US 12,242,670 B2
Audio and haptic signal processing
Shreyas Srikanth Payal, Carlsbad, CA (US); Sandeep Louis D'Souza, San Diego, CA (US); Reid Westburg, Del Mar, CA (US); William Scofield, San Diego, CA (US); George Issa Saman, San Diego, CA (US); Hui-Ya Liao Nelson, San Diego, CA (US); Hocine Merabti, San Diego, CA (US); Matthew Zivney, San Diego, CA (US); Eddie Choy, Carlsbad, CA (US); and Louis Dominic Oliveira, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Aug. 3, 2022, as Appl. No. 17/880,508.
Prior Publication US 2024/0045505 A1, Feb. 8, 2024
Int. Cl. G06F 3/01 (2006.01); G06F 3/16 (2006.01); G08B 6/00 (2006.01)
CPC G06F 3/016 (2013.01) [G06F 3/16 (2013.01); G08B 6/00 (2013.01)] 42 Claims
OG exemplary drawing
 
1. A method for haptic drive signal generation, the method comprising:
receiving an input audio signal for driving an audio speaker;
deriving, from the input audio signal, data components indicative of a mechanical acceleration of the audio speaker when being driven by the input audio signal, each data component being associated with a respective frequency range;
determining a haptic drive component from each data component derived from the input audio signal;
selecting a respective gain to provide to each of the haptic drive components,
each respective gain being selected for each respective frequency range associated with each respective data component derived from the input audio signal;
applying each selected gain to the respective haptic drive component to produce gain adjusted haptic drive components; and
determining a haptic drive signal from the gain adjusted haptic drive components, the haptic drive signal being so as to produce a mechanical behavior of a haptic actuator when the haptic drive signal is used to drive the haptic actuator.