EP 0215972 B1 19901205 - SWITCH MATRIX
Title (en)
SWITCH MATRIX
Publication
Application
Priority
EP 85112072 A 19850924
Abstract (en)
[origin: US4890267A] A switch matrix for a transceiver of ultrasonic waves containing a configuration of electroacoustic transducer elements in which in succession proceeding over the arrangement a group of transducer elements can be activated, contains a number of inputs (K1, K2, K3, K4), the number corresponding to the number of transducer elements of a group which are each connected to one of the activated transducer elements, an equal number of outputs (R1, R2, R3, R4) connected to delay elements and a large number of switches T11, T12, . . . , T44) to establish each of the connections required for electronic focusing between the inputs and the outputs. Each input line (K1) is connected to a number of switches (T11, T12, T13, T14), this number corresponding to the number of transducer elements of a group. The switches of the switch matrix are activated through a control circuit (50) over a number of control lines (L1, L2, L3, L4), this number corresponding to the number of transducer elements of a group. Each of these control lines is connected to a number of transducer elements, the number corresponding to the number of transducer elements of a group.
IPC 1-7
IPC 8 full level
G10K 11/34 (2006.01)
CPC (source: EP US)
G10K 11/345 (2013.01 - EP US)
Citation (examination)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
US 4890267 A 19891226; DE 3580848 D1 19910117; EP 0215972 A1 19870401; EP 0215972 B1 19901205
DOCDB simple family (application)
US 91069786 A 19860923; DE 3580848 T 19850924; EP 85112072 A 19850924