Abstract: This document relates to hardware protection of differential privacy techniques. One example obtains multiple instances of encrypted telemetry data within a secure enclave and processes the encrypted telemetry data to obtain multiple instances of unencrypted telemetry data. The example also processes, within the secure enclave, the multiple instances of unencrypted telemetry data to obtain a perturbed aggregate. The example also releases the perturbed aggregate from the secure enclave.

Abstract: User interfaces, methods, systems, and computer-readable media for activating and/or displaying text input systems on display devices may include: (a) displaying a text input system activation target at a user changeable location on a display device; (b) receiving user input directed to the activation target; and (c) activating a text input system in response to the user input. Such user interfaces, methods, and systems further may include (d) displaying a pre-interaction condition of the activation target; (e) receiving user input directed to the activation target in this pre-interaction condition; and (f) changing an appearance of the activation target from the pre-interaction condition to a larger size and/or a different visual appearance in response to this user input. Additional aspects of this invention relate to computer-readable media for providing user interfaces, systems, and methods as described above.

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.