Pulse or digital communications – Transceivers – Modems
Patent
1996-08-22
1998-10-13
Chin, Wellington
Pulse or digital communications
Transceivers
Modems
375243, 375220, 371 32, 371 35, H04L 516
Patent
active
058223673
ABSTRACT:
A digital mobile data communication system includes a protocol converter in an exchange which simultaneously activates an FEC protocol receiver in a radio communication zone for modem communications at a rate of 2.4 Kbps and an ARQ protocol receiver in the radio communication zone for modem communications at a rate of 9.6 Kbps, and selects whichever one of the FEC protocol receiver or ARQ protocol receiver that has established receiving synchronization and the corresponding protocol transmitter.
REFERENCES:
patent: 5524122 (1996-06-01), Lepitre et al.
patent: 5526399 (1996-06-01), Kameda
patent: 5640673 (1997-06-01), Tanabe
patent: 5694391 (1997-12-01), Diachina et al.
patent: 5696766 (1997-12-01), Yeung et al.
Koshino Katuhide
Sakata Masayuki
Chin Wellington
NEC Corporation
Tran Congvan
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