Abstract: Systems and methods are provided for the control of pool or spa device circuits. A control system load center may control pool or spa device circuits in response to command data received from local or remote client devices. Activating a feature circuit may involve performing an associated logic function. Multiple feature circuits may be assigned to a feature circuit group which, when activated, may activate all feature circuits assigned to the feature group.

Abstract: Systems and methods are provided for the control of pool/spa device circuits. A control system may control such circuits in response to command data received from local or remote client devices. Feature circuits and light groups may be defined via a user interface to include a group of pool/spa device circuits or light circuits, respectively. Activating a feature circuit may involve performing an associated logic function. Multiple feature circuits may be assigned to a feature circuit group which, when activated, may activate all feature circuits assigned to the feature group. The control system may control the performance of freeze protection and automatic cleaner functions, and may control light circuits to synchronized, color-changing light effects. Commands may be issued to the control system and system data may be stored and retrieved from a remote database via web servers, web application programming interface servers, and/or inter-server communication buses.

Abstract: A method and apparatus for writing spiral servo information is provided. In one embodiment, a servo track writer having a digital signal processor is provided. The servo track writer also includes a clock head, which reads a clock track from a disk surface to generate a clock signal that is used to provide interrupt signals to the digital signal processor. A transducer, which writes spiral servo information onto the disk surface, is positioned under control of the digital signal processor based upon the interrupt signals. In one embodiment, a method of writing spiral servo information onto a disk surface using a servo track writer having a digital signal processor is provided. The method includes the steps of reading a clock track written onto the disk surface to generate interrupt signals; providing the interrupt signals to the digital signal processor; and, positioning a transducer over the disk surface under control of the digital signal processor based upon the interrupt signals provided thereto.

Abstract: The invention provides a magnetic fuel enhancement device in which a series of magnets is disposed about the periphery of an activation chamber, and a fuel conduit passes through a magnetic field region defined between the magnets. In the preferred embodiment the fuel conduit passes through the device many times, repeatedly exposing the fuel to magnetic fields within the device and thus increasing the amount of energy imparted to the fuel before combustion, and a concentrating rod attracts the magnetic fields toward the center of the chamber to focus the magnetic fields through the fuel conduit.