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FR2171346B1 - - Google Patents

Info

Publication number
FR2171346B1
FR2171346B1 FR7304622A FR7304622A FR2171346B1 FR 2171346 B1 FR2171346 B1 FR 2171346B1 FR 7304622 A FR7304622 A FR 7304622A FR 7304622 A FR7304622 A FR 7304622A FR 2171346 B1 FR2171346 B1 FR 2171346B1
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.)
Expired
Application number
FR7304622A
Other versions
FR2171346A1 (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.)
HOFFMANN LA ROCHE
F Hoffmann La Roche AG
Original Assignee
HOFFMANN LA ROCHE
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 HOFFMANN LA ROCHE, F Hoffmann La Roche AG filed Critical HOFFMANN LA ROCHE
Publication of FR2171346A1 publication Critical patent/FR2171346A1/fr
Application granted granted Critical
Publication of FR2171346B1 publication Critical patent/FR2171346B1/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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
FR7304622A 1972-02-11 1973-02-09 Expired FR2171346B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH203272A CH549220A (de) 1972-02-11 1972-02-11 Verfahren und vorrichtung zur verrringerung der seitenmaxima bei ultraschall-echolotverfahren.

Publications (2)

Publication Number Publication Date
FR2171346A1 FR2171346A1 (fr) 1973-09-21
FR2171346B1 true FR2171346B1 (fr) 1976-06-11

Family

ID=4224325

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7304622A Expired FR2171346B1 (fr) 1972-02-11 1973-02-09

Country Status (6)

Country Link
JP (1) JPS5336791B2 (fr)
CH (1) CH549220A (fr)
DD (1) DD103967A5 (fr)
FR (1) FR2171346B1 (fr)
GB (1) GB1395933A (fr)
NL (1) NL158618B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS585385B2 (ja) * 1976-03-12 1983-01-31 沖電気工業株式会社 受信ビ−ムフォ−マ
JPS53145878U (fr) * 1977-04-21 1978-11-16
JPS576377A (en) * 1980-06-13 1982-01-13 Hitachi Ltd Multiplication array type ultrasonic wave searching device
JPS6066U (ja) * 1983-06-17 1985-01-05 京セラ株式会社 セラミツク製研摩研削具
JPH023429Y2 (fr) * 1986-03-07 1990-01-26
JPS62159263U (fr) * 1986-03-28 1987-10-09

Also Published As

Publication number Publication date
JPS5336791B2 (fr) 1978-10-04
CH549220A (de) 1974-05-15
DE2306247B2 (de) 1975-11-20
DD103967A5 (fr) 1974-02-12
NL7300811A (fr) 1973-08-14
JPS4931346A (fr) 1974-03-20
GB1395933A (en) 1975-05-29
NL158618B (nl) 1978-11-15
DE2306247A1 (de) 1973-08-16
FR2171346A1 (fr) 1973-09-21

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Legal Events

Date Code Title Description
ST Notification of lapse