Larsen & Toubro has been granted a patent for a noise cancellation system that utilizes a sensor to detect equipment-generated noise. The system generates a corresponding noise cancellation signal and triggers a nearby speaker to produce sound that mitigates the detected noise at its 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 June 2024 was 33%. Grant share is based on the ratio of number of grants to total number of patents.
Noise cancellation system using sensors and speakers
The granted patent US11984108B2 outlines a sophisticated noise-cancellation system designed to mitigate noise generated by equipment. The system comprises a first sensor that detects noise and generates a corresponding signal, a speaker positioned nearby, and a processor that processes the signals. The processor executes instructions stored in memory to create a noise cancellation signal based on the detected noise and triggers the speaker to emit sound that counteracts the noise at its source. Additionally, the system can include a second sensor that monitors the sound produced by the speaker, allowing the processor to assess the effectiveness of the noise cancellation and make necessary adjustments to optimize performance.
Further enhancements to the system involve multiple sensors and speakers, enabling a more comprehensive noise management approach. The cooling device described in the patent features a plurality of sensors and speakers, with the sensors detecting both the noise from the equipment and the sound generated by the speakers. The processor analyzes the data from these sensors to determine the effectiveness of the noise cancellation efforts. By comparing the noise data with the sound data, the system can fine-tune the noise cancellation signal, ensuring that it effectively reduces noise levels in various environments. This innovative approach to noise cancellation has potential applications in numerous fields, including industrial settings and consumer electronics.
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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.
