Denso’s fault detection device for antennas adjusts carrier wave frequency, modulates the signal, and measures antenna current to detect faults. By analyzing current values, the device identifies changes in antenna characteristics. This patented technology ensures efficient fault detection in antenna systems. GlobalData’s report on Denso 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 Denso, Battery management systems was a key innovation area identified from patents. Denso's grant share as of April 2024 was 51%. Grant share is based on the ratio of number of grants to total number of patents.
Fault detection device for detecting antenna faults
A fault detection device for antennas has been granted a patent (Publication Number: US11971439B2). The device comprises a frequency adjuster, modulator, amplifier, current measurer, fault detector, and controller. The controller executes a test signal supply process by adjusting the frequency of the carrier wave, modulating it with a test signal, and amplifying it to supply to the antenna. The antenna current is measured for each frequency change, and the fault detector identifies changes in antenna characteristics based on frequency differences. The fault detector can detect faults related to incorrect assembly of antennas and notify users when a fault is detected. The frequency range of the carrier wave is set between 30 kHz to 300 kHz.
Another aspect of the patent describes a fault detection device with a central processing unit (CPU) and an integrated circuit (IC) that performs similar functions as the previous device. The IC adjusts the frequency, modulates the carrier wave, amplifies the signal, and measures the antenna current. The CPU detects faults based on changes in antenna characteristics due to frequency differences. The device executes a test signal supply process in cycles to ensure accurate fault detection. The patent also includes a fault detection device with a processor and memory storing instructions for executing the test signal supply process, measuring antenna current, and detecting faults based on changes in antenna characteristics. The device repeats the process in cycles to ensure thorough fault detection based on frequency differences.
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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.
