Lid angle detection
AssigneeSTMicroelectronics S.r.l.
InventorsFederico RIZZARDINI, Lorenzo BRACCO
Life of this patent
Estimating the term…
Abstract
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.
Claims20
A device, comprising:
- a first housing including:
- first sensors configured to generate first measurements;
- and
- a first processor configured to determine a first orientation of the first housing based on the first measurements;
- a second housing coupled to the first housing, the second housing including:
- second sensors configured to generate second measurements;
- and
- a second processor configured to determine a second orientation of the second component based on the second measurements;
- and
- a third processor configured to estimate an angle between the first housing and the second housing based on the first orientation and the second orientation.
A method, comprising:
- generating, by first sensors, first measurements;
- determining, by a first processor, a first orientation of a first housing of a device based on the first measurements, the first housing including the first sensors and the first processor;
- generating, by second sensors, second measurements;
- determining, by a second processor, a second orientation of a second housing of the device, the second housing including the second sensors and the second processor;
- and
- estimating, by a third processor, an angle between the first housing and the second housing based on the first orientation and the second orientation.
A device, comprising:
- a first housing including a first sensor unit, the first sensor unit configured to generate first measurements and determine a first orientation of the first housing based on the first measurements;
- a second housing coupled to the first housing, the second housing including a second sensor unit configured to generate second measurements and determine a second orientation of the second housing based on the second measurements;
- and
- a processor configured to determine an angle between the first housing and the second housing based on the first orientation and the second orientation.
Dependencies are inferred from the claim text.