Pulse or digital communications – Spread spectrum
Reexamination Certificate
2005-04-22
2010-10-26
Fan, Chieh M. (Department: 2611)
Pulse or digital communications
Spread spectrum
C455S067110, C455S067130
Reexamination Certificate
active
07822098
ABSTRACT:
A method generates a radio signal to be used for ranging. For each of one of multiple frames to be transmitted as a ranging symbol, a first time interval and a second time interval are allocated. The ranging symbol is then transmitted as a set of pulses in each of the frames only during the first time interval, and the second time interval has a length to reduces inter-frame interference.
REFERENCES:
patent: 7340009 (2008-03-01), Giannakis et al.
patent: 7620369 (2009-11-01), Molisch et al.
patent: 2005/0123024 (2005-06-01), Santhoff et al.
Aghdam Freshteh N
Brinkman Dirk
Fan Chieh M.
Mitsubishi Electric Research Laboratories Inc.
Vinokur Gene
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