Nxp B.v.

Mamuka Katukia

Jozef Thomas Martinus Van Beek

Kim Phan Le

An apparatus comprising an acoustic transducer arrangement configured to transmit at least one acoustic signal and configured to detect a reflection of said at least one acoustic signal, and a controller configured to determine a time-of-flight of the at least one acoustic signal, the controller further configured to determine at least a first value indicative of temperature based on said time-of-flight of the at least one acoustic signal and calibration information indicative of a relationship between time-of-flight and temperature in a space the apparatus is located.

Apparatus for determination of temperature

A motion-detection-circuit configured to receive an audio-output-signal and a received-motion-signal. The motion-detection-circuit includes a preliminary-motion-detector configured to process the received-motion-signal in order to set a state of a prelim-motion-detected-signal based on the received-motion-signal; and an ADC for providing an ADC-output-signal that is a digital representation of a signal received at an ADC-input-terminal. The motion-detection-circuit also includes a switch configured to connect either (i) an audio-output-receiver or (ii) a motion-signal-receiver-terminal to the ADC-input-terminal based on the state of the prelim-motion-detected-signal. The motion-detection-circuit further includes a digital-motion-detector configured to, based on the state of the prelim-motion-detected-signal, process the ADC-output-signal in order to set a state of a motion-detection-signal; and a digital-audio-processor configured to, based on the state of the prelim-motion-detected-signal, process the ADC-output-signal in order to provide an audio-input-signal for an audio-output-module.

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Mamuka Katukia