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:
Feb. 04, 1993
Applicant:
Inventor:
Robert J Russell, South Boston, MA (US);
Assignee:
Bull HN Information Systems Inc., Billerica, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
371 223 ; 364579 ; 364580 ; 371 151 ; 371 221 ; 371 225 ; 371 226 ;
Abstract
A method and apparatus provides an analog mode of operation of a standard test access bus interface based on a standard Boundary Scan architecture which is limited to use of digital signals. Circuits are included in the interface which enable this sharing of data paths at separate time intervals defined under instruction control for processing analog and digital signals thereby providing a hybrid capability without any increase in the number of lines required by the interface.