Abstract: Methods, systems, and computer programs are presented for time-keying a transmit/receive switching signal. One method includes an operation for receiving, by a compensator, an input signal comprising a pilot tone signal and an operating signal. Further, the method includes operations for detecting a transmit period based on the pilot tone signal, and measuring a pilot tone gap within the transmit period where the pilot tone signal is off. The method further includes generating an internal transmit-on signal based on the pilot tone signal. The internal transmit-on signal is active during the pilot tone gap to keep the compensator in transmit mode during the pilot tone gap. Further, the output power level of the compensator is adjusted based on the pilot tone gap.

Abstract: Exemplary embodiments are disclosed of current control circuits and methods of modulating supply current from a first device (e.g., a telematics control unit (TCU), etc.) to one or more second devices (e.g., one or more compensators, etc.). In an exemplary embodiment, a method includes modulating a supply current from a first device to a second device into different current values for reporting different information from the second device to the first device. An exemplary embodiment of a current control circuit includes a variable voltage source electrically coupled with a current source and a current sink. The current control circuit is configured to modulate the supply current from a first device to the second device into different current values for reporting different information from the second device to the first device.

Abstract: Exemplary embodiments are disclosed of current control circuits and methods of modulating supply current from a first device (e.g., a telematics control unit (TCU), etc.) to one or more second devices (e.g., one or more compensators, etc.). In an exemplary embodiment, a method includes modulating a supply current from a first device to a second device into different current values for reporting different information from the second device to the first device. An exemplary embodiment of a current control circuit includes a variable voltage source electrically coupled with a current source and a current sink. The current control circuit is configured to modulate the supply current from a first device to the second device into different current values for reporting different information from the second device to the first device.

Abstract: Exemplary embodiments are disclosed of methods and systems of power detection in RE circuits to provide gain compensation for vehicle systems. In exemplary embodiments, a module (e.g., a front end module (FEM), compensor, compensator, etc.) includes a gain modifier, a power detector, and a controller. The power detector is configured to detect a power output of the gain modifier. The controller is configured to determine a mean of n samples taken by the power detector. The controller is also configured to determine a boundary to mean ratio of the n samples. The controller is further configured to adjust a detected value of the power detector based on the mean and the boundary to mean ratio.

Abstract: This disclosure provides operating units for a medical apparatus having a driven movable element comprising a fixing device for being fixed to the movable element, an actuating element, a signal processing device, at least one actuation sensor for detecting an actuation of the actuating element in at least one predetermined actuation axis (B1??B1+, B2??B2+), wherein the actuation sensor is adapted to supply an actuation signal depending on a direction of actuation (B1?, B1+, B2?, B2+) in the actuation axis (B1??B1+, B2??B2+) to the signal processing device and at least one direction sensor for outputting a direction signal. The signal processing device is adapted to align an actuation coordinate system according to the direction signal such that the direction of movement is equal to the direction of actuation (B1??B1+, B2??B2+), and to supply a control signal according to the actuation signal in the aligned actuation coordinate system to a control device of the medical apparatus.

Abstract: This disclosure provides operating units for a medical apparatus having a driven movable element comprising a fixing device for being fixed to the movable element, an actuating element, a signal processing device, at least one actuation sensor for detecting an actuation of the actuating element in at least one predetermined actuation axis (B1?-B1+, B2?-B2+), wherein the actuation sensor is adapted to supply an actuation signal depending on a direction of actuation (B1?, B1+, B2?, B2+) in the actuation axis (B1?-B1+, B2?-B2+) to the signal processing device and at least one direction sensor for outputting a direction signal. The signal processing device is adapted to align an actuation coordinate system according to the direction signal such that the direction of movement is equal to the direction of actuation (B1?-B1+, B2?-B2+), and to supply a control signal according to the actuation signal in the aligned actuation coordinate system to a control device of the medical apparatus.

Abstract: A method for actuating a friction clutch, in particular for a motor vehicle drivetrain. The friction clutch is acted on with a clutch pressure generated by a hydraulic actuator arrangement which has an electrically actuable fluid source and which has a hydraulic actuator whose state is characterized by an actuator actual value. The actuator actual value is related to the clutch pressure. The method has the steps: forming a regulation-oriented model of the actuator arrangement, which model has at least one fluid source actuating variable as an input and at least the actuator actual value as a flat output and which model can be inverted; forming an inverse model of the actuator arrangement; and inputting an actuator nominal value into the inverse model and using the model actuating variable which emerges therefrom for actuating the fluid source.

