85results about How to "Reliable compensation" patented technology

A digital group delay compensation system comprising a digital allpass filter that is utilized in an implementation phase; and a system that generates coefficients for the allpass filter used in the implementation phase such that the overall performance of a system is measured and optimized in a calibration phase.

The object of the present invention is to provide a WDM optical communication system and a WDM communication method wherein deviation of transmission characteristics of optical signals of respective wavelengths is reliably controlled, based on reception information such as the OSNR, BER and the like measured at the receiving end, thereby enabling optimal transmission conditions to be realized. For this purpose, the present WDM optical communication system transmits WDM signal light of wavelengths λ1˜λn, which has been generated by the transmitting end of one terminal station, to the receiving end of the other terminal station through an optical transmission path. At the receiving end, the OSNR and BER of the optical signals of wavelengths λ1˜λn are measured, and the result is superimposed on overhead information transmitted along the opposing line of the optical transmission path as reception information. At the transmitting end, the settings of pre-emphasis and a parameter α are feedback controlled based on the reception information about each wavelength transmitted, and deviation of transmission characteristics of respective wavelengths is thus suppressed.

The present invention aims at providing a drive control apparatus and a drive control method with a simple configuration, which can also reliably compensate for operating point fluctuations of an optical modulator driven in accordance with a drive signal corresponding to a clock signal. To this end, the drive control apparatus of the present invention is configured to supply, to an optical modulator of which the optical output characteristics with respect to drive voltage are changed periodically, a drive signal having a waveform corresponding to a clock signal, and the amplitude of which is set to around 2Vπ, detect the power of an optical signal output from the optical modulator, and control an operating point of the optical modulator so that an average value of the optical signal power becomes a maximum.

In order to monitor an imaging device for x-ray machines it is proposed that reference system data (19) be recorded in conjunction with a calibration (16) or offset acquisition and that current comparison system data (20) be recorded later in the operating process, and that the performance of a new calibration (16) or the recording of a new offset image be triggered if the current comparison system data (20) deviates from the reference system data (19) by a predefined amount.

The present invention provides a transmission device for predistorting a digital signal in order to compensate distortion, then amplifying and transmitting it. A digital input signal is converted to a first analog signal by a first D / A converter. Separately, the digital input signal is also subjected to predistortion. A compensating signal is then generated from the digital input signal and the predistorted signal. The compensating signal generated thereby is converted into a second analog signal by a second D / A converter. The first analog signal and second analog signal are then added, this addition operation giving a compensated analog transmission signal. This analog transmission signal is supplied to the amplifier for amplification, and then transmitted via an antenna.

A pressure compensation device for compensating an internal pressure in a housing of an electrochemical device is provided, including at least one gas through-opening and at least one membrane element with a gas-permeable membrane, which is deformable depending on a change in the internal pressure and by which the gas through-opening is blocked, and a protective degassing element, which is configured and arranged in such a way that when a critical deformation of the membrane is reached, it damages the membrane in such a way that the membrane at least partially opens the gas through-opening for protective degassing of the housing. The pressure compensation device allows both reliable pressure compensation between the interior of the housing and the exterior of the housing of an electrochemical device during normal operation of the electrochemical device and also ensures reliable bursting protection in the event of excess internal pressure in the housing.

The present invention relates to the area of orthopaedic surgery, and in particular to a system for ensuring that prosthesis components or parts thereof are inserted correctly upon implantation of artificial hip joints and to methods for ensuring correct insertion of the parts of an artificial hip joint or femoral prosthesis during surgery. This system comprises a tool (30) for controlling the mutual positioning of the main components in a hip prosthesis, a measuring device (40), for measuring the distance between two supports connected to the patient's pelvis and leg, and connection members (46, 47) arranged at said measuring device, where said connection members are adapted to interact with receptors at said supports.

A sheet entity, in particular for use as a skin panel for an aircraft fuselage, with a carbon fibre-reinforced plastic laminate and an aluminum-based metal laminate in the edge region, which are connected with one another by means of an adhesive bond, and thereby are electrically insulated from one another, and are stepped back by layers. Also disclosed is a fuselage cell of an aircraft with at least one sheet entity of this type.

