Communications: electrical – Digital comparator systems
Patent
1979-12-10
1981-10-27
Pitts, Harold I.
Communications: electrical
Digital comparator systems
340407, 340566, G08B 1300
Patent
active
042976774
ABSTRACT:
A personally worn or portable annunciator device for alerting, warning, training, communicating or diagnostic use for people especially those with hearing impairments. This device which can be activated locally or remotely has as one of its means of generating a tactile sensation a transducer or buzzer, as well as a visual light both of which are activated automatically upon the detection of an audio signal substantially above the local ambient noise, or by a RF signal remotely generated by an auxiliary unit.
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Boyle Howard R.
DiGiannantonio Edmond P.
Lewis John S.
DiGiannatonio Edmund P.
Lewis John S.
Pitts Harold I.
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