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| 20090135247 | STEREOSCOPIC CAMERA FOR RECORDING THE SURROUNDINGS - A stereoscopic camera for recording the surroundings is provided with a right and a left image sensor having one lens each to display the surroundings on the image sensors, with the image sensors and the lenses being held by a carrier side-by-side and at a distance in reference to each other. The stereoscopic camera is additionally provided with a circuit board arranged on the carrier and comprising at least the signal and the supply lines of both image sensors. The image sensors are each mounted on a carrier substrate, which similar to the lenses, are arranged on the carrier and are distanced in reference to the circuit board, and have a flexible electric connection to the circuit board. | 05-28-2009 |
| 20090244336 | IMAGE SENSING DEVICE OF A CAMERA - An image acquisition device of a camera that has an electronic sensor chip electrically connected to a circuit board, includes an objective situated in an objective carrier, and oriented in regard to situation and inclination in relation to an imager surface of the sensor chip. The situation and inclination of the objective are defined by a contact surface of the objective carrier. The contact surface of the objective carrier lies flat on the sensor chip, so that the imager surface is not covered by the contact surface. | 10-01-2009 |
| 20110080495 | METHOD AND CAMERA SYSTEM FOR THE GENERATION OF IMAGES FOR THE TRANSMISSION TO AN EXTERNAL CONTROL UNIT - A method and camera system are provided in which source images of a high resolution generated by an image sensor are processed by a processor in a way that, following a down-scaling of the resolution of the source image, an image copy is generated which can be transmitted to and processed in an external control unit. Additionally, a cropped image of a higher resolution in comparison to the image copy is created from the source image and also transmitted to the external control unit. | 04-07-2011 |
| 20110098868 | METHODS AND DEVICES FOR CONTROLLING ELECTRICAL DEVICES USING MOTION DETECTION - A method and device to control electrical devices using motion detection are presented, through which an object inside a monitoring area which is subdivided into a pre-detection area and a detection area is successively identified as well as verified in the detection area for reducing power input in standby mode and during operation in the main cycle using distance measurements and its position consequently determined. During the course of the distance measurements, the control device is brought into a readiness state and later on into operating state. After finishing the distance measurements and determining the position of the object in the detection area, an output signal which serves to control an external electrical device is generated by a control device. | 04-28-2011 |
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| 20090314234 | DEVICE FOR VARIABLY ADJUSTING THE CONTROL TIMES OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE | 12-24-2009 |
| 20100000479 | DEVICE FOR VARIABLY ADJUSTING CONTROL TIMES OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE | 01-07-2010 |
| 20100037841 | APPARATUS FOR THE VARIABLE SETTING OF THE CONTROL TIMES OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE - An apparatus for variable setting of control times of gas exchange valves of an internal combustion engine which has an outer and inner rotor rotatable relative to the former, with one component drive-connected to a crankshaft and the other drive-connected to a camshaft. The apparatus has at least one pressure space, which are each divided into two pressure chambers acting counter to one another. The apparatus has a plurality of pressure medium channels, via which pressure medium is fed to or led away from the pressure chambers. Additionally, the apparatus has a plurality of rotational-angle limitation devices assuming an unlocked and locked state. The locking states are set by the supply of pressure medium to or discharge of pressure medium from the respective rotational-angle limitation apparatus. Furthermore, a method for controlling an apparatus for variable setting of control times of gas exchange valves of an internal combustion engine is disclosed. | 02-18-2010 |
| 20100083924 | DEVICE FOR CAMSHAFT ADJUSTMENT IN AN INTERNAL COMBUSTION ENGINE - A device for camshaft adjustment in an internal combustion engine which has an inner rotor rotationally fixed to a camshaft. The inner rotor is rotationally adjustable relative to an outer rotor that is driveably connected to a crankshaft. At least one hydraulic chamber limited by side walls is introduced into the outer rotor and is divided into two partial chambers by an element extending radially outward from the inner rotor. To lock the relative movement between the inner and outer rotor, two locking pins penetrating the inner rotor axially engage in two recesses of one of the side walls designed as a locking cover. To adjust the play of the locking pins in the recesses, at least one of the recesses has a stop surface for the locking pin, the position of which changes as viewed circumferentially with the radial distance from the axis of the inner rotor. | 04-08-2010 |
