AT411685T

Enhanced wireless packet data communication system, method, and apparatus apllicable to both wide area networks and local area networks

Abstract

A system, comprising: a processor configured to transmit a signal transmitter including transmitter: a QAM submodulador state 2 P (E240, E250, E260) configured to receive original data stream and to produce an encoded data stream of symbols a modulator frequency-shift keying M-ary (E280) configured to receive the encoded data stream and to modulate each symbol as a tone sequence length P, each tone sequence length P a frequency corresponding one of M frequencies, and each corresponding single tone sequence length P to a respective unique symbol, and a mechanism for transmitting each of the sequences of tones as the signal length P; and a receiver configured to receive the signal and to demodulate incoherently signal to recover the original data stream, the receiver including: a demodulator for frequency-shift keying M-ary (A710) configured to receive the signal and to demodulate the signal to produce a sequence of demodulated tones, each corresponding tone to one of the M frequencies, and a QAM subdemodulador state 2 P (A725, A730) configured to receive the sequence of demodulated tones, to correlate the sequence of tones demodulated flow coded data symbols, and to decode the encoded data stream of symbols to produce the original data stream, wherein P is equal to 4 and M is equal to 7.

Term

No projected expiry on record.

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Priority claims
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27967101United States of AmericaP

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EP1382172A1European Patent Office (EPO)A1
US2004131125A1United States of AmericaA1
EP1382172A4European Patent Office (EPO)A4
US2007071114A1United States of AmericaA1
AT411685TThis recordAustriaT
ATE411685T1AustriaT1
EP1382172B1European Patent Office (EPO)B1
DE60229370D1GermanyD1
US7477694B2United States of AmericaB2
PT1382172EPortugalE
ES2312581T3SpainT3
US2009103509A1United States of AmericaA1
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CA2704035CCanadaC
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CA2704041CCanadaC
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CA2704030CCanadaC
US9094022B2United States of AmericaB2
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CA2442821CCanadaC
CA2818517CCanadaC