Abstract: The subject matter of this specification can be embodied in, among other things, a computer-implemented method that includes obtaining, at a computer system, a plurality of contact identifiers for a computer account holder, wherein the identifiers represent a plurality of different communication modes; identifying a handle for the account holder, wherein the handle is associated with a uniform resource locator; and correlating the handle with the plurality of contact identifiers, and storing the handle and plurality of contact identifiers together so as to permit retrieval of the contact identifiers in response to identification of the handle.

Abstract: The subject matter of this specification can be embodied in, among other things, a computer-implemented method that includes obtaining, at a computer system, a plurality of contact identifiers for a computer account holder, wherein the identifiers represent a plurality of different communication modes; identifying a handle for the account holder, wherein the handle is associated with a uniform resource locator; and correlating the handle with the plurality of contact identifiers, and storing the handle and plurality of contact identifiers together so as to permit retrieval of the contact identifiers in response to identification of the handle.

Abstract: The subject matter of this specification can be embodied in, among other things, a computer-implemented method that includes obtaining, at a computer system, a plurality of contact identifiers for a computer account holder, wherein the identifiers represent a plurality of different communication modes; identifying a handle for the account holder, wherein the handle is associated with a uniform resource locator; and correlating the handle with the plurality of contact identifiers, and storing the handle and plurality of contact identifiers together so as to permit retrieval of the contact identifiers in response to identification of the handle.

Abstract: The subject matter of this specification can be embodied in, among other things, a computer-implemented method that includes obtaining, at a computer system, a plurality of contact identifiers for a computer account holder, wherein the identifiers represent a plurality of different communication modes; identifying a handle for the account holder, wherein the handle is associated with a uniform resource locator; and correlating the handle with the plurality of contact identifiers, and storing the handle and plurality of contact identifiers together so as to permit retrieval of the contact identifiers in response to identification of the handle.

Abstract: The subject matter of this specification can be embodied in, among other things, a computer-implemented method that includes obtaining, at a computer system, a plurality of contact identifiers for a computer account holder, wherein the identifiers represent a plurality of different communication modes; identifying a handle for the account holder, wherein the handle is associated with a uniform resource locator; and correlating the handle with the plurality of contact identifiers, and storing the handle and plurality of contact identifiers together so as to permit retrieval of the contact identifiers in response to identification of the handle.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for resolving erroneous movement signals and for providing navigation instructions. One of the methods includes receiving data from two or more sensors, synchronizing the received data, determining a first subset of the synchronized data from the camera for a particular period of time and a second subset of the synchronized data from the other sensor for the particular period of time, comparing the first subset with the second subset to determine whether the first subset and the second subset indicate an erroneous movement signal, based on determining that the first subset and the second subset indicate an erroneous movement signal, selecting data for one of the sensors based on a sensor priority scheme for the sensors, and resolving the erroneous movement signal based on the selected data for the one of the sensors.

Abstract: A computer-implemented user interface method for a computing device is disclosed. The method includes associating each of a plurality of telephone keys with a direction of each key relative to a center of a telephone keypad, receiving a contact from a user of the device at a location on a touchscreen display of a computing device and an input at a direction relative to the location of the user contact, and causing a telephone number to be entered on the computing device based on the direction of each key relative to the center of the telephone keypad corresponding to the direction relative to the location of the user contact.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for resolving erroneous movement signals and for providing navigation instructions. One of the methods includes receiving data from two or more sensors, synchronizing the received data, determining a first subset of the synchronized data from the camera for a particular period of time and a second subset of the synchronized data from the other sensor for the particular period of time, comparing the first subset with the second subset to determine whether the first subset and the second subset indicate an erroneous movement signal, based on determining that the first subset and the second subset indicate an erroneous movement signal, selecting data for one of the sensors based on a sensor priority scheme for the sensors, and resolving the erroneous movement signal based on the selected data for the one of the sensors.

Abstract: The subject matter of this specification can be embodied in, among other things, a computer-implemented method that includes obtaining, at a computer system, a plurality of contact identifiers for a computer account holder, wherein the identifiers represent a plurality of different communication modes; identifying a handle for the account holder, wherein the handle is associated with a uniform resource locator; and correlating the handle with the plurality of contact identifiers, and storing the handle and plurality of contact identifiers together so as to permit retrieval of the contact identifiers in response to identification of the handle.

Abstract: The subject matter of this specification can be embodied in, among other things, a computer-implemented method that includes obtaining, at a computer system, a plurality of contact identifiers for a computer account holder, wherein the identifiers represent a plurality of different communication modes; identifying a handle for the account holder, wherein the handle is associated with a uniform resource locator; and correlating the handle with the plurality of contact identifiers, and storing the handle and plurality of contact identifiers together so as to permit retrieval of the contact identifiers in response to identification of the handle.

