GB2279729B - Acoustic switching arrangement - Google Patents

Acoustic switching arrangement

Info

Publication number
GB2279729B
GB2279729B GB8230925A GB8230925A GB2279729B GB 2279729 B GB2279729 B GB 2279729B GB 8230925 A GB8230925 A GB 8230925A GB 8230925 A GB8230925 A GB 8230925A GB 2279729 B GB2279729 B GB 2279729B
Authority
GB
United Kingdom
Prior art keywords
switching arrangement
acoustic switching
acoustic
arrangement
switching
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 - Fee Related
Application number
GB8230925A
Other versions
GB8230925D0 (en
GB2279729A (en
Inventor
Michael John Greenwood
Maureen Therese Marsh
Peter Andrew Turner
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.)
Ferranti International PLC
Original Assignee
Ferranti International PLC
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 Ferranti International PLC filed Critical Ferranti International PLC
Priority to GB8230925A priority Critical patent/GB2279729B/en
Publication of GB8230925D0 publication Critical patent/GB8230925D0/en
Publication of GB2279729A publication Critical patent/GB2279729A/en
Application granted granted Critical
Publication of GB2279729B publication Critical patent/GB2279729B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
    • G01S3/802—Systems for determining direction or deviation from predetermined direction
    • G01S3/803—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from receiving transducers or transducer systems having differently-oriented directivity characteristics
    • G01S3/8034—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from receiving transducers or transducer systems having differently-oriented directivity characteristics wherein the signals are derived simultaneously
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C13/00—Proximity fuzes; Fuzes for remote detonation
    • F42C13/06—Proximity fuzes; Fuzes for remote detonation operated by sound waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Circuit For Audible Band Transducer (AREA)
GB8230925A 1982-11-02 1982-11-02 Acoustic switching arrangement Expired - Fee Related GB2279729B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8230925A GB2279729B (en) 1982-11-02 1982-11-02 Acoustic switching arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8230925A GB2279729B (en) 1982-11-02 1982-11-02 Acoustic switching arrangement

Publications (3)

Publication Number Publication Date
GB8230925D0 GB8230925D0 (en) 1994-03-02
GB2279729A GB2279729A (en) 1995-01-11
GB2279729B true GB2279729B (en) 1995-06-07

Family

ID=10533909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8230925A Expired - Fee Related GB2279729B (en) 1982-11-02 1982-11-02 Acoustic switching arrangement

Country Status (1)

Country Link
GB (1) GB2279729B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR141200A0 (en) * 2000-11-13 2000-12-07 Symons, Ian Robert Directional microphone
GB0407274D0 (en) * 2004-03-31 2004-05-05 Univ Liverpool Acoustical location monitoring
KR102477099B1 (en) 2018-08-21 2022-12-13 삼성전자주식회사 Sound direction finding sensor and electronic apparatus including the same

Also Published As

Publication number Publication date
GB8230925D0 (en) 1994-03-02
GB2279729A (en) 1995-01-11

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19981102