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:
Aug. 06, 1985
Filed:
Sep. 27, 1982
Kerns H Powers, Princeton, NJ (US);
RCA Corporation, Princeton, NJ (US);
Abstract
A high-definition camera uses sinuous or line scanning to produce wide bandwidth signals having high-definition in the horizontal and vertical directions. A wobble signal having a wobble chosen at an even integer multiple of one-half the line rate is used to create the sinuous scanning. The phase of the wobble signal is inverted on alternate frames to provide a full raster scan on a high-definition television receiver. A low pass filter produces a limited bandwidth signal from the wide bandwidth signal. The limited bandwidth signal is compatible with standard definition broadcast systems and receivers. At the receiver the high-definition image may be recreated by using a delta signal representative of the difference between the high-definition signal and the standard definition signal in conjunction with the limited bandwidth signal. The delta signal and its addresses may be transmitted during the vertical blanking interval. In order to reduce the data rate of the delta signal its generation is inhibited in regions of the picture which exhibit frame-to-frame motion.