238results about How to "Maintain speed" patented technology

A wavelength division multiplexed optical network has a restoration process to re-route one or more of the wavelengths, by dynamically determining possible restoration routes, and re-routing each wavelength along a chosen one of the possible restoration routes. A distributed dynamic search for restoration routes down to the optical layer, for wavelengths, gives faster and more scalable restoration than reconfiguring routing tables and enables much better utilisation of bandwidth than using predetermined restoration paths.

A golf ball including an improved mantle composition which results in improved performance characteristics. The composition includes a soft, flexible resin, such as an elastomer, and a quantity of at least one hardness-enhancing material, such as a quantity of fibers or fiber segments, such as glass, carbon, aramid, and/or metallic fibers, and, optionally, at least one ionomer. The hardness-enhancing material can constitute about 1 to about 30 wt % of the intermediate layer. The composition of the intermediate layer enables the golf ball to maintain initial speed and distance of known golf balls, while improving upon spin rate and playability. Alternatively, spin rate and playability can be maintained, while improving upon the initial speed and distance.

A shift register circuit comprises a first transistor between a gate line output terminal and a clock terminal, a second transistor between the gate line output terminal and a first power supply terminal, a third transistor between a carry signal output terminal and the clock terminal and a fourth transistor between the carry signal output terminal and the first power supply terminal. Gates of the second and fourth transistors are connected to each other. A fifth transistor connected between a gate of the first transistor and a second power supply terminal and a sixth transistor connected between a gate of the third transistor and the second power supply terminal have gates both of which are connected to an input terminal. With this constitution, it is possible to suppress an influence between two synchronous output signals outputted from the shift register circuit.

An earth working vehicle which has an internal combustion engine and a driveline for establishing a driving relationship between the internal combustion engine and wheels of the earth working vehicle. The driveline includes a mechanical CVT. The earth working vehicle also has a control for manual operation by a driver of the earth working vehicle, the control operable by the driver to select among at least two modes of operation, namely a first mode of operation and a second mode of operation, the selection of the first mode of operation corresponding to a command to cause the vehicle to move forward, the selection of the second mode of operation corresponding to a command to cause the vehicle to move backwards. The earth moving vehicle also has an electronic controller. While the vehicle is in motion, the electronic controller is responsive to a change of a mode of operation made via the control and indicating a command to reverse a direction of travel of the vehicle, to issue a control signal to the mechanical CVT to cause the mechanical CVT to downshift.

Methods are provided for controlling a vehicle speed during a downhill travel. Based on the estimated grade of the downhill travel and further based on an input received from the operator, different combinations of an engine braking torque and a regenerative braking torque are used to maintain the vehicle speed during the downhill travel. A battery rate of charging is also adjusted based on the duration or distance of the downhill travel, as indicated by the operator input.

A wireless access point with a centralized media access controller MAC (402) that enables multiple radios (404, 412, 408) to share MAC resources and implement load balancing and frequency control.

Improved approaches to providing thermal and power management for a computing device are disclosed. These approaches facilitate intelligent control of a processor's clock frequency and/or a fan's speed so as to provide thermal and/or power management for the computing device.

A method of driving an ink-jet printhead, the ink-jet printhead having a pressure chamber to be filled with ink, a piezoelectric actuator for varying a volume of the pressure chamber, and a nozzle, through which an ink droplet is ejected, connected to the pressure chamber, the method including applying a driving pulse to the piezoelectric actuator to change the volume of the pressure chamber, thereby ejecting the ink droplet through the nozzle due to a change in pressure in the pressure chamber caused by the change in volume of the pressure chamber, and changing a volume of the ink droplet ejected through the nozzle by maintaining a rising time of the driving pulse constant and adjusting a duration time of a maximum voltage of the driving pulse.

Onto the surface of a dressing tool for removing the clogging of an abrasive cloth, diamond grains of plural groups each having a different average particle diameter are subjected to be mixed and then fixed. In this state, the upper end of small diamond grains 4 is projected over nickel plating 2. Thereby foreign substances aggregated in the concave of the abrasive cloth are effectively removed and at the same time wearing the surface of the nickel plating 2 is prevented. Achieved are the stabilization of a polishing speed in polishing and the inhibition of dropping out diamond grains and wearing nickel plating in dressing.

A turbocharger in which a drive shaft supports at one end a turbine driven by exhaust gases from an internal combustion engine. The end of the drive shaft remote from the turbine supports a drive connection which is coupled to an output shaft of the driving engine. The shaft is supported in a housing by a first bearing adjacent the turbine and a second bearing adjacent the drive coupling. The first and second bearings each define an inner bearing surface relative to which the shaft rotates and an outer bearing surface which rotates relative to the housing. The first and second bearings are mechanically coupled together such that they rotate relative to the housing at the same speed. Coupling the two bearings together ensures that directional forces applied to the bearing at the end adjacent the drive connection which might cause that bearing to seize are resisted by torque delivered from the bearing at the other end of the shaft.

Traffic through a portion of a city formed of streets defining a grid includes clusters of traffic signs, each cluster being positioned at an intersection and having its own cluster process controller. The clusters also include cameras monitoring traffic through and at each intersection. The cameras provide information used locally or at remote localities to control traffic. The remote localities may include a traffic command center, fire/police stations or a home security office.

