EP0503214A1
Expired / Lapsed
EP
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Orientation device
Assignee: Contraves Italiana SpA
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Filing: 1991-03-11
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Granted: —
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Expires: 2011-03-11
Abstract
Abstract The orientation device includes a magnetic sensor (3) which is arranged in an item of headgear (9) worn by the observer (1) and is adapted to provide an observer with alignment data. An external unit (17) provides a preset direction to a computer (7) which compares it with the alignment data and calculates an alignment error data. The observer's alignment error with respect to the preset direction is indicated to the observer in the form of modulated tones by means of the transducer (5) which is constituted by earphones applied to the item of headgear.
Inventors
- 👤 Alessandro Di Berardino
- 👤 Sergio Fabretti
- 👤 Furio Provvedi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 11:37
CPC Classifications
G; G01; G01C; G01C17/00; F; F41; F41G; F41G3/00; F41G3/04; F41G3/22; F41G3/225
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
125 words
Orientation device adapted to provide an observer (1) with his indicative angular positioning error with respect to a preset direction, characterized in that it comprises: a sensor means (3) adapted to provide data regarding the alignment of said observer, measured with respect to the magnetic north, said data being in the form of an electric signal; a circuital means (7) adapted to receive said alignment data and data regarding an assigned alignment direction, said circuital means being adapted to compare said alignment data with said assigned direction data so as to generate alignment error data; a transducer means (5), adapted to receive said alignment error data generated by said circuital means and for generating a corresponding alignment error signal which is understandable to said observer.
Claim 2
Dependent Claim
29 words
Device according to claim 1, characterized in that said sensor means comprises a magnetic sensor (5) which is rigidly associated with the direction of alignment of said observer (1).
Claim 3
Dependent Claim
94 words
Device according to claim 1 or 2, characterized in that said circuital means is constituted by an electronic computer (7) which comprises: an input interface (11) adapted to receive said observer alignment data (a O/N ) and adapted to furthermore receive angular data (a A/N ) which determine said preset direction; a processor (13) adapted to calculate an observer positioning error data on the basis of said alignment data and of said angular data; a signal source (15) adapted to receive said error data and to generate a corresponding signal for said transducer (5).
Claim 4
Dependent Claim
44 words
Device according to one or more of the preceding claims, characterized in that said transducer means is of an acoustic type comprising respectively right and left earphones (5), each of said earphones being adapted to provide a modulated tone corresponding to said positioning error.
Claim 5
Dependent Claim
33 words
Device according to one or more of the preceding claims, characterized in that said tone is modulated by a square wave with a variable period which is proportional to said positioning error data.
Claim 6
Dependent Claim
26 words
Device according to one or more of the preceding claims, characterized in that said transducer means (5) is of a visual type comprising a LED viewer.
Claim 7
Dependent Claim
27 words
Device according to one or more of the preceding claims, characterized in that said angular data is provided to said computer (7) by an external unit (17).
Claim 8
Dependent Claim
24 words
Device according to one or more of the preceding claims, characterized in that said external unit is constituted by a radio receiver set (17).
Claim 9
Dependent Claim
29 words
Device according to one or more of the preceding claims, characterized in that said transducer (5) and said sensor means (3) are included in an item of headgear (9).
Claim 10
Dependent Claim
33 words
Device according to one or more of the preceding claims, characterized in that said circuital means is comprised within a portable case body (7) which is separate from said sensor and said transducer.
References Cited (Backward Citations)
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