JPS5728272A - Ultrasonic image pickup device - Google Patents

Ultrasonic image pickup device

Info

Publication number
JPS5728272A
JPS5728272A JP10415280A JP10415280A JPS5728272A JP S5728272 A JPS5728272 A JP S5728272A JP 10415280 A JP10415280 A JP 10415280A JP 10415280 A JP10415280 A JP 10415280A JP S5728272 A JPS5728272 A JP S5728272A
Authority
JP
Japan
Prior art keywords
received
matching filter
frequencies
chirp
image pickup
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10415280A
Other languages
Japanese (ja)
Inventor
Hirohide Miwa
Nobushiro Shimura
Tadahiko Yanajima
Keiichi Murakami
Motoyoshi Okujima
Yuichiro Ito
Kunihiro Tanigawa
Hideo Sei
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP10415280A priority Critical patent/JPS5728272A/en
Publication of JPS5728272A publication Critical patent/JPS5728272A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging

Abstract

PURPOSE:To enable the transmission and reception to be performed at the same time even through central frequencies are close to each other, by modulating vibrating units which have different frequencies and a plurality of electricity-sound transducer elements, transmitting ultrasonic signals, and separating the received signals by a matching filter. CONSTITUTION:The output of an up-chirp wave oscillator 100 whose frequency is fo drives the vibrator 106 via a driver 102 and a switch 104. The ultrasonic wave T1 is sent to the inside of a body to be checked A, and reflected by an internal organ C. The reflected signal R1 is received by the vibrator 106. The received signal is outputted from the matching filter 110 through the switch 104, and receiving circuit 108. The output of a down-chirp wave oscillator 101 whose frequency is f1 is transmitted and received in the same way. The switching of transmission and reception are performed by the control of a timing circuit 112 at the same time. Therefore, e.g., cross talk N2 of the wave f1 is inputted to the receiving circuit 108, but it is attenuated by the matching filter 110 since the direction of the chirp modulation is different. Even though the frequencies f0 and f1 are close to each other, interference is not caused, and this is suitable for the image pickup of the inside of a human body.
JP10415280A 1980-07-29 1980-07-29 Ultrasonic image pickup device Pending JPS5728272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10415280A JPS5728272A (en) 1980-07-29 1980-07-29 Ultrasonic image pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10415280A JPS5728272A (en) 1980-07-29 1980-07-29 Ultrasonic image pickup device

Publications (1)

Publication Number Publication Date
JPS5728272A true JPS5728272A (en) 1982-02-15

Family

ID=14373089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10415280A Pending JPS5728272A (en) 1980-07-29 1980-07-29 Ultrasonic image pickup device

Country Status (1)

Country Link
JP (1) JPS5728272A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59168845A (en) * 1983-03-16 1984-09-22 横河メディカルシステム株式会社 Ultrasonic transmitting and receiving system in ultrasonic imaging apparatus
JPS60114244A (en) * 1983-11-28 1985-06-20 松下電器産業株式会社 Ultrasonic diagnostic apparatus
JPS60241177A (en) * 1984-05-16 1985-11-30 Mitsubishi Electric Corp Form recognizer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59168845A (en) * 1983-03-16 1984-09-22 横河メディカルシステム株式会社 Ultrasonic transmitting and receiving system in ultrasonic imaging apparatus
JPH029816B2 (en) * 1983-03-16 1990-03-05 Yokokawa Medeikaru Shisutemu Kk
JPS60114244A (en) * 1983-11-28 1985-06-20 松下電器産業株式会社 Ultrasonic diagnostic apparatus
JPH0249104B2 (en) * 1983-11-28 1990-10-29 Matsushita Electric Ind Co Ltd
JPS60241177A (en) * 1984-05-16 1985-11-30 Mitsubishi Electric Corp Form recognizer

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