Abstract: An apparatus is disclosed to monitor movement of a held object in a virtual reality system. The apparatus comprises a primary tracking system with a first sensor to monitor movement of the user's hand, and a secondary tracking system with a second sensor to monitor a position of the held object. The position is measured in relation to the hand movement.

Abstract: Techniques for simulating a quantum circuit based on fusion of at least a portion of a measure gate is provided. Data representing a quantum circuit comprising a quantum gate and a measure gate is received. The measure gate in the quantum circuit is divided into one or more virtual gates and at least one of the one or more virtual gates is fused with the quantum gate. The gate fusion combines the operations of the fused gates and cache blocking to more efficiently simulate the quantum circuit. In one embodiment, the simulation of the quantum circuit is executed locally on a computing device. Alternatively, the simulation of the quantum circuit is performed remotely over a network via an application program interface (“API”) and results of the simulation are reported via the API.

Abstract: An input device includes a sensor and a housing. The sensor is adapted to provide cursor control on a display based on relative movement between the sensor and a reference surface. The housing at least partially contains the sensor and is adapted to be selectively manipulable relative to the reference surface into a first position to cause operation of the sensor at a first precision level and into a second position to cause operation of the sensor at a second precision level different from the first precision level.

Abstract: An example system includes a camera to capture an image of at least one physical input device, a virtual reality (VR) environment display portion to generate a VR environment, a window forming portion to create a window in the VR environment, the position of the window in the VR environment corresponding to a physical location of an interaction area that includes the at least one physical input device, an input device display portion to form an image of the at least one physical input device from the camera, and a VR headset including a head-mounted display to display a composite image of the VR environment, the window and the image of the at least one physical input device. The composite image includes the image of the at least one physical input device within the window.

Abstract: A working machine includes a machine body, a support bracket protruding forward from the machine body, a swing bracket pivotally supported by the support bracket to be capable of horizontally pivoting, a boom pivotally supported by the swing bracket to be capable of pivoting up and down, a swing sensor configured to detect a position of the swing bracket, and a controller configured to acquire a detection signal from the swing sensor and to control a swinging movement defined as a pivotal movement of the swing bracket. The controller includes a swinging stopper unit to stop the swinging movement when the swing bracket in the pivotal movement reaches a center position at which the boom is orientated in a forward direction of the machine body.

Abstract: An operation device includes a grip to be grasped by an operator, and a supporting portion supporting the grip and allowing the grip to be turned in an arbitrary turning direction. A rotation fulcrum of the grip is positioned inside the grip. In this manner, the present invention requires less hand operation and is configured to be stably operated even when a machine body is shaken.

Abstract: A working machine, in which a detection device for detecting a swing position of a supported member is prevented from being damaged, includes a support member pivotally supporting the supported member via a pivot, and a cylinder telescopically moved by extension and contraction movement of its piston rod with respect to its cylinder tube by hydraulic fluid flowing through a fluid passage formed in the piston rod. The cylinder tube is pivotally supported by a first end portion of the support member, and the piston rod is pivotally supported by a second end portion of the support member. The detection device for detecting a telescopic movement state of the cylinder is provided between the cylinder and the support member.

Abstract: A model controller includes a trackball having a spherical surface with one of latitudinal or longitudinal data tracks formed thereon. The model controller includes a base unit including a first image sensor adjacent to the trackball to capture images of the data tracks, wherein the captured images of the data tracks include orientation information to determine an absolute orientation of the trackball.

Abstract: Systems and methods for processing hierarchical tasks in a garbage collection mechanism are provided. The method includes determining chunks in a task queue. Each chunk is a group of child tasks created after processing one task. The method includes popping, by an owner thread, tasks from a top side of the task queue pointed at by a chunk in a first in first out (FIFO) pop. The method also includes stealing, by a thief thread, tasks from a chunk in an opposite side of the task queue.

Abstract: A model controller includes a trackball having a spherical surface with one of latitudinal or longitudinal data tracks formed thereon. The model controller includes a base unit including a first image sensor adjacent to the trackball to capture images of the data tracks, wherein the captured images of the data tracks include orientation information to determine an absolute orientation of the trackball.

