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Ultrasound Signal Analog Beamformer/Beamforming

A technology for simulating beams and formers, applied in the field of ultrasound, which can solve the problems of being unsuitable for high-density ASICs and being expensive

Active Publication Date: 2021-01-05
B K MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, this approach uses LRC delay lines, which are expensive and very unsuitable for high-density ASICs, with inductive elements placed outside the ASIC

Method used

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  • Ultrasound Signal Analog Beamformer/Beamforming
  • Ultrasound Signal Analog Beamformer/Beamforming
  • Ultrasound Signal Analog Beamformer/Beamforming

Examples

Experimental program
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Embodiment Construction

[0027] Figure 4 An imaging system 402 is illustrated, such as an ultrasound imaging system. Imaging system 402 includes at least one 1D or 2D transducer array 404 having one or more (eg, 32, 64, 128, 196, 256, etc.) transducer elements 406 . Transducer array 404 may be linear and / or curved and / or full or sparse. The transducer array 404 may be used to collect data collected for A-mode, B-mode, etc. individually and in combination with other information.

[0028] Imaging system 402 also includes transmit circuitry 408 that controls the phase and / or timing of actuation of each of elements 406 , which allows steering and / or focusing of the transmitted beam. Imaging system 402 also includes receive circuitry 410 that routes at least the analog RF signal from element 406 for processing. Imaging system 402 may also include amplifiers and / or other components to pre-process analog RF signals. Imaging system 402 also includes a switch 412 that toggles between transmit circuitry 408...

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PUM

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Abstract

An apparatus (402) includes an analog beamformer (414) that receives a set of analog RF signals. A set of analog RF signals is generated from a corresponding set of transducer elements (406) receiving the ultrasound echo signals. The analog beamformer includes a delay network (416) having a set of phase shifting networks (506). Each phase shifting network of the set of phase shifting networks processes a different one of the analog RF signals of the set of analog RF signals. Each phase shifting network of the set of phase shifting networks adds a delay to a corresponding analog RF signal, thereby producing a time aligned set of delayed analog RF signals. The set of phase shifting networks does not use inductive elements to determine or add the delay. The analog beamformer also includes a summer (504) that sums the delayed analog RF signals to produce an analog beam sum.

Description

technical field [0001] The following relates generally to ultrasound (US) and more specifically to ultrasound signal analog beamformers and / or beamforming, and is described with particular application to beamformers and / or beamforming in connection with ultrasound imaging. Background technique [0002] Ultrasound imaging already provides useful information about the internal properties of the subject or object under examination. Typically, an ultrasound scanner includes a transducer array having transducer elements that receive echoes (acoustic signals) reflected from structures in the field of view. In B-mode imaging, the echoes are beamformed to generate scan lines that are processed to generate a two-dimensional image of the scan plane or field of view, which can be visually displayed by a monitor. [0003] Beamforming operations already include "delay and sum" operations. Examples are discussed in conjunction with FIG. 1 . In FIG. 1 , circular sound waves 102 , 104 , ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/52G01S15/89G10K11/34
CPCG01S7/52025G01S15/8915G10K11/346G01S7/52044G01S7/52085
Inventor J·P·巴格N·瓦尔迪H·延森
Owner B K MEDICAL