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:
Sep. 27, 2016
Filed:
Oct. 27, 2015
Siemens Aktiengesellschaft, Munich, DE;
George Burcea, Ajax, CA;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An ultrasonic pulse-echo ranging device includes a piezo-electric transducer, a transmitter, a receiver, a first transformer having a primary winding coupled to an output of the transmitter and a secondary winding connected to the transducer, and a second transformer having a primary winding coupled to an input of the receiver and a secondary winding connected to the transducer, where the secondary windings of the first and second transformers are in series with the transducer, a first switching element is parallel with the primary winding of the first transformer and controlled to short-circuit this primary winding when the receiver receives the signals from the transducer, and where a second switching element is parallel with the primary winding of the second transformer and controlled to short-circuit this primary winding of when the transmitter drives the transducer to optimize the signal transfer to and from the piezo-electric transducer.