A proportional solenoid valve or a camshaft adjusting device of motor vehicles has a valve housing and a piston movably arranged in the valve housing and provided with at least one pressure medium passage. A solenoid part is connected to the valve housing and acts on the piston. The valve housing has at least one working connector, a tank connector, and a pressure connector configured to supply a pressure medium into the piston. A leakage passage is provided that connects the pressure connector at all times to the at least one working connector.

A disc brake for a motor vehicle brake system and a restoring spring arranged therein, the disc brake comprising the following: a brake support which has at least one receiving region; a brake lining arrangement which has a brake lining support and a brake lining which is attached to the brake lining support and which can be brought into interaction with a brake disc in order to achieve a braking effect, wherein the brake lining arrangement is received in the at least one receiving region in a guided manner via a guiding portion formed on the brake lining support; and at least one restoring spring which engages the brake lining arrangement and biases the brake lining arrangement under elastic deformation into a starting position that does not produce a braking effect. The at least one restoring spring can be plastically deformed in order to compensate for brake lining wear. To improve the wear compensation by means of the restoring spring, rests against the brake support via a base portion and has at least one limb which is connected to the base portion via a connecting region and which is arranged at an angle relative to the base portion, the angle changing under the effect of plastic deformation as the brake lining wear increases.

A memory circuit comprising a memory cell which has a resistance memory element and is connected between a ground terminal and a capacitance has a reference memory cell with a reference resistance which is connected between the ground terminal and a reference capacitance, in which case, during the reading operation of the memory cell, the memory cell and the reference memory cell are switched on in order to charge or discharge the capacitance and the reference capacitance, and an evaluation device evaluates the difference between the electrical potentials of the capacitance and the reference capacitance at a predetermined instant after the switching-on of the memory cell and the reference memory cell.

A wavelength dispersion compensating apparatus of the invention comprises: a VIPA plate capable to output incident lights at different angles according to wavelengths; a variable dispersion diffraction grating which can angularly disperse the lights of respective wavelengths output from the VIPA plate, in a direction substantially perpendicular to a direction of angular dispersion in the VIPA plate and also capable to change an amount of the angular dispersion; a light return apparatus which condenses the output lights from the variable dispersion diffraction grating and reflects them by a mirror, to return them to the VIPA plate side; and a stage rotation mechanism which rotates a movable stage on which the lens and the mirror are mounted, according to a diffraction angle in the variable dispersion diffraction grating, so as to enable wavelength dispersion and wavelength dispersion slope to be given to a WDM light, to be changed independently. As a result, it becomes possible to compensate for, over a wide wavelength band, the wavelength dispersion and wavelength dispersion slope of the WDM light, which are propagated through an optical fiber to be accumulated.

An electrical connector (100) includes an insulative housing (40) and a terminal module (10) retained in the insulative housing and configured with a selected terminal (11), a determined terminal (12) and a specific terminal (13) molded within a dielectric wafer (2). A coupling lead-frame (3) is disposed onto a surface of the dielectric wafer and has its main portion (3a) parallel and aligned with the specific terminal. The coupling lead-frame includes one pin leg (311) crossing over the determined terminal and having a physical and electrical engagement with the selected terminal so as to establish an electrical coupling between the selected terminal and the specific terminal.

A blower is provided, and comprises a blower fan, a motor for driving the fan, a blower tube that extends from the fan, and a potential compensation conductor that extends within the blower tube and is connected with the motor in an electrically conductive manner.

The present invention provides a medical apparatus (100) comprising a magnetic resonance imaging system (110) for acquiring magnetic resonance data from an imaging volume (122) covering at least partially a subject of interest (120), wherein the magnetic resonance imaging system (110) comprises a main magnet (112) for generating a magnetic field within the imaging volume (122), a particle beam apparatus (150) having a particle beam line (152) for a particle beam (154) of charged particles, including a gantry (156) configured for rotating around a rotational axis (R), which is arranged in the longitudinal direction of the main magnet (112), wherein the gantry (156) comprises at least one bending magnet (158) for directing the particle beam (154) to an irradiation volume (124) within the imaging volume (122), an active compensation coil (200), which is arranged to substantially surround at least the imaging volume (122), and a control unit (132) for controlling the active compensation coil (200) for canceling a stray field caused by the at least one bending magnet (158) within the imaging volume (122) at least in the longitudinal direction of the main magnet (112). The present invention also provides a shielding method for use in the above medical apparatus (100).

