Abstract: A device, system, and method for causing electronic actions for categories of persons-of-interest (POI) is provided. A device maintains an attendee list of persons located within a given area using images received from cameras monitoring the given area. In response to determining that the given area meets a given condition the device: uses a current version of the attendee list to generate a POI list of POIs within the given area; categorizes, using the images received from the cameras, the POIs into given categories based on: whether a POI is being monitored by the cameras; whether a location associated with the POI is determined; and, the location associated with the POI, when determined; and causes one or more respective electronic actions to occur in relation to respective POIs associated with a given category into which the respective POIs are categorized.

Abstract: An apparatus and method for controlling an audio power circuit. The audio power circuit includes an audio amplifier having a power input and a speaker connected to the audio amplifier. The audio power circuit also includes a control circuit configured to be connected to a battery and the power input and to control a supply of power to the power input. The audio power circuit further includes a thermal protection circuit connected between the audio amplifier and the speaker, the thermal protection circuit configured to generate a thermal protection signal and provide the same to the control circuit, wherein the control circuit is further configured to control the supply of power based on the thermal protection signal.

Abstract: An apparatus and method for controlling an audio power circuit. The audio power circuit includes an audio amplifier having a power input and a speaker connected to the audio amplifier. The audio power circuit also includes a control circuit configured to be connected to a battery and the power input and to control a supply of power to the power input. The audio power circuit further includes a thermal protection circuit connected between the audio amplifier and the speaker, the thermal protection circuit configured to generate a thermal protection signal and provide the same to the control circuit, wherein the control circuit is further configured to control the supply of power based on the thermal protection signal.