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:
Mar. 14, 1978
Filed:
Dec. 22, 1976
Applicant:
Inventors:
Susumu Takahashi, Tokyo, JA;
Hirotaka Kurata, Tokyo, JA;
Assignee:
Sansui Electric Co., Ltd., , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04H / ;
U.S. Cl.
CPC ...
179 / ; 325 36 ;
Abstract
An AM stereophonic transmission system in which a carrier wave signal is phase- or frequency-modulated by an audio composite signal L - jR or L + jR and the phase- or frequency-modulated carrier wave signal is further amplitude-modulated by an audio composite signal L + jR or L - jR.