Larsen & Toubro has patented a noise cancellation system that uses sensors to detect equipment noise, generate a cancellation signal, and trigger a speaker to produce corresponding sound. The system aims to reduce noise at the source. GlobalData’s report on Larsen & Toubro 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 Larsen & Toubro, Solar-powered EVs was a key innovation area identified from patents. Larsen & Toubro's grant share as of May 2024 was 17%. Grant share is based on the ratio of number of grants to total number of patents.
Noise cancellation system for equipment-generated noise
A recently granted patent (Publication Number: US11984108B2) discloses a noise-cancellation system that includes a first sensor to detect noise generated by equipment and generate a corresponding signal. This signal is used by a processor to generate a noise cancellation signal, triggering a speaker to produce sound that cancels out the noise at its source. The system also incorporates a second sensor to detect the sound generated by the speaker, allowing the processor to assess the effectiveness of the noise cancellation and adjust the signal accordingly for optimal performance.
Furthermore, the patent describes a cooling device with multiple sensors and speakers for noise cancellation. The sensors detect noise from various sources, while the speakers generate sound to counteract this noise. The processor analyzes data from the sensors to fine-tune the noise cancellation signal, ensuring efficient noise reduction. By comparing sensor data related to noise and sound generated by the speakers, the system can determine the effectiveness of the noise cancellation and adjust the signal accordingly. This innovative technology aims to provide effective noise reduction in various environments by utilizing sensor data and intelligent processing to optimize noise cancellation.
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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.
