43results about How to "Compensate relative offset" patented technology

A system (100) for controlling a rotorcraft (1) including a rotor (10), at least one variable-pitch propulsion propeller (6L, 6R), and a motor (5) for driving the rotor and the propeller(s), the system includes:

• • a member (101, 101A, 102, 103, 104) for generating a propeller pitch setpoint (θ_p*+θ_d*, θ_p*−θ_d*) as a function at least of a thrust variation command (TCL);
  • a member (105, 105A) for generating a setpoint (RPM*) for the drive speed (RPM) of the rotor and the propeller(s), as a function at least of the travel speed (VTAS) of the rotorcraft; and
  • a member (106) for generating a setpoint (NG*) for the engine speed as a function at least of the thrust command (TCL), of the drive speed setpoint (PTM*), and of a rotor collective pitch command (θ₀).

An electrophysiological sensor, weak electrical signal conditioning circuit and method for controlling the circuit as provided. The sensor includes rigid filiform conducting nanostructures connected to a conducting substrate and operable to penetrate an organic tissue. The circuit includes an instrumentation amplifier with an input connected to a first electrode in contact with a first area of a medium, and a second input; a voltage generating device connected to an electrode in contact with a second area of the medium for applying a continuous reference signal to it; a compensator, electrically insulated from the device, for compensating the direct current offsets of a weak electrical signal received by the first electrode, generating a signal with a reference voltage with a value which can be modified by a control system, and supplying it to the second input. A method is also provided for controlling the circuit.

A sealing segment for sealingly connecting two structural components parts which are movable relative to one another, with two sealing bodies which are connected to one another by a web and which can be arranged in recesses of the structural component parts in an articulated manner, and a sealing segment arrangement with a plurality of sealing segments of this type, and a flow machine with a sealing segment arrangement of this type.

A camera holder (3) is provided for fixing a camera (11) or a camcorder to an optical observation device. The holder (3) has a variable-length sleeve (13) with a first end configured to receive the camera objective and a second end configured to secure the sleeve (13) relative to the optical observation device. The holder (3) also has an adjusting device (19) fixed to the sleeve (13). The adjusting device (19) has a pin for connection with a stand mating thread of a camera (11) and is configured to compensate for an offset between the stand mating thread and the camera objective. The adjusting device (19) enables the camera (11) to be positioned with respect to the sleeve and the optical observation device.

In a system that demodulates a frequency modulated signal using a quadrature detector circuit, an apparatus that tunes the output signal to compensate for any offset in the signal includes an offset adjustment circuit and a control circuit. The offset adjustment circuit is operably coupled to the control circuit which may consist of a DAC and a digital logic such as a computer CPU. The control circuit determines a correction signal in response to a sequence of sampled of the system output, and supplies the correction signal to the offset adjustment circuit. The offset adjustment circuit provides an offset correction signal in response to the correction signal, and combines the offset correction signal with the output of the quadrature detector to provide an offset adjusted signal at an output node.

A hybrid helicopter (1) includes firstly an airframe provided with a fuselage (2) and a lift-producing surface (3), together with stabilizer surfaces (30, 35, 40), and secondly with a drive system including:

• • a mechanical interconnection system (15) between firstly a rotor (10) of radius (R) with collective pitch and cyclic pitch control of the blades (11) of the rotor (10), and secondly at least one propeller (6) with collective pitch control of the blades of the propeller (6); and
  • at least one turbine engine (5) driving the mechanical interconnection system (15). The speed of rotation (Ω) of the rotor (10) is equal to a first speed of rotation (Ω1) up to a first flightpath air speed (V1) of the hybrid helicopter (1), and is then reduced progressively in application of a linear relationship as a function of the flightpath air speed of the hybrid helicopter.

A robotic scanning system is provided. The scanning system includes a robotic array having at least one set of scanning robots configured to perform a radiological scan on a subject, each robot having a respective emitter or detector. A control unit in electrical communication with the robotic array controls the set of scanning robots to perform the radiological scan in accordance with scan settings received from a work station. The work station is configured to permit a user to select a radiological scan to perform on the subject from a plurality of different types of radiological scans selectable by the user. An image processing device in the system receives scan data from the robotic array and produces image data indicative of a multi-dimensional image of at least a portion of the subject.

Disclosed is a method for setting a current sensor of a vehicle having a drive motor according to an exemplary embodiment of the present invention may include confirming a first condition that a vehicle stops its movement, confirming a second condition that a required torque of a drive motor of a vehicle is 0, stopping a current that is supplied to the drive motor if the first condition and the second condition are satisfied, and compensating offset of the current sensor of a drive motor control unit controlling the drive motor. The offset may be compensated if the first condition and the second condition are satisfied for a predetermined time. Accordingly, an offset of the current sensor is compensated in a predetermined driving condition that the vehicle stops moving and therefore the creep surge and the motor torque ripple that can be generated in the vehicle are prevented.

