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:
Jul. 15, 1986
Filed:
Jun. 18, 1984
Applicant:
Inventors:
Charles E Huffman, Plano, TX (US);
Paul E Pepmiller, Richardson, TX (US);
Assignee:
Rockwell International Corporation, El Segundo, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ; H04J / ; H04J / ;
U.S. Cl.
CPC ...
370 15 ; 370 84 ; 370 13 ;
Abstract
Actual customer data is routed through a composite muldem which comprises a high speed section and a plurality of low speed sections with the signals being switched or transferred between the high speed and low speed sections all at a common frequency. This same customer data is then tested by a bit by bit comparison circuit which tests the data after it is split, rerouted in various datapath configurations and compared in a logical fashion to first detect datapath failure and then isolate the failure to a specific part of the composite muldem by a set of logical deductions.