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:
Apr. 04, 1995
Filed:
May. 04, 1993
Daniel J Byers, Tucson, AZ (US);
Donald E Denning, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system is provided for monitoring signals transmitted over one or more optical serial interface channels in an ESCON environment. A formatter card mounts on bus connector in a general purpose tracing tool (GPT) and intercepts optical I/O signals being transmitted between a host processor and, a peripheral device. The signals are decoded into trace data words which are then partitioned into ESCON transaction frames and mapped into a block of GPT frames. The GPT block is stored on the formatter card and transmitted to the GPT when the GPT can accept the data. Data received by the GPT is interleaved with data from other formatter cards attached to other I/O channels (both ESCON and non-ESCON) and is displayed or printed in time-correlated format for analysis. Data can also be stored for later review.