Digital communication system with intelligent channel units

US5726986A · kind A · utility

Assignee

• Integrated Network Corporation · US

Inventors

• Earl A. Emerson · Somerville, US
• Mahesh P. Desai · Annandale, US
• Henry J. Gonzalez · Piscataway, US
• Kyung-Yeop Hong · Montgomery, US
• Martin L. Swim · Morristown, US

Key dates

• Filing date: May 24, 1995
• Grant date: Mar 10, 1998
• Expiry date: May 24, 2015

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04Q11/04
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

In a time division multiplex digital communication system, access devices are capable of generating and detecting data sequences that are normally suppressed by end user equipment for establishing in-band communications between the access device and selected intelligent channel units (ICU's ). An ICU initiates in-band communication with the access device by transmitting a service request sequence to the access device. The access device transmits a wake-up sequence to the ICU to establish in-band communication. Once established, in-band communications can then be used to accomplish automated provisioning, performance reporting, status reporting, alarm reporting as well as other important functions.