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. 09, 2013
Filed:
Jul. 13, 2007
Jing-wen Tsao, Mitaka, JP;
Takayuki Ohnishi, Mitaka, JP;
Kazuhiro Amino, Mitaka, JP;
Masayuki Kosuge, Mitaka, JP;
Jing-Wen Tsao, Mitaka, JP;
Takayuki Ohnishi, Mitaka, JP;
Kazuhiro Amino, Mitaka, JP;
Masayuki Kosuge, Mitaka, JP;
Hitachi Aloka Medical, Ltd., Mitaka-shi, Tokyo, JP;
Abstract
An ultrasound diagnosis apparatus having a transmission circuit which generates a transmission signal is provided. The transmission signal corresponds to a combined waveform of a trapezoidal waveform and an impulse-shaped waveform (impulse portion). In an example transmission signal, a front slope portion, a flat portion, and a rear slope portion exist in a positive polarity side. The impulse portion has a shape which protrudes from an offset level over a base line into an opposite polarity side. Because the center frequency of the trapezoidal wave form is near the DC component, the trapezoidal wave form can substantially be ignored. The impulse portion has a large amplitude, but because the impulse portion exists over both polarities, there is no need to apply a special high voltage countermeasure for each polarity in designing the transmission circuit. A trapezoidal wave form of an opposite polarity may be added in front of the trapezoidal waveform.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile