31results about How to "Avoid amplitude" patented technology

A fiber-based source for high-energy picosecond and nanosecond pulses is described. By minimizing nonlinear energy limitations in fiber amplifiers, pulse energies close to the damage threshold of optical fibers can be generated. The implementation of optimized seed sources in conjunction with amplifier chains comprising at least one nonlinear fiber amplifier allows for the generation of near bandwidth-limited high-energy picosecond pulses. Optimized seed sources for high-energy pulsed fiber amplifiers comprise semiconductor lasers as well as stretched mode locked fiber lasers. The maximization of the pulse energies obtainable from fiber amplifiers further allows for the generation of high-energy ultraviolet and IR pulses at high repetition rates.

A magnetorestive sensor having improved pinning through the use of an Fe layer in the pinned layer structure. The pinned layer structure includes AP1 and AP2 magnetic layers separted from one another by a non-magnetic coupling layer. At least one of the AP1 and AP2 layers includes a layer of Fe which increases the intrinsic anisotropy Hk of the pinned layer structure, thereby preventing amplitude flipping.

Provided are high-low cycle compound fatigue test high-cycle amplitude measuring equipment and method. The equipment comprises a first low-cycle load stress application, a first stress transmission pin, a stress transmission main tension plate, a first pressing bolt, a blade clamp, a first stress transmission ejection plate, a high-frequency induction heating ring, a first rolling bearing, a stress transmission circular rod, a second stress transmission ejection plate, a turbine disc, a stress bearing convex lug, a second rolling bearing, a turbine blade, a second pressing bolt, a high-cycle load transmission plate, a second low-cycle load stress application mechanism, a second stress transmission pin, a vibration exciter, a needle tip and a telephoto microscope. The high-low cycle compound fatigue test high-cycle amplitude measuring equipment and method achieve the purpose that the amplitude of a blade tip can still be accurately measured even under a high temperature (200 DEG C).

An actuator 100 includes: a pair of driving portions 1, 11 spaced apart from each other; a movable portion 2 provided between the pair of driving portions 1, 11; a pair of supporting portions 3, 3 for supporting the pair of driving portions 1, 11 and the movable portion 2; a pair of first elastic connecting portions 4, 4 which respectively connect the pair of driving portions 1, 11 to the pair of supporting portions 3, 3 so that each of the driving portions 1, 11 can rotate with respect to the supporting portions 3, 3; and a pair of second elastic connecting portions 5, 5 which respectively connect the movable portion 2 to the pair of driving portions 1, 11 so that the movable portion 2 can rotate in accordance with the rotation of the pair of driving portions 1, 11. In this case, each of the pair of driving portions 1, 11 rotates around a rotation central axis 41 of the actuator 100 by application of an alternating voltage, whereby the movable portion 2 rotates around the rotation central axis 41 of the actuator 100. Further, the torsional rigidity of each of the first elastic connecting portions 4, 4 is larger than that of each of the second elastic connecting portions 5, 5.

In a case where the amplitude of a detection voltage is increased, the amplitude of a drive current flowing in a detection-target capacitor also increases, and thus, the amplitude of a detection current also increases. In this case, the increase in amplitude of the detection current is not directly restricted by the condition of a power supply voltage range enabling a circuit to operate. For this reason, a current conversion ratio of a current output circuit or a capacitance value of a capacitor of a current-voltage conversion circuit is set to an appropriate value so as not to cause a voltage to exceed the power supply voltage range, thereby preventing the amplitude of the detection current from being restricted by the condition of the power supply voltage range. Therefore, it is possible to increase the amplitude of the detection voltage to a maximum within the power supply voltage range.

A satellite receiving converter of the present invention performs receiving operation in response to a pulse signal supplied from a tuner. To prevent an amplitude of the pulse signal from being largely reduced in the receiving operation, the satellite receiving converter includes a trap circuit made up of an inductor and a capacitor. The trap circuit is provided after a low-pass filter which divides a pulse signal and a direct-current voltage supplied to a regulator IC. The trap circuit is provided so as to raise impedance with respect to the pulse signal at a signal input-output terminal, thereby preventing error operation of an internal circuit, such as a control circuit.

The invention relates to an oscillator circuit configuration comprising in an LC-parallel oscillatory circuit and a transistor as an amplifying element. A compensating winding is associated with the parallel oscillatory circuit whereby the collector voltage of the transistor is fed to said winding in order to compensate the effect of the parasitic collector capacity. Preferably, the collector current from the transistor is maintained constant be an amplifier.

