The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 2016
Filed:
Aug. 31, 2015
Intel Corporation, Santa Clara, CA (US);
Ajay Kumar Vaidhyanathan, Banglaroe, IN;
Ramaswamy Partha Parthasarathy, Bangalore, IN;
Sudarshan D. Solanki, Bangalore, IN;
Bala P. Subramanya, Bangalore, IN;
Yagnesh V. Waghela, Bangalore, IN;
Vikas Mishra, Bangalore, IN;
Devon Worrell, Folsom, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Adaptive filtering is described for use with amplifiers for any wired speaker. In one example, an apparatus includes an audio cable to provide an analog audio signal to an audio transducer, such as a speaker, the audio cable also receiving a modulated noise current, an output amplifier to receive an audio input, to generate an audio output by amplifying the audio input, and to provide the audio input to the audio cable, and a feedback system to receive the audio output and to receive a reference signal and to generate a noise cancellation signal to the output amplifier, the noise cancellation signal to cancel the modulated noise current.