Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent
1993-10-04
1995-05-30
Kuntz, Curtis
Telephonic communications
Having light wave or ultrasonic link for speech or paging...
Including fiber optic link within telephone network
379 58, 455 331, H04Q 732
Patent
active
054209110
ABSTRACT:
The present invention is directed to a cellular mobile radio telephone system in which mobile stations may select either analog or digital control channels. Analog and dual-mode mobile stations are equipped to become multi-mode mobile stations which monitor both analog and digital control channels depending on the selected mode. Downlink multi-mode mobile stations, while required to use analog control channels for call access, may nonetheless scan digital control and paging channels to receive downlink control and paging communications from the land-based system. Bi-directional multi-mode mobile stations have the same capabilities as downlink mobiles but also are equipped to transmit control information to the land station over the uplink digital control channel. If no digital control channel is available, the multi-mode mobile stations scan primary and secondary sets of analog control channels. In this way, analog and dual-mode mobile stations may benefit from the advantages of monitoring digital control channels and digital paging channels including multiple pages per channel and battery-saving capabilities.
REFERENCES:
patent: 3906166 (1975-09-01), Cooper et al.
patent: 4400585 (1983-08-01), Kaman et al.
patent: 4713808 (1987-12-01), Gaskill et al.
patent: 4750198 (1988-06-01), Harper
patent: 4850033 (1989-07-01), Eizenhofer et al.
patent: 4857915 (1989-08-01), Andros et al.
patent: 4903319 (1990-02-01), Kasai et al.
patent: 4903320 (1990-02-01), Hanawa
patent: 4989230 (1991-01-01), Gillig et al.
patent: 5119397 (1992-06-01), Dahlin et al.
patent: 5150362 (1992-09-01), Akerberg
patent: 5228074 (1993-07-01), Mizikovsky
Motorola brochure: DYNA T.A.C 6000X Universal Mobile Telephone, 1984, 6 pages.
Article: IEEE Communications Magazine, "Trends in Cellular and Cordless Communications", Jun. 1991, Goodman, pp. 31-40.
Article: Ericsson Review, "Introduction of Digital Cellular Systems in North America", Lindell et al., No. 2, vol. 67, 1990.
Article: Telecommunications, "Hughes Network Systems Jump into the Cellular Arena with GM Backing", Global News Section, pp. 15-16, Feb. 1991.
Dahlin Jan E. A. S.
Ghisler Walter
Mueller Walter G. A.
Bost Dwayne D.
Kuntz Curtis
Telefonaktiebolaget L M Ericsson
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