JPS5642158A - Receiving device for ultrasonic wave - Google Patents

Receiving device for ultrasonic wave

Info

Publication number
JPS5642158A
JPS5642158A JP11726379A JP11726379A JPS5642158A JP S5642158 A JPS5642158 A JP S5642158A JP 11726379 A JP11726379 A JP 11726379A JP 11726379 A JP11726379 A JP 11726379A JP S5642158 A JPS5642158 A JP S5642158A
Authority
JP
Japan
Prior art keywords
signal
breast
stc
circuit
surface part
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.)
Granted
Application number
JP11726379A
Other languages
Japanese (ja)
Other versions
JPS624980B2 (en
Inventor
Takeshi Kidokoro
Kazuhiro Iinuma
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11726379A priority Critical patent/JPS5642158A/en
Publication of JPS5642158A publication Critical patent/JPS5642158A/en
Publication of JPS624980B2 publication Critical patent/JPS624980B2/ja
Granted 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
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques

Abstract

PURPOSE:To make the device fitted especially for an ultrasonic diagnosis by the use of a water immersion method by a method wherein a variable gain amplifier and a gain controlling circuit are provided to ensure the application of an STC method and thereby a tomogram of uniform density and good quality is obtained from the surface part of a subject. CONSTITUTION:An ultrasonic wave receiving signal VS is supplied to the gain controlling circuit 10 as well as the variable gain amplifier 9. The variable gain amplifier 9 controls the above signal VS for its gain based on the output of the gain controlling circuit 10. The circuit 10 is constituted as shown in the figure. By applying the comparative extraction and the integrating treatment to the signal VS by a comparator 22 and an integrating circuit 23, noise signal components from the dust, air bubbles and the like in a ultrasonic wave propagating medium 2, as well as single pulses from a vinyl film 4 and the like, are removed respectively and thus reflected signals from the surface part of a breast 3 can be detected. As a result, by generating a gain controlling a signal STC in synchronization with the above detection timing, the STC can be operated surely from the surface part of the breast 3 and thus the same texture of the breast 3 can be indicated by an image of uniform density, in depth and with high resolution.
JP11726379A 1979-09-14 1979-09-14 Receiving device for ultrasonic wave Granted JPS5642158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11726379A JPS5642158A (en) 1979-09-14 1979-09-14 Receiving device for ultrasonic wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11726379A JPS5642158A (en) 1979-09-14 1979-09-14 Receiving device for ultrasonic wave

Publications (2)

Publication Number Publication Date
JPS5642158A true JPS5642158A (en) 1981-04-20
JPS624980B2 JPS624980B2 (en) 1987-02-02

Family

ID=14707425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11726379A Granted JPS5642158A (en) 1979-09-14 1979-09-14 Receiving device for ultrasonic wave

Country Status (1)

Country Link
JP (1) JPS5642158A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002243841A (en) * 2001-02-16 2002-08-28 Koden Electronics Co Ltd Ultrasonic measuring device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02111275U (en) * 1989-02-25 1990-09-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002243841A (en) * 2001-02-16 2002-08-28 Koden Electronics Co Ltd Ultrasonic measuring device

Also Published As

Publication number Publication date
JPS624980B2 (en) 1987-02-02

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