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:
Apr. 06, 1993
Filed:
Apr. 23, 1991
Applicant:
Inventors:
Kenneth A Bronfin, New York, NY (US);
Stephen M Mahrer, Mt. Holly, NJ (US);
W Robin Wilson, New York, NY (US);
Francis A Davenport, Haddonfield, NJ (US);
Assignee:
National Broadcasting Company, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358142 ;
Abstract
Data are added invisibly to the active video component of a television signal by a modulated carrier. The data, upon recovery, may be used for numerous purposes, including network signaling, data transmission, program identification, remote machine control, broadcast verification, and signal quality detection and measurement.
Published as:
MX9201852A; CA2106486A1; WO9219073A1; AU1877092A; US5200822A; EP0581903A1; JPH06506809A; EP0581903A4; TW240367B; NZ242232A; AU663087B2;