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:
Jun. 28, 1994
Filed:
Jan. 27, 1992
Ali Bahraman, Palos Verdes Estates, CA (US);
Northrop Corporation, Los Angeles, CA (US);
Abstract
A scrollable spatial light modulator--or SLM--provides non-destructively transfer and display of an analog signal, which may include multiple levels of gray scale information, for high speed analog optical processing. Each pixel in the scrollable SLM consists of a metal-oxide-semiconductor--or MOS--transistor and four MOS capacitors in a four-phase charge-coupled device--or CCD--array. Two of the MOS capacitors in each pixel are used for charge storage while the other two are used to implement charge transfer. An MOS transistor used to control the gate of one of the charge storage MOS capacitors is clocked to float only when the charge signal is being stored therein and then drives a pixel of the liquid crystal display, such as a ferroelectric liquid crystal display to encode a frame of data onto a light beam as an image.