FR2208122A1 - - Google Patents

Info

Publication number
FR2208122A1
FR2208122A1 FR7341992A FR7341992A FR2208122A1 FR 2208122 A1 FR2208122 A1 FR 2208122A1 FR 7341992 A FR7341992 A FR 7341992A FR 7341992 A FR7341992 A FR 7341992A FR 2208122 A1 FR2208122 A1 FR 2208122A1
Authority
FR
France
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
FR7341992A
Other versions
FR2208122B1 (fr
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche 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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of FR2208122A1 publication Critical patent/FR2208122A1/fr
Application granted granted Critical
Publication of FR2208122B1 publication Critical patent/FR2208122B1/fr
Expired 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
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (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)
FR7341992A 1972-11-27 1973-11-26 Expired FR2208122B1 (fr)

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
FR2208122A1 true FR2208122A1 (fr) 1974-06-21
FR2208122B1 FR2208122B1 (fr) 1978-03-10

Family

ID=4423717

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7341992A Expired FR2208122B1 (fr) 1972-11-27 1973-11-26

Country Status (9)

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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
NL161585C (nl) 1980-02-15
DE2351352B2 (de) 1978-04-13
DD109267A5 (fr) 1974-10-20
CA998161A (en) 1976-10-05
DE2351352A1 (de) 1974-05-30
NL161585B (nl) 1979-09-17
JPS537815B2 (fr) 1978-03-22
DK138863B (da) 1978-11-06
GB1413740A (en) 1975-11-12
FR2208122B1 (fr) 1978-03-10
NL7316000A (fr) 1974-05-29
CH558944A (de) 1975-02-14
DE2351352C3 (de) 1978-12-07
JPS501767A (fr) 1975-01-09
DK138863C (fr) 1979-04-17

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Legal Events

Date Code Title Description
ST Notification of lapse