Conti Temic Microelectronic Gmbh

Daimler-benz Ag

Astrium Gmbh

Temic Telefunken Microelectronic Gmbh

Daimler-benz Aerospace Ag

Helmut Riedel

Willi Platz

Gerald Sobotta

Thomas Fechner

Dieter Krökel

Robert Thiel

Michael Feil

Karl Hofmann

Guenther Fendt

Siegfried Craubner

Josef Baerenweiler

Fank Ansorge

Holger Grunleithner

Willy Platz

The invention relates to a method for determining a speed of a vehicle (), whereby at least two images (A, B) of an area surrounding the vehicle are recorded in time succession using a camera on the vehicle (), and between the images (A, B) changes () in a position and/or a size of at least one object (X) contained in the images (X) are determined, and from the changes, a speed of the vehicle () is determined relative to the object (X).

Method and device for determining the speed of a vehicle

From a prescribed starting value, the emitting power of an obstacle detection beam increases or decreases according to a prescribed function at a prescribed rate. The received signal reflected from an obstacle is compared to a prescribed threshold. Once the received reflected power rises or falls to the threshold, the emitting power is not further increased or decreased respectively, but is maintained constant. Thereby, consumed and dissipated power is reduced, unnecessary excessive power use is avoided, and the detection range of the obstacle detection beam is adapted to the prevailing situation.

Method of operating an active obstacle warning system

The focal surface for an opto-electronic imaging system includes an arrangement of detectors for image recording and a detector carrier or a FPA carrier for holding the detectors. The detectors are each made of at least one solid state element that is bonded to a flexible carrier substrate. The focal surface, or the detectors, respectively, exhibits a curvature, such that a curved field of view can be recorded. In a method for manufacturing a focal surface for opto-electronic imaging systems, at least one solid state element is bonded to a flexible carrier substrate to form flexible detectors, whereby a detector carrier provides a curvature and the flexible detectors are adapted to the curvature of the detector carrier. To manufacture a detector according to the present invention, a solid state element is thinned and bonded to a flexible carrier substrate, such that it is formed in a flexible manner and can be adapted to a curvature of a field of view. An opto-electronic imaging system according to the present invention with front optics for capturing an image and a detector arrangement that is arranged in a focal surface of the front optics, in which the detector arrangement is arranged in the focal surface in a curved manner.

Focal surface and detector for opto-electronic imaging systems, manufacturing method and opto-electronic imaging system

An arrangement and method for processing a signal field of sensor signals which originate from the individual sensor elements, for example photodetectors, of a plurality of sensor elements which are regularly spaced in an area and which are each surrounded by six adjacent sensor elements while forming a hexagonal structure. A differential amplifier compares a quantity representing the potential difference and a reference quantity forms a switching quantity (I.sub.Mo) on the output side. A switching comparator, on the input side, receives the switching quantity and, if this switching quantity exceeds the preselectable switching threshold, on the output side emits a switching pulse which causes the 'off' switching condition. Four signal outputs 1, 2, 3, 4 as well as four signal inputs (I.sub.M1 I.sub.M2, I.sub.M3, I.sub.M4) are each connected with a signal input and a signal output of one of the four analog circuits assigned to the four next adjacent switchable resistors, one signal respectively being supplied to the four signal outputs which represents the switching quantity. A switching stage for forming the reference quantity takes into account the signals present at the four signal inputs.

Sensor element array and method for signal or image processing

The invention relates to analog circuits which are constructed as fed-back amplifier networks. The networking is implemented such that the output values of the individual amplifier elements are fed back to the input values of the respective adjacent amplifier elements. The degree of feedback can be statically and dynamically adjusted according to the specific application. Two-dimensional networks with such an architecture can be used, for example, in image processing for the interference reduction under real-time conditions.

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Fuerstenfeldbruck, Germany

Helmut Riedel