Rohde & Schwarz Patente

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The present invention provides a testing system (1, 60) for a video and audio reproduction system (100, 101), the testing system (1, 60) comprising a data source (2), comprising video and audio data (3, 61) for reproduction by the video and audio reproduction system (100, 101), the video and audio data (3, 61) comprising unique marks (5, 65 - 67, 7, 46 - 53, 71 - 73) in every video frame (4, 30 - 37, 62 - 64) and every audio frame (6, 38 - 45, 68 - 70), a recording unit (8, 74), configured to record a video stream (9, 77) and an audio stream (10, 78) generated by the video and audio reproduction system (100, 101) based on the video and audio data (3, 61), and a test processor (11, 79), configured to extract the unique marks (5, 65 - 67, 7, 46 - 53, 71 - 73) from the recorded video stream (9, 77) and the recorded audio stream (10, 78), and to verify if respective unique marks (5, 65 - 67, 7, 46 - 53, 71 - 73) of simultaneous video frames (4, 30 - 37, 62 - 64) and audio frames (6, 38 - 45, 68 - 70) have been recorded by the recording unit (8, 74) simultaneously. Furthermore, the present invention provides a testing method, a computer program product, and a non-transitory computer readable data carrier.

A passive cooling module (1) having a shape adapted to be assembled with one or more passive cooling modules having a matching shape to form a cooling structure, said passive cooling module (1) comprising a base plate (2) to receive heat from at least one heat generating element (3) attached to said base plate (2), wherein heat sink elements (4) are connected to said base plate (2) to transfer heat from said base plate (2) to a surrounding fluid.

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The present invention provides an amplifier arrangement (100, 200) for amplifying a broadband signal (101, 201), the amplifier arrangement (100, 200) comprising a signal splitter (102, 202) configured to receive the broadband signal (101, 201) and output a first split signal (103, 203) and a second split signal (104, 204), and a balanced amplifier (105, 205) that is coupled to the signal splitter (102, 202) and is configured to amplify the first split signal (103, 203) and the second split signal (104, 204) and is configured to output a single amplified broadband signal (107, 207) based on the amplified first split signal (103, 203) and the amplified second split signal (104, 204). The present invention further provides a respective method.

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A measurement apparatus (1) comprising a high frequency measurement unit (2) adapted to measure high frequency parameters (HFP) of a device under test (DUT) connected to ports of said measurement apparatus (1) and a multimeter unit (3) adapted to measure DC characteristics parameters (DCP) of said device under test (DUT) connected via control signal lines (CL) to a control bus interface (6) of said measurement apparatus (1).

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The present invention provides an over the air, OTA, power sensor (1, 20, 50) for measuring power of a wireless signal (2, 21) with at least two different polarizations, the OTA power sensor (1, 20, 50) comprising a first power sensor (3, 4, 22, 23, 51, 52) for every polarization, every power sensor comprising a signal detector (5, 6, 25, 26, 27) for detecting the wireless signal (2, 21), wherein the signal detectors (5, 6, 25, 26, 27) are single polarized and wherein the polarization planes (7, 8, 28 - 30) of the signal detectors (5, 6, 25, 26, 27) are arranged at an angle of more than zero degree to each other and wherein the main radiation vectors (9, 10, 31 - 33) of the signal detectors (5, 6, 25, 26, 27) are parallel to each other, and the first power sensors (3, 4, 22, 23, 51, 52) each comprising a power measurement device (11, 12, 43 - 45), which is configured to measure the power of the detected wireless signal (2, 21) and output a respective measurement signal (13, 14, 46 - 48, 55 - 58). Further, the present patent application provides a respective method.

A measuring system (10) for measuring properties of a device under test (14) over the air comprises an antenna array (13), adapted to receive first measuring signals from the device under test (14), a measuring device (12) adapted to process the first measuring signals received by the antenna array (13), and to generate second measuring signals and transmit them to the device under test (14), using the antenna array. The measuring device (12) comprises a quiet zone generator, which is adapted to perform a beamforming of the first measuring signals after reception by the antenna array. It is preferably also adapted to perform a beamforming on the second measuring signals before transmission by the antenna array. The quiet zone generator is adapted to apply the beamforming, so that at least one adjustable quiet zone (11, 11a, 11b, 11c) is achieved.

A measuring device for phase-coherent analysis of frequency-hopping signals is provided. The measuring device comprises a signal acquisition unit and an analyzing unit. Whereas the signal acquisition unit is configured to obtain an In-phase/Quadrature-phase-signal (I/Q-signal) and to provide said I/Q-signal for the analyzing unit, the analyzing unit is configured to detect hop occurrences at nominal hop frequencies based on the provided I/Q-signal. In addition to this, the analyzing unit is further configured to specify at least one common reference frequency with respect to the hop occurrences.

A power amplifier (10) with adjustable voltage standing wave ratio is described which comprises an amplifier unit (16), a coupler (18) configured to obtain an incident power and a coupled reflected power, and a power control unit (20). The power control unit (20) is configured to control the amplifier unit (16). The power control unit (20) has two power detectors (22, 24) configured to provide actuating variables which correspond to the incident power and the reflected power, respectively. The power control unit (20) comprises two digital potentiometers (26, 28) which are configured to variably weight the actuating variables wherein the power control unit (20) is configured to determine a control variable for the amplifier unit (16) based on the actuating variables such that a predetermined power level related to a set value of the voltage standing wave ratio is not exceeded by the incident power and/or the reflected power. Further, a radio frequency electronic device and a method are described.

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A testing system is described, wherein said testing system is configured to perform a multipaction test on a device under test. Said testing system comprises a signal generation unit being configured to stimulate an input of said device under test, a receiving unit being configured to receive and measure at least one output signal of said device under test in order to obtain data related to a multipaction occurrence. Said signal generation unit and said receiving unit are controlled such that both units are operated simultaneously. Said signal generation unit is configured to generate a testing signal for stimulating said input, said testing signal comprising at least two carriers simultaneously. Further, a method for testing a device under test is described.

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The present invention provides a communication device (100, 200, 300) for communication in a wireless network (101, 201, 301), the communication device (100, 200, 300) comprising a functional unit (102, 202, 302), which is configured to communicate in the wireless network (101, 201, 301), and a testing unit (104, 204, 304), which is coupled to the functional unit (102, 202, 302) and is configured to controllably exchange test data (105, 205, 305) with the functional unit (102, 202, 302). The present invention further provides a testing method for such a communication device.

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