through which effects units is passed, in what order it does so, and to which outputs it is delivered, through a matrix of high-speed signal switching devices (analog or digital) with features of an audio signal that interconnects all possible combinations of Inputs and Outputs between ports to which Audio Signal Input Sources, External Effects Units and Outputs are connected, which is controlled by a digital device that allows the activation of the possible combinations at the User's choice; It further allows storing the desired combinations in a memory unit to be later retrieved and activated, through various embodiments of use such as the direct manipulation of the Device with physical controls, through an application within external wireless devices and/or compatible with MIDI.

Circuitry for ultrasound devices is described. A multi-level pulser is described, which can support time-domain and spatial apodization. The multi-level pulser may be controlled through a software-defined waveform generator. In response to the execution of a computer code, the waveform generator may access master segments from a memory, and generate a stream of packets directed to pulsing circuits. The stream of packets may be serialized. A plurality of decoding circuits may modulate the streams of packets to obtain spatial apodization.

Various techniques for driving phased array systems are described, specifically intended for acoustic phased arrays with applications to mid-air haptics, parametric audio, acoustic levitation and acoustic imaging, including a system: 1) that is capable of mitigating the effect of the changes in the air to provide a consistent haptic experience; 2) that produces trap points in air; 3) that defines phased-array optimization in terms of vectors for the production of more consistent haptic effects; 4) that defines one or more control points or regions in space via a controlled acoustic field; 5) that uses a reduced representation method for the construction of acoustic basis functions; 6) that performs efficient evaluation of complex-valued functions for a large quantity of throughput; 7) that generates a Krylov sub-space of a matrix; and 8) that maximizes an objective described by different control points and/or regions to those used to create the acoustic basis functions.

The present disclosure concerns an ultrasound system for providing tactile mid-air haptic feedback. As described herein, various embodiments of the invention can create a precise mid-air tactile sensation in mid-air on a body part of a user through use of an array of ultrasonic emitters. The array produces steerable focal points of ultrasonic energy that provide sufficient radiation pressure to be felt by the skin of the user. Such an implementation allows for multiple points of contact with immersive computing environments in a variety of form factors. This implementation, too, allows for coverage of larger distances and provides for a wider range of interactions thereby allowing a user to extend an appendage into a broader workspace while providing for multiple points of or comprehensive sensation or interaction without sacrificing user comfort with respect to any such interaction.