US 7,321,601 B2
Method and apparatus for data transfer using a time division multiple frequency scheme supplemented with polarity modulation
Gerald D. Rogerson, Poway, Calif. (US); David S. Furuno, San Diego, Calif. (US); Stephan W. Gehring, Menlo Park, Calif. (US); Michael L. Walker, San Diego, Calif. (US); and Roberto Aiello, Palo Alto, Calif. (US)
Assigned to General Atomics, San Diego, Calif. (US)
Filed on Feb. 20, 2003, as Appl. No. 10/372,075.
Application 10/372075 is a continuation in part of application No. 10/255103, filed on Sep. 26, 2002, granted, now 6,781,470.
Application 10/255103 is a continuation in part of application No. 10/255111, filed on Sep. 26, 2002, granted, now 6,895,059.
Claims priority of provisional application 60/359044, filed on Feb. 20, 2002.
Claims priority of provisional application 60/359045, filed on Feb. 20, 2002.
Claims priority of provisional application 60/359064, filed on Feb. 20, 2002.
Claims priority of provisional application 60/359147, filed on Feb. 20, 2002.
Claims priority of provisional application 60/359094, filed on Feb. 20, 2002.
Claims priority of provisional application 60/359095, filed on Feb. 20, 2002.
Claims priority of provisional application 60/359046, filed on Feb. 20, 2002.
Claims priority of provisional application 60/326093, filed on Sep. 26, 2001.
Prior Publication US 2003/0202537 A1, Oct. 30, 2003
This patent is subject to a terminal disclaimer.
Int. Cl. H04J 4/00 (2006.01); H04B 14/04 (2006.01)
U.S. Cl. 370—478  [370/480; 370/203; 375/253] 19 Claims
OG exemplary drawing
 
1. A method of data transmission, said method comprising:
encoding an ordered set of m data values to produce a corresponding series of ordered n-tuples; and
according to the series of ordered n-tuples, transmitting a plurality of bursts, each burst occupying at least one of a plurality n of frequency bands,
wherein, for each of the plurality of bursts, a frequency band occupied by the burst is indicated by the order within its n-tuple of an element corresponding to the burst, and
wherein a bandwidth of at least one of the plurality of bursts is at least two percent of the center frequency of the burst, and
wherein information is encoded into a polarity of at least one of the plurality of bursts.