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:
Sep. 27, 1988
Filed:
Nov. 29, 1985
Applicant:
Inventors:
Claude J Force, Brunoy, FR;
Claude C Loisel, Montrouge, FR;
Assignee:
SAT, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ; G06F / ;
U.S. Cl.
CPC ...
370 16 ; 371-8 ; 379 16 ;
Abstract
A switching system is provided for application to a multichannel digital transmission network. It allows a defective channel to be replaced by an emergency channel without the user of the channel being aware of the replacement. On the emission side as well as on the reception side, switching and processing take place of bipolar signals, for example a High Density Bipolar 3 code, which allows the path doubled or extended so as to increase the operating safety of the network and provide greater flexibility in use.