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:
Dec. 14, 1976
Filed:
Jan. 16, 1976
Applicant:
Inventor:
Patrick Henry Gorman, II, Little Silver, NJ (US);
Assignee:
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
179 / ;
Abstract
A switching system is disclosed for interconnecting both the audio and wideband communication leads of communicating telephone stations. The system utilizes an auxiliary switching network separate from the regular audio network for handling the wideband portion of each interconnection. The connections through the auxiliary network are identified for control purposes by tracer signals applied to a called line and detected on the calling line. The tracer signals are applied and detected without interfering with the regular switching network and without major modifications to the existing network.