JPS5627671A - Method and device for scanning ultrasonic beam - Google Patents

Method and device for scanning ultrasonic beam

Info

Publication number
JPS5627671A
JPS5627671A JP10304279A JP10304279A JPS5627671A JP S5627671 A JPS5627671 A JP S5627671A JP 10304279 A JP10304279 A JP 10304279A JP 10304279 A JP10304279 A JP 10304279A JP S5627671 A JPS5627671 A JP S5627671A
Authority
JP
Japan
Prior art keywords
memory
data
convergence
ultrasonic beam
constitution
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
JP10304279A
Other languages
Japanese (ja)
Inventor
Yoshihiro Hayakawa
Hiroshi Fukukita
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP10304279A priority Critical patent/JPS5627671A/en
Priority to US06/093,019 priority patent/US4287768A/en
Priority to DE2945825A priority patent/DE2945825C2/en
Priority to CA339,730A priority patent/CA1130442A/en
Publication of JPS5627671A publication Critical patent/JPS5627671A/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
    • G01S7/52053—Display arrangements
    • G01S7/52057—Cathode ray tube displays
    • G01S7/5206—Two-dimensional coordinated display of distance and direction; B-scan display
    • G01S7/52063—Sector scan display
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
    • G01N29/262—Arrangements for orientation or scanning by relative movement of the head and the sensor by electronic orientation or focusing, e.g. with phased arrays

Abstract

PURPOSE:To reduce the capacity of a memory for convergence without lowering resolving power, by storing only the difference between adjacent elements and the signs of the elements as data for the convergence and sequentially adding or subtracting the stored data to converge an ultrasonic beam. CONSTITUTION:The difference (0 or 1) between converging delay quantities, which are applied to adjacent elements, and the sign (+ or -) of each quantity are stored in a memory 6. The stored data are read through two transmission lines at every application of a clock pulse CP1. One's own output and the output of the memory 6 are repeatedly added or subtracted on the basis of the sign data. A value resulting from the addition or subtraction is applied to deflecting data by an adder 5. According to this constitution, the capacity of the memory for convergence can simply be reduced without lowering resolving power.
JP10304279A 1978-11-13 1979-08-13 Method and device for scanning ultrasonic beam Pending JPS5627671A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP10304279A JPS5627671A (en) 1979-08-13 1979-08-13 Method and device for scanning ultrasonic beam
US06/093,019 US4287768A (en) 1978-11-13 1979-11-09 Beam deflection method and apparatus for sector scan ultrasound imaging systems
DE2945825A DE2945825C2 (en) 1978-11-13 1979-11-13 Method and apparatus for beam deflection for ultrasonic imaging systems with sector scanning
CA339,730A CA1130442A (en) 1978-11-13 1979-11-13 Beam deflection method and apparatus for sector scan ultrasound imaging systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10304279A JPS5627671A (en) 1979-08-13 1979-08-13 Method and device for scanning ultrasonic beam

Publications (1)

Publication Number Publication Date
JPS5627671A true JPS5627671A (en) 1981-03-18

Family

ID=14343602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10304279A Pending JPS5627671A (en) 1978-11-13 1979-08-13 Method and device for scanning ultrasonic beam

Country Status (1)

Country Link
JP (1) JPS5627671A (en)

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