Abstract: A method for setting the engagement point of a friction clutch of a multi-step transmission for a motor vehicle. The friction clutch can be activated, controlled, by means of a clutch actuator. A set point value of the clutch actuator is set for the engagement point of the friction clutch as a function of a time profile of a physical variable which occurs starting from a transition state after activation of the friction clutch to a transition value. An electric machine is connected to the multi-step transmission. Influencing of the multi-step transmission by the electric machine is taken into account in the setting of the engagement point of the friction clutch.

Abstract: A method for activating a clutch of a vehicle drive train. A controller of an electronic control unit generates an electrical desired-value signal corresponding to a desired pressure with which the clutch is to be acted upon. The control unit receives from a sensor an electrical actual-value signal which is to correspond to an actual pressure with which the clutch is acted upon. The sensor measures the pressure at a measurement location which is connected via a transfer link to an action location at which the clutch is acted upon with a clutch pressure. The actual-value signal passes through a transfer element having a delay property before it is delivered to the controller.

Abstract: A method for actuating a friction clutch, in particular for a motor vehicle drivetrain. The friction clutch is acted on with a clutch pressure generated by a hydraulic actuator arrangement which has an electrically actuable fluid source and which has a hydraulic actuator whose state is characterized by an actuator actual value. The actuator actual value is related to the clutch pressure. The method has the steps: forming a regulation-oriented model of the actuator arrangement, which model has at least one fluid source actuating variable as an input and at least the actuator actual value as a flat output and which model can be inverted; forming an inverse model of the actuator arrangement; and inputting an actuator nominal value into the inverse model and using the model actuating variable which emerges therefrom for actuating the fluid source.

Abstract: A method for setting the engagement point of a friction clutch of a multi-step transmission for a motor vehicle. The friction clutch can be activated, controlled, by means of a clutch actuator. A set point value of the clutch actuator is set for the engagement point of the friction clutch as a function of a time profile of a physical variable which occurs starting from a transition state after activation of the friction clutch to a transition value. An electric machine is connected to the multi-step transmission. Influencing of the multi-step transmission by the electric machine is taken into account in the setting of the engagement point of the friction clutch.

Abstract: The invention relates to an operating table having a support column and a table panel mounted on the support column. In order to facilitate improve monitoring of a patient on the table panel, the operating table has a force measurement system for determining the weight of the table panel and of the patient on the table panel.

Abstract: A method for activating a clutch of a vehicle drive train. A controller of an electronic control unit generates an electrical desired-value signal corresponding to a desired pressure with which the clutch is to be acted upon. The control unit receives from a sensor an electrical actual-value signal which is to correspond to an actual pressure with which the clutch is acted upon. The sensor measures the pressure at a measurement location which is connected via a transfer link to an action location at which the clutch is acted upon with a clutch pressure. The actual-value signal passes through a transfer element having a delay property before it is delivered to the controller.

Abstract: The invention relates to an operating table having a support column and a table panel mounted on the support column. In order to facilitate improve monitoring of a patient on the table panel, the operating table has a force measurement system for determining the weight of the table panel and of the patient on the table panel.

Abstract: The invention relates to a display tube comprising an envelope portion 2 having an inner surface provided with a first electrically conductive layer 7 and a faceplate 1 having an inner surface provided with a second electrically conductive layer 8, which faceplate 1 is secured to the envelope portion 2 at a sealing edge 15, and further comprising a contacting layer 33 which is deposited in an area partially overlapping the first electrically conductive layer 7 and the second electrically conductive layer 8 in order to electrically connect said first electrically conductive layer 7 to said second electrically conductive layer 8.

Abstract: A hardness tester having a frame and a rotatable turret movably supported on the frame is provided. A plurality of load cells are fixedly mountable on the turret, and a plurality of indenters are fixedly attachable to the load cells, respectively. A user interface selectively provides signals to a motor to move the turret into contact with a test specimen via one of the indenters to thereby apply a load on the test specimen. The indenters are fixed with respect to the turret and do not move in relation to the turret when the turret is brought down to bear on the test specimen. The load cells measure the load applied to the test specimen. A closed loop control system receives load measurement signals from the load cells and controls movement of the turret, preventing the motor from applying load in excess of a predetermined selectable load amount input by a user via the user interface. The invention preferably includes a plurality of indenter adapters, each attached to respective undersides of the load cells.