GB2219658B - Escape guidance apparatus - Google Patents

Escape guidance apparatus

Info

Publication number
GB2219658B
GB2219658B GB8813816A GB8813816A GB2219658B GB 2219658 B GB2219658 B GB 2219658B GB 8813816 A GB8813816 A GB 8813816A GB 8813816 A GB8813816 A GB 8813816A GB 2219658 B GB2219658 B GB 2219658B
Authority
GB
United Kingdom
Prior art keywords
guidance apparatus
escape guidance
escape
guidance
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 - Lifetime
Application number
GB8813816A
Other versions
GB8813816D0 (en
GB2219658A (en
Inventor
David Brennand
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB8813816A priority Critical patent/GB2219658B/en
Publication of GB8813816D0 publication Critical patent/GB8813816D0/en
Publication of GB2219658A publication Critical patent/GB2219658A/en
Application granted granted Critical
Publication of GB2219658B publication Critical patent/GB2219658B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G01S1/725—Marker, boundary, call-sign or like beacons transmitting signals not carrying directional information

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Alarm Systems (AREA)
GB8813816A 1988-06-10 1988-06-10 Escape guidance apparatus Expired - Lifetime GB2219658B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8813816A GB2219658B (en) 1988-06-10 1988-06-10 Escape guidance apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8813816A GB2219658B (en) 1988-06-10 1988-06-10 Escape guidance apparatus

Publications (3)

Publication Number Publication Date
GB8813816D0 GB8813816D0 (en) 1988-07-13
GB2219658A GB2219658A (en) 1989-12-13
GB2219658B true GB2219658B (en) 1992-07-08

Family

ID=10638443

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8813816A Expired - Lifetime GB2219658B (en) 1988-06-10 1988-06-10 Escape guidance apparatus

Country Status (1)

Country Link
GB (1) GB2219658B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2392284B (en) 2002-08-06 2005-11-16 Hewlett Packard Development Co Method and arrangement for guiding a user along a target path
GB0218188D0 (en) * 2002-08-06 2002-09-11 Hewlett Packard Co Methods and arrangements applicable to exhibition spaces
GB2392285B (en) 2002-08-06 2006-04-12 Hewlett Packard Development Co Method and arrangement for guiding a user along a target path

Also Published As

Publication number Publication date
GB8813816D0 (en) 1988-07-13
GB2219658A (en) 1989-12-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930610