Electric motor control is based on a target energization amount calculated using a braking operation member operation amount. A state quantity is acquired as an actual value, indicating an actual actuation state of a movable member located in a power transmission path from the electric motor to a friction member. Using the operation amount, it is determined whether or not inertia compensation control is necessary, which compensates for the inertia influence of a brake actuator during electric motor deceleration. “A target value corresponding to the actual value” is determined as a reference value, which is calculated based on the operation amount at a time when inertia compensation control is necessary. Based on the actual and reference values, “an inertia compensation energization amount for decreasing the target energization amount to compensate for the influence of inertia” is calculated, and the target energization amount is adjusted using the inertia compensation energization amount.

Target velocity data D14 specifying injection operation required for a injection cylinder unit is set in advance, the injection operation is performed actually, command data D17 given to the injection cylinder unit during the injection operation and detected velocity data D15 indicating the operation performed by the injection cylinder unit are recorded, correction value data D18 is calculated from a difference between the detected velocity data D15 and the target velocity data D14 to correct the command data D17 of the previous injection operation by using the correction value, auxiliary amplifier command data D19 is generated as the command data for the next injection operation, and the injection cylinder unit is operated by giving the generated auxiliary amplifier command data at the time of the next injection operation.

The invention discloses a compensation method for magnetic suspension hysteresis, comprising the following steps of: using a sensor to measure offset; using a controller to generate a differential control signal, and judging a demagnetization control signal; processing weighing treatment for the demagnetization control signal; using a power amplifier to generate excitation current of generating magnetization and demagnetization respectively; wherein, the excitation current enables the increasing amount equal to the decreasing amount of magnetic strength generated by the differential electromagnet; or making the increasing amount equal to the decreasing amount of a magnetic strength generated by the differential electromagnet by increasing the compensation current for increasing compensation coil and corresponding compensation power amplifier. The invention compensates magnetic hysteresis. The invention is simple and convenient, stable and reliable. The invention makes the increasing amount equal to the decreasing amount of magnetic strength generated by the differential electromagnet. The invention carbonizes and equalizes magnetization and demagnetization. The invention guarantees the suspended matter restore to balancing position, so as to improve stability of the magnetic suspension system.

The invention provides a fiber grating self-compensating strain transducer manufactured by adopting an online molding process, relating to the technical field of temperature transducers. A compensating device is composed of a part B and a solid body which are connected in series, wherein, the solid body is manufactured by adopting the online molding process for embedding and fixing the whole fiber grating in the solid body, and at least one of the cross-sectional area and thermal expansion coefficient of the part B and the solid body is different from each other. The strain transducer has the positive effects that: when the environmental temperature rises or falls, the automatic compensation to grating wavelength temperature drift can be realized by the effect of stress deformation, with precision compensation and good working stability; moreover, the strain transducer also has the advantages of small size, low cost, easy processing, good working stability, convenient use, stability and reliability, and long service life; the molding process of the strain transducer is simple and convenient, the compensation performance can be guaranteed to be reliable, and the problems that grating adhesive process has easy creep deformation, easy aging, unreliable grating combination, short service life and the like in the prior art are solved.

The invention relates to a wheel suspension for motor vehicles with level adjustment of the body, having a vertical adjusting device (22; 80) which is disposed between a wheel guide element and the superstructure of the motor vehicle and which is particularly designed as a ball screw mechanism driven by an electric motor and acts on an adjusting plate spring (34) of at least one support spring (14), wherein the vertical adjusting device (22; 80) is outwardly sealed by at least one enclosing rubber-elastic bellows (50, 52; 100). In order to prevent deformation of the at least one bellows and ingress of dirt or moisture into the vertical adjusting device, the invention proposes that the interior space (54, 56; 102) enclosed by the bellows (50, 52; 100) is connected directly or indirectly to an auxiliary volume (66; 108) positioned outside of the bellows (50, 52; 100).

