G - Physics – 04 – C
Patent
G - Physics
04
C
306/1, 58/20
G04C 21/16 (2006.01) G04C 23/08 (2006.01) G04G 13/02 (2006.01) G04G 15/00 (2006.01) G06K 7/06 (2006.01) G06K 19/02 (2006.01) G06K 19/06 (2006.01)
Patent
CA 1057963
ABSTRACT OF THE DISCLOSURE In programmable timing apparatus forming an electronic appointments reminder, a support formed by an insertable sheet or an insulating surface receives markings made with conductive material or by punched holes at locations corresponding with predetermined times in a given period. Each marking makes or interrupts an electrical connection between a conductive path and a bus-bar. The locations are designated by characters which indicate the respective hours and predetermined intervals in minutes of the given period. Switches driven by a rotating cam disc derive sequential timing signals at predetermined inter- vals during the given period. Apparatus is provided for auto- matically and sequentially responding to correspondence between the timing signals and the predetermined time represented by the respective marking to provide a respective time related out- put signal which is used to operate and electronic alarm. Pro- gramming positions may be provided in which conductors definer gaps which are closed by conductive marking material which is applied when a number is written into the programming position. Coded signals are thereby derived representing the number which has been written. Electronic timing displays are also used and a memory may be incorporated to store data read from markings made on the support.
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