Apple Inc.

Noemi Novello

John C Difonzo

Stefano Tizianel

Michelle Rae Goldberg

Hao Zhu

Matthew William Blum

William A Tashman

Fabio T Campos

Maurizio Bertoldo

Andrea Del Prete

Jonathan E Borkowski

Bryce W Wilson

Chee How Chong

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.

Magnetic field adjustments to a magnetic latch for producing accurate kinematics in a computing device

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

Method and apparatus for producing accurate kinematics in a computing device

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Parabiago, Italy

Noemi Novello