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Patent Searching and Data


Title:
PORTABLE ELECTROCARDIOGRAM INFORMATION COLLECTOR
Document Type and Number:
Japanese Patent JPH0546686
Kind Code:
A
Abstract:

PURPOSE: To make a device compact and light, and to prevent the device from being an obstacle to the daily life of the user even at the time of mounting it on a human body by using a storage medium which directly stores a measured result as a semiconductor memory.

CONSTITUTION: An electrocardiographic signal is detected by an analog electric signal by electrodes 112a-112d being electrocardiographic sensors. This electrocardiographic signal and a reference signal (common mode noise) detected by an indifference electrode 114 are differential-amplified by amplifier circuits 111a 111d. The electrocardiographic signal is selected by a multiplexer 108, and inputted to an analog/digital conversion circuit 105. The output data ADDATA converted into the digital signal are stored in a storage circuit (random access memory) 101 as the electrocardiogram information. Thus, the access to the measured result can be attained at a speed which is several hundreds of times as fast as that at the time of the measurement by adopting the semiconductor memory for the storage circuit 101, so that the high speed of the analysis of symptoms by a computer or the like can be attained.


Inventors:
ONISHI TADASHI
KURIYAMA HIROYUKI
KITAHARA YOSHINORI
HAMAMOTO NOBUO
SUZUKI TATSUTO
OBAYASHI HIDEHITO
NAGATA MINORU
ODA ISAMU
Application Number:
JP20913691A
Publication Date:
February 26, 1993
Filing Date:
August 21, 1991
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
G06F17/40; G16H10/60; A61B5/332; (IPC1-7): A61B5/0404; G06F15/42; G06F15/74
Attorney, Agent or Firm:
Ogawa Katsuo