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:
May. 23, 2006
Filed:
Aug. 26, 1999
Stefan Hennen, Gauting, DE;
Eckhardt Belgardt, Bangalore, IN;
Annette Roder, München, DE;
Klemens Skorka, München, DE;
Klaus Steinigke, München, DE;
Stefan Hennen, Gauting, DE;
Eckhardt Belgardt, Bangalore, IN;
Annette Roder, München, DE;
Klemens Skorka, München, DE;
Klaus Steinigke, München, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A telecommunications system includes devices to provide output clock signals that are synchronous to at least one source clock signal. A main clock generator includes a selector to select one of the output clock signals. The main clock generator generates a main clock signal based on a selected one of the output clock signals. Each of the devices includes a quality detector (i) to detect a quality of the at least one source clock signal, and (ii) to interrupt providing an output clock signal in response to a decrease in quality of the at least one source clock signal. The main clock generator includes an interrupt detector to detect an interruption in an output clock signal provided by at least one of the devices. The selector selects a different output clock signal if the interrupt detector detects that the selected one of the output clock signals is interrupted.