DK138863C - - Google Patents

Info

Publication number
DK138863C
DK138863C DK637073A DK637073A DK138863C DK 138863 C DK138863 C DK 138863C DK 637073 A DK637073 A DK 637073A DK 637073 A DK637073 A DK 637073A DK 138863 C DK138863 C DK 138863C
Authority
DK
Denmark
Application number
DK637073A
Other languages
Danish (da)
Other versions
DK138863B (da
Inventor
C B Burckhardt
P-A Grandchamp
H Hoffmann
Original Assignee
Hoffmann F. La Roche & Co Ag
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 Hoffmann F. La Roche & Co Ag filed Critical Hoffmann F. La Roche & Co Ag
Publication of DK138863B publication Critical patent/DK138863B/da
Application granted granted Critical
Publication of DK138863C publication Critical patent/DK138863C/da

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
    • G10K11/341—Circuits therefor
    • G10K11/346—Circuits therefor using phase variation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
    • A61B8/4494—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer characterised by the arrangement of the transducer elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transducers For Ultrasonic Waves (AREA)
DK637073AA 1972-11-27 1973-11-26 Fremgangsmåde og apparat til formindskelse af side-ekkoer ved ultralyd-ekkolodfremgangsmåder. DK138863B (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1722272A CH558944A (de) 1972-11-27 1972-11-27 Verfahren und vorrichtung zur verringerung der seitenmaxima bei ultraschall-echolotverfahren.

Publications (2)

Publication Number Publication Date
DK138863B DK138863B (da) 1978-11-06
DK138863C true DK138863C (en:Method) 1979-04-17

Family

ID=4423717

Family Applications (1)

Application Number Title Priority Date Filing Date
DK637073AA DK138863B (da) 1972-11-27 1973-11-26 Fremgangsmåde og apparat til formindskelse af side-ekkoer ved ultralyd-ekkolodfremgangsmåder.

Country Status (9)

Country Link
JP (1) JPS537815B2 (en:Method)
CA (1) CA998161A (en:Method)
CH (1) CH558944A (en:Method)
DD (1) DD109267A5 (en:Method)
DE (1) DE2351352C3 (en:Method)
DK (1) DK138863B (en:Method)
FR (1) FR2208122B1 (en:Method)
GB (1) GB1413740A (en:Method)
NL (1) NL161585C (en:Method)

Also Published As

Publication number Publication date
DE2351352A1 (de) 1974-05-30
DD109267A5 (en:Method) 1974-10-20
CH558944A (de) 1975-02-14
FR2208122B1 (en:Method) 1978-03-10
NL161585B (nl) 1979-09-17
GB1413740A (en) 1975-11-12
DK138863B (da) 1978-11-06
DE2351352C3 (de) 1978-12-07
DE2351352B2 (de) 1978-04-13
CA998161A (en) 1976-10-05
JPS537815B2 (en:Method) 1978-03-22
NL7316000A (en:Method) 1974-05-29
JPS501767A (en:Method) 1975-01-09
NL161585C (nl) 1980-02-15
FR2208122A1 (en:Method) 1974-06-21

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Legal Events

Date Code Title Description
PBP Patent lapsed