Abstract: Systems and methods for a hack-proof security keyboard are described. In some embodiments, a keyboard module may include a first circuit configured to detect activation of a plurality of keys and a second circuit configured to detect activation of a subset of the plurality of keys, where the second circuit overlies the first circuit. In other embodiments, a method may include detecting an electrical signal received from a secondary membrane of a keyboard, where the keyboard includes a primary membrane configured to detect individual activation of any of a plurality of keys, and where the secondary membrane is configured to output the electrical signal in response to concurrent activation of a subset of the plurality of keys. The method may also include performing a selected action in response to the detection.

Abstract: An information handling system keyboard includes a backlight that illuminates keys by transmitting light from a light source through a light guide under the keys and reflects the light towards the keys with a reflector disposed under the light guide. Varied thickness of one or more of the light source, light guide and reflector at an intersection of the light source, light guide and reflector improve the efficiency of light transmission to the keys, thus providing for a thinner light guide and/or reduced illumination to have a given key illumination.

Abstract: Systems and methods for a hack-proof security keyboard are described. In some embodiments, a keyboard module may include a first circuit configured to detect activation of a plurality of keys and a second circuit configured to detect activation of a subset of the plurality of keys, where the second circuit overlies the first circuit. In other embodiments, a method may include detecting an electrical signal received from a secondary membrane of a keyboard, where the keyboard includes a primary membrane configured to detect individual activation of any of a plurality of keys, and where the secondary membrane is configured to output the electrical signal in response to concurrent activation of a subset of the plurality of keys. The method may also include performing a selected action in response to the detection.

Abstract: Systems and methods are disclosed for transitioning a magnetic keyboard between retracted and extended states using a retractable keyboard hinge structure. An information handling system may include a housing having a first housing portion and a second housing portion rotatably coupled by the retractable keyboard hinge structure. The first housing portion may include a magnetic keyboard, and a sliding plate including a plurality of magnets that may be disposed underneath the magnetic keyboard. The retractable keyboard hinge structure may include a first hinge and a first cam. The first hinge and the first cam, when the first housing portion is rotated in relation to the second housing portion, may cause the sliding plate to move in a first linear direction. In response to the sliding plate moving, the plurality of magnets may cause the magnetic keyboard to move in a second linear direction perpendicular to the first linear direction.

Abstract: Systems and methods for a keyboard backlight module are described. In some embodiments, a keyboard backlight module may include: a Light Guide Plate (LGP), a reflector coupled to the LGP, and a light bar at least partially sandwiched between the LGP and the reflector.