Abstract: Systems and methods for safeguarding against interruptions when updating data of an electronic device are provided. In some aspects, a method includes applying a current operation of a plurality of operations to the data. The plurality of operations is associated with a current update for the data. The method also includes generating current a current version of a checkpoint if the applying step has completed. The current version of the checkpoint comprises a next operation indicator that specifies a next operation of the plurality of operations to be applied to the data. The method also includes storing the current version of the checkpoint on the electronic device such that the current version of the checkpoint persists across reboot of the electronic device.

Abstract: The surface of an touch-sensitive input device may act as a physical button that the user may push down to perform a click or other operation. For example, the user may push down the surface of the input device with one finger for a left click and push down the surface of the input device with two fingers for a right click. In one aspect, a system for detecting a left click or a right click when the user pushes down the surface of the input device is provided. When the system first detects that the surface of the input device is pushed down, the system may wait for a short period of time before making a determination of whether the user is pushing down the surface with one finger or two fingers. During this time, the system may collect additional information to make a more reliable determination.

Abstract: A trackpad system to filter movement includes a surface, a sensor operably coupled to the surface, a controller operably coupled to the sensor, a bus operably coupled to the controller, a device driver configured to communicate with the bus, and a gesture module configured to communicate with the device driver. The gesture module includes instructions to determine if each contact detected on the surface for an input frame was previously present on the surface. If the contact was previously present on the surface, the system computes, for each axis, position changes for the contact based on a record associated with the contact. The system determines if the position changes are unexpected based on a set of rules. If the position changes are unexpected, the system suppresses a display of movement associated with the contact for the input frame for the axis.

Abstract: The surface of an touch-sensitive input device may act as a physical button that the user may push down to perform a click or other operation. For example, the user may push down the surface of the input device with one finger for a left click and push down the surface of the input device with two fingers for a right click. In one aspect, a system for detecting a left click or a right click when the user pushes down the surface of the input device is provided. When the system first detects that the surface of the input device is pushed down, the system may wait for a short period of time before making a determination of whether the user is pushing down the surface with one finger or two fingers. During this time, the system may collect additional information to make a more reliable determination.

Abstract: A non-transitory computer-readable storage medium may comprise instructions stored thereon for recognizing gestures on a tactile input device. The instructions may be configured to cause a computing system to at least receive, from a sensor of the tactile input device, a signal representing a first contact on the tactile input device and subsequent release of the first contact from the tactile input device, receive, from the sensor of the tactile input device, a signal representing a second contact on the tactile input device after the first contact is released, the second contact being maintained and changing location on the tactile input device, and recognize the first contact and the second contact as a single gesture if the second contact occurs within a re-tap threshold period of time after the first contact, and the second contact begins within a maximal threshold distance on the tactile input device from the first contact.

Abstract: The surface of an touch-sensitive input device may act as a physical button that the user may push down to perform a click or other operation. For example, the user may push down the surface of the input device with one finger for a left click and push down the surface of the input device with two fingers for a right click. In one aspect, a system for detecting a left click or a right click when the user pushes down the surface of the input device is provided. When the system first detects that the surface of the input device is pushed down, the system may wait for a short period of time before making a determination of whether the user is pushing down the surface with one finger or two fingers. During this time, the system may collect additional information to make a more reliable determination.

Abstract: The surface of an touch-sensitive input device may act as a physical button that the user may push down to perform a click or other operation. For example, the user may push down the surface of the input device with one finger for a left click and push down the surface of the input device with two fingers for a right click. In one aspect, a system for detecting a left click or a right click when the user pushes down the surface of the input device is provided. When the system first detects that the surface of the input device is pushed down, the system may wait for a short period of time before making a determination of whether the user is pushing down the surface with one finger or two fingers. During this time, the system may collect additional information to make a more reliable determination.

Abstract: The surface of an touch-sensitive input device may act as a physical button that the user may push down to perform a click or other operation. For example, the user may push down the surface of the input device with one finger for a left click and push down the surface of the input device with two fingers for a right click. In one aspect, a system for detecting a left click or a right click when the user pushes down the surface of the input device is provided. When the system first detects that the surface of the input device is pushed down, the system may wait for a short period of time before making a determination of whether the user is pushing down the surface with one finger or two fingers. During this time, the system may collect additional information to make a more reliable determination.

Abstract: The present invention pertains to differential updating of an operating system in a client device. A delta update file includes an ordered list of operations to be performed on the new install partition in memory that will port from the old install partition. A binary differential compression algorithm may be used to determine differences for the update and to compress the data being transmitted to the client device. Blocks in the partition may cyclically depend from one another. Edges are cut to break cycles. During system operation, disk images are scanned. File operations are created and a blocks vector is developed. A graph is created where the edge weights are set equal to the number of blocks. Given this, cycles are then broken and a final order resulting from a topological sort is produced.