Abstract: A clamshell device with a dual accelerometer detector includes a first keyboard portion including a first accelerometer, a second display portion including a second accelerometer, and a hinge for coupling the first portion to the second portion. Circuitry coupled to the first and second accelerometers provides an output signal in response to the position of the first and second portions of the clamshell device. The output signal is provided to indicate a shutdown or standby mode, tablet operation mode, a partially shut or power savings mode, a normal operating mode, or an unsafe operating mode.

Abstract: A user controlled device, movable into a plurality of positions of a three-dimensional space, includes a MEMS acceleration sensor to detect 3D movements of the user controlled device. The device, such as a mouse, sends control signals correlated to the detected positions to an electrical appliance, such as a computer system. A microcontroller processes the output signals of the MEMS acceleration sensor to generate the control signals, such as screen pointer position signals and “clicking” functions.

Abstract: A pointing and control device for a computer system, the device having a body that can be maneuvered by a user; and an inertial sensor fixed to the body for supplying first signals correlated to the orientation of the body with respect to a gravitational field acting on the inertial sensor. The device moreover includes a magnetometer fixed to the body for supplying second signals correlated to the orientation of the body with respect to the Earth's magnetic field acting on the magnetometer and processing modules for determining an orientation of the body in an absolute reference system, fixed with respect to the Earth's magnetic field and gravitational field on the basis of the first signals and second signals.

Abstract: A user controlled device, movable into a plurality of positions of a three-dimensional space, includes a MEMS acceleration sensor to detect 3D movements of the user controlled device. The device, such as a mouse, sends control signals correlated to the detected positions to an electrical appliance, such as a computer system. A microcontroller processes the output signals of the MEMS acceleration sensor to generate the control signals, such as screen pointer position signals and “clicking” functions.

Abstract: A user controlled device, movable into a plurality of positions of a three-dimensional space, includes a MEMS acceleration sensor to detect 3D movements of the user controlled device. The device, such as a mouse, sends control signals correlated to the detected positions to an electrical appliance, such as a computer system. A microcontroller processes the output signals of the MEMS acceleration sensor to generate the control signals, such as screen pointer position signals and “clicking” functions.

Abstract: A clamshell device having a dual accelerometer detector includes a first keyboard portion including a first accelerometer, a second display portion including a second accelerometer, a hinge for coupling the first portion to the second portion, and circuitry coupled to the first and second accelerometers for providing an output signal in response to the position of the first and second portions of the clamshell device. The output signal is provided to indicate a shutdown or standby mode, tablet operation mode, a partially shut or power savings mode, a normal operating mode, or an unsafe operating mode.

Abstract: A pointing and control device for a computer system, the device having a body that can be maneuvered by a user; and an inertial sensor fixed to the body for supplying first signals correlated to the orientation of the body with respect to a gravitational field acting on the inertial sensor. The device moreover includes a magnetometer fixed to the body for supplying second signals correlated to the orientation of the body with respect to the Earth's magnetic field acting on the magnetometer and processing modules for determining an orientation of the body in an absolute reference system, fixed with respect to the Earth's magnetic field and gravitational field on the basis of the first signals and second signals.

Abstract: A user controlled device, movable into a plurality of positions of a three-dimensional space, includes a MEMS acceleration sensor to detect 3D movements of the user controlled device. The device, such as a mouse, sends control signals correlated to the detected positions to an electrical appliance, such as a computer system. A microcontroller processes the output signals of the MEMS acceleration sensor to generate the control signals, such as screen pointer position signals and “clicking” functions.

Abstract: A noise compensating device in a discrete time control system, such as a R/W system for hard disks, including: a control loop generating a first timing signal, a signal indicative of a quantity to be controlled, and a control signal, which have a first frequency; and an open loop control line which generates a compensation signal synchronous with the control signal and includes a sensor. The sensor includes a sensing element, generating an analog signal, an acquisition stage, connected to the sensing element and generating a disturbance measure signal correlated to the analog signal and synchronous with the control signal, and a synchronization stage. The synchronization stage includes a frequency generator having an input receiving the first timing signal and a first and a second output connected to the acquisition stage and generating, respectively, a second timing signal and a third timing signal.

Abstract: A noise compensating device in a discrete time control system, such as a R/W system for hard disks, including: a control loop generating a first timing signal, a signal indicative of a quantity to be controlled, and a control signal, which have a first frequency; and an open loop control line which generates a compensation signal synchronous with the control signal and includes a sensor. The sensor includes a sensing element, generating an analog signal, an acquisition stage, connected to the sensing element and generating a disturbance measure signal correlated to the analog signal and synchronous with the control signal, and a synchronization stage. The synchronization stage includes a frequency generator having an input receiving the first timing signal and a first and a second output connected to the acquisition stage and generating, respectively, a second timing signal and a third timing signal.