FR2171346A1 - - Google Patents

Info

Publication number
FR2171346A1
FR2171346A1 FR7304622A FR7304622A FR2171346A1 FR 2171346 A1 FR2171346 A1 FR 2171346A1 FR 7304622 A FR7304622 A FR 7304622A FR 7304622 A FR7304622 A FR 7304622A FR 2171346 A1 FR2171346 A1 FR 2171346A1
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
FR7304622A
Other languages
French (fr)
Other versions
FR2171346B1 (enrdf_load_stackoverflow
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 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 (enrdf_load_stackoverflow)

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 true FR2171346A1 (enrdf_load_stackoverflow) 1973-09-21
FR2171346B1 FR2171346B1 (enrdf_load_stackoverflow) 1976-06-11

Family

ID=4224325

Family Applications (1)

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

Country Status (6)

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

Families Citing this family (4)

* 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 (enrdf_load_stackoverflow) * 1977-04-21 1978-11-16
JPS576377A (en) * 1980-06-13 1982-01-13 Hitachi Ltd Multiplication array type ultrasonic wave searching device
JPS62159263U (enrdf_load_stackoverflow) * 1986-03-28 1987-10-09

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
GB1395933A (en) 1975-05-29
JPS5336791B2 (enrdf_load_stackoverflow) 1978-10-04
FR2171346B1 (enrdf_load_stackoverflow) 1976-06-11
DE2306247A1 (de) 1973-08-16
CH549220A (de) 1974-05-15
NL7300811A (enrdf_load_stackoverflow) 1973-08-14
JPS4931346A (enrdf_load_stackoverflow) 1974-03-20
DE2306247B2 (de) 1975-11-20
NL158618B (nl) 1978-11-15
DD103967A5 (enrdf_load_stackoverflow) 1974-02-12

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Legal Events

Date Code Title Description
ST Notification of lapse