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:
Jun. 19, 1979
Filed:
Jan. 30, 1978
Applicant:
Inventor:
Peter J Janssen, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358143 ; 358144 ; 358198 ; 358186 ;
Abstract
Television system having first and second FM sound carriers, the receiver comprising a picture intermediate frequency section, a conventional first sound demodulation circuit connected thereto via a video detector for demodulating a first sound signal being frequency modulated on the first sound carrier, and a new second sound demodulation circuit connected directly to the picture intermediate frequency section with which a second sound signal being frequency modulated on the second sound carrier can be demodulated, even at a low amplitude of the second sound carrier.