The present invention relates to an electronic device that includes an integrated power comparator circuit (1) for a self-oscillating class D system (100). The integrated power comparator circuit (1) has a modulation stage (10), wherein the modulation stage (10) comprises a compensation circuit (40) for providing a compensation signal to the modulation stage, which is dimensioned for compensating a variation of a process parameter for smoothing initialization of the self-oscillating class D system (100).

A fault location system for a telecommunications network including a local exchange or switch, a node such as a primary connection point and a plurality of line terminations includes probability calculation to establish the location of a fault measured from the exchange. Historical non-faulty reference values of capacitance are compiled for each line passing through the node providing a measure of the distance of each line. A lowest valid capacitance value provides an estimate of the reference capacitance between the exchange and the node. A histogram is compiled of historic fault values and a new fault is compared against the histogram to establish the probability of it being a fault at the node or elsewhere. As a result the reference capacitance can be obtained without the need for an engineer at the node, and the likely location of a fault can be pinpointed with greater accuracy.

The present invention relates to an apparatus for transferring electronic devices from a holding unit to a processing station. The apparatus comprises first and second rotating mechanisms having a plurality of handlers and a plurality of holders respectively, an imaging mechanism, a processor and an adjusting mechanism. In use, a handler retrieves an electronic device from the holding unit and moves the device to a transfer position. A holder retrieves the electronic device from the handler at the transfer position and transfers the electronic device to the processing station. Prior to this retrieval, the adjusting mechanism adjusts a relative position between the holder and the handler at the transfer position. This adjustment is based on offsets calculated by the processor using images of the handler and holder captured by the imaging mechanism. The adjustment allows the electronic device to be retrieved more securely by the holder.

Embodiments of the present invention provide an approach for improving overall chip speed by providing one or more sampling circuits in an ROIC so that signal processing and signal reading out operations may occur simultaneously instead of successively.

A fuel injector, in particular a fuel injector for fuel-injection systems of internal combustion engines, includes a piezoelectric or magnetostrictive actuator which is excitable via an electrical line and actuates a valve-closure member arranged in a housing, the valve-closure member cooperating with a valve-seat surface to form a sealing seat, and an hydraulic coupler. The hydraulic coupler is fixedly arranged between the actuator and a valve-assembly that includes the valve-closure member and the valve-seat surface.

An offset canceller outputs a signal during its offset compensating operation and compensates for the offset by capacitance or resistance devices connected externally to an operational amplifier. A driving circuit includes plural output circuits #1 to #n+1 for outputting driving signals to plural output terminals #1 to #n on one outputs and for outputting the driving signals on the other outputs coupled to corresponding plural output selectors #1 to #n, which then select one of two signals output from two neighboring output circuits to transmit the selected signals to the output terminals. The output circuits #1 to #n+1 have other outputs coupled to a decision circuit, which compares the signals to a reference voltage and outputs a decision signal representing the result of comparison at a predetermined timing. The output circuits execute the offset cancel operation responsive to the decision signal.

The invention relates to a shoulder module (3) for an exoskeleton structure, the shoulder module (3) being designed to connect an elbow module (4) attached to an arm of a user to a back module (2) attached to the back of the user, the shoulder module (3) comprising:

• • a plurality of connecting parts (34, 36, 38, 310), and
  • a first pivot (35) connecting two of the connecting parts (34, 36) while allowing rotation of one of the connecting parts with respect to the other connecting part (34) according to a first axis of rotation (X₁), during a rotation of the elbow module (4) with respect to the back module (2) corresponding to an abduction or adduction movement of the shoulder of the user,

in which the connecting parts (34, 36, 38, 310) include a connecting part (38) comprising two parts (381, 382) mounted sliding with respect to one another by means of a slideway (383), the sliding of the parts (381, 382) with respect to one another allowing shortening or lengthening of the connecting part (38) of the elbow module (4) with respect to the back module (2) during rotation of the elbow module (4) with respect to the back module (2).

The invention relates to a locking device (11) comprising at least one locking system (13) having at least one locking member (17) that can be actuated by linking means (28), the linking means being able to be moved over a defined travel, the movement of the locking means (28) over a first part of the travel enabling the locking member (17) to be actuated, alternately between an unlocked position of the locking member (17) and a locked position thereof, characterized in that the locking system (13) is designed so that the locking member (17) remains immobile during the movement of the linking means (28) over a second portion of the travel, with a view to compensating for the adjustment of the connecting means (28) and also any malpositioning of the locking system (13).