794 results about "Transition time" patented technology

An elimination-absorber monitoring system addresses diaper-monitoring problems with a unique, low cost, multi-layer disposable sensor structure that absorbs small volumes of urine, yet allows most urine volume to flow unimpeded through it, and into the diaper below. When connected with a reusable, miniature monitor/indicator unit, the sensor presents a clear and on-going change of measurement condition upon experiencing a rapid influx into the diaper of a significant volume of urine, and/or upon a significant reduction in the available absorbency of the diaper's top surface. The sensor additionally provides recessed, protected elements for similarly presenting a clear and on-going change in measurement condition upon experiencing the presence of fecal matter. Further provided is the monitor unit employing narrow, widely-spaced, fast rise-time, fast transition-time pulses for conductivity measurement and alarm activation. The monitor and sensor are interconnected and attached to a diaper by particularly effective and unique means, and the monitor is equipped with a highly intuitive and convenient control interface, as well as improved assemblies for the transmission of audible and visual alarm indications. Also described is a convenient test-strip device which, when connected to the monitor/alarm unit of the system, can selectively simulate either a soiled or unsoiled elimination-absorber/sensor for test, caregiver-training or demonstration purposes.

Methods and apparatuses for circuit design to reduce power usage, such as reducing temperature dependent power usage, and/or to improve timing, such as reducing temperature dependent delay or transition time. At least one embodiment of the present invention reduces the power dissipation and improves the timing of an integrated circuit to optimize the design. A thermal analysis is used to determine the temperature dependent power dissipation of a circuit and the temperature distribution of the circuit resulting from dissipating the heat created by the temperature dependent power dissipation. Then, the components of the design are selectively transformed to reduce the power dissipation and to improve timing based on the temperature solution. The transformation may include placement changes and netlist changes, such as the change of transistor threshold voltages for cells or for blocks of the circuit chip.

An elimination-absorber monitoring system addresses diaper-monitoring problems with a unique, low cost, multi-layer disposable sensor structure that absorbs small volumes of urine, yet allows most urine volume to flow unimpeded through it, and into the diaper below. When connected with a reusable, miniature monitor/indicator unit, the sensor presents a clear and on-going change of measurement condition upon experiencing a rapid influx into the diaper of a significant volume of urine, and/or upon a significant reduction in the available absorbency of the diaper's top surface. The sensor additionally provides recessed, protected elements for similarly presenting a clear and on-going change in measurement condition upon experiencing the presence of fecal matter. Further provided is the monitor unit employing narrow, widely-spaced, fast rise-time, fast transition-time pulses for conductivity measurement and alarm activation. The monitor and sensor are interconnected and attached to a diaper by particularly effective and unique means, and the monitor is equipped with a highly intuitive and convenient control interface, as well as improved assemblies for the transmission of audible and visual alarm indications. Also described is a convenient test-strip device which, when connected to the monitor/alarm unit of the system, can selectively simulate either a soiled or unsoiled elimination-absorber/sensor for test, caregiver-training or demonstration purposes.

The invention may be embodied in a method for operating a disk drive in a mobile device to optimize power usage. The mobile device may be a hand held computing device such as a personal digital assistant (PDA) or a mobile terminal such as a cellular telephone. Immediately after responding to a disk access command, the disk drive is in first operating mode that consumes a relatively high level of power and may transition to a second operating mode that consumes a relatively low level of power. A transition from the second operating mode to the first operating mode consumes a transition quantity of power. A predictive technique tracks a user's usage pattern and adapts an operating mode transition time based on the usage pattern.

A multivariable feedback control approach to actively dampen magnitude of jerks in a powertrain system using multiple torque-control devices is offered. To manage jerks, a desired axle torque is restricted when a torque reversal occurs. When the vehicle operator or the system executes a command that requires change in direction of torque, the desired axle torque is limited to a low level until the lash estimate has changed accordingly. During this transition time, active damping controls driveline component speeds so that the effect of lash take-up is minimized. After lash take-up occurs, the desired axle torque proceeds without restriction. The invention includes determining a desired axle torque, an output speed of the transmission, and an output speed of a driven wheel of the driveline. One of the devices is controlled based upon a time-rate change in the desired axle torque.

A vehicle mode controller, a driving mode collecting means, and a plurality of subsystem controllers including an engine management system, a transmission controller, a steering controller, a brakes controller and a suspension controller, provide an improved system and method of operating a vehicle control system in a host vehicle in a manner suitable for a respective driving surface in a plurality of different off-road surfaces and terrains such as might be encountered when driving off-road. An improved method is provided for controlling a vehicle control system by avoiding unplanned combinations of subsystem configuration modes and minimizing the transition time when changing between subsystem configuration modes.

A communications system can provide methods of dynamically interleaving streams, including methods for dynamically introducing greater amounts of interleaving as a stream is transmitted independently of any source block structure to spread out losses or errors in the channel over a much larger period of time within the original stream than if interleaving were not introduced, provide superior protection against packet loss or packet corruption when used with FEC coding, provide superior protection against network jitter, and allow content zapping time and the content transition time to be reduced to a minimum and minimal content transition times. Streams may be partitioned into sub-streams, delivering the sub-streams to receivers along different paths through a network and receiving concurrently different sub-streams at a receiver sent from potentially different servers. When used in conjunction with FEC encoding, the methods include delivering portions of an encoding of each source block from potentially different servers.

