U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Trace tool for serial, optical interface

Patent 5404504 Issued on April 4, 1995. Estimated Expiration Date: Icon_subject May 4, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Logic state analyzer with restart and state occurrence qualification
Patent #: 4301513
Issued on: 11/17/1981
Inventor: Haag ,   et al.

Composite logic analyzer capable of data display in two time-related formats
Patent #: 4364036
Issued on: 12/14/1982
Inventor: Shimizu

Logic analyzer for a multiplexed digital bus
Patent #: 4434488
Issued on: 02/28/1984
Inventor: Palmquist ,   et al.

Logic state analyzer with graph of captured trace
Patent #: 4480317
Issued on: 10/30/1984
Inventor: Haag ,   et al.

Logic state analyzer with sequential triggering and restart
Patent #: 4495599
Issued on: 01/22/1985
Inventor: Haag ,   et al.

Timing or logic state analyzer with automatic qualified inferential marking and post processing of captured trace data
Patent #: 4641348
Issued on: 02/03/1987
Inventor: Neuder ,   et al.

Logic analyzer having a plurality of sampling channels
Patent #: 4697138
Issued on: 09/29/1987
Inventor: Morishita ,   et al.

Increased resolution logic analyzer using asynchronous sampling
Patent #: 4777616
Issued on: 10/11/1988
Inventor: Moore ,   et al.

Oscilloscope-like user-interface for a logic analyzer
Patent #: 4972138
Issued on: 11/20/1990
Inventor: Bush

Third party evavesdropping for bus control Patent #: 5182554
Issued on: 01/26/1993
Inventor: Kaiser, et al.

Inventors

Application

No. 055886 filed on 05/04/1993

US Classes:

714/47Performance monitoring for fault avoidance

Examiners

Primary: Canney, Vincent P.

Attorney, Agent or Firm

International Class

G06F 011/00

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.

Other References

  • IBM Dictionary of Computing, McGraw-Hill, .COPYRGT.1994 by IBM pp. 239 & 30
PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$18.95more info
 
Sign InRegister
Username  
Password   
forgot password?