Abstract: A wireless communication apparatus that comprises a wireless device and a wireless headset is described. Additionally, a method for controlling the operations of a wireless communications apparatus is also described. The wireless device is configured to communicate with at least one remote base station using at least one communication standard. The wireless device is configured to perform at least one local application by locally processing computer instructions. The wireless headset is communicatively coupled to the wireless device and comprises a headset communications module, a headset selection means, and a headset display. The headset wireless communications module is configured to wirelessly communicate with the wireless device. The headset scrolling wheel is configured to control the local application on the wireless device from the headset. The headset display is configured to present a synchronized output that is synchronized with the local application that is executed on the wireless device.

Abstract: A vacuum uses reverse pulses from the vacuum motor to clean the filter associated therewith. Vacuum filters may be cleaned quickly and efficiently without expelling collected debris from the vacuum. Vacuums with two motors may be operated from 220 or 110 volt sources without a loss of power.

Abstract: A user input device for a wireless handset and a method for receiving user input on a wireless handset is described. The user input device comprises a trackpad and a selection button. The wireless handset has a display that presents a graphical user interface. The graphical user interface is updated in accordance with input received at the user input device.

Abstract: A DC high power distribution system provides power to a load in parallel with one or more storage capacitors. The system includes a hot-swap controller and an array of parallel-connected transistors connected in series between a DC source and the capacitors/load. A power contactor is connected in parallel to the transistor array, both of which are connected to control outputs of the controller. The controller monitors various circuit conditions of interest, such as input over-voltage, input under-voltage, and over-current. If the circuit conditions meet designated parameters, the controller activates the transistors for charging the capacitors, for limiting inrush current. After charging, the controller activates the power contactor for shunting the transistors and carrying the 150+ ampere current during ongoing operation. If any of the monitored circuit conditions fail to meet designated parameters, the controller halts operation of the circuit by deactivating the power contactor and/or transistors.

Abstract: A balanced portable device that includes a rectangular housing, a rectangular display, and a split keyboard is described. The rectangular housing has a top face and a bottom face and the rectangular display is located on the top face. The split keyboard is configured to receive input that is shown on the rectangular display. The split keyboard includes a first retractable keyboard on a first end of the bottom face and the first keyboard includes a first battery. The split keyboard also includes a second retractable keyboard on an opposing end of the bottom face and the second keyboard also includes a second battery. The first retractable keyboard and the second retractable keyboard substantially weigh the same.

Abstract: A projection system has a housing and a projector removably, pivotally attached to the housing. The projector can pivot relative to the housing between a first position, where a light outlet of the projector is covered by the housing, and a second position, where the light outlet of the projector is exposed.

Abstract: A multi-channel remote keyless entry (RKE) transponder having dynamically re-configurable input channel selection, channel disable, settable sensitivity for each channel, wake-up filter timing parameters, automatic gain control hold, internal tuning capacitor selection for each channel's antenna, minimum modulation depth requirement for input signal and bi-directional talk-back. Programmable minimum modulation depth requirement reduces false wake-up of the RKE transponder. An antenna for each channel of the RKE transponder may be tuned with internal tuning capacitors for improved range and receiver sensitivity. The internal tuning capacitor parameters may be stored in a configuration register. Gain of the channel may be fixed while the antenna is tuned. The antennas may be de-queued for talk-back to a base station for low frequency bi-directional communications. An external control device may dynamically read from and write to the configuration registers via a serial communications interface.

Abstract: A DC high power distribution system provides power to a load in parallel with one or more storage capacitors. The system includes a hot-swap controller and an array of parallel-connected transistors connected in series between a DC source and the capacitors/load. A power contactor is connected in parallel to the transistor array, both of which are connected to control outputs of the controller. The controller monitors various circuit conditions of interest, such as input over-voltage, input under-voltage, and over-current. If the circuit conditions meet designated parameters, the controller activates the transistors for charging the capacitors, for limiting inrush current. After charging, the controller activates the power contactor for shunting the transistors and carrying the 150+ ampere current during ongoing operation. If any of the monitored circuit conditions fail to meet designated parameters, the controller halts operation of the circuit by deactivating the power contactor and/or transistors.

Abstract: A cable sealing device (10) includes a member (14) includes an elastomeric material and adapted to be fitted into a cable receiving aperture. The member includes a first wall (16) and a second wall (18) spaced apart from the first wall to partially define a cavity (20) between the walls. Each wall includes a cable receiving slot (e.g., 22, 24) formed in the wall. Each wall is deformable away from the respective slot to accommodate a respective cable portion (e.g., 26, 28) extended through the slot so that the wall is biased around the cable portion to minimize any opening around the cable portion passing through the slot. The slots in the respective walls cooperate to provide a redundant seal around a cable portion (30) passing through the member.

Abstract: A projection system has a housing and a projector removably, pivotally attached to the housing. The projector can pivot relative to the housing between a first position, where a light outlet of the projector is covered by the housing, and a second position, where the light outlet of the projector is exposed.

Abstract: A lens cover that may be secured to a case of a projector is herein disclosed. The lens cover has incorporated therein a lens that may be aligned with a lens of the projector to modify the throw ratio of the projector lens.

Abstract: A system for cutting and cleaning material to be cut. The system is particularly effective for hard materials which produce heavy particles. The system is ideal for cutting green concrete. This invention provides a two-piece device for locating vacuum a hose connection for a circular saw used in cutting concrete. The hose connection is contained in the low, rear part of the lower piece. The invention also proves a vacuum cleaner which passes debris-laden air through water which collects the debris. Water-laden air rising from the water is passed around a first water barrier connected to a float and a second water barrier connected to the top of the container in order to remove entrapped water droplets which may contain debris.