Abstract: An odorant and flavoring formulation for topical application comprising, as matrix former, a mixture of at least one water-insoluble polymer from the group of homo- or co-polymers of C1-C4-carboxylic acid vinyl esters and at least one water-soluble polymer from the group of homo- or copolymers of N-vinyllactams.

Abstract: An optically clear, solid water-soluble formulation of odorants and flavorings comprising at least one synthetically prepared odorant and flavoring, in which the odorants and flavorings are embedded homogeneously in a polymer matrix based on polyvinyllactams.

Abstract: An acoustic sensor including an electroacoustic transducer and an electrical conductor. The electroacoustic transducer includes a plate-shaped transducer element, which is configured to output an acoustic signal when it is excited by the electrical signal. The electroacoustic transducer furthermore includes a first contacting, which is situated on at least one of the surfaces of the plate-shaped transducer element in such a way that it has at least one portion which ends flush with the outer circumference of the first or second surface of the plate-shaped transducer element, or extends at least partially outside the outer circumference of the first or second surface of the plate-shaped transducer element. The electrical conductor includes a contact area in contact with an outer circumference of the first contacting, the contact area of the electrical conductor being situated in a plane defined by the first surface, outside an area which overlaps with the electroacoustic transducer.

Abstract: An acoustic sensor for emitting and/or receiving acoustic signals includes a diaphragm having a first surface and a second surface forming oppositely situated sides of the diaphragm and defining a common surface perimeter by their edge, a housing that carries the diaphragm and restricts an expansion of the surface perimeter of the diaphragm during an operation of the acoustic sensor, and a first electroacoustic transducer disposed in a first subsection of the first surface of the diaphragm, the first subsection being outside of a center of the first surface of the diaphragm.

Abstract: An ultrasonic sensor has: a diaphragm that includes at least two partial regions for emitting and/or receiving ultrasonic signals, the two partial regions possessing different resonance characteristics; and at least one electromechanical transducer coupled to the diaphragm, to which transducer a control signal having at least two different control signal frequencies is applied. In this context, a first control signal frequency is in the range of a resonant frequency of a first partial region of the diaphragm, and a second control signal frequency is in the range of a resonant frequency of a second partial region of the diaphragm. Alternatively, two electromechanical transducers are used, which are coupled to a diaphragm and have different resonance characteristics.

Abstract: An acoustic sensor, including a carrier element, a diaphragm element, which is situated on a first side of the carrier element, and an electroacoustic transducer, which is situated on a side of the diaphragm element facing the carrier element and is configured to induce at least a region of the diaphragm element to vibrate; at at least an edge region, the diaphragm element having a retaining region, which extends in the direction of the carrier element and embraces a subregion of the carrier element.

Abstract: A method in a driver assistance system of a vehicle for detecting an object in the surroundings of the vehicle. The method has the following steps: emission of at least one measuring pulse by a transmitter; reception of a reflection of the measuring pulse by at least one receiver; determination of a Doppler shift between the emitted measuring pulse and the received reflection in an analysis unit; and determination of a direction toward the object based on the determined Doppler shift.

Abstract: A sound transducer, including a diaphragm and at least one piezoactuator, which is situated in an operative connection to the diaphragm, the oscillation direction of the piezoactuator being situated at least generally perpendicularly in relation to the oscillation direction of the diaphragm, at least one lever element being situated between the diaphragm and the piezoactuator, which connects the diaphragm to the piezoactuator and is designed to convert oscillations of the piezoactuator into oscillations of the diaphragm and vice versa, and a clamp connection being formed between the at least one lever element, and the piezoactuator. The clamp connection is formed between an end face of the piezoactuator situated in the oscillation direction of the piezoactuator and the at least one lever element, and the piezoactuator is situated under an axial pre-tension force extending in the oscillation direction of the piezoactuator by the at least one lever element.

Abstract: A method for amplifying an echo signal, in which an analog echo signal suitable for detection of a vehicle's surroundings is amplified by a gain dependent on the transit time of the echo signal, the analog echo signal being amplified by an amplifier having a plurality of outputs, each having a different gain, and a downstream A/D converter having a time-variable reference voltage. In the process, there is a switch between the different outputs of the amplifier at predefined switching points in time, and the reference voltage of the A/D converter varies over time between the switching points in time in such a way that the echo signal is present at the output of the A/D converter with a transit time-dependent total gain having a predefined characteristic.

Abstract: A method for sensing the surroundings of a vehicle with a number of sensors, in which method during at least one echo cycle at least one echo information item about the surroundings is sensed by at least one sensor and is compressed using an algorithm, and in which the at least one compressed echo information item is transferred to at least one processing unit.

