US Patent Application 18183464. LID ANGLE DETECTION simplified abstract

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LID ANGLE DETECTION

Organization Name

STMICROELECTRONICS S.r.l.

Inventor(s)

Federico Rizzardini of Settimo Milanese (IT)

Lorenzo Bracco of Chivasso (IT)

LID ANGLE DETECTION - A simplified explanation of the abstract

This abstract first appeared for US patent application 18183464 titled 'LID ANGLE DETECTION

Simplified Explanation

The patent application is for a device and method to accurately detect the angle of a lid, even if the device is upright when activated.

  • The device has two sensor units that measure acceleration and angular velocity while in a sleep state.
  • Based on these measurements, the orientations of different components of the lid are calculated.
  • When the device wakes up, a processor estimates the lid angle using the calculated orientations.
  • This estimated lid angle is set as the initial lid angle.
  • The initial lid angle is then updated using various combinations of sensors, such as accelerometers, gyroscopes, and magnetometers.


Original Abstract Submitted

The present disclosure is directed to a device and method for lid angle detection that is accurate even if the device is activated in an upright position. While the device is in a sleep state, first and second sensor units measure acceleration and angular velocity, and calculate orientations of respective lid components based on the acceleration and angular velocity measurements. Upon the device exiting the sleep state, a processor estimates the lid angle using the calculated orientations, sets the estimated lid angle as an initial lid angle, and updates the initial lid angle using, for example, two accelerometers; two accelerometers and two gyroscopes; two accelerometers and two magnetometers; or two accelerometers, two gyroscopes, and two magnetometers.