Multiformat auto-handoff communications handset

Details Multiformat auto-handoff communications handset Multiformat auto-handoff communications handset

1995-11-02

1997-07-15

Urban, Edward F.

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

455 84, H04B 138

Patent

active

056493088

ABSTRACT:
Disclosed is an apparatus and method for supporting communications and handoffs between multiple signal formats at multiple carrier frequencies. Antenna circuitry which includes a linearly polarized antenna and a circularly polarized antenna is utilized to receive and transmit the multiple signal formats at the multiple carrier frequencies simultaneously. A pair of RF signal paths each including RF transmit circuitry, RF receive circuitry and RF processing capabilities are utilized to support simultaneous communications between two signal formats. A multisystem controller in communications with each RF signal path initiates and completes handoffs between the multiple signal formats utilizing both RF signal paths to achieve uninterrupted communications across a large service coverage area.

REFERENCES:
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 4972455 (1990-11-01), Phillips et al.
patent: 5020092 (1991-05-01), Phillips et al.
patent: 5020093 (1991-05-01), Pireh
patent: 5101501 (1992-03-01), Gilhousen et al.
patent: 5127042 (1992-06-01), Gillig et al.
patent: 5252979 (1993-10-01), Nysen
patent: 5295152 (1994-03-01), Gudmundson et al.
patent: 5323446 (1994-06-01), Kojima et al.
patent: 5329635 (1994-07-01), Wadin et al.
patent: 5392462 (1995-02-01), Komaki
patent: 5428664 (1995-06-01), Kobayashi
patent: 5438683 (1995-08-01), Durlcer et al.
patent: 5509035 (1996-04-01), Teidemann, Jr. et al.

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