KR970014726A - Method and apparatus for generating a stethoscope sound by ultrasonic diagnosis - Google Patents

Method and apparatus for generating a stethoscope sound by ultrasonic diagnosis Download PDF

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Publication number
KR970014726A
KR970014726A KR1019950029910A KR19950029910A KR970014726A KR 970014726 A KR970014726 A KR 970014726A KR 1019950029910 A KR1019950029910 A KR 1019950029910A KR 19950029910 A KR19950029910 A KR 19950029910A KR 970014726 A KR970014726 A KR 970014726A
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South Korea
Prior art keywords
stethoscope sound
generating
stethoscope
sound
frequency spectrum
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KR1019950029910A
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Korean (ko)
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KR0163383B1 (en
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이기종
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이민화
주식회사 메디슨
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Priority to KR1019950029910A priority Critical patent/KR0163383B1/en
Publication of KR970014726A publication Critical patent/KR970014726A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/48—Diagnostic techniques
    • A61B8/488—Diagnostic techniques involving Doppler signals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7253—Details of waveform analysis characterised by using transforms
    • A61B5/7257—Details of waveform analysis characterised by using transforms using Fourier transforms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/46—Special adaptations for use as contact microphones, e.g. on musical instrument, on stethoscope

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Mathematical Physics (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physiology (AREA)
  • Psychiatry (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

본 발명은 초음파진단에 의하여 청진기소리를 발생시키는 방법 및 그 장치에 관한 것으로서, 본 발명은 도플러신호의 퓨리에변환에 의하여 얻어진 주파수 패턴에 해당하는 청진기소리를 발생시키므로, 정밀한 관측이 가능한 초음파진단기와 청감이 좋은 청진기의 장점을 모두 살릴 수 있는 방법 및 장치이다.The present invention relates to a method and a device for generating a stethoscope sound by ultrasonic diagnostic, the present invention generates a stethoscope sound corresponding to the frequency pattern obtained by the Fourier transform of the Doppler signal, so that the ultrasonic diagnostic device and hearing can be precisely observed It is a method and device that can take full advantage of this good stethoscope.

Description

초음파진단에 의하여 청진기소리를 발생시키는 방법 및 그 장치Method and apparatus for generating a stethoscope sound by ultrasonic diagnosis

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래의 초음파진단장치에 있어서 도플러신호의 주파수정보처리장치의 블럭도,1 is a block diagram of a frequency information processing apparatus of a Doppler signal in a conventional ultrasonic diagnostic apparatus.

제2도는 본 발명인 도플러신호의 주파수정보에 의하여 청진기소리를 발생시키는 장치의 블럭도,2 is a block diagram of an apparatus for generating a stethoscope sound based on frequency information of a Doppler signal of the present invention;

제3도는 본 발명의 응용예로서 본 발명에 의한 장치가 포함된 도플러 신호의 주파수정보처리장치의 블럭도.3 is a block diagram of a frequency information processing apparatus of a Doppler signal incorporating an apparatus according to the present invention as an application of the present invention.

Claims (3)