A robotic data storage library is disclosed that is capable of operating with at least one data storage element and with the ability to reduce the transition time to reach an operational state after a transition of the library from a power-off state to a power-on state. Methods for reducing the transition time to reach an operational state of a robotic data storage library after a transition of the library from a power-off state to a power-on state are also disclosed. One embodiment of a robotic data storage library with the ability to reduce the transition time to reach an operational state after a transition of the library from a power-off state to a power-on state comprises: (1) a plurality of storage locations, each capable of holding at least one data storage element; (2) a data transfer interface for receiving a data storage element and establishing a communication path with a data storage element so that data can be transferred between the data storage element and a host computer; (3) a transport unit for moving a data storage element between one of the plurality of storage locations and the data transfer interface; (4) a nonvolatile memory for storing an inventory of locations of the robotic data storage library; and (5) a controller for causing an audit to be performed to create an inventory, causing the inventory to be stored in the nonvolatile memory prior to a transition of the robotic data storage library from a power-off state to a power-on state, and causing the inventory to be transmitted to a host computer after the transition of the robotic data storage library from a power-off state to a power-on state.

A modified version of a switching/routing device commonly known as a crossbar switch which is optimized to switch and reroute very high speed synchronous data communication signals without interruptions and/or excessive transition time shifts.

A jitter measurement technique utilizing a high-bandwidth undersampling voltage measurement instrument is presented. A trigger is derived from the a signal having a repetitive signal pattern. The signal is compared with a threshold at a plurality of times relative to the trigger during multiple repetitions of the signal pattern to produce measurement samples indicative of signal level relative to the threshold. The measurement samples are used to determine the probability of signal edge states as a function of time for the multiple repetitions. The probability of signal edge states are used to determine an edge probability density as a function of time. A histogram of signal state transition times can be prepared from the edge probability density. Mean deviation of edge transitions of the signal can be estimates, and standard deviation of edge transitions of the signal can be estimated to give the root-mean-square (rms) jitter of the signal.

Provided is a method of controlling a hybrid switch comprising a first individually controllable semiconductor switch operably coupled in parallel to a second individually controllable semiconductor switch. The first semiconductor switch has a faster switching speed and lower power-processing capability than the second semiconductor switch. A first reference value V_1REF for a first default turn-on transition time interval ΔT₁ and a second reference value V_2REF for a second default turn-off transition time interval ΔT₂ are accessed for the controllable hybrid switch, which is enabled and controlled so that it operates in accordance with V_1REF and V_2REF. The duration of the default ΔT₁ and ΔT₂ used to control operation of the controllable hybrid switch is dynamically adjusted to compensate for at least one of variations in a current to a load operably coupled to the controllable hybrid switch and environmental conditions at the controllable hybrid switch.

This is a method of quickly computing the power dissipated by a digital circuit using information available at the gate library level. It estimates the short-circuit power by modeling the energy dissipated by the cell per input transition as a function of the transition time or edge rate, and multiplying that value by the number of transitions per second for that input.

Significantly faster state transitioning time between the optimal optical density for viewing 2D Movies as 3D movies through Continuous Adjustable 3Deeps Filter Spectacles can be achieved by using multiple layers (multi-layer) of electronically controlled variable tint materials to fabricate the right and left lenses of the 3Deeps spectacles. The use of multi-layered lenses may result in as much as a 50% decrease in transition time between states. The invention also relates to Multi-Use Electronically Controlled Continuous Adjustable 3Deeps Filter Spectacles that house within a single spectacle frame several layers of optoelectronic material in which each layer of electronically controlled relates to a different method of viewing.

A high speed MOSFET output driver is disclosed that includes a voltage level shifter stage operable to transition an input signal at a first voltage level to an output signal at a second voltage level, an output stage operable to drive high voltage output load, and a hot inverter, biased between the second voltage level and the bias voltage such that the voltage gain of the output signal is increased and at the same time the minimum voltage level of the output signal introduced to the output stage is decreased, improving the control and the transition time of the output signal and allowing all components of the high speed MOSFET output driver of the present invention to be fabricated using a single thin gate oxide process.

The invention relates to deep-water low-temperature low-density early-strength cementing slurry for well cementation in petroleum drilling engineering, which contains 100 parts of low-temperature early-strength cement, 10 to 30 parts of low-temperature reinforcing material, 10 to 80 parts of low-density light-weight material, 0.5 to 4 parts of drag reducer, 2.5 to 8 parts of fluid loss additive, 0.1 to 5 parts of retarder, 0.15 to 1.2 parts of defoamer, 2.5 to 8 parts of early strength agent and 57 to 95 parts of water, and slurry with the density of 1.2g/cm3 to 1.7g/cm3 can be prepared. The slurry system at least has the following advantages that: the maximum early strength (24 hours) can reach 14.7MPa, the long-term strength stability is good, the static gelling transition time is short, and the system is stable. The invention provides technical support for the quality of deep-water well cementation.