Stroboscopic display apparatus

Claim 2

A display means comprising a display medium having display characters thereon: a memory element associated with each display character; illuminating means arranged to illuminate selected ones of said characters; primary control means operative to initially trigger said illuminating means to display said selected characters; means to actuate said associated memory element for said selected characters to indicate that said characters were displayed; and a secondary means responsive to said actuated memory element to retrigger subsequently said illuminating means to display said selected characters independently of said primary control means.

Claim 3

In combination: a display means comprising a plurality of display elements driven in succession past a viewing aperture and a plurality of light sensitive memory means, each corresponding to a display element, and driven in correspondence with said elements, each memory means having a storage time at least equal to the period between successive appearances of a given element at said viewing aperture; means responsive to a source to signals for initially illuminating a selected element as it is positioned at said aperture and concurrently illuminating the light sensitive memory means corresponding thereto to thereby store therein an indication that its associated character has been illuminated; and means responsive to said illuminated light sensitive memory means for subsequently controlling illumination of said selected element when it again passes said viewing aperture.

Claim 4

In combination: a display means comprising a plurality of display elements driven in succession past a viewing aperture and a plurality of light sensitive memory means, each corresponding to a display element, and driven in correspondence with said elements, each memory means having a storage time at least equal to the period between successive appearances of a given element at said viewing aperture; means responsive to a source to signals for initially illuminating a selected element as it is positioned at said aperture and concurrently illuminating the light sensitive memory means corresponding thereto to thereby store therein an indication that its associated character has been illuminated; and means responsive to said illuminated light sensitive memory means for subsequently controlling illumination of said selected element when it again passes said viewing aperture.

Claim 5

In combination: a display means comprising a plurality of display elements and a memory means adjacent each display element, said elements being driven in succession past a viewing aperture; means responsive to a source of external signals for initially illuminating a selected element as it is positioned in said viewing aperture and for concurrently activating the one of said memory means adjacent to said illuminated element; and means responsive to said activated memory means for subsequently controlling illumination of said selected element as it is again driven past said viewing aperture.

Claim 6

In combination: a display means comprising a plurality of display elements and a memory means adjacent each display element, said elements being driven in succession past a viewing aperture; means responsive to a source of external signals for initially illuminating a selected element as it is positioned in said viewing aperture and for concurrently activating the one of said memory means adjacent to said illuminated element; and means responsive to said activated memory means for subsequently controlling illumination of said selected element as it is again driven past said viewing aperture.

Claim 7

In a display of the type in which a series of display elements move past a viewing aperture; a plurality of light responsive memory means, each such means adjacent to a different display element; stroboscopic illuminating means responsive to a selection signal for illuminating a selected one of said elements when it is in position at the viewing aperture and to illuminate at the same time the one of the light responsive memory means adjacent thereto; and means responsive to said light responsive memory means adjacent to said selected one of said elements for subsequently actIvating said stroboscopic illuminating means to reilluminate said selected element when it next appears at said viewing aperture.

Claim 8

In a display of the type in which a series of display elements move past a viewing aperture; a plurality of light responsive memory means, each such means adjacent to a different display element; stroboscopic illuminating means responsive to a selection signal for illuminating a selected one of said elements when it is in position at the viewing aperture and to illuminate at the same time the one of the light responsive memory means adjacent thereto; and means responsive to said light responsive memory means adjacent to said selected one of said elements for subsequently actIvating said stroboscopic illuminating means to reilluminate said selected element when it next appears at said viewing aperture.

Claim 9

The combination of claim 4 wherein each light responsive memory means comprises a patch adjacent to its display element which in response to light excitation emits light for a limited interval of time, at least equal to that required for a selected character again to move past said viewing aperture, and wherein said means responsive to said memory comprises light sensitive means positioned adjacent said viewing aperture responsive to a patch which has been excited.

Claim 10

The combination of claim 5 further including interrupt means coupling said light sensitive means to said stroboscopic illuminating means and responsive to an external signal for preventing the detection of said illumination from said memory associated with said selected illumination means from activating said stroboscopic illumination means to prevent further displaying of said selected element.

Claim 11

In combination: a storage medium formed with visible display elements thereon; a display location; drive means coupled to said medium for driving the same to cause said display elements to move in succession past said display location in a repetitive manner; a plurality of light responsive memory means also coupled to said drive means, one such memory means corresponding to each such display element, the memory means being driven in correspondence with the display elements and each memory means having a storage time at least equal to the period between successive appearances of a display element at said display location; means including a light source responsive to a selection signal for illuminating a selected display element called for by said signal, when said element is at said display location and for concurrently actuating the light responsive memory means for that selected element; and means responsive to any memory means which has been actuated during the appearance of its display element at said display location for controlling the illumination of said display element the next time the same display element moves into said display location.

Claim 12

In combination: a storage medium formed with visible display elements thereon; a display location; drive means coupled to said medium for driving the same to cause said display elements to move in succession past said display location in a repetitive manner; a plurality of light responsive memory means also coupled to said drive means, one such memory means corresponding to each such display element, the memory means being driven in correspondence with the display elements and each memory means having a storage time at least equal to the period between successive appearances of a display element at said display location; means including a light source responsive to a selection signal for illuminating a selected display element called for by said signal, when said element is at said display location and for concurrently actuating the light responsive memory means for that selected element; and means responsive to any memory means which has been actuated during the appearance of its display element at said display location for controlling the illumination of said display element the next time the same display element moves into said display location.

Claim 13

The combination is accordance with claim 7 wherein each said memory means is on said storage medium and is located adjacent to its display elements.

Claim 14

The combination in accordance with claim 7 wherein each memory means comprises a light emitting means.