EP 0170072 B1 19890927 - PHASED-ARRAY APPARATUS
Title (en)
PHASED-ARRAY APPARATUS
Publication
Application
Priority
DE 3425705 A 19840712
Abstract (en)
[origin: US4829491A] Phased-array apparatus has a number of ultrasonic transducer elements (E1 to E64) to which are associated delay line elements (M1, T1 to M64, T64, W1-1, W1-2, N1 to W16-1, W16-2, N16; W1 to W16; VL1 to VL64, VR1 to VR16) to provide reception. In order that the control angle may be adjusted with high accuracy, according to the inventive principles delay line elements are provided for the received signals with a short and with a long delay, and several adjacent channels are combined for signal processing. Due to this arrangement, economical constructions of embodiments of the invention are realized.
IPC 1-7
IPC 8 full level
A61B 8/00 (2006.01); G01N 29/24 (2006.01); G01N 29/26 (2006.01); G01S 7/52 (2006.01); G01S 7/523 (2006.01); G10K 11/34 (2006.01)
CPC (source: EP US)
G10K 11/346 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE FR GB IT NL
DOCDB simple family (publication)
EP 0170072 A1 19860205; EP 0170072 B1 19890927; AT E46783 T1 19891015; DE 3425705 A1 19860116; DE 3573341 D1 19891102; JP H0778492 B2 19950823; JP S6151560 A 19860314; US 4829491 A 19890509
DOCDB simple family (application)
EP 85108128 A 19850701; AT 85108128 T 19850701; DE 3425705 A 19840712; DE 3573341 T 19850701; JP 14987985 A 19850708; US 74596985 A 19850617