US 12,170,741 B2
Authenticating a call recording using audio watermarks
Walter F. C. Anderson, Santa Cruz, CA (US); and Vi Dinh Chau, Seattle, WA (US)
Assigned to Zoom Video Communications, Inc., San Jose, CA (US)
Filed by Zoom Video Communications, Inc., San Jose, CA (US)
Filed on Sep. 28, 2022, as Appl. No. 17/954,920.
Application 17/954,920 is a continuation of application No. 17/243,216, filed on Apr. 28, 2021, granted, now 11,483,427, issued on Aug. 2, 2022.
Prior Publication US 2023/0014505 A1, Jan. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 17/00 (2013.01); H04M 3/22 (2006.01); H04W 12/06 (2021.01); H04W 12/65 (2021.01)
CPC H04M 3/2218 (2013.01) [G10L 17/00 (2013.01); H04W 12/06 (2013.01); H04W 12/65 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
recording a call between two or more participants to generate a call recording;
including, within the call, audio watermarks generated for the call by embedding the audio watermarks generated for the call at one or more times throughout the call;
including, within the call recording, audio watermarks generated for the call recording; and
authenticating the call recording based on a match between the audio watermarks included within the call and the audio watermarks included within the call recording.