US 9,812,115 B2
Active noise-cancellation feedback signal transmission
Laurent Le Faucheur, Antibes—Juan-les-Pins (FR)
Assigned to Texas Instruments Incorporated, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Jun. 6, 2016, as Appl. No. 15/174,249.
Application 15/174,249 is a division of application No. 13/348,593, filed on Jan. 11, 2012, granted, now 9,384,726.
Claims priority of application No. 12290006 (EP), filed on Jan. 6, 2012.
Prior Publication US 2016/0284335 A1, Sep. 29, 2016
Int. Cl. G10K 11/16 (2006.01); G10K 11/178 (2006.01); H04R 1/10 (2006.01); G06F 3/16 (2006.01); H04R 3/04 (2006.01); H04B 1/16 (2006.01); H04S 3/00 (2006.01); H04R 3/00 (2006.01)
CPC G10K 11/178 (2013.01) [G06F 3/165 (2013.01); G10K 11/1784 (2013.01); H04R 1/1083 (2013.01); H04R 3/04 (2013.01); H04B 1/1684 (2013.01); H04R 3/005 (2013.01); H04S 3/004 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An electronic audio device comprising:
(a) a user interface controller;
(b) a headset interface having a right audio lead, a left audio lead, and a microphone lead;
(c) an audio system coupled to the user interface controller and having a right audio output and a left audio output; and
(d) a decoder including:
i. a left ultrasonic demodulator having an input connected to the microphone lead and an output;
ii. a left mixer having an input connected to the left audio output, an input connected to the output of the left ultrasonic demodulator, and an output connected to the left audio lead;
iii. a right ultrasonic demodulator having an input connected to the microphone lead and an output; and
iv. a right mixer having an input connected to the right audio output, an input connected to the output of the right ultrasonic demodulator, and an output connected to the right audio lead.