501 results about "Rate change" patented technology

A method for proposing at least one transmission rate change including calculating a plurality of latency values, computing at least one derivative-based proposed change from the plurality of latency values, and proposing a rate change selected from the at least one derivative-based proposed change. Also provided is a system including a rate controller controlling the transmission rate of data between two stations over a network and a rate reporter in communication with the rate controller.

A WCDMA system includes a Base Station (BS) transmitter, or forward transmitter and a pilot channel that transmits control signals between the BS and a Mobile Station (MS) to reconfigure their transmitter/receiver. Reconfiguration is performed according to the prediction of the channel attenuation and the threshold set at the BS or MS based on its channel power probability density function separated into three distinct equal probable regions. In one embodiment, Seamless Rate Change (SRC)/Transmitter Power Control (TPC) logic uses the predicted channel attenuation to signal both the transmitter and the receiver in a channel to reconfigure their transmit power level according to the power density function (pdf) of the channel power and threshold level. A transmission rate is reduced when the power level is below the threshold and increased when the channel power is above threshold. The pilot channel is used to signal the mobile station and the base station.

Medical devices, methods and systems for treating tissue are provided. An exemplary system comprises a fluid from a fluid source, a surgical device which provides energy and the fluid to the tissue and a control mechanism which changes a flow rate of fluid provided from the surgical device and changes a rate of energy provided from the surgical device. The fluid flow rate changes between at least two non-zero flow rates and the energy rate changes between at least two non-zero energy rates. An exemplary method comprises providing a fluid from a fluid source, providing a surgical device which provides energy and the fluid to the tissue, and changing a flow rate of fluid provided from the surgical device with a change in a rate of energy provided from the surgical device. Exemplary devices comprise a tip portion configured to provide energy and a fluid to a tissue.

Methods and apparatus for maintaining the maximum achievable data rate on a DSL line, up to and including a rate to which a user subscribes is described. Performance monitoring is conducted on the DSL line on an ongoing basis to determine noise margins in each direction. Each noise margin is compared against pre-determined decreasing/increasing thresholds to determine whether the line characteristics dictate a data rate change without loss of synchronization. The invention supports dynamic provisioning changes including application driven service level change requests, e.g., new bandwidth-on demand services. In some embodiments, a combination of existing and new embedded operations channel (EOC) messages are used to implement the modem data rate changes. New EOC messages may be implemented using some of the reserved and/or vendor proprietary Opcodes currently permitted. Modem assigned data rate changes are implemented without a disruption of service, e.g., without the need for re-initialization and/or re-synchronization.

The present invention discloses a deep learning method-based short-term traffic flow prediction method. The influence of the traffic flow rate change of the neighbor points of a prediction point, the time characteristic of the prediction point and the influence of the periodic characteristic of the prediction point on the traffic flow rate of the prediction point are considered simultaneously. According to the deep learning method-based short-term traffic flow prediction method of the invention, a convolutional neural network and a long and short-term memory (LSTM) recurrent neural network are combined to construct a Conv-LSTM deep neural network model; a two-way LSTM model is used to analyze the traffic flow historical data of the point and extract the periodic characteristic of the point; and a traffic flow trend and a periodic characteristic which are obtained through analysis are fused, so that the prediction of traffic flow can be realized. With the method of the invention adopted, the defect of the incapability of an existing method to make full use of time and space characteristics can be eliminated, the time and space characteristics of the traffic flow are fully extracted, and the periodic characteristic of the data of the traffic flow is fused with the time and space characteristics, and therefore, the accuracy of short-term traffic flow prediction results can be improved.

