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:
Jan. 14, 1997
Filed:
Dec. 22, 1995
Applicant:
Inventors:
Nenad Antic, Sollentuna, SE;
Walter Ghisler, Upplands Vasby, SE;
Assignee:
Telefonaktiebolaget LM Ericsson, Stockholm, SE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q / ;
U.S. Cl.
CPC ...
455 331 ; 455-8 ; 455 531 ; 455 671 ; 377 59 ; 395618 ; 395615 ; 3642821 ;
Abstract
A mobile telephone system with two home location register units mirroring each other is disclosed. In the event of a crash in one unit a backup copy is first loaded. Thereafter, records in the loaded backup copy that have changed after the latest position dump before the crash are updated with information from the other home location register unit, the mirror copy of which is updated after the position dump.