Abstract: A safety laser scanner for securing the surroundings of at least one object has a first safety laser scanner with which a first defined reference target is associated and a second safety laser scanner with which a second defined reference target is associated. Each safety laser scanner includes: a light transmitter; a light deflection unit for a periodic deflection of the light into a scanning plane; a receiver for providing received signals in dependence on light remitted at articles present in the field of vision of the scanner; and an evaluation unit for evaluating the received signals with respect to the angle and the distance of the article and for providing a safety signal. Furthermore, the scanning planes of both scanners are aligned in a coplanar manner and the first scanner forms the second reference target and the second scanner forms the first reference target.

Abstract: An electronic device is equipped with an oscillator interface to be coupled to an oscillator crystal of an oscillator element. The electronic device includes an oscillator circuit which is coupled to the oscillator interface and generates an oscillator signal. The electronic device is further provided with a temperature measurement interface to be coupled to a temperature sensor of the oscillator element so as to receive the temperature signal. For accomplishing temperature compensation, the electronic device is provided with a measurement controller coupled to the measurement interface and configured to measure a first value of the temperature signal at a first point of time and a second value of the temperature signal at a second point of time. A frequency drift estimator is provided so as to estimate a frequency drift of the oscillator signal on the basis of the first value of the temperature signal and a second value of the temperature signal.

Abstract: The excursion of a loudspeaker cone is estimated using a reference signal in one example, a primary signal, produced by a cone of a loudspeaker, is received and a reference signal produced simultaneously with the primary signal by the loudspeaker cone is received. The reference signal causes an excursion of the loudspeaker cone that is amplitude modulated by the excursion caused by the primary signal. An amplitude modulation of the reference signal is determined and an excursion of the loudspeaker cone is determined using the determined amplitude modulation.

Abstract: A method of monitoring a hazardous zone (2) and a safe optoelectronic distance sensor (1) for monitoring a hazardous zone (2) at a movable machine part (3) having a protected zone (4), wherein the safe distance sensor (1) is arranged at the movable machine part (3), wherein a tool (5) is arranged at the movable machine part (3), wherein a plurality of distance sensors (1) are arranged in a modular manner and wherein the protected zone (4) is adapted to the tool (5).

Abstract: A method for determining an image rejection characteristic of a receiver within a transceiver is provided. The transceiver uses a common local oscillator. The method includes generating a test signal having a spectral peak and generating a local oscillator signal comprising a frequency with an offset from a center frequency of the spectral peak. Further, the method includes down-mixing the test signal in the receiver using the local oscillator signal to generate a down-mixed signal. The method further includes calculating a first value of a signal characteristic of the down-mixed signal in a first frequency range corresponding to a desired signal component of the down-mixed signal and calculating a second value of the signal characteristic of the down-mixed signal in a second frequency range corresponding to an undesired signal component of the down-mixed signal. Further, the method includes comparing the first value and the second value to generate the image rejection characteristic.

Abstract: The excursion of a loudspeaker cone is estimated using a reference signal in one example, a primary signal, produced by a cone of a loudspeaker, is received and a reference signal produced simultaneously with the primary signal by the loudspeaker cone is received. The reference signal causes an excursion of the loudspeaker cone that is amplitude modulated by the excursion caused by the primary signal. An amplitude modulation of the reference signal is determined and an excursion of the loudspeaker cone is determined using the determined amplitude modulation.

Abstract: Representative implementations of devices and techniques provide a built-in self-test for a RF communication device. The communication device self-generates a test signal and processes the test signal through the communication device to determine an operational state of the communication device.

Abstract: An optoelectronic sensor (10) for detecting objects in a monitored zone (20) is provided which has the following: a front screen (38); a light transmitter (12) for transmitting a light beam (16); a movable deflection unit (18) for the periodic sampling of the monitored zone (20) by the light beam (16); a light receiver (26) for generating a received signal from the light beam (22) remitted by the objects; at least one test light transmitter (42); at least one test light transmitter (42), at least one test light receiver (44) and at least one test light reflector (48) which span a test light path (46a-b) through the front screen (38); and an evaluation unit (32) which is configured to acquire pieces of information on the objects in the monitored zone (20) from the received signal and to recognize an impaired light permeability of the front screen (38) from a test light signal which the test light receiver (44) generates from test light which is transmitted from the test light transmitter (42) and which is refl

Abstract: Systems and methods implementing dithered hysteretic current control are discussed. One system can include a switched-mode power supply, a control component, and a dither component. The control component can detect a crossing of a first threshold associated with a first mode of the switched-mode power supply, and generate first and second control signals, wherein the first control signal is based on the crossing of the first threshold. The dither component can receive the first control signal, delay the first control signal for a first random time period, and output the first control signal to the switched-mode power supply. The switched-mode power supply can receive the first control signal and the second control signal, switch from the first mode to a second mode based on the first control signal, and switch from the second mode to the first mode based on the second control signal.

Abstract: A laser scanner (10) is provided which has a light transmitter (12) for transmitting a light signal (16) into a monitored zone (20), a light receiver (26) for generating a received signal from the light signal (22) remitted by objects in the monitored zone (20), a movable deflection unit (18) for the periodic deflection of the light signal (16, 22) to scan the monitored zone (20) in the course of the movement, and an evaluation unit (34) for detecting the objects with reference to the received signal and for testing the signal path from the transmission of the light signal (16) up to the detection of the objects. In this respect, the evaluation unit (34) is configured also to detect objects in angular positions of the deflection unit (18) in which the signal path is tested.

