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US 2006/0132322 A1Published application
Motion sensitive self-contained audio module for warning signs
OwnerShawn Jacksoninventor
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OwnerShawn Jacksoninventor
Estimating the term…
A self-contained motion sensitive audio module includes a sensor circuit coupled to a pyroelectric infrared sensor with two sensing elements configured for reliably sensing passersby. The module also includes a power supply, a timing circuit, an audio circuit, a speaker and optionally an LED. The sensor circuit produces an amplified trigger signal when a passerby is sensed. The sensor circuit includes an amplifier to amplify the trigger signal. The timing circuit produces an activation signal upon receiving a trigger signal from the sensor circuit. In playback mode, the audio circuit produces an audible sign message output upon receiving an activation signal from the timing circuit. The module may be attached to the back side of a sign with apertures for receiving the sensor, speaker and optionally an LED.
A self-contained motion sensitive audio module for a sign, said module comprising a sensor circuit communicatively coupled to a sensor, a power supply operatively coupled to the sensor circuit, a timing circuit operatively coupled to the sensor circuit, an audio circuit operatively coupled to the timing circuit, said sensor circuit being adapted to produce a trigger signal and communicate said trigger signal to the timing circuit when a sensible condition is sensed, said timing circuit being adapted to produce an activation signal and communicate said activation signal to the audio circuit upon receiving a trigger signal from the sensor circuit, said audio circuit being adapted to produce an audible sign message output corresponding to an audible sign message upon receiving an activation signal from said timing circuit.
A sign having a front side and a back side, and further including a message on the front side of the sign, a sensor aperture, a speaker aperture, and an self-contained motion sensitive audio module attached to the back side, said module comprising a sensor circuit communicatively coupled to a sensor, a power supply operatively coupled to the sensor circuit, a timing circuit operatively coupled to the sensor circuit, an audio circuit operatively coupled to the timing circuit, and a speaker operatively coupled to the audio circuit, said sensor circuit being adapted to produce a trigger signal and communicate said trigger signal to the timing circuit when a sensible condition is sensed, said timing circuit being adapted to produce an activation signal and communicate said activation signal to the audio circuit upon receiving a trigger signal from the sensor circuit, said audio circuit being adapted to produce an audible sign message output corresponding to an audible sign message upon receiving an activation signal from said timing circuit, said sensor being aligned with the sensor aperture, and said speaker being aligned with the speaker aperture.
Dependencies are inferred from the claim text.