G - Physics
04
B
58/0.3
G04B 21/08 (2006.01) G04C 21/24 (2006.01)
Patent
CA 1199801
Abstract of the Disclosure A minaturized countdown timer comprising central processor unit means for counting down a selectible length of time to a zero time datum; LCD means for continuously displaying a digital readout of time remaining until said predetermined zero time datum; voice synthesizer processor means for generating electronic signals corresponding to the digital readout at pre-programmed specific intervals; loudspeaker means for transducing said electronic signals into audible sounds corresponding to said displayed digital readouts of time remaining at said pre-programmed specific intervals; recall means for continually, without pause, recycling a predetermined recall time for countdown to said zero time datum upon the expiration of counted down time; processing means for monitoring the number of cycles said recall means and for continuously displaying the current number of said recall cycle on said LCD means; intermittent actuating means for activating said voice synthesizing processor means for synthesizing spoken time announcements on the whole minute throughout the countdown; at 15 second intervals for a pre-determined penultimate portion of the countdown; and at each second of the final portion of the countdown.
453342
Ketcham William P.
Selwyn Stephen
Ketcham William P.
Osler Hoskin & Harcourt Llp
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