Abstract: Robotic systems for orthopedic surgery are provided. The robotic systems may include at least first and second motors coupled to each other. An output shaft of one of the motors may be connectable to a surgical tool guide. An output shaft of another of the motors may be coupled to a portion of a ball and socket joint. A corresponding portion of the ball and socket joint may be coupled to a bone mount which may be attached to a bone to mount the first and second motors to bone for performing orthopedic surgical procedures.

Abstract: A system and method for presenting a sales demonstration using a user interface of a pool/spa controller is provided. A first device includes a system controller user interface and sends data to a second device. The second device processes the data to present a media presentation which exhibits systems, associated features, and their ability to be controlled via a controller. A user can control pool and/or spa equipment using the first device, and the user's input can guide a presentation on the second device, which demonstrates corresponding features of such equipment. As such, the natural connections among a user, a controller, and an associated feature are demonstrated in a sales-effective manner. Additionally, the first device can present a user with a simulation of a control system interface to allow for effective sales of products.

Abstract: A system and method for presenting a sales demonstration using a user interface of a pool/spa controller is provided. A first device includes a system controller user interface and sends data to a second device. The second device processes the data to present a media presentation which exhibits systems, associated features, and their ability to be controlled via a controller. A user can control pool and/or spa equipment using the first device, and the user's input can guide a presentation on the second device, which demonstrates corresponding features of such equipment. As such, the natural connections among a user, a controller, and an associated feature are demonstrated in a sales-effective manner. Additionally, the first device can present a user with a simulation of a control system interface to allow for effective sales of products.

Abstract: A system and method for presenting a sales demonstration using a user interface of a pool/spa controller is provided. A first device includes a system controller user interface and sends data to a second device. The second device processes the data to present a media presentation which exhibits systems, associated features, and their ability to be controlled via a controller. A user can control pool and/or spa equipment using the first device, and the user's input can guide a presentation on the second device, which demonstrates corresponding features of such equipment. As such, the natural connections among a user, a controller, and an associated feature are demonstrated in a sales-effective manner. Additionally, the first device can present a user with a simulation of a control system interface to allow for effective sales of products.

Abstract: A system and method for presenting a sales demonstration using a user interface of a pool/spa controller is provided. A first device includes a system controller user interface and sends data to a second device. The second device processes the data to present a media presentation which exhibits systems, associated features, and their ability to be controlled via a controller. A user can control pool and/or spa equipment using the first device, and the user's input can guide a presentation on the second device, which demonstrates corresponding features of such equipment. As such, the natural connections among a user, a controller, and an associated feature are demonstrated in a sales-effective manner. Additionally, the first device can present a user with a simulation of a control system interface to allow for effective sales of products.

Abstract: A system and method for presenting a sales demonstration using a user interface of a pool/spa controller is provided. A first device includes a system controller user interface and sends data to a second device. The second device processes the data to present a media presentation which exhibits systems, associated features, and their ability to be controlled via a controller. A user can control pool and/or spa equipment using the first device, and the user's input can guide a presentation on the second device, which demonstrates corresponding features of such equipment. As such, the natural connections among a user, a controller, and an associated feature are demonstrated in a sales-effective manner. Additionally, the first device can present a user with a simulation of a control system interface to allow for effective sales of products.

Abstract: A system and method for presenting a sales demonstration using a user interface of a pool/spa controller is provided. A first device includes a system controller user interface and sends data to a second device. The second device processes the data to present a media presentation which exhibits systems, associated features, and their ability to be controlled via a controller. A user can control pool and/or spa equipment using the first device, and the user's input can guide a presentation on the second device, which demonstrates corresponding features of such equipment. As such, the natural connections among a user, a controller, and an associated feature are demonstrated in a sales-effective manner. Additionally, the first device can present a user with a simulation of a control system interface to allow for effective sales of products.

Abstract: A system and method for presenting a sales demonstration using a user interface of a pool/spa controller is provided. A first device includes a system controller user interface and sends data to a second device. The second device processes the data to present a media presentation which exhibits systems, associated features, and their ability to be controlled via a controller. A user can control pool and/or spa equipment using the first device, and the user's input can guide a presentation on the second device, which demonstrates corresponding features of such equipment. As such, the natural connections among a user, a controller, and an associated feature are demonstrated in a sales-effective manner. Additionally, the first device can present a user with a simulation of a control system interface to allow for effective sales of products.

Abstract: A method for providing fault-tolerant network communications between a plurality of nodes for an application, including providing a plurality of initial communications pathways over a plurality of networks coupled between the plurality of nodes, receiving a data packet on a sending node from the application, the sending node being one of the plurality of nodes, the data packet being addressed by the application to an address on one of the plurality of nodes, and selecting a first selected pathway for the data packet from among the plurality of initial communications pathways where the first selected pathway is a preferred pathway.

Abstract: A method and system for increasing server cluster availability by requiring at a minimum only one node and a quorum replica set of replica members to form and operate a cluster. Replica members maintain cluster operational data. A cluster operates when one node possesses a majority of replica members, which ensures that any new or surviving cluster includes consistent cluster operational data via at least one replica member from the immediately prior cluster. Arbitration provides exclusive ownership by one node of the replica members, including at cluster formation, and when the owning node fails. Arbitration uses a fast mutual exclusion algorithm and a reservation mechanism to challenge for and defend the exclusive reservation of each member. A quorum replica set algorithm brings members online and offline with data consistency, including updating unreconciled replica members, and ensures consistent read and update operations.

Abstract: A method and system for increasing server cluster availability by requiring at a minimum only one node and a quorum replica set of replica members to form and operate a cluster. Replica members, independent from the nodes, maintain cluster operational data. A cluster operates when one node possesses a majority of replica members, which ensures that any new or surviving cluster includes consistent cluster operational data via at least one replica member from the immediately prior cluster. Arbitration provides exclusive ownership by one node of the replica members, including at cluster formation, and when the owning node fails. Arbitration uses a fast mutual exclusion algorithm and a reservation mechanism to challenge for and defend the exclusive reservation of each member. A quorum replica set algorithm brings members online and offline with data consistency, including updating unreconciled replica members, and ensures consistent read and update operations.

Abstract: A distributed computing system can be operated in a fault tolerant manner using a collection of auxiliary computing devices and more main computing devices than the number of faults the system can tolerate. A quorum of all of the main computing devices can be used. In the event of a failure, an alternative quorum from a selected set of quorums, comprising at least one main computing device and some or all of the auxiliary computing devices, can be used to complete pending operations and to select a new set of quorums. Alternatively, another state machine, comprising at least one main computing device and some or all of the auxiliary computing devices, can select a new quorum comprising the currently operating main computing devices, and the new quorum can then complete pending operations and can continue to select proposals using the proposal number assigned by the other state machine.

Abstract: A distributed computing system can be operated in a fault tolerant manner using a collection of auxiliary computing devices and more main computing devices than the number of faults the system can tolerate. A quorum of all of the main computing devices can be used. In the event of a failure, an alternative quorum from a selected set of quorums, comprising at least one main computing device and some or all of the auxiliary computing devices, can be used to complete pending operations and to select a new set of quorums. Alternatively, another state machine, comprising at least one main computing device and some or all of the auxiliary computing devices, can select a new quorum comprising the currently operating main computing devices, and the new quorum can then complete pending operations and can continue to select proposals using the proposal number assigned by the other state machine.