An ultrasonic transmitting and receiving apparatus capable of obtaining ultrasonic images with uniform image quality independently of sound ray directions. The apparatus includes: an ultrasonic transducer array including plural ultrasonic transducers; a drive signal generating unit for generating drive...http://www.google.fr/patents/US20040187583?utm_source=gb-gplus-shareBrevet US20040187583 - Ultrasonic transmitting and receiving apparatus
Numéro de demande: 10/804,064 Numéro de publication: US 2004/0187583 A1 Date de dépôt: 19 mars 2004 Brevet délivré: US6910380 ( Date de délivrance 28 juin 2005)
