Inventor
NORRIS ELWOOD GRANT
US24 patents
⚠️ This page may combine multiple inventors who share the name “NORRIS ELWOOD GRANT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TURTLE BEACH CORP
18 patentsUS9667173B1May 30, 2017
Electrostatic parametric transducer and related methods
TURTLE BEACH CORP44 citations93
US9363597B1Jun 7, 2016
Distance-based audio processing for parametric speaker system
TURTLE BEACH CORP29 citations90
US9432785B2Aug 30, 2016
Error correction for ultrasonic audio systems
TURTLE BEACH CORP8 citations83
US9351083B2May 24, 2016
Transparent parametric emitter
TURTLE BEACH CORP6 citations82
US9596529B2Mar 14, 2017
Parametric transducer with adaptive carrier amplitude
TURTLE BEACH CORP4 citations72
US9402135B1Jul 26, 2016
Magnetostrictive parametric transducer
TURTLE BEACH CORP3 citations72
US9368098B2Jun 14, 2016
Parametric emitter system with noise cancelation
TURTLE BEACH CORP5 citations72
US9113260B2Aug 18, 2015
Parametric transducer including visual indicia and related methods
TURTLE BEACH CORP5 citations72
US9769573B2Sep 19, 2017
Transparent parametric transducer and related methods
TURTLE BEACH CORP6 citations71
US9661423B2May 23, 2017
Transparent parametric emitter
TURTLE BEACH CORP4 citations71
US9510089B2Nov 29, 2016
Dynamic location determination for a directionally controllable parametric emitter
TURTLE BEACH CORP6 citations67
US9232317B2Jan 5, 2016
Parametric transducer with graphene conductive surface
TURTLE BEACH CORP2 citations62
US10397679B2Aug 27, 2019
Transparent touchscreen parametric emitter
TURTLE BEACH CORP1 citations57
US9654229B2May 16, 2017
Parametric transducer microphone system
TURTLE BEACH CORP1 citations51
US9635466B2Apr 25, 2017
Parametric in-ear impedance matching device
TURTLE BEACH CORP1 citations51
US9271102B2Feb 23, 2016
Multi-dimensional parametric audio system and method
TURTLE BEACH CORP1 citations48
US9780753B2Oct 3, 2017
Adaptive equalization for an ultrasonic audio system
TURTLE BEACH CORP0 citations41
US9794694B2Oct 17, 2017
Parametric in-ear impedance matching device
TURTLE BEACH CORP0 citations39
PARAMETRIC SOUND CORP
6 patentsUS8929575B2Jan 6, 2015
Hearing enhancement systems and methods
PARAMETRIC SOUND CORP9 citations83
US8718297B1May 6, 2014
Parametric transducer and related methods
PARAMETRIC SOUND CORP19 citations83
US9319802B2Apr 19, 2016
Personal audio system and method
PARAMETRIC SOUND CORP3 citations72
US9258651B2Feb 9, 2016
Transparent parametric transducer and related methods
PARAMETRIC SOUND CORP6 citations72
US9002043B2Apr 7, 2015
Parametric transducer and related methods
PARAMETRIC SOUND CORP6 citations71
US9277317B2Mar 1, 2016
Tunable inductive device for parametric audio systems and related methods
PARAMETRIC SOUND CORP0 citations41