A boat or ship (marine vessel) can be powered and propelled by using wind or solar energy. This propulsion results in the forward movement and six degrees of motion (roll, heave, pitch, yaw, surge, and sway) of the marine vessel. These motions have kinetic energy. This invention capitalizes on the fact that the solar wind and wave energy are cyclical by nature. The present invention enables the vessel to store energy harvested from these energy sources during periods when levels of energy is available from wind, solar, or the motion of the vessel in waves. This invention makes this stored energy available for use during periods when the external natural sources of energy (wind, wave, or solar) are not available in adequate quantities to maintain a reasonable speed of advance for the marine vessel. The harvesting of the energy during high energy cycles, storing it and using it when needed in this invention allows a marine vessel to get maximum speed of advance over a course. In this invention the marine vessel can maintain faster average speed without reliance on any fossil or chemical fuel and by only using renewable energy sources. In this invention the vessel is normally driven by wind channeling methods like canvas or foil sails or Flettner rotors. In addition to this, the vessel can be propelled by propulsion thrusters such as propellers, rim driven thrusters, azimuthing drives, water jets or other means of thrusting and propelling the vessel. These propulsion devices are driven by regenerative electric motors using stored electric energy in batteries on the vessel. The energy stored in the battery bank is used to provide supplemental or primary propulsion during cyclical periods when natural sources of wind, wave or solar energy are low. These same thrusters and their electric motors work in reverse to generate and harvest energy when wind levels are high and as the marine vessel is moving forward at higher speeds while being propelled by wind energy. In this invention the batteries, which are dense and heavy, to store this energy, are secured in the bottom of the marine vessel also serve as ballast to keep the vessel upright. This serves to lower the marine vessel's center of gravity to get the maximum hull stability for safety. This also helps the vessel channel maximum available wind energy to propel the vessel and harvest energy whenever stronger winds permit.

The present invention describes a two-wheel drive bicycle. The drive train, which supplies power to the front wheel, is incorporated into a modified frame. The bicycle includes a rear wheel driven by a traditional chain mechanism. The front wheel is driven by a series of shafts transmitting power from the driven rear wheel to the front wheel.

A servo control device 10 connected to servo motors 21 to control them includes a digital logic circuit 11 having a predetermined bit width. The digital logic circuit 11 includes at least one pair of parallel arithmetical circuits 11a, 11b.

A high-speed wireless LAN system capable of avoiding a collision of packets and maintaining the original transmission speed is provided. A transmitter is applied to an HT terminal using a second frequency band wider than a first frequency band used by a legacy terminal, in which an HT sequence is started after a legacy beacon as an occupation signal and a legacy CTS are transmitted using every frequency in the second frequency band. Due to this, an NAV is set at the legacy terminal and packets are no longer transmitted from the legacy terminal. As a result, a collision of packets is avoided and it becomes possible to perform communication between HT terminals at the original transmission speed.

The invention relates to a turbine engine that includes at least first and second lift turbine stacks with transverse flow. The shafts of adjacent turbines in the first stack are connected by a first coupling device adapted for compensating space misalignments, and the shafts of adjacent turbines in the first stack are connected by a second coupling device adapted for compensating for space misalignments. The turbine engine includes a device for supporting the first and second turbine stacks, which is symmetrical to said plane, and a control device adapted for permanently maintaining the symmetry between the first and second turbine stacks relative to the plane, and for maintaining the rotation speeds of the first and second turbine stacks at equal values in opposite rotation directions.

A transaction system (104, 144) includes a customer station (116, 146) and a service provider station (112, 148). Items such as medical items, are passed between the service provider and the customer station through item transport devices (118, 154). An enclosure (10) positioned at the customer station houses a payment terminal (16) therein. A movable cover (14) is moved responsive to inputs to a remote control device (36) at the service provider station to enable a customer at the customer station to access the payment terminal. Through inputs to the payment terminal, the customer is enabled to make payment for items that are provided to the customer by the service provider.

A control method according for an impact wrench includes ascertaining whether the impact wrench applies an impact when the drive shaft rotates in a lower speed range. The speed of the drive shaft then is increased to a higher speed range as a function of an ascertained impact during the rotation in the lower speed range.

A system whereby a computer program can be transformed so that one or more of the program's symbolic references are made suitable for redirection. Once provided with redirectable symbols, the functionality of the program is easily changed at a later time, such as at start-up time or at run-time. A first phase converts a pre-existing computer program so that symbols can be re-directed. This first phase also generates auxiliary files for use in a later phase. A second phase is where the converted computer program is loaded into, and executed upon, a user's computer. A third phase is where the original computer program functionality is modified. The modification occurs at a high-level and can be performed easily by someone who was not involved in the programming of the original program. Modifications are simplified to the extent that even non-programmers can change the functionality of the computer program. This third phase uses the auxiliary file generated in the first phase. A fourth phase is where the modified functionality is loaded into an end-user's computer and is executed in conjunction with the converted program. Other features of the invention include the use of a table to facilitate symbol redirection and automatic identification of symbols and generation of auxiliary files and intermediary files to accomplish compilation steps necessary for program and add-on module builds.

A windmill design in which all rigid blades are replaced by sail-type Blades that are only supported by tension. Each Blade is connected to a central Hub and outer Rim by means of two Spokes, and is twisted in shape to maintain a materially constant free wheeling angular velocity at any radial location along the Blade while preserving a near-constant width. The cross section of the Rim is wing-shaped to produce laminar flow of air over the Blades.