The invention provides an entrance ring road self-adaptive control system and a method, which belong to the technical field of intelligent traffic signal system control. The system of the invention comprises traffic detection equipment, traffic control equipment and a communication module, wherein the traffic detection equipment comprises a queuing detector, an upstream detector, a downstream detector and an abouchement detector, and is used for detecting and collection traffic flow data, the traffic control equipment comprises a ring road controller and an entrance ring road signal lamp, and is responsible for controlling the entrance ring road traffic flow rate, and the communication module is used for communication. The system and the method of the invention can response to the traffic flow rate change on a high-speed road, and can automatically select different control methods according to the vehicle flow rate at major trunk roads and at entrance ring road parts. In addition, the hardware of the ring road controller adopted by the invention is simple and is easy to be realized, the development cost is low, and the application range is wide.

One or more embodiments may include a method for selectively charging a vehicle. The method may include receiving at one or more computers one or more periods for charging a vehicle. The vehicle charging periods may be stored in memory. Further, pricing rates for charging the vehicle during the one or more vehicle charging periods may be received at the computer(s). Based on the one or more pricing rates and the vehicle charging periods, one or more low cost charging periods may be determined. The one or more low cost charging periods may be automatically adjusted if the one or more pricing rates change. The vehicle may be charged during at least part of the one or more low cost charging periods.

A system and method for controlling vehicular traffic flow is disclosed, which creates a communication system between vehicles that allows the vehicles to share their respective velocities and acceleration or deceleration rates. Thus, each vehicle within the system can respond immediately to any acceleration or deceleration rate changes of the surrounding vehicles (e.g., the vehicle directly in front, directly in back, and in the adjacent lane). Essentially, the system functions similar to a wireless vehicular train, with a queue of cars linked together by a stiff, wireless communications “chain”. Notably, the term “vehicle” is not limited only to land-based vehicles (e.g., motor vehicles), and the system can include airborne vehicles (e.g., multiple aircraft flying in close formation, military aircraft flying in drone formation, etc.). For example, a system for controlling vehicular traffic flow is disclosed, which includes in each vehicle of a plurality of vehicles, a wireless or infrared (IR) modem for inter-vehicular communications, a range finder for determining the distance and closing rate between vehicles, a processing unit for retrieving vehicular operational data (e.g., velocity, angular velocity, acceleration rate, deceleration rate, braking pressure, weight, pointing vector, etc.) and executing flow control system software instructions, and a vehicular flow control communications protocol that enables the communication of various flow control parameters between vehicles via the wireless or IR modem. Thus, each vehicle in the system “knows” what the surrounding vehicles are doing and can respond immediately to changes in the traffic flow. As such, the system minimizes the distribution of vehicles' velocities in the queue, and increases traffic throughput and safety as a result.

A client device presents streaming media and includes a stream manager for controlling streams, a request accelerator for making network requests for content, a source component coupled to the stream manager and the request accelerator for determining which requests to make, a network connection, and a media player. A process for rate estimation is provided that will react quickly to reception rate changes. The rate estimator can use an adaptive windowed average and take into account the video buffer level and the change in video buffer level in a way so to guarantee that the rate adjusts fast enough if there is a need, while keeping the windowing width large (and thus the measurement variance) large. A guarantee might be that when a rate drop or rise happens, the estimator adjusts its estimate within a time proportional to a buffer drain rate or buffer fill level.

A water leakage monitoring system including a water leakage position estimator which includes a periodic data acquiring unit for fetching predetermined-period flow rate pressure data stored in a monitoring device, and for fetching a signal related to a flow rate change and pressure changes expecting a water leakage reaction time calculating unit for calculating a pressure reaction time lag between two pressure changes, a pressure propagation velocity estimating unit for estimating a pressure propagation velocity using the pressure reaction time lag and a distance between two pressure gauges located in a water distribution block stored in a pipeline network map data, and a flow rate change position estimating unit for receiving a signal related to the flow rate change, and estimating a flow rate change position using pressure propagation velocity and a flow meter and pressure gauge locating positions of the pipeline network map data.

A system and method are responsive to actual or anticipated weather changes that are likely to have an adverse effect on roadway driving conditions in a given vehicle use area. Based on the anticipated severity of the weather condition, transport-related road and/or parking tolls and fees are increased in order to discourage unnecessary vehicle travel. Using a communication system such as a transponder network, changes in the tolls and fees can be transmitted to toll collection agencies, public parking facilities and other governmental and private enterprises responsible for the collection of vehicle transport fees. Rate change information and details of weather changes can also be transmitted to vehicles likely to be affected by the adverse condition and the consequent change in these fees.