| 20100241338 | MOTOR CONTROL STRATEGY FOR A HYDRAULIC CAMSHAFT ADJUSTER HAVING A MECHANICAL CENTRAL LOCK - A motor control strategy for a hydraulic camshaft adjuster. The motor control strategy has a mechanical central lock which in turn has at least one rotor and one stator, between which hydraulically loadable chamber A and chambers B are provided. Locking pistons supported in an axially displaceable manner are provided in the rotor for the mechanical central lock. A hydraulic system and an electrically controllable solenoid valve are provided The valve is powered in a controlled manner by a motor control device, which receives an “ignition off” signal; the motor being turned off, and at least one signal for current angular position of the camshaft adjuster, which compares the angular position to at least one zone definition stored in the motor control device, forms control commands from the same, and transmits the control commands to the electric solenoid valve. | 09-23-2010 |
| 20100326385 | DEVICE FOR VARIABLY ADJUSTING THE TIMING CONTROL OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE - A device for variably adjusting the timing control of gas exchange valves of an internal combustion engine. The device has a hydraulic phase adjustment device, a control valve and an auxiliary pressure source. The phase adjustment device can be brought into driving connection with a crankshaft and a camshaft, the phase adjustment device has at least two counter-working pressure chambers, and a phase relation of the camshaft relative to the crankshaft is variably adjustable by charging of the pressure chambers with pressure medium. The control valve has at least one inflow port and a first and a second working port. The inflow port is connectable to a pressure medium pump, and the first working port is connectable to the first pressure chamber and the second working port to the second pressure chamber. | 12-30-2010 |
| 20110139100 | CAMSHAFT ADJUSTMENT DEVICE FOR AN INTERNAL COMBUSTION ENGINE - A camshaft adjustment device which has a pinion and a drive part that is disposed in a pivoting manner relative thereto. The pinion and the drive part are operatively connected to each other via a pressure chamber that can be pressurized using pressure means. At least one locking device can mechanically couple the pinion and the drive part. The locking device is actuated by a pressure medium. The pressure chamber and the locking device are in a pressure medium connection to one another for regulating the pressure medium supply to the locking device and the pressure medium discharge therefrom by at least one regulating unit. The passage of the pressure medium can be blocked in a pressure-tight manner in the direction of the pressure chamber by at least one locking device disposed in the pressure medium connection. | 06-16-2011 |
| 20110162603 | DEVICE FOR VARIABLY ADJUSTING THE CONTROL TIMES OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE - A device for variably adjusting the control times of gas exchange valves of an internal combustion engine. The device has a driving element, an output element, at least one pressure chamber, at least one mechanism limiting the angle of rotation, and a pressure accumulator. A phase angle between the output and driving element is changed by delivering or discharging pressure medium to or from the pressure chambers. The mechanism limiting the angle of rotation has a receiving member and an engaging element to which a force is applied towards the receiving member ( | 07-07-2011 |
| 20110309281 | CONTROL VALVES FOR CONTROLLING PRESSURE MEDIUM FLOWS - A control valve for controlling pressure medium flows, which has a cylindrical valve housing with a housing cavity The housing cavity is open at one side and has an axial outflow port, a radial first working port, a radial second working port, a radial third working port and two radial pressure ports which each open into the housing cavity. A first pressure port is arranged axially between the first working port and the second working port, and a second pressure port is arranged axially between the second working port and the third working port. Also, the control valve has a cylindrical control piston, which is axially movable within the housing cavity and has a piston cavity open at one side in the direction of the outflow port. | 12-22-2011 |
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| 20100102738 | CIRCUIT ARRANGEMENT FOR OPERATING A VACUUM GAS DISCHARGE LAMP - A circuit arrangement for operating a low-pressure gas discharge lamp with a first and a second filament, between which a gas discharge can be formed, is provided. The circuit arrangement may include a device for generating an electrical potential which varies over time at a node, which is connected to the first filament via a first inductive element, and a half-circuit, which includes a switch, the first filament being electrically connected to the second filament when the switch of the half-circuit is closed, wherein a second inductive element is provided in the half-circuit. | 04-29-2010 |
