US 9,813,905 B2
DTMF token for automated out-of-band authentication
Sam Grosby, Minneapolis, MN (US)
Assigned to U.S. BANK, NATIONAL ASSOCIATION, Minneapolis, MN (US)
Filed by U.S. Bank, National Association, Minneapolis, MN (US)
Filed on Oct. 14, 2013, as Appl. No. 14/53,437.
Prior Publication US 2015/0105046 A1, Apr. 16, 2015
Int. Cl. H04M 1/66 (2006.01); H04W 12/06 (2009.01); H04L 29/06 (2006.01); H04W 4/12 (2009.01)
CPC H04W 12/06 (2013.01) [H04L 63/0853 (2013.01); H04L 63/18 (2013.01); H04W 4/12 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An out-of-band authentication method comprising:
a processor receiving a first signal indicative of an authentication token via a first communication network;
in response to receiving the signal, the processor automatically generating a second signal that is indicative of the authentication token without input through a user-interface, wherein the second signal is suitable for transmission over a second communication network, and wherein one of the first signal or the second signal is a dial-tone multi-frequency (DTMF) signal;
the processor automatically transmitting the second signal via the second communication network,
wherein the first signal is received during a voice-communication session and wherein the second signal is transmitted without substantially interrupting the voice-communication session, wherein the second signal is the DTMF signal, and wherein transmitting the second signal comprises playing the DTMF signal on a voice-communication path of the voice-communication session,
wherein the first signal is the DTMF signal, and wherein receiving the first signal comprises detecting the DTMF signal from an audio signal received as part of the voice-communication session.