A sealing device for sealing container bowls with a heat sealing film has several sealing heads each correlated with one container receptacle. The sealing heads are movable in a sealing stroke direction relative to the container receptacles that are connected fixedly to each other. The sealing heads are forced with pretension into a rest position by spring elements in the sealing stroke direction against a stop, each sealing head having one stop associated therewith. For simultaneous sealing of the heat sealing film onto the several container bowls, a spring support, on which the spring elements are jointly secured, is moved together with the sealing heads so far in the sealing stroke direction relative to the container receptacles that the sealing heads upon impacting on the container receptacles correlated therewith, with interposition of the container bowls and the heat sealing film, are lifted off their stops against the pretension.

The invention relates to an electronic arrangement having a directly contactable circuit board (2), said electronic arrangement comprising: a circuit board (2) that includes at least one electric contact for electric contacting, a housing (3) inside which the circuit board (2) is arranged, and a plug shroud (33) that is arranged on the housing (3). The circuit board (2) includes a first circuit board half (24) that has a support (4) for supporting the circuit board (4), and a second circuit board half (25). The circuit board (2) is supported on the support (4) in such a way that the support (4) defines a swivel region, in particular a swivel axis of the circuit board (2), about which the circuit board (2) can swivel.

The invention discloses a far-end voltage stabilizing method based on single-line voltage-drop sampling computing and compensating. The far-end voltage stabilizing method comprises the following stepsof 1, making two ends of a fine wire connected with a sampling input positive electrode of a single-chip microcomputer and a power supply negative electrode of a load end respectively, and making a sampling input negative electrode of the single-chip microcomputer connected with a power supply output end negative electrode of a power source; 2, in the process of supplying power to a load by the power source, sampling voltage signals on the fine wire, and determining a compensation voltage value according to the voltage signals; 3, adjusting output voltage of the power source according to thedetermined compensation voltage value. By means of the far-end voltage stabilizing method based on single-line voltage-drop sampling computing and compensating, voltage difference between a negative electrode of the power source and a negative electrode of the load is innovatively sampled, and according to the sampling result, compensation voltage is determined to remotely adjust the voltage difference compensation reliably. Therefore, the far-end voltage stabilizing method has the outstanding advantages of being high in reliability, easy to implement, high in adaptability and the like.

The invention relates to a winch device with a first winch having a first winch drum and a second winch having a second winch drum. There is also a synchronizing device through which a rotation of the first winch drum can be synchronized with the rotation of the second winch drum. Further, a differential shaft with a first synchronous wheel and a second synchronous wheel is provided, said first synchronous wheel being connected via a first rotary connection device to a first drive and the second synchronous wheel is connected via a second rotary connection device to the second drive.

A disc brake for a motor vehicle brake system and a restoring spring arranged therein, the disc brake comprising the following: a brake support which has at least one receiving region; a brake lining arrangement which has a brake lining support and a brake lining which is attached to the brake lining support and which can be brought into interaction with a brake disc in order to achieve a braking effect, wherein the brake lining arrangement is received in the at least one receiving region in a guided manner via a guiding portion formed on the brake lining support; and at least one restoring spring which engages the brake lining arrangement and biases the brake lining arrangement under elastic deformation into a starting position that does not produce a braking effect. The at least one restoring spring can be plastically deformed in order to compensate for brake lining wear. To improve the wear compensation by means of the restoring spring, rests against the brake support via a base portion and has at least one limb which is connected to the base portion via a connecting region and which is arranged at an angle relative to the base portion, the angle changing under the effect of plastic deformation as the brake lining wear increases.

In a method for compensation of the first postage value of an unusable printed franking imprint billed in a billing module of a franking arrangement, the occurrence of the unusable franking imprint is detected as a first error event, error information associated with the error event is stored, and information derived from the error information is transmitted to a reimbursement entity for initiation of the reimbursement of the postage value. The error amount information associated with the error event is increased by the postage value and the error amount information is transmitted to the reimbursement entity for initiation of the reimbursement of the postage value.