Sonos had 39 patents in artificial intelligence during Q1 2024. The patents filed by Sonos Inc in Q1 2024 focus on network microphone devices detecting keywords, receiving voice input, switch assemblies for enabling/disabling microphones, localizing portable devices in a network, and suppressing noise while detecting voice input in multi-channel audio signals. These patents highlight advancements in audio technology for improved user experience and functionality. GlobalData’s report on Sonos gives a 360-degree view of the company including its patenting strategy. Buy the report here.

Sonos grant share with artificial intelligence as a theme is 56% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.

Recent Patents

Application: Memory allocation for keyword spotting engines (Patent ID: US20240105167A1)

The patent filed by Sonos Inc. describes a network microphone device that uses a dynamic random-access memory (DRAM) block to capture sound data streams, detect keywords, and perform commands based on the detected keywords. The device utilizes different memory allocation schemes to process sound data streams via wake-word and keyword engines simultaneously. The keyword engine extracts features from the sound data stream and analyzes them using a neural network, with temporary memory designated for storing and processing these features efficiently.

Furthermore, the method outlined in the patent involves storing sound samples, performing computations on them, and storing the results as extracted features in different portions of the DRAM block. The neural network processes these extracted features by storing them in a separate portion of the memory block, performing computations, and storing the output as a classification. The patent emphasizes the efficient use of memory allocation to handle different data types associated with sound processing, feature extraction, and neural network analysis, enabling the network microphone device to accurately detect keywords and execute corresponding commands in real-time.

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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.