Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent
1994-03-08
1996-12-10
Kuntz, Curtis
Telephonic communications
Having light wave or ultrasonic link for speech or paging...
Including fiber optic link within telephone network
370349, 370389, H04Q 720
Patent
active
055839134
ABSTRACT:
A mobile switching center of this invention includes a public network interface, a communication signal processing unit for performing code translation, a packet switching unit for performing switching of a packet signal between the communication signal processing unit and a radio base station in accordance with the destination of the packet signal, and a packet signal selecting apparatus. The packet signal selecting apparatus includes one input terminal, a plurality of signal storage sections for respectively storing a plurality of packet signals input through the input terminal, a switching means for distributing a plurality of continuously input packet signals to the plurality of signal storage sections and causing them to respectively store the signals, and a discrimination unit for comparing some or all of the packet signals stored in all the signal storage sections with each other to select one packet signal, and outputting the selected packet signal.
REFERENCES:
patent: 5195091 (1993-03-01), Farwell et al.
Nakajima, Nobuo, et al., "Design Concept of Digital Mobile Communication Systems", B-317 Proceedings of the 1991 IEICE Spring Conference, pp. 2-317.
Shinagawa, et al., "Digital Mobile Radio Switching System", Globecom '90, vol. 1, Dec. 2, 1990, pp. 485-489.
Ishino, Fumiaki, et al., "Mobile Communication Switching System for Voice/Nonvoice Services", IEEE Globecom '91, pp. 1485-1489, 1991.
Chernoff Michael B.
Kuntz Curtis
NEC Corporation
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