The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2018
Filed:
Dec. 18, 2015
Applicant:
Federal Signal Corporation, Oak Brook, IL (US);
Inventors:
Traci Barron, St John, IN (US);
Scott Cassidy, Crown Point, IN (US);
David Perry, Cambridge, MA (US);
Eric Sugalski, West Chester, PA (US);
Assignee:
FEDERAL SIGNAL CORPORATION, Oak Brook, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/38 (2015.01); H04W 4/02 (2018.01); H04R 3/00 (2006.01); H04B 1/3827 (2015.01);
U.S. Cl.
CPC ...
H04W 4/02 (2013.01); H04R 3/002 (2013.01); H04B 2001/3866 (2013.01); H04R 2420/07 (2013.01); H04R 2430/01 (2013.01);
Abstract
A communication system providing volume attenuation as a function of distance from the communication source to simulate natural communication.