Patent ID: 11885668
Assignee: LOGICDATA ELECTRONIC & SOFTWARE ENTWICKLUNGS GMBH
Field: Medical technology (Instruments)
Classification: CPC G  A | IPC A  G

Claim 0:
1. A sensor assembly for a furniture for detecting an activity of a user of the furniture, the sensor assembly comprising:
a light transmitter and a light receiver forming beginning and end of an optical light path connecting the light transmitter and the light receiver, wherein the light receiver is adapted to output a reception signal based on a received amount of light;
an evaluation circuit configured to generate a motion signal based on the reception signal or a signal derived from the reception signal; and
an oscillating body which is movably mounted in such a manner that a movement of the oscillating body results in a change in a property of the light path;
wherein the sensor assembly is arranged such that the activity of the user is to cause the oscillating body to oscillate, and
wherein the oscillating body has a resonant frequency of less than 20 Hz.