ELMOS Semiconductor has filed a patent for a device and method that evaluate signals from Wheatstone bridges. The invention incorporates a test signal into the measurement signal before amplification and analog-to-digital conversion, allowing for the detection of faults in the amplifier or converter. The patent also outlines a method for monitoring a sensor system in operation, involving mixing and filtering of signals at various locations in the signal path. 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 September 2023 was 49%. Grant share is based on the ratio of number of grants to total number of patents.
Method for monitoring a sensor system using wheatstone bridges
A recently filed patent (Publication Number: US20230314256A1) describes a method for monitoring a sensor system in operation. The sensor system includes a sensor element that provides an input signal with a time course of an input signal value. The method involves several steps, including mixing the input signal with a chopper signal at different locations in the signal path, filtering the demodulated signals, and generating output signals. The method also includes the use of an orthogonal chopper signal and a reference element for signal processing. The patent also describes a pressure sensor that can be used with this method, which includes a Wheatstone bridge sensor element and a reference element. The pressure sensor is designed to provide accurate measurements by utilizing the reference element as a noise source for subsequent signal processing.
In addition to the method and pressure sensor, the patent also describes alternative sensor configurations. These include a sensor with variable resistors and a sensor with multiple cavities and membranes. These alternative configurations aim to improve the performance and accuracy of the sensor system.
Overall, the patent presents a method and various sensor configurations for monitoring a sensor system. The method involves mixing and filtering signals to generate accurate output measurements. The pressure sensor described in the patent utilizes a Wheatstone bridge sensor element and a reference element to improve measurement accuracy. The alternative sensor configurations offer additional options for enhancing the performance of the sensor system.
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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.
