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:
Dec. 17, 2002
Filed:
Jul. 23, 1999
Robert Michael Chapin, Rushville, NY (US);
Gordon Francis Lupien, Jr., Ontario, NY (US);
Anthony Michael Frumusa, Penfield, NY (US);
Xerox Corporation, Rochester, NY (US);
Abstract
An image data flow control and storage facility having a secondary storage, a secondary storage controller, an image input controller, an image output controller and an optional loop-back controller. According to one embodiment, the image input controller, the image output controller and the loop-back controller communicate with the secondary storage controller by way of a PCI-type bus. The secondary storage controller communicates with the secondary storage by way of an SCSI interface. Preferably, the secondary storage controller operates in master mode to transfer blocks of image data directly between the secondary storage and the image output, image input and loop-back controllers. By performing direct image data transfers, the facility of the invention avoids intermediately storing image data in costly DRAM page buffers.