Abstract: Disclosed herein are surgical tool systems and methods of using such to install a fixator in a biological tissue. The systems are capable of accurately measuring torque and rotational velocity and providing real time feedback to a user during surgery.

Abstract: A housing has a bud portion abutting an elongated stem portion. The bud portion is to fit within an ear. The bud portion has a primary sound outlet at its far end that is to be inserted into an outer ear canal, and abuts the stem portion at its near end. A speaker driver is inside the bud portion. Electronic circuitry inside the housing includes a wireless communications interface to receive audio content over-the-air and in response provides an audio signal to the speaker driver. A rechargeable battery as a power source for the electronic circuitry is located inside a cavity of the stem portion. Other embodiments are also described and claimed.

Abstract: A systematic method of introducing obfuscating “organic” noise to a user's content engagement history leverages a recommender system by creating a public history on a client device which is a superset of the user's true engagement history. The method builds up the superset history over time through a client's interaction with the recommender system by simulating organic growth in a user's actual engagement history. The organic superset prevents an adversary with access to the underlying recommendation model from readily distinguishing between signal and noise in a user's query and obfuscates the user's engagement history with the recommender system.

Abstract: Recommender systems often rely on models which are trained to maximize accuracy in predicting user preferences. When the systems are deployed, these models determine the availability of content and information to different users. The gap between these objectives gives rise to a potential for unintended consequences, contributing to phenomena such as filter bubbles and polarization. An analysis of information availability through the lens of user recourse includes a computationally efficient audit for top-N matrix factorization recommender models and may be used for adapting recommender modules to meet targets for model performance parameters within defined contexts.

Abstract: A dynamic balancer includes an outer housing and a spindle assembly rotatably mounted to the outer housing. A frameless motor assembly is connected to selected components of the spindle assembly. A chucking assembly receives a locking member to capture a tire therebetween. The chucking assembly and the locking member are captured in the spindle assembly and rotated by the frameless motor assembly. A spring-biased return cylinder may be used with the dynamic balancer to assist in capturing and releasing the locking member with respect to the chucking assembly. An adjustable encoder assembly may be associated with the motor assembly to monitor a rotational position of the tire and/or spindle assembly.

Abstract: A backpack system is provided including an external frame, and a separate pack bag. The external frame may include at least one adjustable pole member, wherein the at least one adjustable pole member has a height that is adjustable between a daypack position and an extended position, wherein the extended position is higher than the daypack position. The pack bag can have an adjustable height so that it can be configured complementary to the height of the adjustable pole members. The backpack system may include a sling configured for extending between the frame and pack bag providing a space between the frame and pack bag for accommodating heavy or bulky cargo therebetween. The sling can be extended or retracted in order to selectively adjust the distance between the pack bag and frame.

Abstract: An exemplary memory includes a memory cell array configured to store a plurality of data bits each associated with a respective column plane, and an input/output circuit including a compression circuit configured to provide error data based on a comparison between a bit of the plurality of data bits received from the memory cell array and an expected value and based on a respective column plane of the memory cell array with which the bit is associated. The compression circuit is further configured to encode a column plane error code based on the error data for provision to a data terminal.

Abstract: A systematic method of introducing obfuscating “organic” noise to a user's content engagement history leverages a recommender system by creating a public history on a client device which is a superset of the user's true engagement history. The method builds up the superset history over time through a client's interaction with the recommender system by simulating organic growth in a user's actual engagement history. The organic superset prevents an adversary with access to the underlying recommendation model from readily distinguishing between signal and noise in a user's query and obfuscates the user's engagement history with the recommender system.

Abstract: A backpack system is provided including an external frame, and a separate pack bag. The external frame may include at least one adjustable pole member, wherein the at least one adjustable pole member has a height that is adjustable between a daypack position and an extended position, wherein the extended position is higher than the daypack position. The pack bag can have an adjustable height so that it can be configured complementary to the height of the adjustable pole members. The backpack system may include a sling configured for extending between the frame and pack bag providing a space between the frame and pack bag for accommodating heavy or bulky cargo therebetween. The sling can be extended or retracted in order to selectively adjust the distance between the pack bag and frame.

Abstract: A method of selecting an instrument set for an orthopedic implant procedure. The method utilizes a computer programmed with a data structure configured to store (i) a set of implant components and implant instruments; and (ii) a set of surgical instruments utilized in performing the procedure. The method selects a sub-set of implant components and implant instruments based upon a determination of component types and then selects a sub-set of surgical instruments based upon a determination of surgical techniques. The method arranges the sub-set of surgical instruments and implant instruments into a substantially specific order based upon a determination of a sequence of bone cuts to be performed in the procedure.

