Multiplex communications – Generalized orthogonal or special mathematical techniques – Particular set of orthogonal functions
Reexamination Certificate
2007-02-13
2007-02-13
Pezzlo, John (Department: 2617)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Particular set of orthogonal functions
C370S342000, C375S144000, C375S347000, C375S350000
Reexamination Certificate
active
10050462
ABSTRACT:
A method and apparatus for acquiring time and frequency synchronization in a DSSS receiver are disclosed. An iterative approach is used in acquiring a DSSS signal when the phase coherency of the signal is less than the symbol length.
REFERENCES:
patent: 5903550 (1999-05-01), Spock
patent: 6522683 (2003-02-01), Smee et al.
patent: 2005/0169295 (2005-08-01), Yun et al.
TR45 -Mobile Station-Base Station Compatibility Standard for Dual-Mode Spread Spectrum Systems, Oct. 1, 1998, To be published as TIA/EIA-95-B 16 pp. (See pp. 7-3-7-4).
3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Spreading and modulation (FDD) Release 1999, 28 pp. (See pp. 8 & 9).
Digi International Inc.
Heimlich Law
Heimlich, Esq. Alan
Mehra Inder Pal
Pezzlo John
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