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A method is described whereby one or more elements (each containing at least one photosensitive component) in a planar X-Y array may be randomly selected without the use of selecting conductors.
English (United States)
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Multipoint Wireless Digital X Y Selection Scheme
A method is described whereby one or more elements (each containing at
least one photosensitive component) in a planar X-Y array may be randomly
selected without the use of selecting conductors.
The selection of an element(s) in a planar X-Y array can be accomplished by
analog or digital means. Typical analog means are deflected electron and light
beams. Typical digital means employ conductors for selection where there may
be (a) one conductor for each selectable element or (b) two or more conductors
for each selectable element. Frequently (a) the provision of selecting conductors, (b) the connection or coupling of such conductors to the elements they select or, (c) the connection or coupling of selecting conductors to the circuits which
provide the selecting signals imposes difficulties and/or limitations in fabrication
and/or operation. The scheme described below permits random selection of one
or more photosensitive elements (or areas) disposed in a planar X-Y array
without the use of selecting conductors in the array.
The figure is a diagram of the multipoint wireless digital X-Y selection scheme
in which 101 is a light source, 102 is an optical system which illuminates the left
side of 103 with substantially collimated light, and 103 is a polarizer. 104 is a
magnetic bubble array similar to that described by Lacklison . 104 is provided
(conventionally) with bias means and with conductors for the introduction and
shifting of bubble patterns via one or more major loops, each of which may have
a multiplicity of minor loops. 105 is an analyzer, and 106 is an optical system
which causes the light pattern at the output of 105 to be delivered as an identical
light pattern to the left side of 107. 107 is a planar X-Y array, each selectable
element of which contains at least one photosensitive component. Alternatively,
107 may be a planar photosensitive surface in which the element(s) size and