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:
Feb. 26, 1980
Filed:
Dec. 05, 1977
William J Buynak, Bayville, NY (US);
U.S. Philips Corporation, New York, NY (US);
Abstract
An editing display system using a CRT display, with variable margin and tabulation facilities. Dual cursors are provided on the display: the first indicating the row and column in the display selected by the user, the second 'shadow' cursor appearing in the same column but on the rule indice line of the display. The dual cursor function is implemented by providing a random access memory which is partitioned into data sets in which the first character represents the location of a cursor on a given line, and the remaining characters identify the actual characters on that line. Direct memory access including fixed format information is used for transferring the data in memory to a shift register in the video control portion of the system.