Title:
ULTRASONIC DIAGNOSING APPARATUS
Document Type and Number:
Japanese Patent JPH0523340
Kind Code:
A
Abstract:
PURPOSE: To obtain an ultrasonic tomographic image of a high quality by a processing after the removal of an undesired echo signal part of an arbitrary level.
CONSTITUTION: A signal from an LPF5 is supplied to an inversion amplifier 6 to be added to a signal of an amplifier 1. A signal of an LPF7 is added to signal of an inversion amplifier 2 through an amplifier 8. The resulting signal is outputted by a level set optionally from a level detector 3 and outputted to the following processing circuit as signal for removing an undesired signal from the echo signal through an amplifier 4.
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Inventors:
ICHIKI MASAAKI
KUBO KOJI
KUBO KOJI
Application Number:
JP18613891A
Publication Date:
February 02, 1993
Filing Date:
July 25, 1991
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
A61B8/14; G01N29/22; G01N29/44; (IPC1-7): A61B8/14; G01N29/22
Attorney, Agent or Firm:
Akira Kobiji (2 outside)
Next Patent: JPH0523341