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:
Apr. 11, 2017
Filed:
Mar. 24, 2015
Freescale Semiconductor, Inc., Austin, TX (US);
Josef Maria Joachim Kruecken, Munich, DE;
Andreas Laudenbach, Haag, DE;
NXP USA, Inc., Austin, TX (US);
Abstract
The present application relates to a pulse generator for energizing an ultrasonic transducer, a method of operating thereof and an ultrasonic distance sensing system comprising the pulse generator. The pulse generator is arranged to generate an excitation pulse sequence comprising a first number of pulses; to generate a cancellation pulse sequence comprising at least a fractional pulse, wherein the cancellation pulse sequence has a phase shift of about 180° in relation to the excitation pulse sequence; and to output at an output of the generator the excitation pulse sequence and the cancellation pulse sequence forming an energizing pulse sequence to the ultrasonic transducer.