Invention Grant
- Patent Title: Loudspeaker enhancement
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Application No.: US15584532Application Date: 2017-05-02
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Publication No.: US10694289B2Publication Date: 2020-06-23
- Inventor: Rahmi Hezar , Rajan Narasimha , Srinath Ramaswamy
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Mark Allen Valetti; Charles A. Brill; Frank D. Cimino
- Main IPC: H04R3/04
- IPC: H04R3/04 ; H03F3/217 ; H03F1/32 ; H03F3/187

Abstract:
One example includes a system that is comprised of a speaker, an amplifier, a current sensor, and a compensator circuit. The speaker produces audio in response to an amplified analog input signal received at a speaker input. The amplifier receives an analog audio input signal and provides the amplified analog audio input signal to the speaker input. The current sensor senses current passing through the speaker and provides a current sensor signal indicative thereof. The compensator circuit applies a transfer function to the current sensor signal to provide a compensation signal as feedback into the analog audio input signal, the transfer function matching at least one of resistance and inductance of the speaker.
Public/Granted literature
- US20180324524A1 LOUDSPEAKER ENHANCEMENT Public/Granted day:2018-11-08
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