The embodiments of the present invention relate to a magnetic read head with pinned layers extending to the ABS of the read head and in contact with an antiferromagnetic layer that is recessed in relation to the ABS of the read head. The recessed antiferromagnetic layer may be disposed above or below the pinned layer structure and provides a pinning field to prevent amplitude flipping in head operation. In these embodiments of the present invention, the read gap of the sensor, that is the distance between the highly permeable, magnetically soft upper and lower shield layers at the ABS, is reduced by the thickness of the antiferromagnetic layer.

An oscillator circuit configuration comprising in an LC-parallel oscillatory circuit and a transistor as an amplifying element. A compensating winding is associated with the parallel oscillatory circuit whereby the collector voltage of the transistor is fed to said winding in order to compensate the effect of the parasitic collector capacity. Preferably, the collector current from the transistor is maintained constant be an amplifier.

A control method for a backlight module having a driving circuit and at least one lighting element includes the steps of controlling the driving circuit to drive the lighting element according to a first-type control signal before a first time instant, controlling the driving circuit to drive the lighting element according to a transition modulation signal at a time instant between the first time instant and a second time instant, and controlling the driving circuit to drive the lighting element according to a second-type control signal after the second time instant.

A detector includes a binarizer for binarizing the amplitude of an input FSK signal; a 2n-stage shift register having 2n registers for sequentially shifting the FSK signal binarized by the binarizer in response to a clock; and an adder for calculating a sum of a total number of FSK signals having the value of “1” or “0” among FSK signals stored in a first to an n-th register of the 2n-stage shift register and a total number of FSK signals having the value of “0” or “1” among FSK signals stored in an (n+1)th to a 2n-th register.

An actuator 100 includes: a pair of driving portions 1, 11 spaced apart from each other; a movable portion 2 provided between the pair of driving portions 1, 11; a pair of supporting portions 3, 3 for supporting the pair of driving portions 1, 11 and the movable portion 2; a pair of first elastic connecting portions 4, 4 which respectively connect the pair of driving portions 1, 11 to the pair of supporting portions 3, 3 so that each of the driving portions 1, 11 can rotate with respect to the supporting portions 3, 3; and a pair of second elastic connecting portions 5, 5 which respectively connect the movable portion 2 to the pair of driving portions 1, 11 so that the movable portion 2 can rotate in accordance with the rotation of the pair of driving portions 1, 11. In this case, each of the pair of driving portions 1, 11 rotates around a rotation central axis 41 of the actuator 100 by application of an alternating voltage, whereby the movable portion 2 rotates around the rotation central axis 41 of the actuator 100. Further, the torsional rigidity of each of the first elastic connecting portions 4, 4 is larger than that of each of the second elastic connecting portions 5, 5.

When the instruction for increasing the volume level is input by the user's operation and the signal representing the set value or more is output from a detector, a controller does not increase the volume levels of the first volume controller and the second volume controller. When the signal representing the set value or more is not output from the detector and the second volume level has a predetermined value, the controller increases the first volume level. When the signal representing the set value or more is not output from the detector and the second volume level is less than the predetermined value, the controller increases the second volume level.

The present invention relates to amplitude controlling method for reciprocating compressor, and is especially one amplitude controlling method to prevent excessive amplitude via altering the amplitude based on load in the initial stage automatically. The amplitude controlling method includes four steps: detecting motor voltage and motor current; detecting current load based on the detected voltage and current and comparing the load with reference load; altering the on time and off time of the switch control signal based on the comparison result; and controlling the on-off of the three terminal bi-directional SCR element to drive the reciprocating compressor with the switch control signal.

The present invention relates to methods for the prevention and / or treatment of memory impairment and for improving memory and particularly to methods for the prevention and / or treatment of memory impairment and improving memory comprising administering an agent that decreases activity of a GABAA receptor. The present invention also relates the use of an agent that decreases activity of a GABAA receptor for preventing or treating a memory deficit and for improving memory.

A control apparatus that is capable of maintaining both the control resolution and the control accuracy at respective high levels even when at least one of the nonlinearity and the frequency characteristic of a controlled object varies. A control apparatus 1 that control a cam phase Cain by a phase control input Ucain includes two controllers 102 and 103. The two-degree-of-freedom response-specifying controller 102 calculates a follow-up control input Rsld as a value for causing the cam phase to follow a target cam phase Cain_camd. The DSM controller 103 calculates a phase control input Ucain by modulating the follow-up control input Rsld, and in the calculation, the repetition period at which the phase control input Ucain is calculated is selected from two repetition periods ΔT1 and ΔT2 according to engine speed NE, a cam phase Cain, and a valve lift Liftin.

