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:
Sep. 15, 1998
Filed:
Apr. 12, 1996
Steven W Baldwin, Fairport, NY (US);
William M OuYang, Rochester, NY (US);
James R York, Webster, NY (US);
Wayne Cheng, Fairport, NY (US);
Ronald E McGarvey, Rochester, NY (US);
Ana M Perez, Rochester, NY (US);
Carolina Creus, Ontario, NY (US);
Vernon W Ulrich, Charlottesville, VA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
The physical integrity of a large-scale hardware connection between two modules, such as in the context of high-speed digital printing, is tested by entering a diagnostic mode in which single-instruction handshake routines are repeatedly sent from one module to another through a parallel bus. Each handshake routine activates all of the communication lines in the bus. If a sending module does not receive the expected response to the single-instruction handshake routine within a predetermined time, the sending module causes an audible signal to be emitted. Service personnel can manually manipulate various cables, connectors, and sockets forming a hardware connection while the system is in diagnostic mode, to isolate the location of a hardware fault.