MUMBAI, India, July 5 -- Intellectual Property India has published a patent application (202517049492 A) filed by Dspace Gmbh, Paderborn, Germany, on May 22, for 'test device for testing a distance sensor that operates using electromagnetic waves, and frequency divider assembly for such a test device.'
Inventor(s) include Baumhofer, Jan; and Graf, Sebastian.
The application for the patent was published on July 4, under issue no. 27/2025.
According to the abstract released by the Intellectual Property India: "The invention relates to a test device (1) for testing a distance sensor (2) that operates using electromagnetic waves, said test device comprising: a receiving element (3) for receiving an electromagnetic free-space wave as a received signal (SRX) with a reception frequency (fRX) and a signal bandwidth (B); an emission element (4) for emitting an electromagnetic output signal (STX), wherein, during a simulation operation, the received signal (SRX) or a received signal (S'RX) derived from the received signal (SRX) is converted into a sampled signal by means of an analogue/digital converter (5), the sampled signal is time-delayed using a signal processing unit (6) to form a time-delayed sampled signal, and the time-delayed sampled signal is converted into a simulated reflection signal (Ssim) by means of a digital/analogue converter (7), wherein the simulated reflection signal (Ssim) or a simulated reflection signal (S'sim) derived from the simulated reflection signal (Ssim) is emitted as an output signal (STX) by means of the emission element (4). Simplified signal processing is achieved by: dividing the received signal (SRX) into a first partial received signal (S1) and a second partial received signal (S2) using a signal splitter (10); frequency-dividing the first partial received signal (S1) using a frequency divider; obtaining the amplitude information (A) of the received signal from the second partial received signal (S2); and generating a frequency-divided received signal with amplitude information (A) from both partial received signals using a modulator."
The patent application was internationally filed on Dec. 04, 2023, under International application No.PCT/EP2023/084143.
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