Title:
ULTRASONIC DIAGNOSTIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/016241
Kind Code:
A1
Abstract:
In the present invention, a biosignal processing circuit includes a level adjustment circuit, an amplifier circuit, conversion circuits (ADCs), etc. In feedback control performed by the level adjustment circuit, the DC level of an analog signal to be inputted to the amplifier circuit is automatically adjusted to an input reference level of the amplifier circuit. Then, the gain of the amplifier circuit is adjusted such that a synchronization signal is properly generated.
Inventors:
TANAKA SATOSHI (JP)
TAKENAKA TOMOKO (JP)
TAKENAKA TOMOKO (JP)
Application Number:
PCT/JP2017/022083
Publication Date:
January 25, 2018
Filing Date:
June 15, 2017
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
A61B8/00
Foreign References:
| JP2000210288A | 2000-08-02 | |||
| JP2004351022A | 2004-12-16 | |||
| JPS55116343A | 1980-09-06 | |||
| JP2002272739A | 2002-09-24 |
Attorney, Agent or Firm:
YKI PATENT ATTORNEYS (JP)
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