Bose has filed a patent for a system and method that selects audio capture sensors on wearable devices to obtain voice data. The method involves comparing energy levels of signals obtained from the user’s voice on two wearable devices and selecting the device with the higher signal-to-noise ratio for capturing voice data. This ensures better quality voice data by minimizing ambient noise interference. GlobalData’s report on Bose gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on Bose, acoustic authentication was a key innovation area identified from patents. Bose's grant share as of September 2023 was 54%. Grant share is based on the ratio of number of grants to total number of patents.
Method for selecting audio capture sensors in wearable devices
A recently filed patent (Publication Number: US20230319497A1) describes a method and system for selecting audio capture sensors in wearable devices. The method involves detecting voice signals using audio capture sensors in two wearable devices, where the second device is wirelessly connected to the first device. Voice data from the first device is sent to a peripheral device, and if it is determined that the second signal has a higher signal-to-noise ratio than the first signal, further voice data from the second device is sent to the peripheral device.
The determination of the signal-to-noise ratio can be performed by either the first wearable device, the second wearable device, or the peripheral device. The wearable devices are designed to fit around, on, in, or near the user's ears. In the event that the second signal has a higher signal-to-noise ratio, a role switch occurs, with the second device becoming the primary device.
The determination of the signal-to-noise ratio involves comparing the energy levels of the first and second signals. The first signal may have higher energy levels due to the presence of wind. When the second device sends further voice data to the peripheral device, the first device no longer sends voice data.
The audio capture sensors in the wearable devices can include exterior microphones, interior microphones, feedback microphones used for acoustic noise reduction (ANR) purposes, feedforward microphones also used for ANR purposes, or accelerometers.
Overall, this patent describes a method and system for selecting audio capture sensors in wearable devices based on signal-to-noise ratio, allowing for improved voice capture and communication. The technology has potential applications in various wearable devices, such as earphones or headsets, where clear and high-quality voice transmission is crucial.