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:
Jul. 07, 1998
Filed:
Jan. 02, 1996
Bill A Munson, Portland, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Method and apparatus for preventing visual artifacts when converting a 24 bits per pixel red-green-blue (RGB) video signal to a 16 bit per pixel video signal, including a decimator circuit for discarding the least significant bits (LSBs) of the red, green and blue color components of a pixel in the RGB video signal. Further included is an error diffusion circuit coupled to the decimator circuit for adding the LSBs of each of the aforementioned color components of a pixel in the RGB video signal to the LSBs of the same color components of a previous pixel in the RGB video signal and factoring a carry generated by the addition into the MSBs of the same color components of a next pixel in the RGB video signal. An edge detector circuit is coupled to the error diffusion circuit for resetting the error diffusion circuit when the MSBs of the color components of the pixel in the RGB video signal are not the same as the MSBs of the color components of the previous pixel in the RGB video stream.