The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 1983
Filed:
Feb. 05, 1981
Keiki Yamaguchi, Musashino, JP;
Yokogawa Electric Works, Tokyo, JP;
Abstract
In an ultrasonic diagnostic equipment which irradiates a subject with ultrasonic waves and receives reflected waves responsive thereto so as to provide a tomogram of the subject on the basis of the received signals, two tap-changing type phased arrays having different focal sections are alternately operated during a period of the reception of the reflected waves, and while one of the phased arrays is being operated, the tap changing of the other phased array for altering the focal section is made. In spite of reduced numbers of high-class switches and phased arrays used, spike noise due to the changes-over of switches during the dynamic focusing are prevented.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile