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:
Jan. 20, 2009
Filed:
Apr. 18, 2003
Morio Nishigaki, Fujisawa, JP;
Takao Suzuki, Yokohama, JP;
Morio Nishigaki, Fujisawa, JP;
Takao Suzuki, Yokohama, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An ultrasonic diagnostic equipment capable of reducing cost by reducing the number of transmission drive circuits for generating transmission pulse is disclosed. High voltage switches for determining an aperture by selecting eight pieces from among transducer elements to which transmission pulses are applied, and low voltage switches for selecting 16 pieces from among the transducer elements to receive ultrasonic echo are provided individually. Regarding the high voltage switches for transmission, four inputs are integrated into one, and a distribution circuit of 1:4 is constructed. Regarding the low voltage switches for reception, two outputs are integrated into one, and a multiplexer of 2:1 is constructed. Linear scanning is performed by only eight pulsers (transmission drive circuits). The high voltage switches for transmitting ultrasonic waves and the low voltage switches for receiving ultrasonic waves are separated from each other.