Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2007-05-01
2007-05-01
Bocure, Tesfaldet (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
Reexamination Certificate
active
10617657
ABSTRACT:
A method for generating an internal sequence of analog values having a specific period includes producing an intermediate value by a logical combination of an actual value of the external sequence with an actual value of a second generating sequence, producing an input value to an analog feedback shift register by superposition of the intermediate value with an analog feedback value derived according to a feedback function from analog values in the analog feedback shift register, and feeding the input value to an input of the analog feedback shift register. A position of an actual value of the second generating sequence corresponds to a position of a segment in the first generating sequence, the segment including a determinative set of n binary values derived from the analog values in the analog feedback shift register.
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patent: 2005/0254558 (2005-11-01), Dutka
patent: WO 01/37441 (2001-05-01), None
B. Vigoda, Masters Thesis, Mit. Media Lab., Online, XP-002167577, pp. 9-90, “A Nonlinear Dynamic System for Spread Spectrum Code Acquisition”, Aug. 9, 1999.
Kaegi Daniel
Mathis Heinz
Thiel Andreas
Bocure Tesfaldet
U-Blox AG
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