Seiko Epson Corporation

Hiroshi Kasahara

Kazuhiko Amano

Hitoshi Ishiyama

Kazuo Kodama

Tatsuya Shimoda

Tsugio Nakamura

Kazuo Uebaba

A pulse waveform of a living body is detected and is analyzed using peak point data or timing data to perform a diagnosis of a condition of the body.

Diagnostic apparatus for analyzing arterial pulse waves

A pulse wave analyzing apparatus that detects a pulse wave from a living body and computes a waveform distortion factor and determines a waveform shape for performing a diagnosis of a condition of the living body.

An information processing system that is configured in such a manner that computational processing is performed on input data in accordance with a processing sequence, for outputting data, comprises: a plurality of arithmetic units (-to-x), each computing at an arithmetic precision 2bits (where m is a natural number) based on the processing sequence; and a plurality of cascade connection terminals for cascading these arithmetic units each other. When the maximum arithmetic precision that is required during computational processing is 2bits (where n is a natural number and is fixed), x numbers of (where x is a natural number) the arithmetic units are cascaded in a manner such that the inequality x&#x2267;2/2is satisfied. When an arithmetic precision of 2bits (where n1&#x2266;n, and n1 is variable) is necessary during computational processing, x1 numbers of the arithmetic units are cascaded in a manner such that the inequality x1&#x2267;2/2(where x1 is a natural number and is variable) is satisfied. This makes it possible to easily implement an information processing system for performing computations to any desired precision in a hardware manner, and also makes it possible to support a simple hardware-based method of expanding the arithmetic precision.

Information processing system, encryption/decryption system, system LSI, and electronic equipment

The present invention relates to a diagnosis apparatus for analyzing arterial pulse waves comprising a database in which is stored data showing the relationship between data representing a pulse wave of a living body and teaching data representing conditions of the living body; and a micro-computer for outputting teaching data corresponding to the pulse wave detected from the living body in the teaching data on the basis of the pulse wave detected from the living body and the stored data inside database . As a result, it becomes possible to perform diagnoses equivalent to a skilled doctor.

An information processing system that is configured in such a manner that computational processing is performed on input data in accordance with a processing sequence, for outputting data, comprises: a plurality of arithmetic units ( - to -x), each computing at an arithmetic precision 2 bits (where m is a natural number) based on the processing sequence; and a plurality of cascade connection terminals for cascading these arithmetic units each other. When the maximum arithmetic precision that is required during computational processing is 2 bits (where n is a natural number and is fixed), x numbers of (where x is a natural number) the arithmetic units are cascaded in a manner such that the inequality x&gE;2 /2 is satisfied. When an arithmetic precision of 2 bits (where n &lE;n, and n is variable) is necessary during computational processing, x numbers of the arithmetic units are cascaded in a manner such that the inequality x &gE;2 /2 (where x is a natural number and is variable) is satisfied. This makes it possible to easily implement an information processing system for performing computations to any desired precision in a hardware manner, and also makes it possible to support a simple hardware-based method of expanding the arithmetic precision.

Information processing system, enciphering/deciphering system, system LSI, and electronic apparatus

An FFT treating section (,) carries out the frequency analysis of a pulse waveform MHj excluding a body movement component to yield pulse wave analysis data MKD and then a tidal wave-character extracting section (,) and a dicrotic wave-character extracting section (,) yield a tidal wave-character data (TWD) and a dicrotic wave-character data (DWD) showing the characteristics of a tidal wave and dicrotic wave respectively. Then, a pulse condition judging section (,) yields pulse condition data (ZD) on the basis of this data (TWD, DWD) and in succession a notifying section (,) advises of the pulse condition of a subject.

Pulse wave examination apparatus, blood pressure monitor, pulse waveform monitor, and pharmacological action monitor

The present invention relates to a diagnosis apparatus for analyzing arterial pulse waves comprising a database 26 in which is stored data showing the relationship between data representing a pulse wave of a living body and teaching data representing conditions of the living body; and a micro-computer 21 for outputting teaching data corresponding to the pulse wave detected from the living body in the teaching data on the basis of the pulse wave detected from the living body and the stored data inside database 26. As a result, it becomes possible to perform diagnoses equivalent to a skilled doctor.

Growing community of inventors

Kashiwa, Japan

Hiroshi Kasahara