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.

Date of Patent:
Feb. 01, 1994

Filed:

Feb. 21, 1990
Applicant:
Inventors:

Steven D Edelson, Wayland, MA (US);

Lawrence Bodony, Waban, MA (US);

Assignee:

Analog Devices, Inc., Norwood, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345153 ; 345155 ; 345186 ;
Abstract

In a pixel display system, a plug-to-plug compatible pixel decoder palette is provided which is responsive to a predetermined sequence of commands on an I/O data channel to switch the mode of operation of the pixel decoder palette. The pixel coder palette comprises a random access memory used as a look-up table to store colors to be displayed and the I/O channel is used to store new colors in or read colors out from the random access memory. The different modes of operation of the pixel decoder palette involve operating on intensity values represented by 6-bit bytes and 8-bit bytes and involve continuous edge graphics wherein pixels bridging boundaries between objects are displayed as mixes of the colors on each side of the boundary.


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