Embodiments relate to a processor for controlling an emergency operation of a multiphase induction machine upon an interruption of a first phase current of a first phase of the induction machine. The processor is designed to determine a control current setting, corresponding to the emergency operation, for a second phase of the induction machine in a coordinate system fixed to the stator through a combination of a first target current setting, corresponding to a normal operation of the electric engine, for the first phase and a second target current setting for the second phase in a coordinate system fixed to the stator. This distinguishes a phase angle and an amplitude of the control current setting for the second phase from a phase angle and an amplitude of the second target current setting.

The invention discloses a novel bicycle speed reducer with power generation and speed reduction functions and utilizing water damping. The novel bicycle speed reducer with power generation and speed reduction functions and utilizing water damping comprises a support cross beam, wherein two telescopic rods are arranged on the lower end face of the support cross beam symmetrically with respect to the support cross beam, support rods are arranged on the lower sides of the telescopic rods, and damping devices are arranged on the sides, far away from the support cross beam, of the support rods. Thenovel bicycle speed reducer with power generation and speed reduction functions and utilizing water damping abandons the traditional design of hydraulic and pneumatic pressure speed reducers, and theliquid resistance principle is used for overcoming the amplitude generated when a spring rebounds; meanwhile, the rebound hardness of a shock absorber can be changed by adjusting the blade angle according to different environments of riders; besides, as the liquid resistance principle is used, a traditional shock absorption oil emulsification phenomenon does not occur, daily maintenance is more convenient, the service life is longer, and shock absorption abnormal sounds are avoided.

Provided are high-low cycle compound fatigue test high-cycle amplitude measuring equipment and method. The equipment comprises a first low-cycle load stress application, a first stress transmission pin, a stress transmission main tension plate, a first pressing bolt, a blade clamp, a first stress transmission ejection plate, a high-frequency induction heating ring, a first rolling bearing, a stress transmission circular rod, a second stress transmission ejection plate, a turbine disc, a stress bearing convex lug, a second rolling bearing, a turbine blade, a second pressing bolt, a high-cycle load transmission plate, a second low-cycle load stress application mechanism, a second stress transmission pin, a vibration exciter, a needle tip and a telephoto microscope. The high-low cycle compound fatigue test high-cycle amplitude measuring equipment and method achieve the purpose that the amplitude of a blade tip can still be accurately measured even under a high temperature (200 DEG C).

The invention provides a bearing roller ball base surface superfinishing mechanism. The bearing roller ball base surface superfinishing mechanism comprises a mounting base and a superfinishing assembly mounted on the mounting base. The bearing roller ball base surface superfinishing mechanism further comprises an oscillation assembly and a reset assembly. The superfinishing assembly comprises a coaming mounted on the mounting base and at least one set of superfinishing unit. The oscillation assembly is mounted on the mounting base. A plurality of sets of superfinishing units are arranged, andoilstones of the multiple sets of the superfinishing units are arranged on the coaming according to roller motion path trajectories so that the roller ball base surface can be ground along a curvilinear path. Meanwhile, the oscillation assembly is matched to drive all the superfinishing units to conduct fixed-amplitude oscillation grinding synchronously in the vertical direction. The effect that the amplitude of the oilstones is consistent to the frequency of vibrations is guaranteed, superfinishing precision of the roller ball base surface is improved and roller machining quality is also improved.

A vibration structure of electrical toothbrush includes a shaft rod, a rocking rod, a fixing member and a vibration stem. The shaft rod has a first end and a second end. A driving power is applied to the first end to drive and vibrate the shaft rod. One end of the rocking rod is correspondingly inserted in the second end of the shaft rod. A weight block is disposed at the other end of the rocking rod. The weight block is eccentrically arranged to cause unbalance of the rocking rod to deflect from a central axis of the shaft rod. The fixing member is fitted on the rocking rod between the shaft rod and the weight block. The vibration stem is formed with an internal first space. The shaft rod is correspondingly disposed in the first space with the fixing member in contact with inner side of the vibration stem.

The invention provides an ultrafine equipment oscillation mechanism comprising a rotary driving device and an oscillator seat arranged outside a rotary shaft of the rotary driving device coaxially ina sleeving mode. The ultrafine equipment oscillation mechanism further comprises an amplitude adjusting assembly and an oscillator longitudinal pin. The rotary driving device is utilized for driving the rotary shaft amplitude adjusting assembly to rotate synchronously, the oscillator longitudinal pin oscillates in a reciprocating fixed-amplitude mode in the vertical direction in the oscillator seat through intermittent contact of the amplitude adjusting assembly and the matching end of the oscillator longitudinal pin, and adjustable amplitude and oscillation frequency of the oscillation mechanism are achieved by adjusting the contact distance of an amplitude assembly and the matching end and the quantity of convex parts while the technical problem of insufficient stability of the oscillation mechanism is solved.