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. 30, 2003
Filed:
May. 15, 2000
Stephen Dale Hanna, Boulder, CO (US);
Phillip Keith Hoskins, Larimer, CO (US);
Steven G. Ludwig, Boulder, CO (US);
Charles Harwood Morris, III, Longmont, CO (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus for error checking in a digital scanning device. An error detection pattern is written into each of a plurality of parallel data streams. Each of the data streams is then transmitted through a separate parallel data channel. The error detection patterns in the data streams are then concurrently compared to one another to check for an error condition of the data stream. If the error detection patterns are not received substantially concurrently, an error condition is considered to have occurred. The error detection pattern may comprise end of scan, end of sheet or First-In First-Out (FIFO) buffer data. While all error conditions are false, printing and data transmission continue. Printing and data transmission are terminated if any error condition is true, and an error notification message is generated.