Abstract: A dynamic balancer includes an outer housing and a spindle assembly rotatably mounted to the outer housing. A frameless motor assembly is connected to selected components of the spindle assembly. A chucking assembly receives a locking member to capture a tire therebetween. The chucking assembly and the locking member are captured in the spindle assembly and rotated by the frameless motor assembly. A spring-biased return cylinder may be used with the dynamic balancer to assist in capturing and releasing the locking member with respect to the chucking assembly. An adjustable encoder assembly may be associated with the motor assembly to monitor a rotational position of the tire and/or spindle assembly.

Abstract: A method of selecting an instrument set for an orthopedic implant procedure. The method utilizes a computer programmed with a data structure configured to store (i) a set of implant components and implant instruments; and (ii) a set of surgical instruments utilized in performing the procedure. The method selects a sub-set of implant components and implant instruments based upon a determination of component types and then selects a sub-set of surgical instruments based upon a determination of surgical techniques. The method arranges the sub-set of surgical instruments and implant instruments into a substantially specific order based upon a determination of a sequence of bone cuts to be performed in the procedure.

Abstract: A rooftop device has a generally planar platform and first and second legs which extend from the platform and are pivotally attached to the platform and configured for contact with and mounting to a roof surface to support the platform in a generally horizontal position on a roof.

Abstract: A bodyweight resistance exercise apparatus has a base portion, a platform secured to the base portion, main vertical supports coupled to an end of the base portion, upper vertical supports coupled to an upper end of the main vertical supports and angled relative thereto, and lifting straps coupled through the upper vertical supports and to the main vertical supports. Adjustability may be provided in a number of ways, including with respect to the location of the platform along the base portion, the angle of the main vertical supports relative to the base portion, the rotational position of the upper vertical supports relative to the main vertical supports, and the attachment of the lifting straps along the main vertical supports. When a desired configuration is achieved, a user may perform bodyweight resistance exercise in a core-stabilized position.

Abstract: One or more techniques and/or systems are disclosed for a device for facilitation of removal of snow and/or ice from a target surface. The device can comprise a cutting edge configured to be selectively engaged with a snow plow bottom. The cutting edge can comprise a front surface, rear surface, and a bottom surface. The front surface can be configured at a desired front angle to vertical, comprising an acute angle with respect to the bottom surface. The rear surface may comprise a rear extension rearwardly projecting from the front surface. The rear extension can comprise a rear face surface configured relatively perpendicular to a target surface, and to provide a back-drag surface for the cutting edge.

Abstract: A wireless mesh communication protocol that dynamically assigns communication time-slots and frequencies to mesh nodes. A first node is established as a PC that sequentially polls other nodes. A second node responds at a predetermined time with information that includes database records, and then a third node responds similarly. The second node is then established as the PC and the first node is polled during dynamically allocated time-slots and on a frequency that depend on the second node's database records. The third node is then established as a PC and acts similarly. In both cases the first node responds by sending information and data records. The first node is then re-established as the PC. The first node then polls the second and third nodes at times and frequencies that depend on the first node's database records.

Abstract: A rooftop device has a generally planar platform and first and second legs which extend from the platform and are pivotally attached to the platform and configured for contact with and mounting to a roof surface to support the platform in a generally horizontal position on a roof.

Abstract: A digital-to-analog converter (DAC) is disclosed. According to some embodiments of the present disclosure, a DAC may include a plurality of current-steering elements, wherein each respective current-steering element is configured to operate as instructed by a respective calibration signal during respective steps in a calibration cycle, and at least one current-steering element is configured to operate as instructed by a first control signal during at least a first step in which the at least one current-steering element is not being calibrated, and operate as instructed by a second control signal during at least a second step in which the at least one current-steering element is not being calibrated.

Abstract: A digital-to-analog converter (DAC) is disclosed. According to some embodiments of the present disclosure, a DAC may include a plurality of current-steering elements, wherein each respective current-steering element is configured to operate as instructed by a respective calibration signal during respective steps in a calibration cycle, and at least one current-steering element is configured to operate as instructed by a first control signal during at least a first step in which the at least one current-steering element is not being calibrated, and operate as instructed by a second control signal during at least a second step in which the at least one current-steering element is not being calibrated.

Abstract: Method and apparatus for providing a wireless mesh network and network node are described. More particularly, a network having network node neighborhoods is described. A node comprises a multi-sectored antenna and a transceiver controller. Nodes are configured for installation without antenna pointing and without pre-coordination with the network. Software architecture for the node is also described.