Victoria Y Jin

US Patent:

61222887, Sep 19, 2000

Filed:

Apr 24, 1997

Appl. No.:

8/847950

Inventors:

Ethan I. Dashiff - Passaic NJ
Victoria Y. Jin - Aberdeen NJ
Lucy Ann Tscherne - Madison NJ

Assignee:

AT&T Corp - Middletown NJ

International Classification:

H04J 304

US Classification:

370465

Abstract:

In situations where 2. 048 megabit E1 (32 channels) access to the customer premise is not available, the only option other than provisioning a 45 megabit T3 line to the customer premise is to provision two 1. 544 megabit T1 (24 channels) lines, and inverse multiplex the customer's E1 signal onto the two T1 lines at the customer premises. At the network point-of-presence (POP), the applicable thirty-two channels of the two T1 lines are remultiplexed onto a single E1 line. The remaining sixteen channels of the two T1s are wasted. To prevent wasting these channels, the present invention provides an additional standard customer interface to enable transport of multiple 64 kilobit applications. The resulting N. times. 64 kbit data stream can then be multiplexed onto the two T1 lines transporting the E1 signal.

US Patent:

59995394, Dec 7, 1999

Filed:

Dec 7, 1998

Appl. No.:

9/207328

Inventors:

Ethan I. Dashiff - Passaic NJ
Victoria Y. Jin - Aberdeen NJ
Lucy Ann Tscherne - Madison NJ

Assignee:

AT&T Corp. - New York NY

International Classification:

H04J 316
H04J 322
H04J 304

US Classification:

370465

Abstract:

In situations where 2. 048 megabit E1 (32 channels) access to the customer premise is not available, the only option other than provisioning a 45 megabit T3 line to the customer premise is to provision two 1. 544 megabit T1 (24 channels) lines, and inverse multiplex the customer's E1 signal onto the two T1 lines at the customer premises. At the network point-of-presence (POP), the applicable thirty-two channels of the two T1 lines are remultiplexed onto a single E1 line. The remaining sixteen channels of the two T1s are wasted. To prevent wasting these channels, the present invention provides an additional standard customer interface to enable transport of multiple 64 kilobit applications. The resulting N. times. 64 kbit data stream can then be multiplexed onto the two T1 lines transporting the E1 signal.