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:
Nov. 05, 1996
Filed:
Apr. 01, 1994
James W Stevens, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An image input terminal synchronously transfers image data to a host terminal when the internal data transfer rate of the image input terminal exceeds the data transfer rate of the host terminal. The image input terminal scans the document at a constant rate, but the constant rate is slower than the normal scan rate for the image input terminal, thereby effectively scanning the document at a higher resolution. To realize an apparent internal data transfer rate equal to the data transfer rate of the host terminal, the image input terminal periodically discards or skips scanlines of valid image data to give the host terminal ample time to complete the transfer of valid image data. The image input terminal, to facilitate a synchronous transfer of image data, will skip N-1 scanlines of valid image data out of N scanlines of valid image data such that N is determined by the data transfer rate of the host terminal.