System and method for transmitting special marker symbols

Details System and method for transmitting special marker symbols System and method for transmitting special marker symbols

1997-11-26

2000-10-24

Le, Amanda T.

Pulse or digital communications

Transceivers

Modems

375261, 375264, 375269, 375298, 375324, 375340, 370207, 379 9308, 329304, 332103, H04L 512

Patent

active

061378291

ABSTRACT:
A system and method for the transmission of additional special marker symbols in a circular signal space constellation allows the communication of additional control information without requiring any additional power to transmit the additional symbol. Additional symbols can include "Start of Message", "End of File", "End of Transmission", "Increase Data Rate", "Decrease Data Rate", "Save State" or "Clear", or any additional command signal desired to be transmitted.

REFERENCES:
patent: 3775688 (1973-11-01), Hinoshita et al.
patent: 4627077 (1986-12-01), Armstrong
patent: 5103227 (1992-04-01), Betts
patent: 5444712 (1995-08-01), Betts et al.
patent: 5751774 (1998-05-01), Wang

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