Converter
AssigneeKYOCERA Corporation
InventorShinsuke Moriai
Life of this patent
Estimating the term…
Abstract
A bit-converting unit inputs from an FFT unit a multicarrier signal converted into the frequency domain and shown as a floating-point number. The bit-converting unit specifies the position of the highest-order bit for each of a plurality of subcarriers that form the multicarrier signal and determines the position of a bit width to be commonly used for each of the plurality of subcarriers based on the specified position of the highest-order bit. The bit-converting unit converts the multicarrier signal from a floating-point number to a fixed-point number while using the determined position of the bit width. The bit-converting unit outputs the converted multicarrier signal to a reception processor that performs fixed-point arithmetic.
Claims2
A converter comprising:
- an input unit operative to input a multicarrier signal that has been converted into the frequency domain and that is also a multicarrier signal shown as a floating-point number;
- a converting unit operative to perform conversion from a floating-point number to a fixed-point number on the multicarrier signal input by the input unit;
- and
- an output unit operative to output the multicarrier signal converted by the converting unit to a signal processor that performs fixed-point arithmetic, wherein
- the converting unit includes:
- a specification unit operative to specify the position of the highest-order bit for each of the plurality of subcarriers that form the multicarrier signal;
- a determination unit operative to determine the position of a bit width to be commonly used for each of the plurality of subcarriers based on the position of the highest-order bit specified by the specification unit;
- and
- a processing unit operative to convert the multicarrier signal while using the position of the bit width determined by the determination unit.
Dependencies are inferred from the claim text.