US6708028B1

4G,3G,2G

Title

Multi-mode radio telephone

Application Number:

US19960746746

Publication Date:

16-03-2004

Family ID:

Application Date:

15-11-1996

Publication Country:

US

Priority Date:

22-12-1993

Abstract  Abstract

A radio telephone capable of being operated in more than one radio telephone system comprising communication means respectively associated with each of the more than one radio telephone system monitoring means for monitoring signals of the more than one radio telephone system and selection means responsive to said monitoring means for automatically selecting and re-selecting respective said communication means in accordance with the signals of one of the more than one radio telephone system fulfilling at least one predetermined criterion. The predetermined criterion can be based on a number of features such as received signal strength access rights system requests least BER or frame error rate and user velocity. The radio telephone can be used in a radio telephone system adapted to co-operate with at least one other radio telephone system comprising user information exchange means respectively associated with each of the at least one other radio telephone system for exchanging user information signals between the radio telephone system and the at least one other radio telephone system monitoring means for monitoring user information signals of the radio telephone systems and selection means for automatically assigning and re-assigning a user to one of the radio telephone systems in accordance with the user control signals fulfilling at least one predetermined criterion.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.