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:
May. 07, 1991
Filed:
Jul. 07, 1989
Detlev Otto, Knoxville, TN (US);
North American Philips Corporation, New York, NY (US);
Abstract
A method for encoding and transmitting video signals, the method including separating the video signals into consecutive base intervals, each base interval having a predetermined time duration; time delaying every other one of the base intervals for the predetermined time duration whereby consecutive pairs of the base intervals are available in parallel; time expanding by a factor of two each of the consecutive pairs of base intervals thereby reducing the bandwidth of the intervals by one-half; and amplitude modulating in quadrature the base intervals in the time expanded consecutive pairs of base intervals onto a carrier frequency located in a transmission band.