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. 16, 1982
Filed:
May. 09, 1972
Applicant:
Inventor:
Roy M Christensen, Titusville, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04S / ; H04H / ;
U.S. Cl.
CPC ...
179 / ; 179 / ;
Abstract
Systems for uniformly reproducing a sound field surrounding a listener are disclosed utilizing three channels of audio information signals. One channel provides signals representative of total sound pressure (a sum signal) and the two remaining channels provide orthogonal pressure gradients (difference signals) representative of location of sound sources which produce the sound field. FM radio systems utilizing the three channel technique for providing surround stereophonic sound are also described.