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:
Apr. 27, 2004
Filed:
Feb. 08, 2000
Applicant:
Inventors:
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 3/06 ;
U.S. Cl.
CPC ...
H04J 3/06 ;
Abstract
The present invention relates to a method for maintaining a time reference which is governed by a high clock frequency produced by a first clock frequency generator, in which a changeover is essentially made, for a changeover time period, to a low clock frequency produced by a second clock frequency generator. The apparatus of the invention maintains the time reference governed by the high clock frequency, wherein a changeover is made to the low clock frequency for a specific changeover time period. The invention is advantageously used to save power in electronic apparatus such as in mobile stations of mobile radio systems.