Patent · US Expired

Method for entering and leaving a power-saving operation of a subscriber in an annular communication network

US6112072A · kind A · utility

5Cited by

6References

10Claims

0Family size

Assignees

Silicon Systems GmbH Multimedia Engineering · DE
Becker GmbH · DE

Inventors

Andreas Stiegler · Ettlingen, DE
Patrick Heck · Durmersheim, DE
Herbert Hetzel · Schweigen-Rechtenbach, DE

Key dates

Filing date	Oct 14, 1997
Grant date	Aug 29, 2000
Priority date	—
Expiry date	Oct 14, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02D30/50
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for entering and leaving a power-saving operation of a subscriber in an annular communication network includes transmitting data in the communication network in a format that prescribes a pulsed sequence of individual bit groups of identical length in which specific bit positions are reserved for a preamble which is decoded in a receive circuit of each subscriber. During a power-saving operation of a subscriber, at least part of the subscriber which contains the receive circuit remains turned on, and at least one special preamble code is provided, upon the reception of which a part of the subscriber turned off during the power-saving operation is turned on again.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.