Abstract: Disclosed are various embodiments of resonant power management of a mobile device. In one embodiment, a mobile device including a power management unit (PMU) including a resonant inverter, a plurality of AC/DC converters, and an AC bus configured to route the AC power from the resonant inverter to the plurality of AC/DC converters. The resonant inverter converts DC power from a power source to AC power that is converted to DC power by the AC/DC converters and supplied to loads of the mobile device. In another embodiment, a method for power management of a mobile device includes monitoring, by a PMU of the mobile device, an operating mode of the mobile device and adjusting an output frequency of a resonant inverter of an AC power distribution network of the PMU in response to a change in the operating mode of the mobile device.

Abstract: A power management system that can include an application processor and a power management unit (PMU). The PMU can generate a regulated output voltage based on control signals generated by a switch control module of the application processor. The control signals can be determined based on a comparison of monitored voltages within the application processor and a generated reference voltage. The reference voltage can be generated based on fed back signals corresponding to the control signals. The application processor and the PMU can be formed utilizing different size manufacturing process technologies. For example, the PMU can be formed utilizing a larger size manufacturing process technology than the application processor.

Abstract: A power management unit accurately measures and controls charging current. The power management unit may be implemented more efficiently than prior designs, leading to cost savings in the implementation of the power management unit as well as in the implementation of the device that incorporates the power management unit. The power management unit incorporates a model of an external charge control device (e.g., a transistor) and uses that model in a way that allows the power management unit to eliminate external device pins and other circuitry.

Abstract: A power management unit accurately measures and controls charging current. The power management unit may be implemented more efficiently than prior designs, leading to cost savings in the implementation of the power management unit as well as in the implementation of the device that incorporates the power management unit. The power management unit incorporates a model of an external charge control device (e.g., a transistor) and uses that model in a way that allows the power management unit to eliminate external device pins and other circuitry.

Abstract: An integrated circuit is disclosed that contains both a PMU and another processing portion, such as a baseband. Because of the limited pins devoted to the PMU, the PMU receives most of its signals through the other processing portion of the integrated circuit. Thus, in order to protect the PMU, the integrated circuit isolates the PMU portion from receiving different signals from the other processing portion until after certain conditions are satisfied. In addition, the integrated circuit includes a GPIO pin bank in the other processing portion that can be freely configured so as to allow for testing of the PMU.

Abstract: A power management system that can include an application processor and a power management unit (PMU). The PMU can generate a regulated output voltage based on control signals generated by a switch control module of the application processor. The control signals can be determined based on a comparison of monitored voltages within the application processor and a generated reference voltage. The reference voltage can be generated based on fed back signals corresponding to the control signals. The application processor and the PMU can be formed utilizing different size manufacturing process technologies. For example, the PMU can be formed utilizing a larger size manufacturing process technology than the application processor.

Abstract: A power management unit accurately measures and controls charging current. The power management unit may be implemented more efficiently than prior designs, leading to cost savings in the implementation of the power management unit as well as in the implementation of the device that incorporates the power management unit. The power management unit incorporates a model of an external charge control device (e.g., a transistor) and uses that model in a way that allows the power management unit to eliminate external device pins and other circuitry.

Abstract: Disclosed are various embodiments of resonant power management of a mobile device. In one embodiment, a mobile device including a power management unit (PMU) including a resonant inverter, a plurality of AC/DC converters, and an AC bus configured to route the AC power from the resonant inverter to the plurality of AC/DC converters. The resonant inverter converts DC power from a power source to AC power that is converted to DC power by the AC/DC converters and supplied to loads of the mobile device. In another embodiment, a method for power management of a mobile device includes monitoring, by a PMU of the mobile device, an operating mode of the mobile device and adjusting an output frequency of a resonant inverter of an AC power distribution network of the PMU in response to a change in the operating mode of the mobile device.

Abstract: An integrated circuit is disclosed that contains both a PMU and another processing portion, such as a baseband. Because of the limited pins devoted to the PMU, the PMU receives most of its signals through the other processing portion of the integrated circuit, Thus, in order to protect the PMU, the integrated circuit isolates the PMU portion from receiving different signals from the other processing portion until after certain conditions are satisfied. In addition, the integrated circuit includes a GPIO pin bank in the other processing portion that can be freely configured so as to allow for testing of the PMU.

