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:
Sep. 14, 1993
Filed:
Jan. 30, 1990
Gerhard Wischermann, Weiterstadt, DE;
BTS Broadcast Television Systems GmbH, Darmstadt, DE;
Abstract
Video signals are supplied as component signals (in which the color signals are not correlated with a color carrier wave) and are stored in a frame memory and read out therefrom in synchronism with supplied reference signals. A FIFO memory is interposed ahead of the frame memory for delaying the video signals in such a way that they can be brought into synchronism with the horizontal phase of the reference signals. The system can be made to operate in a frame mode in which the field sequence and the timing of the synchronizing pulses always agree with those of the reference signal, in a field mode in which only horizontal sychronization is provided and the field sequence can be modified, a line mode in which the input signal is merely delayed into synchronism with the horizontal phase of the reference signal, and a delay mode in which a substitute reference signal is derived from the input signal itself, so that the memory is used merely for delay.