公开(公告)号：US20230179315A1

公开(公告)日：2023-06-08

申请号：US18049932

申请日：2022-10-26

Applicant: IMEC VZW ,  ShanghaiTech University

Inventor： Xinzhe Liu ,  Raees Kizhakkumkara Muhamad ,  Dessislava Nikolova ,  Yajun Ha ,  Francky Catthoor ,  Fupeng Chen ,  Peter Schelkens ,  David Blinder

IPC: H04J11/00

CPC classification number: H04J11/00

Abstract: Example embodiments relate to methods for disseminating scaling information and applications thereof in very large scale integration (VLSI) implementations of fixed-point fast Fourier transforms (FFTs). One embodiment includes a method for disseminating scaling information in a system. The system includes a linear decomposable transformation process and an inverse process of the linear decomposable transformation process. The inverse process of the linear decomposable transformation process is defined, in time or space, as an inverse linear decomposable transformation process. The linear decomposable transformation process is separated from the inverse linear decomposable transformation process. The linear decomposable transformation process or the inverse linear decomposable transformation process is able to be performed first and is defined as a linear decomposable transformation I. The other remaining process is performed subsequently and is defined as a linear decomposable transformation II. The method for disseminating scaling information is used for a bit width-optimized and energy-saving hardware implementation.