ELMOS Semiconductor has filed a patent for a light receiver circuit with compensation for propagation times. The circuit includes a light sensor, control circuit, connecting line to a TDC circuit, and a test circuit. The invention also extends to a Lidar receiver for capturing optical events. GlobalData’s report on ELMOS Semiconductor gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on ELMOS Semiconductor, Photonic quantum communication was a key innovation area identified from patents. ELMOS Semiconductor's grant share as of January 2024 was 49%. Grant share is based on the ratio of number of grants to total number of patents.
Light receiver circuit with propagation time compensation
A recently filed patent (Publication Number: US20240035884A1) describes a light receiver circuit designed to compensate for propagation times in light sensors. The circuit includes a control circuit for selecting and managing the light sensor, a connecting line to a TDC circuit for evaluating light signals, and a test circuit connected to a test signal source. The test circuit is responsible for forwarding electrical test signals to the control circuit, which then routes the signals to the TDC circuit for evaluation. The patent also details the use of a test-select switch within the test circuit to facilitate the forwarding of test signals to the control circuit.
Furthermore, the patent outlines the application of this light receiver circuit in a light sensor array, where multiple circuits are connected to the same test line for evaluation. The array includes a TDC circuit for signal evaluation and a test signal source for generating test signals. Additionally, the patent describes the integration of this circuit into a lidar receiver for capturing optical events, as well as a lidar system for capturing optical events in conjunction with a driver circuit for a light source. The patent also includes a method for compensating propagation time differences in the light receiver circuit, involving steps such as generating an electrical test signal, decoupling the measurement signal, and determining the propagation time of the test signal for evaluation.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