The present invention relates generally to the control of fluid flow rate and direction on a microfluidic device. In particular, the present invention provides an integrated valveless microfluidic device, where directional fluid control is controlled using off-chip remote valve switching and fluid flow rate changes are controlled using on-chip flow-rate changing fluid reservoirs. The present invention provides methods and systems for directional fluid control and control of fluid flow rate in an integrated microfluidic device which enables processes with different flow rates to be performed on one device without the need of on-chip valves.

A wireless line sharing network system enabling the charge of fees according to the use of a wireless communication network as well as reduction in capital invested by a communication carrier. A user terminal that subscribes to a communication carrier accesses a corresponding communication carrier network at a licensed radio frequency through a wireless base station (BS) and a control station (10). In response to a call connection request, a call acceptance controller (101) accepts the call and reserves bandwidth based on a radio bandwidth allocation pattern defined by contract and current use conditions. A bandwidth determination section (107) determines bandwidth for the call connection request using the call connection request, a call connection acknowledgement and a bandwidth table (106). A rate change controller (103) controls bandwidths for user terminals so that the currently used bandwidth of each communication carrier are kept within a predetermined range. An accounting controller (110) charges each communication carrier according to the radio bandwidth lease agreement.

A subcutaneous cardiac stimulation system verifies accelerated arrhythmia detection before delivering accelerated arrhythmia therapy to the heart. The stimulation system includes a verification circuit that verifies detection of the accelerated arrhythmia with each of first and second sense channels utilizing first and second electrode configurations. The therapy circuit delivers the stimulation therapy to the heart if the accelerated arrhythmia detection is verified with each of the first and second electrode configurations. The system also compensates for transient rate changes during the detection of the accelerated arrhythmia.

In a motor vehicle driveline having an automatic transmission driveably connected to a transfer case whose output is continually connected to a first output, a clutch, selectively engaged in response to a control signal, driveably connects a second output to the first output. A digital computer continually monitors the occurrence of a change of clutch slip, input torque and a torque rate change to control the torque transmitted by the clutch to the second output. The control causes the clutch to transmit torque to the second output having a constant fraction of the input clutch torque and another portion that is proportional to the clutch slip. This result simulates the torque slip characteristics produced by transfer case having both a center differential mechanism and a viscous clutch.

In controlling power supply time, a variation in the fuel injection quantity caused by a variation in the fuel injection rate at the in-cylinder pressure of the engine (detected or estimated value in the running state of the internal combustion engine) relative to the fuel injection rate at a reference in-cylinder pressure (under the condition of an injector characteristic measuring benchmark test), and in addition, a variation in the fuel injection start time is corrected. In the calculation of the variation in the fuel injection quantity, a fuel injection rate changing behavior model in which changing behavior of the fuel injection rate is modeled as a trapezoid is used to calculate the areas of Δq1 and Δq2. The variation in the fuel injection start time Δτd is calculated based on the rail pressure and the variation in the in-cylinder pressure. In this way, there is provided a technology for controlling the fuel injection quantity that changes with a change in the in-cylinder pressure with improved accuracy.

A tailored response cascaded integrator comb digital filter is disclosed which has a cascaded integrator structure, a cascaded comb structure, a first rate change component, a second rate change component and can additionally include a resonator. The improved structure achieves greater bandwidth without requiring higher sampling rates. In an additional embodiment, a pre-decimated cascaded integrator filter section for a cascaded integrator comb digital filter is disclosed as having a data rate change component and a first integrator structure receiving data at the rate established by the data rate change component and modifying the received data. The pre-decimated filter section can also include a second integration structure. The pre-decimate structure outputs data equivalent to data that would be output by a post-decimated cascaded integrator structure having an equal number of cascaded integrator stages.