Abstract: A computer-implemented user interface method for a computing device is disclosed. The method includes associating each of a plurality of telephone keys with a direction of each key relative to a center of a telephone keypad, receiving a contact from a user of the device at a location on a touchscreen display of a computing device and an input at a direction relative to the location of the user contact, and causing a telephone number to be entered on the computing device based on the direction of each key relative to the center of the telephone keypad corresponding to the direction relative to the location of the user contact.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for resolving erroneous movement signals and for providing navigation instructions. One of the methods includes receiving data from two or more sensors, synchronizing the received data, determining a first subset of the synchronized data from the camera for a particular period of time and a second subset of the synchronized data from the other sensor for the particular period of time, comparing the first subset with the second subset to determine whether the first subset and the second subset indicate an erroneous movement signal, based on determining that the first subset and the second subset indicate an erroneous movement signal, selecting data for one of the sensors based on a sensor priority scheme for the sensors, and resolving the erroneous movement signal based on the selected data for the one of the sensors.

Abstract: A computer-implemented user interface method for a computing device is disclosed. The method includes associating each of a plurality of telephone keys with a direction of each key relative to a center of a telephone keypad, receiving a contact from a user of the device at a location on a touchscreen display of a computing device and an input at a direction relative to the location of the user contact, and causing a telephone number to be entered on the computing device based on the direction of each key relative to the center of the telephone keypad corresponding to the direction relative to the location of the user contact.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for controlling a user device with a wearable device. One of the methods includes receiving, by a user device and from a wearable device, data sets that each represent a sequence of physical positions of the wearable device in response to movement of the wearable device, determining, for each data set, whether the data set indicates a predetermined sequence of positions of the wearable device, for only each data set determined to indicate a predetermined sequence of positions of the wearable device, determining a predetermined sequence of actions to perform on the user device that correspond with the predetermined sequence of positions, and for only each data set determined not to indicate a predetermined sequence of positions of the wearable device, not taking an action in response to the data set.

Abstract: A system for using mobile robots that track visual features of a drawing to create a tangible tactile interface for a user. The user places a hand or finger on a mobile robot to trace and consequently cognize features of interest. The mobile robot tracks visual features and reports a location of the mobile robot to a guidance system. The guidance system presents location information to the user.

Abstract: The subject matter of this specification can be embodied in, among other things, a computer-implemented method that includes obtaining, at a computer system, a plurality of contact identifiers for a computer account holder, wherein the identifiers represent a plurality of different communication modes; identifying a handle for the account holder, wherein the handle is associated with a uniform resource locator; and correlating the handle with the plurality of contact identifiers, and storing the handle and plurality of contact identifiers together so as to permit retrieval of the contact identifiers in response to identification of the handle.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for resolving erroneous movement signals and for providing navigation instructions. One of the methods includes receiving data from two or more sensors, synchronizing the received data, determining a first subset of the synchronized data from the camera for a particular period of time and a second subset of the synchronized data from the other sensor for the particular period of time, comparing the first subset with the second subset to determine whether the first subset and the second subset indicate an erroneous movement signal, based on determining that the first subset and the second subset indicate an erroneous movement signal, selecting data for one of the sensors based on a sensor priority scheme for the sensors, and resolving the erroneous movement signal based on the selected data for the one of the sensors.

Abstract: A computer-implemented user interface method for a computing device is disclosed. The method includes associating each of a plurality of telephone keys with a direction of each key relative to a center of a telephone keypad, receiving a contact from a user of the device at a location on a touchscreen display of a computing device and an input at a direction relative to the location of the user contact, and causing a telephone number to be entered on the computing device based on the direction of each key relative to the center of the telephone keypad corresponding to the direction relative to the location of the user contact.

Abstract: A computer-implemented user interface method for a computing device is disclosed. The method includes associating each of a plurality of telephone keys with a direction of each key relative to a center of a telephone keypad, receiving a contact from a user of the device at a location on a touchscreen display of a computing device and an input at a direction relative to the location of the user contact, and causing a telephone number to be entered on the computing device based on the direction of each key relative to the center of the telephone keypad corresponding to the direction relative to the location of the user contact.

Abstract: A mobile computing device includes a housing portion defining a front face and a substantial planar back face that is opposed to and directed away from the front face. The device also includes a touch screen input mechanism arranged on the front face and a plurality of tactile guides on the back face. Program code is stored and executable on the device so that, when the code is executed, it identifies a contact input area on the touch screen, where a user can make selections on the touch screen, as being aligned with one of the plurality of tactile structures.