Abstract: An integrated circuit has a clock subsystem, and a circuit. The clock subsystem is configured to provide a reference clock signal to a first module and a second module. The circuit is configured to distribute information describing characteristics of the reference clock signal to the second module. The information distributed with the circuit enables the second module to adapt the reference clock signal based on the information.

Abstract: An optoelectronic sensor for the distance measurement of objects (2) in a monitored zone (4) using a time of flight method, having a light receiver (5) for receiving light from the monitored zone (4) and for outputting received signals (10), and having an evaluation unit (12) for determining the time of flight from the received signals (10), wherein the light receiver (5) is an image sensor (6) having a plurality of light reception elements (8) which are arranged in a planar manner in a matrix, wherein a first optical element (14) is arranged in front of at least one light reception element (8), with the first optical element (14) having a filter element (18) of a filter array (24), wherein at least respective first filter elements (20) and at least respective second filter elements (22) have different optical attenuations and/or the first optical element (14) has a lens (28) of a fly's eye optics (26), with the fly's eye optics (26) having a plurality of lenses (28), with a respective lens (28) being associa

Abstract: An electronic device is equipped with an oscillator interface to be coupled to an oscillator crystal of an oscillator element. The electronic device includes an oscillator circuit which is coupled to the oscillator interface and generates an oscillator signal. The electronic device is further provided with a temperature measurement interface to be coupled to a temperature sensor of the oscillator element so as to receive the temperature signal. For accomplishing temperature compensation, the electronic device is provided with a measurement controller coupled to the measurement interface and configured to measure a first value of the temperature signal at a first point of time and a second value of the temperature signal at a second point of time. A frequency drift estimator is provided so as to estimate a frequency drift of the oscillator signal on the basis of the first value of the temperature signal and a second value of the temperature signal.

Abstract: A safety laser scanner for securing the surroundings of at least one object has a first safety laser scanner with which a first defined reference target is associated and a second safety laser scanner with which a second defined reference target is associated. Each safety laser scanner includes: a light transmitter; a light deflection unit for a periodic deflection of the light into a scanning plane; a receiver for providing received signals in dependence on light remitted at articles present in the field of vision of the scanner; and an evaluation unit for evaluating the received signals with respect to the angle and the distance of the article and for providing a safety signal. Furthermore, the scanning planes of both scanners are aligned in a coplanar manner and the first scanner forms the second reference target and the second scanner forms the first reference target.

Abstract: A system utilizing time tracking is disclosed. The system includes a real time clock, a time component, and a controller. The real time clock is configured to track time. The time component is configured to measure a time value without an additional power source. The controller is configured to determine an elapsed time using the time value and calibration information and to update the real time clock using the elapsed time in a restart mode.

Abstract: Representative implementations of devices and techniques provide a built-in self-test for a RF communication device. The communication device self-generates a test signal and processes the test signal through the communication device to determine an operational state of the communication device.

Abstract: A laser scanner (10) is provided which has a light transmitter (12) for transmitting a light signal (16) into a monitored zone (20), a light receiver (26) for generating a received signal from the light signal (22) remitted by objects in the monitored zone (20), a movable deflection unit (18) for the periodic deflection of the light signal (16, 22) to scan the monitored zone (20) in the course of the movement, and an evaluation unit (34) for detecting the objects with reference to the received signal and for testing the signal path from the transmission of the light signal (16) up to the detection of the objects. In this respect, the evaluation unit (34) is configured also to detect objects in angular positions of the deflection unit (18) in which the signal path is tested.

Abstract: Method and apparatuses involving satellite position signals are disclosed. Based on data indicating a usage environment, parameters, for example acquisition parameters or calculation parameters, are adapted.

Abstract: An audio output device is described comprising a speaker; an audio output circuit configured to receive a first audio signal and configured to supply the first audio signal and a second audio signal to the speaker, wherein the second audio signal comprises a higher frequency than the first audio signal; a microphone configured to receive an acoustic signal from the speaker in response to the first audio signal and the second audio signal and to convert the acoustic signal into a received audio signal and a determiner configured to determine a phase of a frequency component of the received audio signal corresponding to the second audio signal and to determine an excursion of the speaker by the first audio signal based on the phase.

Abstract: A distance measuring sensor (10) for a detection and distance determination of objects (18) in a monitoring area, the sensor (10) having a transmitter (12) for transmitting transmission pulses, a receiver (20) for generating a reception signal from transmission pulses remitted from the monitoring area, an A/D converter (38) for digitizing the reception signal, and a control and evaluation unit (28, 30), which is configured to transmit a plurality of transmission pulses via the transmitter (12), to accumulate the respective reception signals generated by the receiver (20) in a histogram (110), and to determine, from the histogram (110), a reception point in time and thus a measurement value for the signal time of flight from the sensor (10) to the object (18), wherein the sensor (10) comprises a noise generator (40) configured to add a noise signal to the reception signal prior to its digitization in the A/D converter (38).