Abstract: A system includes a processor circuit and a memory including machine-readable instructions. When executed by the processor circuit, the instructions cause the processor circuit to identify an item in a field of view of a user wearing a head-mounted display device. The instructions further cause the processor circuit to determine a monetary value associated with the item. The instructions further cause the processor circuit to determine a gaming offer associated with the monetary value. The instructions further cause the processor circuit to cause the head-mounted display device to display the gaming offer, wherein the gaming offer is associated with the item in the field of view of the user.

Abstract: A utility knife includes a handle having a body and a receiving aperture. The utility knife further includes a collet at least partially receivable in the receiving aperture, and a sleeve that is engageable with and that surrounds the collet. The collet is configured to alternately receive one of a portion of a blade of a first type in a first slot and a portion of a blade of a second type in a second slot. The collet and the sleeve are co-rotatable relative the handle to move the collet to a secured position in which one of the blade of the first type and the blade of the second type are secured to the collet.

Abstract: Sensors are disclosed that detect whether a cannula is properly inserted to its full depth in a subject's skin. The sensors may be used with a blood glucose monitor, or with a continuous insulin infusion pump, infusion set, or other system involving intermittent or continuous testing and/or drug delivery.

Abstract: A printing system includes: a plurality of unitary objects each having a unique identification code, a plurality of fixtures arranged on a base, and a printer controller. Each unitary object includes a uniquely-shaped three-dimensional body fixed to a plate by a connection mechanism. Each fixture includes: a fixture block defining a printing opening; and a plate guide defined in the fixture block and configured to receive the plate. A target region of the three-dimensional body is aligned within the printing opening of the fixture block when the plate is fixed within the plate guide. The printer controller is configured to: detect the unique identification code of each unitary object; and control an ink dispenser to print a unique topographical design on each aligned target region of each three-dimensional body, the unique topographical design being associated with the detected unique identification code.

Abstract: A roulette wheel device, and related devices, systems, and methods, includes a base coupled to a table, the base having a circular ball track within a circular rim. The roulette wheel device further includes a circular wheelhead rotatably coupled to the base within the ball track. The wheelhead includes a circular ring having a plurality of pockets, wherein the circular ball track is sloped downwardly toward the circular ring to direct a roulette ball into one of the plurality of pockets. The wheelhead further includes a circular display subassembly including a display device to selectively display graphical elements corresponding to the plurality of pockets. The circular ball track, the circular ring, and the circular display subassembly are substantially concentric.

Abstract: Embodiments are directed to sharing namespaces across file system clusters. A file in a spoke file system may be determined based on a command provided to the spoke file system such that the file may be associated with an inode mask. Data blocks associated with the file may be determined based on the command and the inode mask such that the data blocks may be absent from the spoke file system. Requests for leases may be generated based on the absent data blocks such that each lease request corresponds to a portion of the absent data blocks Employing the leases provided by a hub file system to: copy the absent data blocks from the hub file system where each portion of absent data blocks may be associated with a lease; updating the inode mask to include the leases and each copied portion of absent blocks.

Abstract: A system and a method are disclosed for authenticating a user of a mobile device using Unstructured Supplementary Service Data (“USSD”) protocol. The mobile device generates a One-Time Password (“OTP”) code and sends that OTP code to a telecommunications server that forwards the content of the USSD message to the application server using an included short code. The OTP code is also sent out to the application server outside of the USSD protocol. When the application server receives both transmissions, the application server compares the OTP codes of these transmissions and determines whether the codes match. If the OTP codes match, the application server determines that authentication is successful and transmits an authentication token to the mobile device that is used to secure communications between the mobile device and the application server.

Abstract: Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing at least one program, and a method for rendering interactive visualizations of high volume streaming data. Streaming data that describes a plurality of events is loaded in memory. The streaming data includes geospatial data that specifies a source location and a destination location for each event. Visual metaphors representing the events are rendered using a visualization mathematical model that defines, for each visual metaphor, a spatial position and opacity for each point along the visual metaphor throughout a sliding time window.

Abstract: To set data breakpoints on properties and certain other functions, constituent data locations (CDLs) that can contribute to computation of the property value or other function result are identified, and respective constituent data breakpoints are added at one or more CDLs by data breakpoint adder code. Each constituent data breakpoint will suspend execution of an inspectable software in response to occurrence of a CDL data entry. The CDLs are identified by CDL identifier code using static data flow analysis, enhanced interpretation, or disassembly, with recursion as appropriate. Kernel or runtime routines, and other routines designated as known, can be excluded from the CDL search. Data locations marked read-only, or that are effectively read-only because they will not be written, can also be excluded.

Abstract: Expressly turning tracing on and off at each juncture between code that a developer wants to have traced and other code may reduce trace file size but adds computational cost. Described technologies support selectively tracing a process's execution, with some extra tracing done beyond the code the developer wanted traced, but with significantly reduced computational cost, by reducing the number of trace enablement and disablement operations. A trace controller uses a tracing disablement distance variable whose values indicate the computational distance from trace disablement. A distance variable modifier automatically moves the distance variable closer to a stop-tracing value as the process executes. The amount of extra tracing is balanced against the reduction in trace enablement/disablement operations by tuning thresholds, based on information about routine size and computational cost.

