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US 5,402,108 AGranted
Driver alerting system
AssigneeJust Right, Inc.
InventorsAaron S. Tabin, Gary P. Watts
Life of this patent
Estimating the term…
Abstract
A driver alerting device plugs into a vehicle cigarette lighter and, after actuation of a reset button, triggers a flashing red warning light after a random time period. If the driver does not actuate the reset button within a predetermined time after the light begins flashing, a horn will beep.
Claims17
An operator alerting system comprising:
- first timer means selectively actuatable for initiating a randomly variable first time period unknown to the operator and for generating an output signal at the expiration of said first time period, first annunciator means coupled to said first timer means and including means for producing a first intermittent alarm indication at the expiration of said first time period, second timer means coupled to said first timer means and responsive to said output signal for initiating a second time period, second annunciator means coupled to said second timer means and including means for producing a second intermittent alarm indication at the expiration of said second time period, said first and second intermittent alarm indications having a rate of intermittency, said first timer means including means coupled to said first and second annunciator means for controlling the rate of intermittency of said first and second intermittent alarm indications, and reset means for actuating said first timer means and simultaneously terminating said output signal.
An operator alerting system comprising:
- a continuously operating first counter for repeatedly counting through a predetermined count sequence, a second counter coupled to said first counter and selectively actuatable for counting a first randomly variable time period unknown to the operator and determined by the count of said first counter when said second counter is actuated, said second counter generating an output signal at the expiration of said first time period, first annunciator means coupled to said second counter and including means for producing a first intermittent alarm indication at the expiration of said first time period, timer means coupled to said second counter and responsive to said output signal for beginning a second time period, second annunciator means coupled to said timer means and including means for producing a second intermittent alarm indication at the expiration of said second time period, said first and second intermittent alarm indications having a rate of intermittency, said first counter including means coupled to said first and second annunciator means for controlling the rate of intermittency of said first and second intermittent alarm indications, and reset means for simultaneously actuating said second counter and terminating said output signal.
Dependencies are inferred from the claim text.