Linear-to-log converter for power estimation in a wireless...

Details Linear-to-log converter for power estimation in a wireless... Linear-to-log converter for power estimation in a wireless...

2005-04-19

2005-04-19

Mai, Tan V. (Department: 2124)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S518000

Reexamination Certificate

active

06883012

ABSTRACT:
A converter to convert an N-bit input in a linear scale to an M-bit output in a logarithmic scale. The converter includes a set of K subrange converters each coupled to a respective number of bits of the N-bit input that represents a subrange of the N-bit input, each subrange converter to convert the subrange into a respective output that would be the M-bit output if the most significant set bit in the N-bit input was in the subrange. The converter further includes a range selector having the N-bit input as an input, to indicate which of the subranges to select for an output, and a selector having as inputs the outputs of the subrange converters and coupled to the range selector to select the output of one of the subrange converters as the M-bit output. In one embodiment, the converters operate in parallel.

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