| 20100237791 | ELECTRONIC BALLAST AND METHOD FOR OPERATING AT LEAST ONE FIRST AND SECOND DISCHARGE LAMP - An electronic ballast for operating at least two discharge lamps is provided, which may include a starting detection apparatus for detecting whether one of the discharge lamps has been started; wherein a drive circuit includes an input, which is coupled to a starting detection apparatus, wherein a threshold value entry apparatus is designed to enter a second threshold value for a setpoint value of a total current through at least two inductances, wherein the second threshold value has a smaller magnitude than a first threshold value; and wherein the drive circuit is designed to drive a first electronic switch and a second electronic switch taking into consideration the first threshold value as setpoint value prior to detection of the starting of a discharge lamp by the starting detection apparatus, and taking into consideration the second threshold value as setpoint value. | 09-23-2010 |
| 20100308740 | ELECTRONIC BALLAST AND METHOD FOR OPERATING AT LEAST ONE DISCHARGE LAMP - An electronic ballast for operating at least one discharge lamp may include an input for coupling to an input voltage; a load circuit with an output, the load circuit having a bridge circuit; an intermediate circuit capacitor that is coupled to the input of the load circuit; a transformer that is coupled between the input of the ballast and the capacitor, the transformer having a transformer switch; a control apparatus for driving the switch; and a monitoring apparatus for monitoring at least one value correlated with the input voltage, the control apparatus being designed to deactivate the driving of the switch upon detection of a deactivation criterion; and a voltage measuring apparatus for measuring the intermediate circuit voltage, the control apparatus being designed to reactivate the driving of the switch after a deactivation phase when the sum of input and intermediate circuit voltage has dropped below a prescribable threshold value. | 12-09-2010 |
| 20110047337 | METHOD AND DEVICE FOR DETECTING A STATISTICAL CHARACTERISTIC OF A LIGHTING DEVICE - The present invention relates to a method for detecting a static index of a lighting device ( | 02-24-2011 |
| 20120043898 | ELECTRONIC BALLAST AND METHOD FOR OPERATION OF AT LEAST ONE DISCHARGE LAMP - Various embodiments provide an electronic ballast for operation of at least one discharge lamp, with the electronic ballast having an apparatus for power factor correction with a voltage converter. The voltage converter itself includes an inductance, a diode and a switch. A control apparatus, which produces a square-wave signal as a control signal to the switch of the apparatus for power factor correction, includes an I regulator. This produces a first component of the on time of the control signal. In order to react to short-term power demands in the load circuit for example on ignition of the discharge lamp, an electronic ballast furthermore may include a power determining apparatus, which is coupled to the control apparatus, with the control apparatus being designed to vary the control signal as a function of the power consumed in the discharge lamp. | 02-23-2012 |
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| 20090096390 | Electronic Ballast and Method for Operating an Electrical Lamp - An electronic ballast for an electrical lamp ( | 04-16-2009 |
| 20100045201 | Circuit Arrangement and Method for Striking a Discharge Lamp - A circuit arrangement for striking a discharge lamp, comprising: a drive apparatus, having an output adapted to provide a drive signal with a predeterminable frequency; an inverter, which is coupled to the output of the drive apparatus, and having an output adapted to provide a square-wave signal with a predeterminable duty factor; a load circuit, which is coupled to the output of the inverter and has at least one terminal for the discharge lamp, the load circuit comprising a lamp inductor, which is coupled in series between the output of the inverter and the at least one terminal for the discharge lamp; a first control loop with a first reference variable, a first manipulated variable and a first controlled variable, the first control loop having a first time constant; a second control loop with a second reference variable, an auxiliary manipulated variable and a second controlled variable, the second control loop having a second time constant; and a strike detection apparatus, which is adapted to detect striking of the discharge lamp and, after detection of the striking to switch over the first and the second control loops from the striking operation mode to the continuous operation mode. The auxiliary manipulated variable of the second control loop represents the first reference variable of the first control loop, the first time constant being smaller than the second time constant by at least a factor of 10, and the first manipulated variable represents the duty factor of the output signal of the inverter. | 02-25-2010 |
| 20100156299 | Ballast for a Discharge Lamp With Adaptive Preheating - The present invention relates to an electronic ballast for discharge lamps (LA) which have preheatable electrodes (E | 06-24-2010 |
