Amit Singh Chhetri — 9 Patents at Amazon

Issued Patents 2017

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
9837099	Method and system for beam selection in microphone array beamformers	Shiva Kumar Sundaram, Ramya Gopalan, Philip Ryan Hilmes	2017-12-05	$70,058,000
9820036	Speech processing of reflected sound	Charles G. Tritschler, Philip Ryan Hilmes	2017-11-14	$44,554,000
9767828	Acoustic echo cancellation using visual cues	Kavitha Velusamy, Wai Chung Chu, Ramya Gopalan	2017-09-19	$37,495,000
9754605	Step-size control for multi-channel acoustic echo canceller	—	2017-09-05	$35,065,000
9734845	Mitigating effects of electronic audio sources in expression detection	Yue Liu, Praveen Jayakumar, Ramya Gopalan	2017-08-15	$42,907,000
9704478	Audio output masking for improved automatic speech recognition	Shiv Naga Prasad Vitaladevuni, Phillip Ryan Hilmes, Rohit Prasad	2017-07-11	$34,852,000
9689960	Beam rejection in multi-beam microphone systems	William Folwell Barton, Kenneth Edgar Hild, II, Ramya Gopalan, Kavitha Velusamy	2017-06-27	$44,344,000
9678559	Determining a device state based on user presence detection	David William Devries, Stewart Robin Shearer, Serkan Hatipoglu, Omar S. Leung, Michael Serge Devyver +2 more	2017-06-13	$53,479,000
9591404	Beamformer design using constrained convex optimization in three-dimensional space	—	2017-03-07	$42,187,000