Integrated haptic system

RAO Harsha, R Hu, CL Ståhl, J Su, V Konradi… - US Patent …, 2020 - Google Patents
An integrated haptic system may include a digital signal processor and an amplifier
communicatively coupled to the digital signal processor and integrated with the digital signal …

Force sensing system and method

H Sepehr, PP Parada, W Zwart, T Birchall… - US Patent …, 2020 - Google Patents
A force sensing system for determining if a user input has occurred, the system comprising:
an input channel, to receive an input from at least one force sensor; an activity detection …

Haptic output systems

RD Rand, TS Doy, TI Harvey - US Patent 10,620,704, 2020 - Google Patents
The present disclosure relates to a system for providing substantially synchronised haptic
and audio outputs. The system includes a signal processor which is configured to receive an …

Methods and apparatus for driving a transducer

R Hu, J Su - US Patent 10,795,443, 2020 - Google Patents
Embodiments described herein relate to methods and apparatus for driving a haptic
transducer with a driving signal. The method comprises estimating, based on a current …

Methods and apparatus for outputting a haptic signal to a haptic transducer

AS Doy, N Osmanovic, CL Ståhl - US Patent 10,832,537, 2020 - Google Patents
Embodiments described herein relate to methods and apparatus for outputting a haptic
signal to a haptic transducer. A method for triggering a haptic signal being output to a haptic …

Methods and apparatus for limiting the excursion of a transducer

CL Stahl - US Patent 10,667,051, 2020 - Google Patents
Embodiments described herein relate to methods and apparatus for limiting the excursion of
a transducer. The method comprises receiving a transducer signal; and limiting the …

Methods and apparatus for driving a transducer

M Janko, RAO Harsha, C Ståhl, R Hu - US Patent 11,139,767, 2021 - Google Patents
According to embodiments described herein, there are provided methods and apparatus for
providing a driving signal to a transducer, wherein the driving signal is output by an …

Always-on detection systems

RD Rand - US Patent 10,848,886, 2020 - Google Patents
The present disclosure relates to a system for providing an acknowledgement output at an
output transducer of a device in response to detection of a trigger signal. The system …

Resonant tracking of an electromagnetic load

E Marchais, Z You - US Patent 12,035,445, 2024 - Google Patents
A resonant frequency tracker for driving an electromagnetic load with a driving signal may
include a signal generator configured to generate a waveform signal at a driving frequency …

Surface speaker

E Lindemann, I Tyagi, JL Melanson - US Patent 11,259,121, 2022 - Google Patents
8,572,293 B2 10/2013 Cruz-Hernandez et al. 8,572,296 B2 10/2013 Shasha et al. 8,593,269
B2 11/2013 Grant et al. 8,648,829 B2 2/2014 Shahoian et al. 8,659,208 B1 2/2014 Rose et …