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:
Jan. 14, 1992
Filed:
Sep. 12, 1990
Applicant:
Inventors:
Assignee:
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ; H04B / ; H04B / ;
U.S. Cl.
CPC ...
379-5 ; 379 16 ; 371 205 ; 375 10 ;
Abstract
For generating test words that are sent across a test loop and are monitored at the receiving side for coincidence and with the corresponding, transmitted test word, a memory is read in which such test words that preferably correspond to test words generated by a pseudo-random generator are stored. In the course of the monitoring, the memory is read again under the same address as in the transmission, but delayed by the running time of the test loop, in order to supply the test word that is to be compared to the received test word.