Abstract:
The present disclosure relates to using windowing to reduce the bandwidth of an amplitude modulation (AM) power supply input signal (PSIS), which is fed to an AM power supply to provide envelope power to an RF power amplifier stage via an AM power supply output signal. By reducing the bandwidth, noise levels from the AM power supply may be reduced. However, although the bandwidth of the AM PSIS is reduced, the AM power supply output signal may track the AM of the RF power amplifier stage closely enough to meet linearity requirements and to provide high efficiency. The windowing may be based on dividing a stream of AM input samples into a stream of input windows, from which a stream of output windows is created to provide a stream of windowed AM input samples that are used to provide a windowed AM PSIS to the AM power supply.
Abstract:
Embodiments of the present invention include amplitude-modulated or polar-modulated radio frequency (RF) power amplifier circuitry, in which an envelope power supply input to an RF power amplifier is powered by a pre-distorted amplitude modulation (AM) power supply. The pre-distorted AM power supply receives an AM signal, which is then pre-distorted and amplified to provide an AM power supply signal to the RF power amplifier. The pre-distortion of the AM signal is used to improve the linearity, the efficiency, or both, of the RF power amplifier. The pre-distortion provides a feed-forward system, which may allow use of a reduced bandwidth pre-distorted AM signal to an AM power supply and a reduced bandwidth AM power supply, which may increase efficiency.
Abstract:
A cane with a base having at least one wheel and an aperture, a support shaft having a user adjustable length and a first end connected to the base, a brake disposed within the aperture having a user adjustable length and at least one grip connected to the support shaft and the grip being operably engaged with the brake.
Abstract:
A method for managing a GRID network. The method includes performing trend analysis of a job type repeatedly processed by the GRID network to anticipate a future load on the GRID network associated with the job type. The job type is associated with a service level agreement (SLA). At least one internal performance metric of the GRID network is measured to monitor current GRID network status. The future load that is anticipated is compared with the at least one performance metric to predict future satisfaction of the SLA.
Abstract:
A method and apparatus are provided for dynamically routing a plurality of simultaneous point-to-point communications through an array of repeating transceivers. Each repeating transceiver may simultaneously act as each of a transmitter of origin for one communication, a final receiver for a second communication, and a repeater for a plurality of other communications. When acting as a repeater, each transceiver applies programmed delays to information before re-transmitting, and these delays are programmed so as to route a communication through the array of transceivers along a designed path along which multiple re-transmissions from local repeating transceivers are received, aligned in time for constructive reinforcement, and retransmitted after dynamically programmable time delays.
Abstract:
A system for secure information storage and delivery includes a vault repository that includes a secure vault associated with a user, wherein the secure vault is associated with a service level including at least one of a data type or a data size limit associated with the secure vault, the secure vault being adapted to receive and at least one data entry and securely store the at least one data entry if the at least one of a size or a type of the at least one data entry is consistent with the service level. A mobile vault server coupled to the vault repository creates a mobile vault on a mobile device based on the secure vault and is capable of authenticating the mobile device based on user authentication information. The mobile vault server includes a mobile device handler that communicates with the mobile device. A synchronization utility determines whether the at least one data entry on the secure vault is transferable to or storable on the mobile vault based on at least one of the size or the type of the at least one data entry and transfers the at least one data entry from the secure vault to a corresponding data entry on the mobile vault if the at least one data entry on the secure vault is determined to be transferable to or storable on the mobile vault.
Abstract:
The present invention is related to a paperboard product having a basis weight in a range of 100 to 350 pounds per 3,000 square feet. The paperboard comprises at least one coated surface suitable for printing. The at least one coated surface comprising cellulosic fibers and from about 0.05 to about 0.5 wt. % dry basis expanded synthetic polymer microspheres based on total weight of the of cellulosic fiber dispersed thereof. The coated surface has a Parker smoothness less than about 2.0 and a Hagerty/Sheffield smoothness not less than about 20 Sheffield units.
Abstract:
A development station in an electrostatographic imaging machine supports longer operational life without undue variation in the mass of developer on roll parameter. The development station includes a developer housing, for retaining a quantity of developer having semi-conductive carrier particles and toner particles, a first magnetic roll having a stationary core with at least one magnet and a sleeve having longitudinal grooves that rotates about the stationary core of the first magnetic roll to transport developer to a photoreceptor, a second magnetic roll having a stationary core with at least one magnet and a sleeve having longitudinal grooves that rotates about the stationary core of the second magnetic roll to receive developer from the first magnetic roll and present the developer to the photoreceptor, the sleeve of the second magnetic roll being fabricated from a material that is softer than the sleeve of the first magnetic roll.
Abstract:
A method is disclosed to debug a computer program. The method provides a computer program comprising source code, and a listing of that source code. The method further provides a computing device comprising a data storage medium, and stores the computer program in that data storage medium. The method then runs the computer program, and subsequently detects an error condition. The method creates and saves to the data storage medium a dump file comprising (N) save areas. Using information abstracted from the dump file and the source code listing, the method reproduces the source code execution at the time the error condition was detected.
Abstract:
A bridge is disclosed having a security engine. The bridge permit cryptographic services to be offloaded from a central processing unit to the bridge.