초음파진단에 의하여 청진기소리를 발생시키는 방법에 있어서, 초음파를 주사하여 되돌아오는 도플러신호의 I신호와 Q신호를 A/D 변환하는 제1단계: A/D변환된 데이타를 퓨리에 변환하여 주파수 스펙트럼을 얻는 제2단계: 특정 음원의 주파수 스펙트럼에 따른 청진기소리를 샘플링하여 저장하는 제3단계: 상기 제2단계에서 얻어진 주파수 스펙트럼 패턴에 따라 상기 제3단계에서 샘플링되어 있는 청진기소리를 발생시키는 제4단계를 포함하는 것을 특징으로 하는 초음파진단에 의하여 청진기소리를 발생시키는 방법.A method of generating a stethoscope sound by ultrasonic diagnosis, the first step of A / D conversion of the I and Q signals of the Doppler signal returned by scanning the ultrasound: Fourier transform the A / D converted data to the frequency spectrum Acquiring the second step: Sampling the stethoscope sound according to the frequency spectrum of the specific sound source Third step: Generating the stethoscope sound sampled in the third step according to the frequency spectrum pattern obtained in the second step Method of generating a stethoscope sound by the ultrasonic diagnostic comprising a. 제1항에 있어서, 상기 제4단계는 퓨리에 변환에 의하여 얻어진 주파수 스펙트럼에 의하여 샘플링된 청진기 소리의 고저, 강약이 조절되어 발생시키는 것임을 특징으로 하는 초음파진단에 의하여 청진기소리를 발생시키는 방법.The method of claim 1, wherein the fourth step is to generate the stethoscope sound by controlling the height and intensity of the stethoscope sound sampled by the frequency spectrum obtained by the Fourier transform. 초음파진단에 의하여 청진기소리를 발생시키는 장치에 있어서, 초음파를 주사하여 되돌아오는 도플러신호와 I신호와 Q신호를 A/D 변환하는 A/D 변환기: 상기 A/D 변환된 데이타를 퓨리에 변환하여 주파수 스펙트럼을 얻는 FFT 처리부; 상기 FFT 처리부로부터 얻어진 주파수 스펙트럼 패턴에 따라서 특정 음원의 주파수 스펙트럼 패턴에 따라서 샘플링되어 있는 각 음원에 의한 청진기소리 정보를 발생시키는 웨이브테이블합성부; 상기 웨이브테이블합성부로부터 출력되는 청진기소리 정보를 실제 청진기소리의 신호로 변환하여주는 음향코덱; 및 상기 음향코덱으로부터 출력되는 청진기소리의 신호를 청진기소리로 출력하는 스피커를 포함하는 것임을 특징으로 하는 초음파진단에 의하여 청진기소리를 발생시키는 장치.An apparatus for generating a stethoscope sound by ultrasonic diagnosis, the apparatus comprising: an A / D converter for A / D converting a Doppler signal, an I signal, and a Q signal returned by scanning an ultrasonic wave; An FFT processor obtaining a spectrum; A wave table synthesizing unit for generating stethoscope sound information for each sound source sampled according to the frequency spectrum pattern of a specific sound source according to the frequency spectrum pattern obtained from the FFT processor; An acoustic codec for converting stethoscope sound information output from the wave table synthesizer into a signal of an actual stethoscope sound; And a speaker for outputting a signal of a stethoscope sound output from the acoustic codec as a stethoscope sound. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950029910A 1995-09-13 1995-09-13 Stethoscopic sound generating method and device thereof by ultrasonic diagnosis KR0163383B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950029910A KR0163383B1 (en) 1995-09-13 1995-09-13 Stethoscopic sound generating method and device thereof by ultrasonic diagnosis

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Application Number Priority Date Filing Date Title
KR1019950029910A KR0163383B1 (en) 1995-09-13 1995-09-13 Stethoscopic sound generating method and device thereof by ultrasonic diagnosis

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KR970014726A true KR970014726A (en) 1997-04-28
KR0163383B1 KR0163383B1 (en) 1998-12-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040019470A (en) * 2002-08-28 2004-03-06 김선일 Method and apparatus for monitoring fetal heart rate and sound using a multi-channel doppler effect
KR100483783B1 (en) * 2001-09-17 2005-04-20 지이 메디컬 시스템즈 글로발 테크놀러지 캄파니 엘엘씨 Doppler signal processing apparatus and ultrasonic diagnostic apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100483783B1 (en) * 2001-09-17 2005-04-20 지이 메디컬 시스템즈 글로발 테크놀러지 캄파니 엘엘씨 Doppler signal processing apparatus and ultrasonic diagnostic apparatus
KR20040019470A (en) * 2002-08-28 2004-03-06 김선일 Method and apparatus for monitoring fetal heart rate and sound using a multi-channel doppler effect

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