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:
Nov. 06, 2018
Filed:
Jul. 10, 2017
Amazon Technologies, Inc., Seattle, WA (US);
Timothy T. List, Santa Cruz, CA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
A voice controlled assistant has two speakers and stereo component configured to produce high quality stereo sound. The stereo component generates a first channel signal and a second channel signal used to produce stereo sound. The first channel signal is filtered to remove a range of frequencies, such as the low frequency range. The filtered first channel signal is passed to a first transducer associated with a first speaker to output a first part of the stereo sound. The second channel signal, together with the frequency portion removed from the first channel signal, are provided to a second transducer associated with a second speaker to output a second part of the stereo sound. In this manner, the two speaker arrangement plays stereo, without distortion, while preserving all frequencies in the signals.