JPS4918823B1 - - Google Patents

Info

Publication number
JPS4918823B1
JPS4918823B1 JP45091920A JP9192070A JPS4918823B1 JP S4918823 B1 JPS4918823 B1 JP S4918823B1 JP 45091920 A JP45091920 A JP 45091920A JP 9192070 A JP9192070 A JP 9192070A JP S4918823 B1 JPS4918823 B1 JP S4918823B1
Authority
JP
Japan
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.)
Pending
Application number
JP45091920A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS4918823B1 publication Critical patent/JPS4918823B1/ja
Pending 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
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • G01S7/292—Extracting wanted echo-signals
    • G01S7/2923—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods
    • 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
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/04—Systems determining presence of a target
    • 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
    • G01S7/521—Constructional features
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
    • 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
    • G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors
    • 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
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)
JP45091920A 1969-10-20 1970-10-20 Pending JPS4918823B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86762169A 1969-10-20 1969-10-20

Publications (1)

Publication Number Publication Date
JPS4918823B1 true JPS4918823B1 (enrdf_load_stackoverflow) 1974-05-13

Family

ID=25350140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP45091920A Pending JPS4918823B1 (enrdf_load_stackoverflow) 1969-10-20 1970-10-20

Country Status (3)

Country Link
US (1) US3672462A (enrdf_load_stackoverflow)
JP (1) JPS4918823B1 (enrdf_load_stackoverflow)
GB (1) GB1320551A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50109715U (enrdf_load_stackoverflow) * 1974-02-20 1975-09-08

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742442A (en) * 1971-09-30 1973-06-26 Pacific Techn Inc Acoustic object detection system
US4081786A (en) * 1976-08-16 1978-03-28 Etat Francais Represente Par Le Delegue Ministeriel Pour L'armement Hydrophone having a directive lobe in the form of a cardioid
US4385210A (en) * 1980-09-19 1983-05-24 Electro-Magnetic Corporation Electro-acoustic planar transducer
US4428062A (en) 1981-08-11 1984-01-24 The Bendix Corporation Surface acoustic wave convolver having a horn central ray transit time compensating stub
GB2137749A (en) * 1983-04-07 1984-10-10 Healey Meters Limited Intruder Detection System
US4525604A (en) * 1983-06-07 1985-06-25 Electro-Voice, Incorporated Horn loudspeaker with convex diaphragm
US4882562A (en) * 1986-03-11 1989-11-21 Turbosound Limited Adaptor for coupling plural compression drivers to a common horn
US6516076B1 (en) 2000-07-12 2003-02-04 Atlas Sound, L.P. Modular horn loudspeaker

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1845768A (en) * 1929-01-08 1932-02-16 Stokes Stanley Loud speaker
US1823705A (en) * 1930-02-01 1931-09-15 Eugene A Widmann System of articulate sound reproduction
DE821371C (de) * 1949-06-28 1951-11-19 Electroacustic Ges M B H Nach dem Tauchspulenprinzip arbeitender elektroakustischer Wandler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50109715U (enrdf_load_stackoverflow) * 1974-02-20 1975-09-08

Also Published As

Publication number Publication date
GB1320551A (en) 1973-06-13
US3672462A (en) 1972-06-27

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