Abstract: An ultrasonic measuring system is described for detecting an obstacle using a resonant transducer element for transmitting an ultrasonic pulse and for generating a received signal which includes the ultrasonic echo pulse reflected from the obstacle, the transducer element generating a decay signal having its resonance frequency after transmitting an ultrasonic pulse. The ultrasonic measuring system includes an evaluation unit having a control unit which is designed to activate the transducer element for transmitting the ultrasonic pulse with the aid of a frequency-modulated transmitted signal generated by the control unit, the frequency modulation taking place with the aid of a modulation signal in such a way that the signature of the ultrasonic pulse differs from that of the decay signal.

Abstract: In a method for determining the position and/or the movement of at least one object in the surroundings of a vehicle with the aid of at least one transmitted acoustic signal, the time behavior of at least one electrical signal of an electroacoustic transducer during the transmission of the acoustic signal and/or during a decay of the electroacoustic transducer following the transmission and/or during the reception of the acoustic signal reflected on the object is analyzed at least during a suitable fraction of a signal period in such a way that changes of the electrical signal of the electroacoustic transducer is detected.

Abstract: An ultrasonic measurement apparatus is described having a receiving device which determines a measurement sequence relating to a time variation of the period lengths of an ultrasonic signal received from an in-vehicle and/or external ultrasonic transmitter, a comparison device which determines a comparison information item relating to a deviation of the determined measurement sequence from at least one reference sequence, and an evaluation device which determines, taking into consideration the determined comparison information item, an information item relating to a signal form transmitted by the ultrasonic transmitter, a relative speed between the receiving device and the ultrasonic transmitter, a relative speed of at least one reflecting object situated in a transmission path between the receiving device and the ultrasonic transmitter, and/or a shape feature of the at least one reflecting object. A method for evaluating an ultrasonic signal is also described.

Abstract: A camera for a vehicle, in particular for monitoring the exterior environment. The camera having: an imager having a plurality of pixels, having different imager regions for different object distances, and an objective situated before the imager. Between the objective and the imager there is provided an additional optical unit that has in particular optical microelements, e.g., microlenses, the additional optical unit having different imaging properties for the imager regions of the imager, in particular for the compensation of different object distances and/or image distances.

Abstract: In a method for determining the position and/or the movement of an object in the vicinity of a vehicle, received echo signals that have been reflected off of the object are each amplified by an amplification that is dependent on the propagation delay of the corresponding echo signal, and amplified echo signals of a plurality of measuring channels are each converted into a value-discretized and/or time-discretized measurement signal having a predefined, first dynamic range; and the measurement signals, which each have the first dynamic range, are mapped onto a second dynamic range of a processing device that is larger than the first dynamic range, in a way that allows them to be at least periodically simultaneously processed by the processing device.

Abstract: In a method for determining the position and/or the movement of at least one object in the surroundings of a vehicle with the aid of at least one transmitted acoustic signal, the time behavior of at least one electrical signal of an electroacoustic transducer during the transmission of the acoustic signal and/or during a decay of the electroacoustic transducer following the transmission and/or during the reception of the acoustic signal reflected on the object is analyzed at least during a suitable fraction of a signal period in such a way that changes of the electrical signal of the electroacoustic transducer is detected.

Abstract: A method for amplifying an echo signal, in which an analog echo signal suitable for detection of a vehicle's surroundings is amplified by a gain dependent on the transit time of the echo signal, the analog echo signal being amplified by an amplifier having a plurality of outputs, each having a different gain, and a downstream A/D converter having a time-variable reference voltage. In the process, there is a switch between the different outputs of the amplifier at predefined switching points in time, and the reference voltage of the A/D converter varies over time between the switching points in time in such a way that the echo signal is present at the output of the A/D converter with a transit time-dependent total gain having a predefined characteristic.

Abstract: Formulations of sparingly water-soluble active ingredients, consisting of carrier particles provided with active ingredient-containing coatings, the sparingly soluble active ingredients being embedded in coatings composed of amphiphilic copolymers.

Abstract: A camera system for a motor vehicle includes: a camera, which includes an image sensor for outputting image signals, and camera optics for detecting a first environment and for imaging the first environment on the image sensor at a first subject distance. The camera system has camera supplementary optics, which are at least partially provided in the optical path in front of the camera optics, the camera optics and the camera supplementary optics jointly forming an optics system by which a second environment, e.g., a region of a surface of a window, is able to be imaged or focused on the image sensor at a second object distance that differs from the first object distance.

Abstract: An ultrasonic measuring system is described for detecting an obstacle using a resonant transducer element for transmitting an ultrasonic pulse and for generating a received signal which includes the ultrasonic echo pulse reflected from the obstacle, the transducer element generating a decay signal having its resonance frequency after transmitting an ultrasonic pulse. The ultrasonic measuring system includes an evaluation unit having a control unit which is designed to activate the transducer element for transmitting the ultrasonic pulse with the aid of a frequency-modulated transmitted signal generated by the control unit, the frequency modulation taking place with the aid of a modulation signal in such a way that the to signature of the ultrasonic pulse differs from that of the decay signal.