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1. WO1996003919 - METHOD AND APPARATUS FOR A BASEBAND PROCESSOR OF A RECEIVE BEAMFORMER SYSTEM

Publication Number WO/1996/003919
Publication Date 15.02.1996
International Application No. PCT/US1995/009902
International Filing Date 04.08.1995
Chapter 2 Demand Filed 01.03.1996
IPC
G01S 7/52 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
52of systems according to group G01S15/58
G01S 15/89 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
89for mapping or imaging
G10K 11/34 2006.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
18Methods or devices for transmitting, conducting or directing sound
26Sound-focusing or directing, e.g. scanning
34using electrical steering of transducer arrays, e.g. beam steering
CPC
G01S 15/8918
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
89for mapping or imaging
8906Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
8909using a static transducer configuration
8915using a transducer array
8918the array being linear
G01S 15/8927
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
89for mapping or imaging
8906Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
8909using a static transducer configuration
8915using a transducer array
8927using simultaneously or sequentially two or more subarrays or subapertures
G01S 15/895
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
89for mapping or imaging
8906Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
895characterised by the transmitted frequency spectrum
G01S 15/8979
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
89for mapping or imaging
8906Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
8979Combined Doppler and pulse-echo imaging systems
G01S 15/8988
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
89for mapping or imaging
8906Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
8979Combined Doppler and pulse-echo imaging systems
8988Colour Doppler imaging
G01S 15/8993
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
89for mapping or imaging
8906Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
8993Three dimensional imaging systems
Applicants
  • ACUSON CORPORATION [US/US]; 1220 Charleston Road Mountain View, CA 94039, US
Inventors
  • WRIGHT, J., Nelson; US
  • COLE, Christopher, R.; US
  • GEE, Albert; US
Agents
  • SILLER, Gustavo, Jr.; Willian Brinks Hofer Gilson & Lione NBC Tower - Suite 3600 455 North Cityfront Plaza Drive Chicago, IL 60611-5599, US
Priority Data
08/286,51005.08.1994US
08/286,65805.08.1994US
08/434,16002.05.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR A BASEBAND PROCESSOR OF A RECEIVE BEAMFORMER SYSTEM
(FR) PROCEDE ET APPAREIL POUR UN PROCESSEUR DE BANDE DE BASE D'UN SYSTEME CONFORMATEUR DE FAISCEAU EN MODE RECEPTION
Abstract
(EN)
This invention presents a multi-beam base band processor (R-125) for making post-beam formation adjustments to the complex (imphase/quadrature) pre-detection scan line samples acquired from a receive beam former (R-100) of an ultrasound imaging system (R-20). Specifically, the invention includes a programmable finite impulse response (FIR) filter and a programmable complex multiplier. The programmable filter performs signal shaping and sample rate conversion. The signal shaping capability may be used to compensate for transducer and analog signal path responses, to increase signal to noise ratio (SNR) by rejecting out of band noise frequencies, to operate as a matched filter to the transmitted waveform shape, and to act as both a smoothing and anti-alias filter during rate conversion operation. The programmable multiplier permits both amplitude and phase adjustments of the complex data that assures amplitude and phase coherency between acquired scan lines, compensating for the effects of a selected scan format or the differences in ultrasound frequencies used to produce each scan line.
(FR)
Cette invention concerne un processeur de bande de base (R-125) à faisceaux multiples pour réaliser des ajustements, après la formation du faisceau, sur les échantillons complexes des lignes de balayage de prédétection (en phase/en quadrature) obtenus d'un conformateur de faisceau en réception (R-100) d'un système d'imagerie (R-20) utilisant les ultrasons. Plus particulièrement, le système de l'invention comprend un filtre programmable à réponse impulsionnelle finie et un multiplicateur programmable complexe. Le filtre programmable effectue la mise en forme des signaux et la conversion de la cadence d'échantillonnage. Le système de mise en forme des signaux peut être utilisé pour compenser les réponses des transducteurs et des trajets des signaux analogiques, pour augmenter le rapport signal/bruit en rejetant les fréquences de bruit hors bande, pour fonctionner comme un filtre adapté à la forme d'onde transmise, et faire office à la fois de filtre de lissage etde filtre anti-repliement durant l'opération de conversion de cadence. Le multiplicateur programmable permet des ajustements de phase et d'amplitude des données complexes assurant une cohérence d'amplitude et de phase entre les lignes de balayage reçues, ce qui compense les effets du format de balayage sélectionné ou les différences dans les fréquences des ultrasons utilisées pour produire chaque ligne de balayage.
Also published as
DE19581713
Latest bibliographic data on file with the International Bureau