Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1997-07-18
1999-09-14
Wu, Daniel J.
Communications: electrical
Condition responsive indicating system
Specific condition
3403093, 3403094, 340576, 3406915, 3406935, 368 63, 368 73, 368 98, G08B 2300
Patent
active
059529288
ABSTRACT:
A driver alertness maintaining device that includes timer/output mechanism circuitry that is programmable by the user to select and repeatedly output an audible alerting message through a speaker at a user selected interval; the driver alertness maintaining device further including a device housing including a circuitry compartment for containing the timer/output mechanism circuitry; a time display unit responsive to a display output signal from the timer/output mechanism circuitry; a visual alarm LED responsive to a visual output signal from the timer/output mechanism circuitry; a speaker responsive to an analog audio signal generated by a digital-to-analog converter circuit forming a portion of the timer/output mechanism circuitry, a speaker cover provided on the exterior of the device housing, an on/off switch in controlling connection with the timer/output mechanism circuitry, an interval set switch in controlling connection with the timer/output mechanism circuitry, a time set switch in controlling connection with the timer/output mechanism circuitry, and a message select switch in controlling connection with the timer/output mechanism circuitry.
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Washington Dian G.
Washington Freddie L.
Breaux Joseph N.
Wu Daniel J.
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