Abstract: This application relates to improving kinematics in a computing device such as a laptop computer. A magnetic latch mechanism includes a magnetic array and an attractor plate. The magnetic array is secured in a top portion of the laptop computer and the attractor plate is secured in a base portion of the laptop computer. An attractive force of the magnetic latch mechanism is calibrated by selectively demagnetizing a portion of one or more magnetic elements in the magnetic array to reduce the attractive force proximate a target force. The calibration technique can include exciting a demagnetizing element, such as a pair of conductive coils, with a short, high frequency demagnetization pulse to create a demagnetized zone within the magnetic array that is completely demagnetized, irrespective of unit to unit variations of magnetic properties in the initially magnetized magnetic array. This technique ensures an accurate kinematic user experience.

Abstract: A magnetizing device, including an electric circuit composed of one or more branches arranged in series or in parallel, joined by nodes, so as to form multipolar magnetic geometries, powered directly or by means of a transformer by a capacitor-discharge magnetizer. Differently from the prior art, which provides for a single winding composed of a series of many turns wound specifically to form even more than one pole, the present invention combines multiple connections in series and in parallel which are localized, so as to minimize the leakage inductance of the system. The windings can therefore have even a low number of turns or even a single machine-made turn.

Abstract: Method, system, and apparatus for optimizing kinematics of a magnetic latch having a magnetic element is disclosed.

Abstract: Method, system, and apparatus for optimizing kinematics of a magnetic latch having a magnetic element is disclosed.