GB146193A - Improvements in or relating to the directive reception of sound or other wave energy - Google Patents

Improvements in or relating to the directive reception of sound or other wave energy

Info

Publication number
GB146193A
GB146193A GB17360/20A GB1736020A GB146193A GB 146193 A GB146193 A GB 146193A GB 17360/20 A GB17360/20 A GB 17360/20A GB 1736020 A GB1736020 A GB 1736020A GB 146193 A GB146193 A GB 146193A
Authority
GB
United Kingdom
Prior art keywords
microphones
switch
circuit
sound
phase
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
GB17360/20A
Other languages
English (en)
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.)
STEWARD DAVIT AND EQUIPMENT CO
Original Assignee
STEWARD DAVIT AND EQUIPMENT CO
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 STEWARD DAVIT AND EQUIPMENT CO filed Critical STEWARD DAVIT AND EQUIPMENT CO
Publication of GB146193A publication Critical patent/GB146193A/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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
GB17360/20A 1919-06-25 1920-06-25 Improvements in or relating to the directive reception of sound or other wave energy Expired GB146193A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US306689D US1682712A (en) 1919-06-25 1919-06-25 Electric compensator

Publications (1)

Publication Number Publication Date
GB146193A true GB146193A (en) 1921-10-25

Family

ID=23186406

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17360/20A Expired GB146193A (en) 1919-06-25 1920-06-25 Improvements in or relating to the directive reception of sound or other wave energy

Country Status (4)

Country Link
US (1) US1682712A (enrdf_load_stackoverflow)
FR (1) FR524962A (enrdf_load_stackoverflow)
GB (1) GB146193A (enrdf_load_stackoverflow)
NL (1) NL12364C (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786193A (en) * 1948-03-10 1957-03-19 Raytheon Mfg Co Underwater sound system
US2752584A (en) * 1950-12-13 1956-06-26 Melpar Inc Sonic system
BE510259A (enrdf_load_stackoverflow) * 1951-03-28
US2847648A (en) * 1954-02-02 1958-08-12 Control Electronics Company In Printed delay line
FR2542095B1 (fr) * 1982-08-09 1987-12-18 Lem Sa Ensemble d'ecoute a distance

Also Published As

Publication number Publication date
FR524962A (fr) 1921-09-13
US1682712A (en) 1928-08-28
NL12364C (enrdf_load_stackoverflow)

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