Rake receiver and a method of operating a rake receiver
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Jun 12, 2003
app pub date -
Sep 30, 2002
filing date -
Mar 30, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A rake receiver (40) includes, in a finger, a subtractor (31) which is arranged to detect the difference in power between early and late samples E1P, L1P of a signal being received at a particular position in the code space. A subtractor (33) operates in the same way on an adjacent finger. The receiver includes multipliers (32, 34) which operate to reduce the amplitude of signals provided to the subtractors (31, 33) if it is detected that the fingers are close together in the code space. The fingers are thereby opposed from moving together and the signals from the fingers thereby continue to be processed separately. Data for controlling the multiplication factor of the multipliers (32, 34) is stored in a look-up table (41).
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