Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2000-03-01
2008-10-14
Odom, Curtis B (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C714S752000, C714S792000
Reexamination Certificate
active
07436895
ABSTRACT:
A method for performing a space-time coding of an information signal to be transmitted by a multi-channel communication system includes demultiplexing received signals into at least two first space-time coded signals and at least two second space-time coded signals, obtaining a first decoding output signal by using a first decoder performing a first space-time decoding based on the at least two first space-time coded signals and a first a-priori probability signal, applying the output of one of a first decoder or a first conversion unit converting the output of the first decoder to a first substracting unit where an a-priori information signal is subtracted, scrambling the output of the first subtracting unit so as to generate a scrambled extrinsic information, applying one of the scrambled extrinsic information or an output of a second conversion unit converting the scrambled extrinsic information as a second a-priori probability to a second decoder receiving that at least two second space-time encoded signals, applying the output of one of the second decoder or a third conversion unit converting the output of the second decoder to a second subtracting unit which has another input receiving the scrambled extrinsic information, generating a descrambled signal based on the output of the second subtraction unit, and applying the descrambled signal or an output of a fourth conversion unit as the first a-priori probability signal to the first decoder.
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Connolly Bove & Lodge & Hutz LLP
Odom Curtis B
Spyder Navigations L.L.C.
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