Invention Grant
- Patent Title: Systems and methods for disabling adaptation in an adaptive feedforward control system
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Application No.: US16119702Application Date: 2018-08-31
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Publication No.: US10706834B2Publication Date: 2020-07-07
- Inventor: Eric Bernstein
- Applicant: Bose Corporation
- Applicant Address: US MA Framingham
- Assignee: Bose Corporation
- Current Assignee: Bose Corporation
- Current Assignee Address: US MA Framingham
- Agency: Bond, Schoeneck & King, PLLC
- Main IPC: G10K11/178
- IPC: G10K11/178

Abstract:
A system and method for disabling adaptation in an adaptive feedforward control system at low speeds. The method includes generating a noise signal representative of undesired noise detected by a noise sensor of a vehicle and generating a noise-cancellation signal via a controller within the vehicle. Residual noise resulting from the combination of the acoustic energy of the noise-cancellation signal and the undesired noise is detected by a reference sensor, which generates an error signal based on the residual noise. The error signal and a speed signal from a speed sensor on the vehicle are transmitted to an adaptive processing module for the generation of a filter update signal. The adaptive processing module selectively permits or prevents the filter update signal to adapt filter coefficients of a filter when the speed signal is within a set of conditions.
Public/Granted literature
- US20200074977A1 SYSTEMS AND METHODS FOR DISABLING ADAPTATION IN AN ADAPTIVE FEEDFORWARD CONTROL SYSTEM Public/Granted day:2020-03-05
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