Patent ID: 11940329
Assignee: GOOGLE LLC
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 11:
12. A mobile device comprising:
an electronic display panel extending in a plane;
a chassis attached to the electronic display panel and defining a space between a back panel of the chassis and the electronic display panel;, an electronic control module housed in the space, the electronic control module comprising a processor;
a panel audio loudspeaker comprising an actuator coupled to the display panel, the actuator comprising:
a voice coil attached to and extending from the panel along an axis; and
a magnet assembly suspended from the panel via one or more springs; and
a temperature sensor in electrical contact with the coil at three different axial locations, the temperature sensor being configured, during operation of the device, to measure a temperature of the coil based on voltage measurements at the three different axial locations; and
wherein during operation of the actuator the one or more springs flex to accommodate axial displacements of the magnet assembly relative to the voice coil.