Inventor

ABRAMS THOMAS A

US2 patents

Patents

2 patents

US7502481B2Mar 10, 2009

Microphone with ultrasound/audible mixing chamber to secure audio path

MICROSOFT CORP7 citations68

US7580762B2Aug 25, 2009

Microphone with ultrasound/audible mixing chamber to secure audio path

MICROSOFT CORP4 citations57