Abstract: A stylus includes a housing, a tip portion at an end of the housing, and a control module within the housing, with the housing including a shape-changeable portion, and the control module to generate a first signal in response to the shape-changeable portion of the housing having a first effective cross-sectional area and generate a second signal in response to the shape-changeable portion of the housing having a second, different effective cross-sectional area.

Abstract: A distributed system is provided that includes member nodes and a leader node. Each member node stores a database and updates the database by performing common ones of a plurality of transactions. The leader node generates a batch, to be executed by each member node, which includes two or more transactions lacking an access conflict from among the plurality of transactions. The leader node includes: a section that generates an access set as a set of database entries to be accessed by each transaction to be executed; a section that generates the batch, based on the access set of each transaction to be executed; and a leader-side section that performs a consensus process for the batch among the leader and member nodes. Each member node includes the database; a member-side section that performs a consensus process for the batch; and a section that performs parallel execution of batch transactions.

Abstract: In example implementations, an apparatus is provided. The apparatus includes a first channel, a second channel, a physical control interface, and a processor in communication with the physical control interface. The first channel provides a virtual image. The second channel provides a second image. The physical control interface receives the first channel and the second channel. The processor mixes a view of the virtual image and the second image based on a setting of the physical control interface.

Abstract: Example implementations relate to control systems for mobile robots. An example control system obtains sensor data from multiple onboard sensors of a robot, and, based at least in part on input detected from the multiple on-board sensors, the control system determines a physical characteristic of a human actor moving in a region where the robot operates. Based on the physical characteristic, the control system may detect a mood of the human actor and alter the operation of the robot in response to the detected mood.

Abstract: A computer-implemented method for balancing loads of a distributed system having a plurality of nodes via a load balancing scheme is presented. The method includes determining an average load of the plurality of nodes once a request is sent to the distributed system, determining a threshold load value based on the determined average load of the plurality of nodes, and randomly selecting a node of the plurality of nodes based on a hash value. The method further includes determining whether the randomly selected node is above or below the threshold load value, and, if the randomly selected node is above the threshold load value, randomly selecting another node, and if the randomly selected node is below the threshold load value, then selecting such node to process the request.

Abstract: A computer-implemented method is provided for compilation rescheduling from among four compilation levels comprising level 1, level 2, level 3, and level 4 on a parallel distributed computing framework running processes for a plurality of jobs of a virtual machine. The method bypasses a program analysis overhead that includes measuring a compiled method execution time by identifying completed compilation levels of a Just In Time compilation. The method finds a repetition of a same process in the processes for the plurality of jobs of the virtual machine from profiles by comparing main class names, virtual machine parameters, and Jar file types therein.

Abstract: A computer-implemented method, system, and computer program product are provided to reduce stealing in a processor. The method includes allocating a private space for a first thread in a memory. The method also includes generating a plurality of child tasks by the first thread responsive to processing a first task. The method additionally includes storing a portion of the plurality of child tasks in the private space removing the ability of other threads from popping the portion of the plurality of child tasks, with a remainder of the plurality of child tasks being stored in a public space. The method further includes popping the portion of the plurality of child tasks from the private space by the first thread.

Abstract: Verified snapshots are generated by obtaining, from one of a plurality of first nodes, a difference between a common data at a first time point and the common data at a second time point that is different from the first time point, generating a first snapshot of the common data at the first time point based on the difference, obtaining a hash of the common data at the first time point from one of the plurality of first nodes, and verifying the first snapshot at the first time point with the hash of the common data at the first time point.

Abstract: A working machine includes a prime mover, a hydraulic pump to be driven by power of the prime mover to output operation fluid, a hydraulic actuator to be actuated by the operation fluid outputted from the hydraulic pump, a first setting member to accept selection of a set revolving speed of the prime mover, a second setting member to accept selection of a set speed of the hydraulic actuator, a revolving speed controller portion to control operation of the prime mover based on the set revolving speed, and a speed controller portion to control operation of the hydraulic actuator based on the set speed. The speed controller portion being configured to change an operation speed of the hydraulic actuator in accordance with the set revolving speed accepted by the first setting member, the operation speed of the hydraulic actuator corresponding to the set speed accepted by the second setting member.

Abstract: A somatosensory feedback system may include at least one somatosensory feedback device to, when actuated, invoke a sensation in a user. The somatosensory feedback system may instruct the at least one somatosensory feedback device to actuate to indicate a passage of time.