Abstract: Input device layer and nesting techniques are described. In one or more implementations, an input device includes a pressure sensitive key assembly including a substrate having a plurality of hardware elements secured to a surface. The input device also includes one or more layers disposed proximal to the surface, the one or more layers having respective openings configured to nest the one or more hardware elements therein.

Abstract: Input device haptics and pressure sensing techniques are described. An input device includes an outer surface, a pressure sensor and haptic feedback mechanism, and a pressure sensing and haptic feedback module. The outer surface is configured to receive an application of pressure by an object. The pressure sensor and haptic feedback mechanism has one or more piezos configured to detect and quantify an amount of the application of the pressure to the outer surface by the object, the one or more piezos configured to output a signal indicating the quantified amount of the pressure. The pressure sensing and haptic feedback module is configured to receive the signal from the one or more piezos indicating the quantified amount of the pressure and control the haptic feedback of the pressure sensor and haptic feedback mechanism.

Abstract: A mechanical attach and retention feature is described. An apparatus may include a cover portion that is configured to cover at least a portion of a display device of a computing device having a mobile form factor that is configured to be held by one or more hands of a user. The apparatus includes, a first mid-spine that is rotationally connected to the cover portion, a second mid-spine that is rotationally connected to the first mid-spine, and a connection portion that is rotationally connection to the second mid-spine. The connection portion is configured to form a removable physical coupling to the computing device using a projection that is configured to be disposed within a channel formed in a housing of the computing device and a protrusion disposed on the projection, the protrusion configured to be received within a cavity formed as part of the channel.

Abstract: Key formation techniques are described. In one or more implementations, an input device includes a key assembly including a plurality of keys that are usable to initiate respective inputs for a computing device, a connection portion configured to be removably connected to the computing device physically and communicatively to communicate signals generated by the plurality of keys to the computing device, and an outer layer that is configured to cover the plurality of keys of the key assembly, the outer layer having a plurality of areas that are embossed thereon that indicate one or more borders of respective said keys.

Abstract: 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.

Abstract: Techniques for fabric adhesion to an apparatus are described. According to one or more embodiments, an apparatus is laminated with fabric utilizing one or more fabric layers. In at least some embodiments, multiple adhesive zones are defined on a fabric layer. Each adhesive zone, for instance, has a particular set of properties, such as a particular location on a fabric layer, a particular adhesive thickness, a particular adhesive type, and so forth. In at least some embodiments, different adhesive zones differ from one another based on one or more of their respective properties and thus enable different fabric characteristics to be specified at different adhesive zones.

Abstract: Techniques for a touch input device in a circuit board are described. In at least some embodiments, a touch input device is integrated into a circuit board of an apparatus. For instance, a touch interaction region of the touch input device is formed by cutting and/or etching a portion of the circuit board such that the touch interaction region is moveable with respect to adjacent portions of the circuit board. According to one or more embodiments, a touch input device includes a switch such that movement of the touch interaction region actuates the switch to generate a click input event.

Abstract: Flexible hinge spine 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.

Abstract: Flexible hinge spine 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.

Abstract: 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.

Abstract: Flux fountain techniques are described. In one or more implementations, an apparatus includes a cover configured to be disposed over at least a portion of a display device of a computing device that is configured as a tablet and a connection portion attached to the cover using a flexible hinge. The connection portion is configured to be physically coupled to the computing device using a magnetic coupling device. The magnetic coupling device includes a first magnet that is disposed in the connection portion such that a magnetic field is aligned along an axis and second and third magnets are disposed in the connection portion at opposing sides of the first magnet from each other. The second and third magnets have respective magnetic fields that are aligned along a respective axis that is substantially perpendicular to the axis of the magnetic field of the first magnet.

Abstract: A cover for a mobile computing device is described. The cover comprises two or more hinges so constructed that the hinges are substantially rigid when in-plane and flexible when out-of-plane. The cover includes segments made of a rigid material disposed between the hinges, The cover, when swiveled to the back side of the computing device, forms a contour around an object such as a stylus to secure the object to the back side of the computing device when the object is present. The cover becomes substantially flat and parallel to the back side of the computing device when the object is absent.

Abstract: 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.

Abstract: A mechanical attach and retention feature is described. An apparatus may include a cover portion that is configured to cover at least a portion of a display device of a computing device having a mobile form factor that is configured to be held by one or more hands of a user. The apparatus includes, a first mid-spine that is rotationally connected to the cover portion, a second mid-spine that is rotationally connected to the first mid-spine, and a connection portion that is rotationally connection to the second mid-spine. The connection portion is configured to form a removable physical coupling to the computing device using a projection that is configured to be disposed within a channel formed in a housing of the computing device and a protrusion disposed on the projection, the protrusion configured to be received within a cavity formed as part of the channel.

Abstract: Input device assembly techniques are described. In one or more implementations, an input device includes a key assembly including a plurality of keys that are usable to initiate respective inputs for a computing device, a connection portion configured to be removably connected to the computing device physically and communicatively to communicate signals generated by the plurality of keys to the computing device, a flexible hinge that physically connects the connection portion to the key assembly, and an outer layer that is configured to cover the plurality of keys of the key assembly, form an outer surface of the flexible hinge, and is secured to the connection portion such that the outer layer wraps around at least two sides of the connection portion.

Abstract: Flexible hinge spine 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.

Abstract: Sensor stack venting techniques are described. In one or more implementations, one or more vent structures are formed within layers of a pressure sensitive sensor stack for a device. Vent structures including channels, holes, slots, and so forth are designed to provide pathways for gas released by feature elements to escape. The pathways may be arranged to convey outgases through the layers to designated escape points in a controlled manner that prevents deformities typically caused by trapped gases. The escape points in some layers enable at least some other layers to be edge-sealed. Pathways may then be formed to convey gas from the edge-sealed layer(s) to an edge vented layer(s) having one or more escape points, such that feature elements in the edge-sealed layer(s) remain protected from contaminants.

Abstract: Input device haptics and pressure sensing techniques are described. An input device includes an outer surface, a pressure sensor and haptic feedback mechanism, and a pressure sensing and haptic feedback module. The outer surface is configured to receive an application of pressure by an object. The pressure sensor and haptic feedback mechanism has one or more piezos configured to detect and quantify an amount of the application of the pressure to the outer surface by the object, the one or more piezos configured to output a signal indicating the quantified amount of the pressure. The pressure sensing and haptic feedback module is configured to receive the signal from the one or more piezos indicating the quantified amount of the pressure and control the haptic feedback of the pressure sensor and haptic feedback mechanism.

Abstract: Input device manufacture techniques are described. In one or more implementations, a plurality of layers of a key assembly is positioned in a fixture such that one or more projections of the fixture are disposed through one or more openings in each of the one or more layers. The positioned plurality of layers is secured to each other.

Abstract: Flexible hinge spine 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.