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US 12,363,476 B2Granted
End-fire array microphone arrangements inside a vehicle
AssigneeVUI.AI Inc
InventorDashen Fan
Life of this patent
Estimating the term…
Abstract
The present application discloses exemplary arrangements of an end-fire microphone array inside a vehicle and exemplary digital signal processors configured for the end-fire in-car microphone array. The exemplary digital signal processors may be configured in two modes, a phone call mode and an automatic speech recognition mode. In each mode, the exemplary digital signal processors are improved for enhanced SNR. Different end-fire microphone array arrangements are also disclosed.
Claims20
An audio system, comprising:
- an array of one or more microphones in an end-fire configuration, wherein the microphone array is located on a charging device, wherein the charging device is a universal serial bus (USB) charging cable and the microphone array is located on a head of the USB charging cable;
- and
- a dual-mode digital signal processor configured to operate in an automatic speech recognition mode and a phone call mode;
- wherein each of the one or more microphones generates an audio signal as an input to the dual-mode digital signal processor.
1 more element
An audio system, comprising:
- four or more microphones, wherein at least two microphones in a first microphone array are arranged at one end of a rear-view mirror in an end-fire configuration and wherein at least two microphones in a second microphone array are arranged at the other end of a rear-view mirror in an end-fire configuration, and the first microphone array and the second microphone array face a driver sitting in front of the rear-view mirror in parallel;
- and
- a dual-mode digital signal processor configured to operate in an automatic speech recognition mode and a phone call mode;
- wherein each of the one or more microphones generates an audio signal as an input to the dual-mode digital signal processor.
1 more element
An audio system, comprising:
- an array of one or more microphones in an end-fire configuration, wherein the microphone array is located on an accessory device installed inside a vehicle, wherein the accessory device is a universal serial bus (USB) charging cable and the microphone array is located on a head of the USB charging cable;
- and
- a dual-mode digital signal processor configured to operate in an automatic speech recognition mode and a phone call mode;
- wherein the one or more microphones are arranged in a forward-facing direction of the driver of the vehicle;
- and
- wherein each of the one or more microphones generates an audio signal as an input to the dual-mode digital signal processor.
3 more elements
Dependencies are inferred from the claim text.