Patent · US Expired

Circuit arrangement for the synchronization of a digital subscriber station by a digital exchange in a PCM telecommunication network

US4340962A · kind A · utility

8Cited by

4References

4Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Klaus Wintzer · Munich, DE
Josef Zemanek · Munich, DE
Frithjof von Sichart · Munich, DE

Key dates

Filing date	Jul 7, 1980
Grant date	Jul 20, 1982
Priority date	—
Expiry date	Jul 7, 2000

Classification

Technology area (CPC H)Electricity
CPC primaryH04Q11/04
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Circuit arrangement for synchronizing a subordinate system, in particular a digital subscriber station, by a superordinate system, in particular a digital exchange, in a PCM time-multiplex telecommunication network. The circuit arrangement operates to evaluate only those synchronization bit combinations which lie at the beginning of a message signal block, thereby avoiding initiation of a re-synchronization during transmission of a block.

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