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:
Oct. 13, 1998
Filed:
Jan. 06, 1997
Johannes Franciscus Koppelmans, The Hague, NL;
Arthur Meijboom, Schiedam, NL;
Koninklijke PTT, , NL;
Abstract
By providing a digital video memory arrangement with first and second address generating circuits, digital video signals can be written at a first location of a non-mechanical memory and (almost) immediately read out from a second location of the non-mechanical memory, with the reading out both being capable of featuring backward and forward jumps. As a consequence of a coupling between the first and the second address generating circuits it becomes impossible to, on the one hand, unjustly pass with jumping in the read signal the running or stopped write signal and, on the other hand, unjustly pass with the running read signal the stopped write signal. To this end the second address generating circuits dispose over determining circuits for determining, in response to at least the write signal and the read signal, a permitted address jump.