Abstract:
A slew rate improved operational amplifier circuit is provided to improve the slew rates of an operational amplifier with minimal sacrifices in power dissipation and other operational amplifier parameters. To improve the slew rates of operational amplifiers, additional current sources are activated when a slewing operation is detected. The detection of slewing operations and the activation of current sources upon detection can be implemented using two comparator circuits—one for a positive slewing operation, and one for a negative slewing operation. A sub-45 nm FinFET implementation of this slew rate improvement concept was implemented and compared against slew rate optimized individual two-stage operational amplifiers. Simulations show that slew rates were significantly improved by the implementation of the comparator circuits (5590 V/μs vs. 273 V/μs), with minimal increases in power dissipation (78 μW vs. 46 μW).
Abstract translation:提供了一种转换速率改进的运算放大器电路,以便以最小的功耗牺牲和其他运算放大器参数来提高运算放大器的转换速率。 为了提高运算放大器的转换速率,当检测到回转操作时,会激活额外的电流源。 检测到的回转操作和电流源的检测可以使用两个比较器电路实现,一个用于正回转操作,另一个用于负回转操作。 实现了这种转换速率改进概念的45纳米FinFET实现,并将其与转换速率优化的单个两级运算放大器进行比较。 模拟显示,通过实施比较器电路(5590 V /μsvs. 273 V /μs),转换速率得到显着提高,功耗增加最小(78μW至46μW)。
Abstract:
An improved system and method (i.e. utility) for registration of medical images is provided. The utility registers a previously obtained volume (s) onto an ultrasound volume during an ultrasound procedure to produce a multimodal image. The multimodal image may be used to guide a medical procedure. In one arrangement, the multimodal image includes MRI information presented in the framework of a TRUS image during a TRUS procedure.
Abstract:
A method for monitoring a structural health of a wind turbine. The method includes transmitting, from a sensor to a controller, at least one monitoring signal indicative of a structural discontinuity, the sensor operatively coupled to a structural component of the wind turbine. A first notification signal is transmitted from the controller to a user computing device upon receiving the monitoring signal.
Abstract:
A system and method allows a network, in response to a cell reselection notice, to serve a wireless, wireless device sufficient data to complete a pending data transfer instead of performing the immediate cell change. Appropriate allocation of radio resources to the wireless device in the current serving cell and before cell change allows reduced packet data transfer latencies for small data sessions, better load balancing and traffic resourcing between cells, appropriate allocation of uplink resources in the new target cell, and enhanced control over network congestion.
Abstract:
Methods and apparatus to monitor a channel to determine neighbor cell information are disclosed. An example method for a first mobile station to determine cell information for a first cell disclosed herein comprises monitoring a channel for messages containing cell information, receiving a first message via the monitored channel and addressed to a second mobile station, the first message including first cell information, and storing the first cell information for a time period after receiving the first message.
Abstract:
A method and a system to determine a product identification of an item for sale in an online publication system is shown and described. For example, the method may be initiated when an input identifying an item is received from a user. An input type (e.g., image, text, audio recording, etc.) may be determined and one or more identification services may be selected based on the input type. At least a portion of the input is transmit to the selected one or more identification services. A product identification is received from each of the one or more identification services. Based on the received product identifications, a recommended product identification is determined. The recommended product identification is transmitted to the user.
Abstract:
Methods and systems for determining a real-time performance model of systems that process multi-class workloads. The methods can include collecting measurement data, selecting a series of prior time windows, processing the measurement data to compute a set of constraints based on the measurement data from the series of prior time windows, augmenting the set of constraints to a measurement model to obtain an augmented measurement model and running a modified extended Kalman filter with the augmented measurement model to obtain a state estimate.
Abstract:
Methods and apparatus for controlling discontinuous reception (DRX) in mobile devices are disclosed. An example method for controlling discontinuous reception includes entering a packet transfer mode, receiving a network message that indicates that the mobile station is to utilize an optimized DRX mode, and entering DRX mode immediately upon leaving packet transfer mode.
Abstract:
A network controller with a bootable Host Bus Adapter, particularly suitable for iSCSI applications is described. In one example, this includes, a host bus interface, a register to the host bus indicating a mass storage device, a network interface, and a boot memory extension including a driver for the mass storage device that binds to a BIOS.
Abstract:
A stabilized pharmaceutical composition of anticancer drug and a solvent like Polyethoxylated castor oil (cremophor) also containing any other suitable solubilizer suitable for human administration like dehydrated alcohol, is disclosed. Compositions prepared using this purified polyethoxylated castor oil enhance the stability of paclitaxel in such compositions.