A key switch includes a movable part configured to be moved by a pressing operation, a support mechanism that movably supports the movable part, an electrical connector including multiple pairs of contacts of upper electrodes and lower electrodes, and a disc spring that is disposed between the movable part and the electrical connector and configured to be elastically deformed by movement of the movable part and to press the electrical connector. The multiple pairs of contacts are provided for one movable part. When the disc spring is deformed by the movement of the movable part, the disc spring is configured to simultaneously press the multiple pairs of contacts provided for the corresponding movable part.

Different types of user inputs can be input by a user via a keyboard of an input device. These different types of user inputs include, for example, key strikes, multi-touch interactions, single finger motions, and/or mouse clicks. Touch information regarding the pressure applied to the keys of a pressure sensitive keyboard over time (or the contact area of the user input for other types of keyboards over time) is used to classify the intent of the user input as one of the various types of user inputs.

Different types of user inputs can be input by a user via a keyboard of an input device. These different types of user inputs include, for example, key strikes, multi-touch interactions, single finger motions, and/or mouse clicks. Touch information regarding the pressure applied to the keys of a pressure sensitive keyboard over time (or the contact area of the user input for other types of keyboards over time) is used to classify the intent of the user input as one of the various types of user inputs.

A push switch includes a movable contact member, a first fixed contact, and a second fixed contact. The push switch is in a first contact state in a first contact position where the movable contact member contacts the first fixed contact, and is in a second contact state in a second contact position where the movable contact member contacts the second fixed contact. The push switch is not switched to an on state in response to transitioning from an off state to the first contact state, and is switched to the on state in response to further transitioning to the second contact state, and the push switch is not switched from the on state to the off state in response to the second contact state being released, and is switched from the on state to the off state in response to the first contact state being further released.

Flexible hinge and removable attachment techniques are described. In one or more implementations, a flexible hinge is configured to communicatively and physically couple an input device to a computing device and may implement functionality such as a support layer and minimum bend radius. The input device may also include functionality to promote a secure physical connection between the input device and the computing device. One example of this includes use of one or more protrusions that are configured to be removed from respective cavities of the computing device along a particular axis but mechanically bind along other axes. Other techniques include use of a laminate structure to form a connection portion of the input device.

Flexible hinge and removable attachment techniques are described. In one or more implementations, a flexible hinge is configured to communicatively and physically couple an input device to a computing device and may implement functionality such as a support layer and minimum bend radius. The input device may also include functionality to promote a secure physical connection between the input device and the computing device. One example of this includes use of one or more protrusions that are configured to be removed from respective cavities of the computing device along a particular axis but mechanically bind along other axes. Other techniques include use of a laminate structure to form a connection portion of the input device.

The systems, methods, and techniques described herein provide for an improved stylus incorporating a dual-function switch as part of the tail eraser mechanism. A conductive resilient body, when compressed, deforms to contact one or more pairs of electrodes on a printed circuit board, thus creating electrical continuity between the electrodes. A first force causes electrical continuity between a first pair of electrodes which may initiate a first mode of the stylus, such as erase mode. A second force, greater than the first force, causes electrical continuity between a second pair of electrodes which may initiate a second mode of the stylus, such as causing a microcontroller unit to issue a command to a computing device to launch one or more applications or services.

In a first aspect of the present disclosure, a push switch includes a substrate including a first electrode and a second electrode arranged on an upper surface of the substrate, the second electrode arranged around the first electrode; and a resilient member that is arranged on the second electrode over the first electrode. The substrate includes a recess in a lower surface of the substrate, and the recess is positioned below the first electrode that is arranged on the upper surface of the substrate.

Pressure sensitive key techniques are described. In one or more implementations, a device includes at least one pressure sensitive key having a flexible contact layer spaced apart from a sensor substrate by a spacer layer, the flexible contact layer configured to flex responsive to pressure to contact the sensor substrate to initiate an input, for a computing device, associated with the pressure sensitive key. At least one of the flexible contact layer or the sensor substrate are configured to at least partially normalize an output resulting from pressure applied at a first location of the flexible contact layer with an output resulting from pressure applied at a second location of the flexible contact layer that has lesser flexibility than the first location.

Pressure sensitive key techniques are described. In one or more implementations, a device includes at least one pressure sensitive key having a flexible contact layer spaced apart from a sensor substrate by a spacer layer, the flexible contact layer configured to flex responsive to pressure to contact the sensor substrate to initiate an input, for a computing device, associated with the pressure sensitive key. At least one of the flexible contact layer or the sensor substrate are configured to at least partially normalize an output resulting from pressure applied at a first location of the flexible contact layer with an output resulting from pressure applied at a second location of the flexible contact layer that has lesser flexibility than the first location.