Patents by Inventor Munir G. Salfity
Munir G. Salfity has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7965406Abstract: A circuit which uses a compressor to divide each separation image into 8-line strips, and to independently compress each strip, a single decompressor to decompress two or more color image separations, strip by strip, by interleaving them, and to apply them to two or more print heads, one for each color separation. DMA from a main memory is used to apply both separations to the decompressor, and the decompressor output is demultiplexed into two print heads, one for each separation. This is done to drive each color separation simultaneously in a single-pass color printer. Multiplexing logic controls the DMA into the decompressor and the output of the decompressor into separate buffers for each color separation. Additional logic uses the page and line sync from each print head to synchronize the accessing of the correct image raster from buffers at the output of the decompressor to the associated print head.Type: GrantFiled: January 24, 2008Date of Patent: June 21, 2011Assignee: Xerox CorporationInventors: George L. Eldridge, Munir G. Salfity, John Cheng Ming {acute over (T)}ou
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Patent number: 7420699Abstract: The invention generates a page description language compliant data stream, that has been pre-designed and pre-processed to create unique and predictable page element ordering, overlay layout, and for splitting large page elements into multiple independent elements. In this way, multiple processors can be used to render the document without merging the data stream.Type: GrantFiled: December 22, 2003Date of Patent: September 2, 2008Assignee: Xerox CorporationInventors: Michael E. Farrell, Peter A. Crean, Daniel Fleysher, William S. Jacobs, Robert E. Lyons, Thomas Robson, David E. Rumph, Munir G. Salfity, Mark A. Smith, Eric J. Thibodeau
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Publication number: 20080144140Abstract: A circuit which uses a compressor to divide each separation image into 8-line strips, and to independently compress each strip, a single decompressor to decompress two or more color image separations, strip by strip, by interleaving them, and to apply them to two or more print heads, one for each color separation. DMA from a main memory is used to apply both separations to the decompressor, and the decompressor output is demultiplexed into two print heads, one for each separation. This is done to drive each color separation simultaneously in a single-pass color printer. Multiplexing logic controls the DMA into the decompressor and the output of the decompressor into separate buffers for each color separation. Additional logic uses the page and line sync from each print head to synchronize the accessing of the correct image raster from buffers at the output of the decompressor to the associated print head.Type: ApplicationFiled: January 24, 2008Publication date: June 19, 2008Applicant: Xerox CorporationInventors: George L. Eldridge, Munir G. Salfity, John Cheng Ming Tou
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Patent number: 7349135Abstract: A circuit which uses a compressor to divide each separation image into 8-line strips, and to independently compress each strip, a single decompressor to decompress two or more color image separations, strip by strip, by interleaving them, and to apply them to two or more print heads, one for each color separation. DMA from a main memory is used to apply both separations to the decompressor, and the decompressor output is demultiplexed into two print heads, one for each separation. This is done to drive each color separation simultaneously in a single-pass color printer. Multiplexing logic controls the DMA into the decompressor and the output of the decompressor into separate buffers for each color separation. Additional logic uses the page and line sync from each print head to synchronize the accessing of the correct image raster from buffers at the output of the decompressor to the associated print head.Type: GrantFiled: October 25, 2002Date of Patent: March 25, 2008Assignee: Xerox CorporationInventors: George L. Eldridge, Munir G. Salfity, John Cheng Ming Tou
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Publication number: 20030123071Abstract: A circuit which uses a compressor to divide each separation image into 8-line strips, and to independently compress each strip, a single decompressor to decompress two or more color image separations, strip by strip, by interleaving them, and to apply them to two or more print heads, one for each color separation. DMA from a main memory is used to apply both separations to the decompressor, and the decompressor output is demultiplexed into two print heads, one for each separation. This is done to drive each color separation simultaneously in a single-pass color printer. Multiplexing logic controls the DMA into the decompressor and the output of the decompressor into separate buffers for each color separation. Additional logic uses the page and line sync from each print head to synchronize the accessing of the correct image raster from buffers at the output of the decompressor to the associated print head.Type: ApplicationFiled: October 25, 2002Publication date: July 3, 2003Applicant: Xerox CorporationInventors: George L. Eldridge, Munir G. Salfity, John Cheng Ming Tou
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Patent number: 6064492Abstract: A high speed image data interface between a print server containing a page description language decomposer and an interface card, and a printer containing a rendering card and a print engine, where the interface card is physically located in the printer case and is plugged into the backplane of the printer. The interface is synchronous and carries clock, page request, line request and reset signals from the renderer, and line valid, error and data signals from the interface card. Other communications between the printer and server are carried by a telephone line or local area network. The advantage of this arrangement is that the printer manufacturer can design the printer without having to design the interface card to match the server manufacturer's requirements.Type: GrantFiled: May 29, 1998Date of Patent: May 16, 2000Assignee: Xerox CorporationInventors: George L. Eldridge, San A. Phong, Yuanta Kuo, Munir G. Salfity
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Patent number: 5097256Abstract: A system for using the page buffer memory which stores the pixel map to generate the cursor in a CRT display. An unused portion of the memory is used to store a duplicate copy of the band in which the cursor is currently located, and the cursor is written into its appropriate location in this duplicate band, thus destroying the underlying image in the duplicate, but not in the original. The display is then generated by cycling through the page buffer except that the duplicate band containing the cursor, instead of the original band containing the underlying image, is displayed. After each display is generated, during the time when the scan returns from the bottom to the top of the display, if the cursor has moved since the previous display, the new band containing the cursor is created in the unused portion, and the display process is repeated.Type: GrantFiled: September 28, 1990Date of Patent: March 17, 1992Assignee: Xerox CorporationInventors: George L. Eldridge, Munir G. Salfity