EP 0169123 B1 19890315 - ELECTRONIC FOCUSING DEVICE FOR ULTRASONIC WAVES
Title (en)
ELECTRONIC FOCUSING DEVICE FOR ULTRASONIC WAVES
Publication
Application
Priority
FR 8410942 A 19840710
Abstract (en)
[origin: US4779242A] A device for electronic focusing of ultrasonic waves in which the focusing means comprise a hierarchized assembly of elementary circuits each provided with a delay line connected in parallel with a direct line to a centralizing unit and in which the time-delay of the delay line in a circuit is a function of the relative time-delay which must exist between the two cells or the two circuits connected to said circuit. It is shown that, in the invention, a technological advance is achieved by thus minimizing the maximum time-delays to be established in the case of each delay line.
IPC 1-7
IPC 8 full level
G01N 29/26 (2006.01); A61B 8/00 (2006.01); A61B 8/14 (2006.01); G01N 29/04 (2006.01); G01N 29/24 (2006.01); G01N 29/44 (2006.01); G10K 11/34 (2006.01)
CPC (source: EP US)
G10K 11/346 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE GB IT NL
DOCDB simple family (publication)
EP 0169123 A1 19860122; EP 0169123 B1 19890315; AT E41543 T1 19890415; DE 3568886 D1 19890420; FR 2567670 A1 19860117; FR 2567670 B1 19880122; JP H0656381 B2 19940727; JP S6135350 A 19860219; US 4779242 A 19881018
DOCDB simple family (application)
EP 85401266 A 19850625; AT 85401266 T 19850625; DE 3568886 T 19850625; FR 8410942 A 19840710; JP 15215285 A 19850710; US 75259985 A 19850708