Instruction indicating apparatus for a record and/or playback device
AssigneeDictaphone Corporation
InventorsLeslie N. Wilder, James C. Whitney, Gary Matison
Life of this patent
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Abstract
Apparatus for indicating the location of particular information, such as instructions, represented by predetermined signals previously recorded on a record medium. An array of light emitting sources is selectively energized to indicate the position of the particular information relative to the length of the record medium while the array is scanned in synchronism with the scanning of the record medium to detect the presence of such predetermined signals. Indexing means sequentially conditions each of the light emitting sources to be energized during scanning; and a temporary storage circuit stores a representation of a detected predetermined signal, until a light emitting source is conditioned.
Claims13
Apparatus for indicating the location of particular information on a previously recorded record medium, said particular information being represented by predetermined recorded signals, comprising:
- scanning means for scanning said record medium;
- an array of selectively actuable light emitting sources;
- indexing means for scanning said array of light emitting sources in synchronism with the scanning of said record medium, said indexing means being in actuating relation sequentially with each of said light emitting sources;
- detecting means for detecting the presence of said predetermined recorded signals during the scanning of said record medium to produce an actuating signal;
- and
- temporary storage means for temporarily storing said actuating signal until said indexing means is in actuating relation with an unenergized light emitting source to energize said light emitting source.
Dependencies are inferred from the claim text.