Signal processing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
May 12, 2005
app pub date -
Jun 6, 2003
filing date -
Dec 7, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A filter (26) is used to average power values of a signal that has been subjected to varying gain. The gain is factorised into two factors, the first being the highest power of 2 within the gain, and the second being a factor which can be multiplied with the first factor to reprodeuce the gain. The power values are divided by the second factor before reaching the filter (26) and by the first factor after passing through the filter (26). The signal values already in the filter (26) are bit-shifted when the exponent in the first changes so that the filter is not disrupted by changes in the gain.
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