Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2002-12-20
2008-11-04
Tran, Khai (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S130000
Reexamination Certificate
active
07447258
ABSTRACT:
A method for performing reacquisition in a positioning receiver (PR) is described, in which at least one spread spectrum modulated signal is received. In the positioning receiver (PR), a reference signal is formed by using a reference code corresponding to the code used in the modulation of the signal to be received, and a correlation is made between the received signal and the reference signal. The correlation is made in at least a first and a second part, and different correlation times are used in the first part and in the second part. The invention also relates to an electronic device (ED) comprising a positioning receiver (PR) for performing this reacquisition method.
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Pietila Samuli
Valio Harri
Fressola Alfred A.
Nokia Corporation
Tran Khai
Ware Fressola Van Der Sluys & Adolphson LLP
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