Telecommunications – Radiotelephone system – Including personal numbering system
Reexamination Certificate
1997-09-09
2010-06-15
Trost, William G (Department: 2744)
Telecommunications
Radiotelephone system
Including personal numbering system
C455S435100, C455S411000
Reexamination Certificate
active
07738886
ABSTRACT:
A wireless digital personal communications system (or PCS) having a plurality of radio cell base stations, fixed terminals, and portable handset terminals, each having a predetermined radio cell coverage area. The wireless PCS has a full digital network interface. The personal communications system facilitates the interconnection and switching of PCS call traffic through the digital network interface and the public switched telephone network, or any switched network. The personal communications system has voice/data/image (or any combination thereof) and incoming and outgoing calling capability. The PCS is fully operational and compatible with any and all modulation approaches selected for wireless communications. The intercell protocol hand-off being provided through distributed logic which is implemented in software that is resident in the intelligent portable handset terminals, in the intelligent fixed terminals, in the intelligent base stations, and in the public switched telephone network (or any switched network). Alternative embodiments of the present invention include a wireless digital personal communications system having authentication means for authenticating a remote device; a wireless digital personal communications system having a combination of authentication means for authenticating a remote device and security means for securing signal and message content between an intelligent base station and a remote device, the security means including a predetermined encryption and decryption technique; a wireless digital personal communications system having dynamic zone grouping of portable handset terminals or fixed terminals; and a wireless digital personal communications system having call forwarding for unanswered calls.
REFERENCES:
patent: 4775997 (1988-10-01), West, Jr. et al.
patent: 4777646 (1988-10-01), Harris
patent: 4890315 (1989-12-01), Bendixen et al.
patent: 5260988 (1993-11-01), Schellinger et al.
patent: 5325419 (1994-06-01), Connolly et al.
patent: 5329578 (1994-07-01), Brennan et al.
patent: 5428668 (1995-06-01), Dent et al.
Bannack Gary J.
Ciannella, Jr. Frank A.
Connolly David A.
Czaplewski Ronald L.
Hallman Kenneth B.
SBC Properties L.P.
Toler Law Group
Trost William G
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