Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1978-06-27
1982-02-09
Buczinski, S. C.
Facsimile and static presentation processing
Static presentation processing
Attribute control
343 79, 350 63, 350130, 350145, 352 86, 358 89, H04N 954, G01S 720
Patent
active
043152813
ABSTRACT:
A luminous spot in a model area displays the position and movements of an object in space by means of apparatus which receives a location signal, such as a radar signal, indicative of the instantaneous coordinates of the object with respect to each of three axes of a system of coordinates in the space. The apparatus includes an oscilloscope and a thin, converging lens which is rotated about an axis parallel to the screen of the oscilloscope and perpendicular to the optical axis of the lens. A potentiometer coupled to the lens generates an angle signal indicative of the instantaneous angle defined by the optical axis and a line perpendicular to the oscilloscope screen. Control circuits connected to the source of the location signal cooperate with the oscilloscope to produce a visible, luminous signal in a point of the screen surface when the afore-mentioned instantaneous angle assumes a predetermined value. The position of the point relative to two intersecting axes in the screen surface is a function of the spacing of the axis of lens rotation from the screen surface and of the ratio of respective coordinates of the object with respect to the first and second axes in space. The position of the point relative to the other axis in the screen surface is a function of the spacing of the axis of rotation and of the ratio of the respective coordinates of the object from the second and third axes in space. The predetermined value of the instantaneous angle is a function of the spacing of the axis of lens rotation, the focal length of the lens, and the coordinates of the object with respect to two of the three axes in space.
REFERENCES:
patent: 2648061 (1953-08-01), Parker et al.
patent: 2837735 (1958-06-01), Wolff
patent: 3140415 (1964-07-01), Ketchpel
patent: 3682553 (1972-08-01), Kapany
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