Abstract: A system and a method are disclosed for authenticating a user of a mobile device using Unstructured Supplementary Service Data (“USSD”) protocol. The mobile device generates a one-time-password (“OTP”) code and sends that OTP code to a telecommunications server that forwards the content of the USSD message to the application server using an included short code. The OTP code is also sent out to the application server outside of the USSD protocol. When the application server receives both transmissions, the application server compares the OTP codes of these transmissions and determines whether the codes match. If the OTP codes match, the application server determines that authentication is successful and transmits an authentication token to the mobile device that is used to secure communications between the mobile device and the application server.

Abstract: Expressly turning tracing on and off at each juncture between code that a developer wants to have traced and other code may reduce trace file size but adds computational cost. Described technologies support selectively tracing a process's execution, with some extra tracing done beyond the code the developer wanted traced, but with significantly reduced computational cost, by reducing the number of trace enablement and disablement operations. A trace controller uses a tracing disablement distance variable whose values indicate the computational distance from trace disablement. A distance variable modifier automatically moves the distance variable closer to a stop-tracing value as the process executes. The amount of extra tracing is balanced against the reduction in trace enablement/disablement operations by tuning thresholds, based on information about routine size and computational cost.

Abstract: Expressly turning tracing on and off at each juncture between code that a developer wants to have traced and other code may reduce trace file size but adds computational cost. Described technologies support selectively tracing a process's execution, with some extra tracing done beyond the code the developer wanted traced, but with significantly reduced computational cost, by reducing the number of trace enablement and disablement operations. A trace controller uses a tracing disablement distance variable whose values indicate the computational distance from trace disablement. A distance variable modifier automatically moves the distance variable closer to a stop-tracing value as the process executes. The amount of extra tracing is balanced against the reduction in trace enablement/disablement operations by tuning thresholds, based on information about routine size and computational cost.

Abstract: Described technologies support selectively tracing a process's execution, with some extra tracing done beyond the code the developer wanted traced, but with significantly reduced computational cost, by reducing the number of trace enablement and disablement operations. A trace controller uses a tracing disablement distance variable whose values indicate the computational distance from trace disablement. A distance variable modifier automatically moves the distance variable closer to a stop-tracing value as the process executes. A create task function is modified to include the setting of an indicator that a newly created task is to be traced if a current task or thread is being traced. An execute task function is modified to request the tracing of the newly created task when it is executed based on the indicator, thereby enabling selective tracing that operates across process boundaries and traces asynchronous code execution.

Abstract: To set data breakpoints on properties and certain other functions, constituent data locations (CDLs) that can contribute to computation of the property value or other function result are identified, and respective constituent data breakpoints are added at one or more CDLs by data breakpoint adder code. Each constituent data breakpoint will suspend execution of an inspectable software in response to occurrence of a CDL data entry. The CDLs are identified by CDL identifier code using static data flow analysis, enhanced interpretation, or disassembly, with recursion as appropriate. Kernel or runtime routines, and other routines designated as known, can be excluded from the CDL search. Data locations marked read-only, or that are effectively read-only because they will not be written, can also be excluded.

Abstract: Described technologies aid execution control during replays of traced program behavior. Cross-level mapping correlates source code, an intermediate representation, and native instructions in a trace. The trace includes a record of native code instructions which were executed by a runtime-managed program. The trace does not include any executing instance of the runtime. Breakpoints are set to align trace locations with source code expressions or statements, and to skip over garbage collection and other code unlikely to interest a developer. A live debugging environment is adapted to support trace-based reverse execution. An execution controller in a debugger or other tool may utilize breakpoint ranges, cross-level mappings, backward step-out support, and other items to control a replay execution of the trace.

Abstract: Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing at least one program, and a method for rendering interactive visualizations of high volume streaming data. Streaming data that describes a plurality of events is loaded in memory. The streaming data includes geospatial data that specifies a source location and a destination location for each event. Visual metaphors representing the events are rendered using a visualization mathematical model that defines, for each visual metaphor, a spatial position and opacity for each point along the visual metaphor throughout a sliding time window.

Abstract: Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing at least one program, and a method for rendering interactive visualizations of high volume streaming data. Streaming data that describes a plurality of events is loaded in memory. The streaming data includes geospatial data that specifies a source location and a destination location for each event. Visual metaphors representing the events are rendered using a visualization mathematical model that defines, for each visual metaphor, a spatial position and opacity for each point along the visual metaphor throughout a sliding time window.

Abstract: Described technologies extend the information available from an execution trace of a program by providing heuristically-derived values for memory contents when the trace does not include data expressly showing the value of a memory cell at a particular execution time. Various heuristics are described. The heuristics may use information about the memory cell at other times to produce the derived value. Some heuristics use other trace data, such as whether the memory cell is in a stack, whether there are gaps in the trace, or whether garbage collection or compilation occurred near the time in question. Grounds for the derived value are reported along with the derived value. A time-travel debugger or other program analysis tool can then present the derived values to users, or make other use of the derived values and grounds to assist debugging and other efforts to improve the functioning of a computing system.