Multiplex communications – Wide area network – Packet switching
Patent
1992-07-16
1995-03-07
Chin, Wellington
Multiplex communications
Wide area network
Packet switching
370109, 375267, 375347, H04B 712, H03C 500, H03K 710
Patent
active
053964845
ABSTRACT:
In a mobile communication system in which signals are temporally compressed into time slots of a frame structure, a composite signal such as a telephone signal or data signal is hybrid-modulated using the same radio carrier wave, whereby diversity transmission/reception are available. The telephone signal is frequency-modulated using a single time slot of a single radio communication channel which has been allocated between a mobile transceiver and a radio base station. The frequency-modulated signal is again amplitude-modulated by the same telephone signal so that diversity transmission/reception is available.
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patent: 5121391 (1992-06-01), Paneth et al.
patent: 5249174 (1993-09-01), Itoh
Technical Report of Institute of Electronics, Information and Communication Engineers, pp. 1-5, RCS 89-11, Jul. 24, 1989, Ito, "System Design of Portable Telephones, --A Proposal Of Time-Division, Time Compressed Multiplexing FM Mobile Radio System".
Technical Report of Institute of Electronics, Information and Communication Engineers, pp. 1-6, RCS 89-47, Jan. 18, 1990, S. Ito, "System Design Of Portable Telephones, --Theoretical Analysis Of Multipath Propagation Characteristics Of Time-Division, Time-Compressed Multiplexing FM Mobile Radio System".
Technical Report of Institute of Electronics, Information and Communication Engineers, pp. 49-56, RCS 89-65, Mar. 28, 1990, S. Ito, "Theoretical Analysis of Non-Simultaneous Load Advantage Of Time-Compressed Multiplexing Telephone Signal and Application To FM Mobile System".
Proceedings of the 40th IEEE Vehicular Technology Conference, May 6-9, 1990, pp. 220-225, S. Ito, "A Proposal Of Time-Division, Time-Compressed Multiplexing FM Mobile Radio System".
Proceedings of the 41st IEEE Vehicular Technology Conference, May 19-22, 1991, pp. 910-915, S. Ito, "A Proposal For Cellular Mobile Radio System Using Frequency Modulated Time-Compression Multiplexed Telephone Signal".
IEEE, pp. 562-565, Feb. 1992, S. Ito, et al., "An Experiment In The Existential Evidence Of The Gain Improvement Factor Theorem In Time-Division, Time-Compressed Multiplex Mobile Telephonic System".
Chin Wellington
Iwatsu Electric Co. Ltd.
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