Abstract: A process for preparing a surfactant, useful for dispersing tackifier resins in aqueous media, comprises reacting an ?,?-unsaturated carboxylic acid or anhydride, or an ester thereof, with a terpene- or hydrocarbon-based resin to form an adduct, then reacting the adduct with a polyalkylene polyol to yield the surfactant. In a related embodiment, the surfactant is subsequently functionalized. Also disclosed are surfactants prepared using a disclosed process; compositions comprising a disclosed surfactant and a tackifier resin; aqueous dispersions comprising a disclosed surfactant; tackifier resin and water; adhesive compositions comprising a disclosed aqueous dispersion and a polymer latex; and pressure sensitive adhesive overlays prepared using a disclosed adhesive composition.

Abstract: In accordance with a preferred embodiment of the instant invention, there is provided a method and apparatus for enhancing the value of prerecorded works such as movies and music, as well as computer games, by randomly choosing alternative content segments at different points within the work, thereby potentially offering the user a different experience each time the work is played. This invention is suitable for use with specially prepared music, movies, videos, computer games and the like, wherein a plurality of interchangeable parallel or sequential content segments are specified. At each time point where such content segments are specified, the instant method selects randomly from them for presentation to the user.

Abstract: The invention provides a system and method for filtering a video synchronization signal sent from a remote computer. The method can include the operation of receiving a stream of at least n sync signals from the remote computer and storing the most recently received n sync signals in an array. A further operation can be comparing an n+1 sync signal with each of the n sync signals in the array to form a comparison for each of the n sync signals in the array. Another operation is replacing the oldest of the n sync signals in the array with the n+1 sync signal. A further operation is using the n+1 sync signal to synchronize at least one graphics processing card in each of a plurality of graphics processing computers if the comparisons of the n sync signals in the array are greater on the average than a preset threshold.

Abstract: The invention provides a system and method for filtering a video synchronization signal sent from a remote computer. The method can include the operation of receiving a stream of at least n sync signals from the remote computer and storing the most recently received n sync signals in an array. A further operation can be comparing an n+1 sync signal with each of the n sync signals in the array to form a comparison for each of the n sync signals in the array. Another operation is replacing the oldest of the n sync signals in the array with the n+1 sync signal. A further operation is using the n+1 sync signal to synchronize at least one graphics processing card in each of a plurality of graphics processing computers if the comparisons of the n sync signals in the array are greater on the average than a preset threshold.

Abstract: A process for preparing a surfactant, useful for dispersing tackifier resins in aqueous media, comprises reacting an ?,?-unsaturated carboxylic acid or anhydride, or an ester thereof, with a terpene- or hydrocarbon-based resin to form an adduct, then reacting the adduct with a polyalkylene polyol to yield the surfactant. In a related embodiment, the surfactant is subsequently functionalized. Also disclosed are surfactants prepared using a disclosed process; compositions comprising a disclosed surfactant and a tackifier resin; aqueous dispersions comprising a disclosed surfactant; tackifier resin and water; adhesive compositions comprising a disclosed aqueous dispersion and a polymer latex; and pressure sensitive adhesive overlays prepared using a disclosed adhesive composition.

Abstract: In accordance with a preferred embodiment of the instant invention, there is provided a method and apparatus for enhancing the value of prerecorded works such as movies and music, as well as computer games, by randomly choosing alternative content segments at different points within the work, thereby potentially offering the user a different experience each time the work is played. This invention is suitable for use with specially prepared music, movies, videos, computer games and the like, wherein a plurality of interchangeable parallel or sequential content segments are specified. At each time point where such content segments are specified, the instant method selects randomly from them for presentation to the user.

Abstract: A wideband buffer is described which has improved slew rate over prior buffers. In one embodiment the buffer includes (a) complementary buffer subcircuit, (b) first and second current mirrors to bias the buffer subcircuit in a cross coupled manner, and (c) means of setting a stable quiescent operating point for the circuit.