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:
Mar. 01, 1988
Filed:
Jun. 15, 1987
Joseph F Stephany, Williamson, NY (US);
Virgil J Hull, Perinton, NY (US);
Eugene C Faucz, Webster, NY (US);
Alain E Perregaux, Pittsford, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
The invention is a liquid crystal material between horizontal and vertical electrodes. A xerographic drum is placed underneath the electrodes/liquid crystal configuration and an optical system provides light or no light at the intersection of the electrodes to be focused on the xerographic drum. A single line of data is created by printing first the odd elements of the data and then the even elements. First, data is clocked into a shift register coincident with clock pulses. This is the data for the next line to be printed or displayed and not the presently printed or displayed line of odd bits. When the new line has been completely shifted in, a latch pulse transfers the data to latches, a one line parallel in parallel out buffer. Then, on the even half of the cycle, the even bits of data which have been shifted in while the odd dots are being printed, are latched to the drivers.