CA1154140A - Echo recognition system - Google Patents

Echo recognition system

Info

Publication number
CA1154140A
CA1154140A CA000360730A CA360730A CA1154140A CA 1154140 A CA1154140 A CA 1154140A CA 000360730 A CA000360730 A CA 000360730A CA 360730 A CA360730 A CA 360730A CA 1154140 A CA1154140 A CA 1154140A
Authority
CA
Canada
Prior art keywords
signal
echo
time
rate
increase
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.)
Expired
Application number
CA000360730A
Other languages
English (en)
French (fr)
Inventor
John M. Reynard
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.)
Polaroid Corp
Original Assignee
Polaroid Corp
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 Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of CA1154140A publication Critical patent/CA1154140A/en
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
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/527—Extracting wanted echo signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
CA000360730A 1979-10-03 1980-09-22 Echo recognition system Expired CA1154140A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8135779A 1979-10-03 1979-10-03
US81,357 1979-10-03

Publications (1)

Publication Number Publication Date
CA1154140A true CA1154140A (en) 1983-09-20

Family

ID=22163638

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000360730A Expired CA1154140A (en) 1979-10-03 1980-09-22 Echo recognition system

Country Status (10)

Country Link
JP (1) JPS5660374A (de)
AT (1) AT375198B (de)
AU (1) AU536697B2 (de)
CA (1) CA1154140A (de)
CH (1) CH651387A5 (de)
DE (1) DE3037139A1 (de)
FR (1) FR2466780B1 (de)
GB (1) GB2059590B (de)
IE (1) IE50163B1 (de)
IT (1) IT1133656B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8334394D0 (en) * 1983-12-23 1984-02-01 Czajowski S B Electrical circuits
DE3581335D1 (de) * 1984-08-28 1991-02-21 Hewlett Packard Co Vorrichtung zur messung der geschwindigkeit eines stromes von teilchen.
DE4433957A1 (de) * 1994-09-23 1996-03-28 Mayser Gmbh & Co Verfahren zur Ultraschall-Hinderniserkennung
GB2338132B (en) * 1998-06-02 2003-05-28 Federal Ind Ind Group Inc Echo detection in echo ranging systems
DE102012200024A1 (de) 2012-01-02 2013-07-04 Robert Bosch Gmbh Verfahren und Umfelderfassungsvorrichtung zur Bestimmung der Position und/oder der Bewegung von mindestens einem Objekt in der Umgebung eines Bewegungshilfsmittels mittels mindestens eines akustischen Pulses
DE102012200716A1 (de) * 2012-01-19 2013-07-25 Robert Bosch Gmbh Verfahren zur Bestimmung der Position und/oder Bewegung von Objekten in der Umgebung eines Bewegungshilfsmittels mittels von Schallsignalen sowie Vorrichtung zur Durchführung des Verfahrens

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1566852C3 (de) * 1967-10-12 1974-02-07 Fried. Krupp Gmbh, 4300 Essen Anordnung zur Unterscheidung von Echolotimpulsen
US3701090A (en) * 1970-12-22 1972-10-24 Amf Inc Shipboard acoustic receiver
JPS5121852A (ja) * 1974-08-15 1976-02-21 Furuno Kyotaka Tantaibutsutaihanbetsusochi
US4199246A (en) * 1976-10-04 1980-04-22 Polaroid Corporation Ultrasonic ranging system for a camera
CA1120578A (en) * 1976-10-04 1982-03-23 Juerg Muggli Ultrasonic ranging system for a camera
DE2726981C2 (de) * 1977-06-15 1984-11-22 Fried. Krupp Gmbh, 4300 Essen Vorrichtung zur Zeitmessung zwischen Impulsen
JPS5484762A (en) * 1977-12-17 1979-07-05 Fuji Roiyaru Kk Noise reject device of ultrasonic underwater detector

Also Published As

Publication number Publication date
JPS5660374A (en) 1981-05-25
GB2059590B (en) 1984-02-29
DE3037139A1 (de) 1981-04-16
ATA493880A (de) 1983-11-15
IE802052L (en) 1981-04-03
CH651387A5 (de) 1985-09-13
IE50163B1 (en) 1986-02-19
AU6281080A (en) 1981-04-09
DE3037139C2 (de) 1993-04-01
AT375198B (de) 1984-07-10
FR2466780A1 (fr) 1981-04-10
FR2466780B1 (fr) 1986-02-28
JPH0156712B2 (de) 1989-12-01
AU536697B2 (en) 1984-05-17
IT1133656B (it) 1986-07-09
IT8025072A0 (it) 1980-10-02
GB2059590A (en) 1981-04-23

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Legal Events

Date Code Title Description
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