CA1013858A - Compass display circuit - Google Patents

Compass display circuit

Info

Publication number
CA1013858A
CA1013858A CA217,947A CA217947A CA1013858A CA 1013858 A CA1013858 A CA 1013858A CA 217947 A CA217947 A CA 217947A CA 1013858 A CA1013858 A CA 1013858A
Authority
CA
Canada
Prior art keywords
display circuit
compass display
compass
circuit
display
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
CA217,947A
Other languages
English (en)
Other versions
CA217947S (en
Inventor
John T. Fowler
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.)
Laitram LLC
Original Assignee
Laitram LLC
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 Laitram LLC filed Critical Laitram LLC
Application granted granted Critical
Publication of CA1013858A publication Critical patent/CA1013858A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/36—Repeaters for remote indication of readings of a master compass

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
  • Measuring Magnetic Variables (AREA)
CA217,947A 1974-01-21 1975-01-15 Compass display circuit Expired CA1013858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US434793A US3906483A (en) 1974-01-21 1974-01-21 Compass display circuit

Publications (1)

Publication Number Publication Date
CA1013858A true CA1013858A (en) 1977-07-12

Family

ID=23725728

Family Applications (1)

Application Number Title Priority Date Filing Date
CA217,947A Expired CA1013858A (en) 1974-01-21 1975-01-15 Compass display circuit

Country Status (8)

Country Link
US (1) US3906483A (de)
JP (1) JPS50108955A (de)
CA (1) CA1013858A (de)
DE (1) DE2501544A1 (de)
DK (1) DK14275A (de)
GB (1) GB1500211A (de)
NO (1) NO141486C (de)
SE (1) SE392969B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0038313B1 (de) * 1980-04-16 1985-01-23 Wilfried Verbiest Beleuchtungsvorrichtung für Fahrräder, Motorräder und ähnliche Fahrzeuge
US4398353A (en) * 1981-11-06 1983-08-16 Sperry Corporation Compass data converter
US4929943A (en) * 1988-07-01 1990-05-29 Sperry Marine, Inc. Marine compass rate-of-turn indicator
WO2008080103A1 (en) * 2006-12-22 2008-07-03 Johnson Controls Technology Company Compass with ambient light

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3206719A (en) * 1963-03-29 1965-09-14 Pure Samuel Compass direction indicating system
US3396378A (en) * 1965-08-17 1968-08-06 Gen Precision Systems Inc Thermochromic display system
US3566388A (en) * 1968-11-20 1971-02-23 Stewart Warner Corp Traveling message display
US3766535A (en) * 1972-04-14 1973-10-16 Magnavox Co Telethermometer receiver and display device

Also Published As

Publication number Publication date
US3906483A (en) 1975-09-16
JPS50108955A (de) 1975-08-27
DK14275A (de) 1975-09-22
DE2501544A1 (de) 1975-07-24
NO750146L (de) 1975-08-18
GB1500211A (en) 1978-02-08
SE7500565L (de) 1975-07-22
NO141486C (no) 1980-03-19
AU7732975A (en) 1976-07-15
SE392969B (sv) 1977-04-25
NO141486B (no) 1979-12-10

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