JPS57101776A - Ultrasonic video signal device - Google Patents

Ultrasonic video signal device

Info

Publication number
JPS57101776A
JPS57101776A JP55178398A JP17839880A JPS57101776A JP S57101776 A JPS57101776 A JP S57101776A JP 55178398 A JP55178398 A JP 55178398A JP 17839880 A JP17839880 A JP 17839880A JP S57101776 A JPS57101776 A JP S57101776A
Authority
JP
Japan
Prior art keywords
effective
deflecting angle
beam deflecting
caliber
angle theta
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
JP55178398A
Other languages
Japanese (ja)
Inventor
Satoshi Matsuo
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 JP55178398A priority Critical patent/JPS57101776A/en
Publication of JPS57101776A publication Critical patent/JPS57101776A/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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52046—Techniques for image enhancement involving transmitter or receiver
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering

Abstract

PURPOSE:To reduce a fluctuation in an effective beam pattern due to a beam deflecting angle, by a method wherein an effective oscillator caliber is controlled in accordance with the beam deflecting angle. CONSTITUTION:The number of soscillators, consisting of an effective oscillator train, is controlled by a scanning controller SC in accrodance with the beam deflecting angle theta so that an effective oscillating caliber D to an estimated nondispersion beam diameter DB is brought to D=DP/sintheta. This causes increasing of the effective oscillator caliber D as a beam deflecting angle theta increases, obtains a constantly uniform beam pattern irrespective of the beam deflecting angle theta of a sector scanning, and forms tomogram having a natural uniformity such that parts, being at an equal distance from a probe P, are all equal in term of the sctor scanning.
JP55178398A 1980-12-17 1980-12-17 Ultrasonic video signal device Pending JPS57101776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55178398A JPS57101776A (en) 1980-12-17 1980-12-17 Ultrasonic video signal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55178398A JPS57101776A (en) 1980-12-17 1980-12-17 Ultrasonic video signal device

Publications (1)

Publication Number Publication Date
JPS57101776A true JPS57101776A (en) 1982-06-24

Family

ID=16047796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55178398A Pending JPS57101776A (en) 1980-12-17 1980-12-17 Ultrasonic video signal device

Country Status (1)

Country Link
JP (1) JPS57101776A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170283U (en) * 1983-04-28 1984-11-14 横河メディカルシステム株式会社 Azimuth adaptive phased array sonar
JPS6052784A (en) * 1983-08-31 1985-03-26 Yokogawa Medical Syst Ltd Azimuth adaptive type phased array sonar
JPS63149558A (en) * 1986-12-12 1988-06-22 Hitachi Ltd Space scanning type ultrasonic flaw detection apparatus
JP2005058321A (en) * 2003-08-08 2005-03-10 Ge Medical Systems Global Technology Co Llc Compound scanning method and ultrasonic diagnostic equipment
JP2006051355A (en) * 2004-08-10 2006-02-23 General Electric Co <Ge> Method and apparatus for ultrasonic spatial compound imaging using adjustable opening control
JP2012066078A (en) * 2010-09-21 2012-04-05 Toshiba Corp Ultrasound probe and ultrasound imaging system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170283U (en) * 1983-04-28 1984-11-14 横河メディカルシステム株式会社 Azimuth adaptive phased array sonar
JPH0136152Y2 (en) * 1983-04-28 1989-11-02
JPS6052784A (en) * 1983-08-31 1985-03-26 Yokogawa Medical Syst Ltd Azimuth adaptive type phased array sonar
JPH0131150B2 (en) * 1983-08-31 1989-06-23 Yokokawa Medeikaru Shisutemu Kk
JPS63149558A (en) * 1986-12-12 1988-06-22 Hitachi Ltd Space scanning type ultrasonic flaw detection apparatus
JP2005058321A (en) * 2003-08-08 2005-03-10 Ge Medical Systems Global Technology Co Llc Compound scanning method and ultrasonic diagnostic equipment
JP2006051355A (en) * 2004-08-10 2006-02-23 General Electric Co <Ge> Method and apparatus for ultrasonic spatial compound imaging using adjustable opening control
JP2012066078A (en) * 2010-09-21 2012-04-05 Toshiba Corp Ultrasound probe and ultrasound imaging system

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